The solving linear equation states that the temperature of the oven is 119 after an minute.
What is a linear equation?A linear equation is just an algebraic equation of something like the form y=mx+b that only contains a constant and a first-order (linear) component, where m represents the slope and b is the y-intercept. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where y and x are now the variables.
According to the given data:Given:
y = 40x+79
X = number of minutes using it to bare:
When X = 1
y = 40(1)+79
y = 119
It means that the temperature of the oven is 119 after an minute.
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PLEASE HURRY I WANT TO FINISH THIS TEST PLEASE ASAP!!
Determine which integer will make the inequality x − 4 < 16 true.
The integers that would make the inequality true is the set of integers less than 20.
Solving Linear inequalitiesFrom the question we are to determine the integer that would make the given inequality true
The given inequality is
x - 4 < 16
To determine the integer that would make the inequality true, we will solve the inequality for the variable x
Solving the inequality
x - 4 < 16
Add 4 to both sides of the inequality
x - 4 + 4 < 16 + 4
x < 20
Hence, the solution to the given inequality is x < 20. All integers less than 20 will make the inequality true.
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A hospital is trying to cut down on emergency room wait times. It is interested in the amount of time patients must wait before being called back to be examined. An investigation committee randomly surveyed 70 patients. The sample mean was 1.5 hours with a sample standard deviation of 0.5 hours.
Which distribution should you use for this problem? (Enter your answer in the form z or tdf where df is the degrees of freedom.)
The distribution that is needed for the problem that we have here is the t distribution.
What is the t distribution?With its bell-shaped structure and heavier tails, the t-distribution, commonly referred to as the Student's t-distribution, is a kind of probability distribution that resembles the normal distribution.
When there are insufficient samples or unknown variances, it is used to estimate population parameters. T-distributions have broader tails than normal distributions because they are more likely to contain extreme values.
We have tn-1
where n = 70
so that we would have
t70 - 1
= t69
Therefore we would have to use the t distribution here.
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45 POINTS!!!!! WILL GOVE BRAINLYEST!!
Answer:
20 units
Step-by-step explanation:
we find the side lengths by looking at the coordinates and just counting up
Sides are 6,4,6,4
So we just add
6+4+6+4
10+10
20
Hopes this helps please mark brainliest
Answer: Your answer is 20 units, because the height is 6 units, and the length is 4 units, so we then multiply by 2 for both numbers, then add them together, having a sum of 20 units.
Hope that helps.
Please HELP 7 B(x)*C(x)
Answer: dont be rude
Step-by-step explanation:
help for brainlest please???
Answer:
45
Step-by-step explanation:
the pattern adds 3 if you look at it care fully
4.5,3,1.5,0 fin the difference in the following sequence
-1.5 is the difference in the sequence
How determine the difference in a sequence?
An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms are the same.
The difference is usually called the common difference. For example, the sequence 3, 6, 9, 12 have a common difference of 3 i.e. 6-3 = 3 or 9-6 = 3
Given: the sequence 4.5,3,1.5,0
The difference = 3 - 4.5 = -1.5 or 1.5-3 = -1.5
Note: You can pick any two consecutive terms to get the difference
Therefore, the difference in the sequence is -1.5
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The curved part of this figures is a semicircle.
What is the best approximation for the area of this figure?
Responses
28+16.25π units²
18 plus 16.25 pi, units²
14+16.25π units²
14 plus 16.25 pi, units²
14+8.125π units²
14 plus 8.125 pi, units²
28+8.125π units²
28 plus 8.125 pi, units²
Coordinate plane with axes labeled x and y. A closed figure is formed by two segments and a semicircle. A segment extends from negative 4 comma negative 2 to negative 4 comma 2. Another segment extends from negative 4 comma 2 to 3 comma 2. A semicircle extends from 3 comma 2 to negative 4 comma negative 2.
The correct option regarding the area of the figure is given as follows:
14+16.25π units².
How to obtain the area of a figure?The figure, given with no scale at the end of the answer, is composed by:
A semi-circle.A right-triangle.The sides of the right-triangle are given as follows:
7, as 3 - (-4) = 7.4, as 2 - (-2) = 4.The area of a right triangle is given by half the multiplication of the sides, hence:
At = 0.5 x 7 x 4 = 14 units.
The radius of the semicircle is half the hypotenuse of the right triangle, hence, applying the Pythagorean Theorem:
h² = 7² + 4²
h = sqrt(7² + 4²)
r = 0.5sqrt(7² + 4²)
r = 4.03 inches.
The area of a semicircle of radius r is:
As = πr².
Hence:
As = π(4.03)² = 16.25 π.
The total area is obtained as the sum of the areas of each separate part, hence:
A = At + As = 14+16.25π units².
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Answer:
Step-by-step explanation:
14+8.125
C
Graph the function with the given domain. Then identify the range of the function.
1) y = -6; domain: x ≥ 5
2) y = -x - 1; domain: -1 ≤ x ≤ 3
KT's Restaurant has contracted with the Vidalia Times for
5,000 column inches in daily newspapers and 10,000
column inches in the Saturday newspaper. Daily column
inches are $27.55, and Saturday rates are $29.35 per
column inch. How much should KT's Restaurant budget for
newspaper advertising for the coming year?
The budget of KT's Restaurant for newspaper advertising for the coming year is $58,533,500
Given,
The length of advertisement of KT's Restaurant in Vidalia Times in week days = 5,000
The length of advertisement of KT's Restaurant in Vidalia Times in Saturdays = 10,000
The cost of daily column = $27.55 per column inch
The cost of Saturdays = $29.35 per column inch
We have to find the budget of KT's Restaurant for newspaper advertising for the coming year;
Here,
There are approximately 53 Saturdays in a year.
So,
365 - 53 = 312
Then,
The budget of advertisement on daily column = 312 × 5000 × 27.55 = $42,978,000
The budget of advertisement on Saturday column = 53 × 10,000 × 29.35 = $1,555,500
Therefore,
The total budget for advertisement = 42,978,000 + 1,555,500 = $58,533,500
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If the pediatric floor of the hospital has 165 beds how many rooms are there if each room holds 3 beds?
There are 40 students in class. 12 like pink best, 4 like yellow and the rest blue. What fraction of the class likes blue?
Answer: [tex]\frac{3}{5}[/tex]of the class like blue
Step-by-step explanation:
There are : 40 - 12 - 4 = 24 ( students like blue )
[tex]\frac{24}{40}[/tex]= [tex]\frac{3}{5}[/tex]
The heights of adult men in America are normally distributed, with a mean of 69.2 inches and a standard deviation of 2.64 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.2 inches and a standard deviation of 2.53 inches.
If a man is 6 feet 2 inches tall, his z-score is equal to 1.82.
If a woman is 5 feet 10 inches tall, her z-score is equal to 2.92.
The 5 feet 10 inches American woman is relatively taller.
What is a z-score?In a normal distribution, the z-score of a given sample score can be calculated by using this formula:
Z-score = (x - μ)/σ
Where:
σ represents the standard deviation.x represents the sample score.μ represents the mean score.Next, we would convert the height in feet to inches as follows:
American man = 6 × 12 + 2 = 74 inches.
American woman = 5 × 12 + 10 = 70 inches.
For the American man's z-score, we have:
Z-score = (74 - 69.2)/2.64
Z-score = 4.8/2.64
Z-score = 1.82
For the American woman's z-score, we have:
Z-score = (70 - 64.2)/2.53
Z-score = 5.8/2.53
Z-score = 2.92
Therefore, the 5 feet 10 inches American woman is relatively taller because she has a higher z-score (2.92 > 1.82).
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Complete Question:
The heights of adult men in America are normally distributed, with a mean of 69.2 inches and a standard deviation of 2.64 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.2 inches and a standard deviation of 2.53 inches.
a) If a man is 6 feet 2 inches tall, what is his z-score (to two decimal places)?
b) If a woman is 5 feet 10 inches tall, what is her z-score (to two decimal places)?
c) Who is relatively taller?
The 6 feet 2 inches American man
The 5 feet 10 inches American woman
Josephine invests £3,500 in a bank account which pays annual compound interest of 4.5%. How much money will she have in the bank after: (a) 2 years, (b) 3 years?
Josephine have £3882.9 amount after 2 years and £3994.9 amount after 3 years.
Using the formula of compound interest we can find the amount after t years compounded annually at the r per cent rate.
The formula of compound interest is as follows,
[tex]A=p(1+\frac{r}{100} )^t[/tex]
Where P is the principal value, A is the amount, r is the rate and t is the time.
Here we have a principal value of £3,500 and a rate is 4.5%.
Now, finding the amount after 2 years by putting the values in the formula of compound interest,
[tex]A=p(1+\frac{r}{100} )^t\\\\A=3500(1+\frac{4.5}{100} )^2\\\\A=3500(1+0.045 )^2\\A=3500(1.045)^2\\A=3500\times1.092025\\A=3882.0875[/tex]
So, After 2 years Josephine will have £3882.9.
Now, finding the amount after 3 years,
[tex]A=p(1+\frac{r}{100} )^t\\\\A=3500(1+\frac{4.5}{100} )^3\\\\A=3500(1+0.045 )^3\\A=3500(1.045)^3\\A=3500\times1.141166125\\A=3994.0814375[/tex]
So, After 3 years Josephine will have £3994.9.
Therefore, After 2 years Josephine will have £3882.9 and after 3 years Josephine will have £3994.9 when 4.5% interest is compounded annually.
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The perimeter of an ICU ward, that is rectangular in shape, is 258 feet. The width is 37 feet less than the length. Find the dimensions of this ward.
Find Length(ft) and Width(ft)
The dimensions of the rectangle is 83 feet x 46 feet
What is the Perimeter of a Rectangle?
The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.
Perimeter P = 2 ( Length + Width )
Given data ,
The perimeter P of the rectangle = 258 feet
Let the length of the rectangle be = L
Let the width of the rectangle be = W
And , The width is 37 feet less than the length. ,
So , W = L - 37
Perimeter P = 2 ( Length + Width )
Substituting the values of L and W in the equation , we get
Perimeter P = 2 ( L + L - 37 )
2 ( L + L - 37 ) = 258
( L + L - 37 ) = 129
2L - 37 = 129
Adding 37 on both sides , we get
2L = 166
Divide by 2 on both sides , we get
Length L of the rectangle = 83 feet
Substituting the value of L in equation ,we get
W = L - 37
Width W of the rectangle = 46 feet
Therefore , Length = 83 feet and Width = 46 feet
Hence , the dimensions of the rectangle is 83 feet x 46 feet
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If f(x) = x² - 7x + k and f(k) = -9, then the value of f(-1) is
(A) -9
(B) -3
(C) 3
(D) 11
Answer:
D.) 11
Step-by-step explanation:
-9=-k^2-7k+k Plugging in k for x
-9=k^2-6k Combine like terms
0=k^2-6k+9 Add 9 to both sides
0=(k-3)(k-3) Factor
k=3
The equation is now
f(x)=x^2-7x+3
so
f(-1)=(-1)^2-7(-1)+3
f(-1)=1+7+3
f(-1)=11
What is the slope of the line on the graph?
Enter your answer in the box.
What is the size of angle x?
Write a justification for your answer.
The angle x will be 34°.
From the properties of circles we get to know that the angle at the center and the angle between two tangents are always supplementary.
Supplementary angles are those which always sum to to 180°.
For example ∠HJK is supplementary to ∠HIK the their sum will come out to be 180°.
similarly ∠ROP + ∠RQP = 180°
∠RQP = 180° - ∠ROP
∠ROP is given to us 146°
After putting it in the equation above we get ∠RQP = 34°
Therefore x comes out to be 34°.
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Which shows all the critical points for the inequality 2x+5/x-2 => x-1/x-2
x = 1, and x = 2 x = –6 and x = 2 x = –4 and x = 2 x = 2
The critical points of the given inequality are; x=-6 and x=2
What are the critical points of the Inequality?1) When the denominator is equal to zero, at that point, we will have a critical point.
We are given the inequality;
(2x + 5)/(x - 2) ≥ (x - 1)/(x - 2)
Thus, x - 2 = 0
x = 2.
Thus, x = 2 is a critical point
2) Simplify the numerator to get the expression such that p(x) ≥ 0 or p(x) ≤ 0.
Thus, at p(x) = zero, we have other critical point(s)
Multiply both sides by (x - 2) to get;
2x + 5 = x - 1
2x - x = - 1 - 5
x = - 6
Then, the two critical points are x = 2 and x = - 6.
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a ball is thrown up vertically. after t seconds, it's height (in feet) is given by the function h (t)=96t-16t^2 . after how long will it reach its maximum height
The time taken to reaches its maximum height is 3s.
In the question,
It is given that,
Height, h(t) = [tex]96t - 16t^{2}[/tex]
The maximum value of the function is obtained if the first derivative of the function h (t) = 0.
[tex]\frac{dh(t)}{dt} = 96 - 32t = 0[/tex]
⇒ [tex]t = 3[/tex]
So, time taken to reach its max height is 3 seconds.
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A medic's bag contains individually wrapped tongue depressors (each costing 4 cents) and Band-Aids (each costing 8 cents). If the materials are worth $12.48 and there are 184 individual packages in total, how many tongue depressors and Band-Aids are there?
# of Tongue Depressors:
# of Band-Aids:
The number of tongue depressors = 56
The number of Band-Aids = 128
What is an equation?
An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated.
Let x be the number of tongue depressors.
Let y be the number of Band-Aids
Convert cents to dollars
1 cent = $0.01
So, 4 cents = 0.01*4 = $0.04
8 cents = 0.01* = $0.08
The materials are worth $12.48 .
This means, 0.04x+0.08y=12.48......(1)
There are 184 individual packages in total.
This means, x+y=184.......(2) => x=184-y.....(3)
Substitute (3) in (1),
0.04(184-y)+0.08y=12.48
7.36-0.04y+0.08y=12.48
=> y= 128
(3) => x=184-128=56
So, the number of tongue depressors = 56
The number of Band-Aids = 128
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Please help me to solve this simple question.
I will mark your answer brainliest!
Answer:
4/3
Step-by-step explanation:
You want the limit as t→1 of (t³+t²-5t+3)/(t³-3t+2).
Simplified formThe fact that each polynomial evaluates to 0 at t=1 tells you that (t-1) is a factor of each. Factoring that out gives ...
[tex]\dfrac{t^3+t^2-5t+3}{t^3-3t+2}=\dfrac{(t-1)(t^2+2t-3)}{(t-1)(t^2+t-2)}=\dfrac{(t-1)(t-1)(t+3)}{(t-1)(t-1)(t+2)}\\\\=\dfrac{t+3}{t+2}[/tex]
The limit at t = 1 is found by direct substitution:
lim = (1 +3)/(1 +2) = 4/3
For which equation would x = 5 be a solution?
3x+6=21
12-2x = 13
7+ 6 x = 27
4x-7=27
Write an expression, in terms of h, for the perimeter of this triangle.
Simplify your answer fully.
7
14-6h
3h+3
Answer:
P = 24 - 3h-----------------------------------
It is assumed the sides of the triangle are7, 14 - 6h and 3h + 3Perimeter is the sum of three sidesP = a + b + cP = 7 + 14 - 6h + 3h + 3 = (7 + 14 + 3) + (3h - 6h) = 24 - 3hAnswer:
Perimeter = -3h + 24
Step-by-step explanation:
Forming the expression,
→ 7 + (14 - 6h) + (3h + 3)
Let's simplify the expression,
→ 7 + (14 - 6h) + (3h + 3)
→ 7 + 14 - 6h + 3h + 3
→ (-6h + 3h) + (7 + 14 + 3)
→ -3h + 24
Hence, answer is -3h + 24.
Please help I’ve been stuck on this question for awhile thanks:)
Does anyone know how to do this?
The length of BC is 50 miles (approx).
What is Trigonometry?
Trigonometry is a field of mathematics that explores the connections between triangle side lengths and angles.
Solution:
In the triangle ABC,
The perpendicular = BC
The Base = AB = 6 miles
by using the trigonometric ratio "tan"
tan (58) = BC / AB
8.33 = BC / 6
49.98 miles = BC
BC = 50 miles (approx)
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Please help question from 4 through 12 thank you very much
The answer to the questions from 4 through 12 are below:
4. z³ + 5z² + 5z + - 35. 4d + 6c - 66. 20a - 2b - 17. 40x8. 10x + 16y + 149. a² + 8a - 1010. 15v + 22w11. 10c² + 4c12. z³ - 8z² + 5z + 23What is the perimeter of a rectangle and triangle4. z³ + 5z + 3z² + 1 - 4 - 2z²
= z³ + 5z² + 5z + - 3
5. Perimeter of the square = Addition of all the sides
= (2d - 3) + (3c) + (2d - 3) + (3c)
= 2d - 3 + 3c + 2d - 3 + 3c
= 4d + 6c - 6
6. Perimeter of the triangle = Addition of all the sides
= (4a - 2b) + (9a - 4) + (7a + 3)
= 4a - 2b + 9a - 4 + 7a + 3
= 20a - 2b - 1
7. Perimeter of a square = 4 × side length
= 4 × 10x
= 40x
8. Perimeter of a rectangle = 2(length + width)
= 2{(2x + 7) + (3x + 8y)}
= 2(2x + 7 + 3x + 8y)
= 2(5x + 8y + 7)
= 10x + 16y + 14
Simplify the following
9. 3a + a² + 5(a - 2)
= 3a + a² + 5a - 10
= a² + 8a - 10
10. 8(v + w) + 7(v + 2w)
= 8v + 8w + 7v + 14w
= 15v + 22w
11. 4c² + 6(c + c²) - 2c
= 4c² + 6c + 6c² - 2c
= 10c² + 4c
12. z³ + 5(z + 3) + 4(2 - 2z²)
= z³ + 5z + 15 + 8 - 8z²
= z³ - 8z² + 5z + 23
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a sequence is defined by a term to term rule
iteration help please
By the sequence of term to term rule the value of : a) [tex]U_{1}[/tex]= [tex](U_{0})^{2}[/tex] + 3 =[tex]1^{2}[/tex] + 3 = 4 b). [tex]U_{2}[/tex] = [tex](U_{1})^{2}[/tex] + 3 = [tex]4^{2}[/tex] + 3 =19 c). [tex]U_{3}[/tex] = [tex](U_{2})^{2}[/tex] + 3 = [tex]19^{2}[/tex] + 3 = 364 .
What is the term to term rule like for you?
Give the first number in the sequence and then describe the pattern of the numbers to get the term-to-term rule. Three is the first number. The rule for terms to terms is "add 4." All of the terms in the series can be located once the initial term and term to
[tex]$$\mathrm{u}_0=1$$[/tex]
The difference is given by[tex]$u_{n+1}=\left(u_n\right)^2[/tex]+ 3
We have to simply put the value in their places to get the proper answer -
a). Put the [tex]$u_{n+1}=u_1$[/tex]
n+1 = 1 ⇒ n = 0
put n = 0in the formula[tex]$\mathrm{u}_{n+1}=\left(\mathrm{u}_n\right)^2[/tex] +3
we wil get
[tex]$$u_1=\left(u_0\right)^2[/tex] + 3 = [tex]1^{2}[/tex] =3 = 4
b). Put the [tex]$u_{n+1}=u_2$[/tex]
n + 1 = 2 => n = 1
put n=1 in the formula [tex]$u_{n+1}=\left(u_n\right)^2[/tex]+3
we wil get:
[tex]$$u_2=\left(u_1\right)^2[/tex]+3= [tex]4^2[/tex]+3=19
c). Put the [tex]$u_{n+1}=u_3$[/tex]
n + 1 = 3 => n = 2
Put n=2 in the formula+3
we wil get :
[tex]$$u_3=\left(u_2\right)^2[/tex] +3= [tex](19)^2[/tex] +3 =364
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Tammy must choose a number between 61 and 107 that is a multiple of 3,9 and 12. Write all the numbers that she could choose
Answer:
G LCM (least common multiple) of 3, 9, and 12. After doing that, find the number that is between 61 and 107.
Step-by-step explanation:
Least common multiple (lcm) is where g finds out the number that can be divided by all the numbers (3, 9, and 12 in this case) and still come out with a whole number.
help for brainlest????
Answer:
The answer is 55, you can figure this out as each number is increasing by 10
a_n=-5+10n
hope it helps
Graph y > -
5x + 5.
4
(I suggest using desmos graphing calculator for the future.)
(0,5) and (4,0) or the one in the left upper corner. Hope this helps.
(−3,y) and (x,2).
y=4x+6
orderd pair
The values of x and y are -1 and 6 respectively, this forms an ordered pair of (-3,6) and (-1,2).
What are the missing x and y values values of the given ordered pair?Given the equation and ordered pair in the question;
y = 4x + 6Point: (-3,y) Point; (x,2)Find the y-value by substituting the x-value into the equation and solving for y.
y = 4x + 6
Plug in x = -3
y = 4( -3 ) + 6
y = -12 + 6
y = 6
Find the x-value by substituting the y-value into the equation and solving for x.
y = 4x + 6
Plug in y = 2
2 = 4x + 6
2 - 6 = 4x
-4 = 4x
x = -4/4
x = -1
Therefore, the ordered pair are (-3,6) and (-1,2).
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