Answers
Answer:
Step-by-step explanation:
For number 11)
[tex]\frac{x+3}{4} = 1[/tex] cross multiply expressions
4 = 3+x subtract 3 from both sides
1 = x
for number 14)
[tex]\frac{x+8}{12} = 1[/tex] cross multiply expressions
x+8 = 12 subtract 8 from both sides
x = 4
for number 16)
[tex]\frac{8+x}{3} = 10[/tex] cross multiply expressions
8+x = 30 subtract 8 from both sides
x = 22
for number 19)
[tex]\frac{-9 + b}{32} = -1[/tex] cross multiply expressions
-9 + b = -31 add 9 to both sides
b = -22
Related Questions
What is the value of z for the equation fraction 1 over 2z = −fraction 3 over 4 + fraction 1 over 4z? −3 −1 1 3
Answers
Answer:
z= -3
Step-by-step explanation:
Given:
1/2z =-3/4 + 1/4z
Collect like terms
1/2z - 1/4z = -3/4
Add 1/2z - 1/4z
2z-z / 4 = -3/4
We have
z/4=-3/4
Same as
z(1/4) = -3/4
Divide both sides by 1/4
z(1/4) ÷ 1/4 = -3/4÷1/4
z(1/4) × 4/1= -3/4 × 4/1
z(4/4) = -12/4
z= -3
The value of z= -3
Answer:
-3
Step-by-step explanation:
I got it right on the test
Select the correct answer. Frank created a scatter plot and drew a line of best fit, as shown. What is the equation of the line of best fit that Frank drew?
Answers
The equation of the line of best fit that Frank drew will be y = -(1/3) x + 16. Then the correct option is D.
What is the equation of a line passing through two points?Suppose the given points are (x₁, y₁) and (x₂, y₂), then the equation of the straight line joining both two points is given by
[tex]\rm (y - y_1) = \left [ \dfrac{y_2 - y_1}{x_2 - x_1} \right ] (x -x_1)[/tex]
Frank created a scatter plot and drew a line of best fit, as shown.
From the graph, the two points are taken that are (0, 16) and (3, 15).
(x₁, y₁) → (0, 16)
(x₂, y₂) → (3, 15)
Then the equation of line will be
y – 16 = -1/3(x – 0)
y = -(1/3) x + 16
Then the correct option is D.
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Can someone help me on this math question its confusing ill give brainly when right!!!
Answers
You combine all the Ms and all the ns, then you write the terms in alphabetical order, so the Ms go first!
help me out this is important ot me to get an A
Answers
Answer:
Step-by-step explanation:
4*10^7/6*10^5=6.67, so (B) is the answer.
Answer: Do 4 x 10x10x10x10x10x10x10 do 6x 10x10x10x10x10 once you get those answers you subtract them and that is your answer.
Find the area of the following shape. Show all work
Answers
Best way to solve this is by using
[tex] \sqrt{s(s - a)(s - b)(s - c)} [/tex]
[tex]where \: s = \frac{a + b + c}{2} [/tex]
s=(12+8+17)/2
=18.5
using the formulae
area =43.5
Given that ∆MTW ≅ ∆CAD, which angles are corresponding parts of the congruent triangles? ∠T ≅ ∠C ∠T ≅ ∠A ∠T ≅ ∠D
Answers
Answer:
∠T ≅ ∠A
Step-by-step explanation:
Since, ∆MTW ≅ ∆CAD
Therefore, ∠T ≅ ∠A (cpct)
Factor 2x2 − 4x − 30 completely. (5 points) 2(x − 5)(x + 3) 2(x − 3)(x + 5) (2x + 3)(x − 5) (2x − 5)(x + 3)
Answers
Answer:
The answer is
2( x + 3)(x - 5)Step-by-step explanation:
To factor the expression
2x² - 4x - 30
First factor 2 out of the expression
That's
2( x² - 2x - 15)
Next write - 2x as a difference
2( x² + 3x - 5x - 15)
Factor out x from the expression
That's
2 [ x( x + 3) - 5x - 15 ]
Factor out -5 from the expression
2 [ x ( x + 3) - 5( x + 3) ]
Factor out x+3 from the expression
We have the final answer as
2( x + 3)(x - 5)Hope this helps you
Answer:
C. 2(x - 5) (x + 3)
Step-by-step explanation:
I took the test
Two rectangles are joined together to form a single large area. The rectangles do not overlap. The first rectangle has side lengths of 333 meters and 555 meters. The second rectangle has side lengths of 777 meters and 444 meters. What is the combined area?
Answers
Answer:
Step-by-step explanation:
333 times 555=184815
777 times 444=344988
now add 184815+344988=529803
Rewrite the radical expression as an expression with rational exponents. fifth root of x to the power of 9
Answers
Answer:
[tex]x^\frac{9}{5}[/tex]
Step-by-step explanation:
[tex]\sqrt[5]{x}[/tex] is the same thing as [tex]x^{\frac{1}{5}}[/tex].
Now if we have [tex]x^{\frac{1}{5}}[/tex] to the power of 9, the exponents are multiplied.
[tex]x^{\frac{1}{5} \cdot9} = x^{\frac{9}{5} }[/tex].
Hope this helped!
What is the value of g(f(x)) f(x)=2x^2+3 g(x)=x-4
Answers
Answer:
2x^2 -1
Step-by-step explanation:
f(x)=2x^2+3
g(x)=x-4
g(f(x))
Replace x in g(x) with the function f(x)
g(f(x)) = 2x^2+3 -4
Combine like terms
=2x^2 -1
4.
A turtle crawls 567 mm in 27 minutes. How far (measured in cm) can the turtle
crawl in a minute?
Answers
Answer: 2.1 cm per minute
Step-by-step explanation:
567/27 =21 mm
convert mm to cm (1mm = 0.1c,)
21mm = 2.1cm
Answer:
2.1 cm or 21 mm
Step-by-step explanation:
567 ÷ 27 = 21
Therefore the turtle can crawl 21 mm in a minute.
To covert mm to cm, we simply divide by 10.
21 ÷ 10 = 2.1
A manufacturing plant earned 4000 pesos per man-hour of labor when it opened. Each year, the plant earns an additional 6% per man-hour. What expression gives the amount the plant earned per man-hour of labor 3 years after it opened?
Answers
Answer:
866.16??????
Step-by-step explanation:
The amount is 4,494.40 plant earned per man-hour of labor 3 years after it opened.
It is required to find the amount the plant earned per man-hour of labor 3 years after it opened.
What is a geometric sequence ?A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant. where r is the common ratio between successive terms.
Given:
A manufacturing plant earned 4000 pesos per man-hour of labor.
Rate= 6% per man-hour.
Time=3 years
We can consider the geometric sequence formula
[tex]A_{n} = A_{1} r^{n-1}[/tex]
[tex]A_{1}[/tex]= 4000
r = 1.06/1 = 1.06
n = 3
Substitute:
[tex]A_{3} = 4000(1.06)^{3-1} \\A_{3} = 4000(1.06)^{2}\\A_{3}= 4000(1.1236)\\A_{3} = 4,494.40[/tex]
Therefore, the amount is 4,494.40 plant earned per man-hour of labor 3 years after it opened.
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Jamal uses factoring to find the zeros of the equation x2+4x−32=y. He concludes that the graph intersects the x-axis at x=−4 and x=8.
Which statement BEST explains whether Jamal is correct or incorrect?
A
Jamal is correct because x2+4x−32 is equivalent to (x+4)(x−8).
B
Jamal is correct because x2+4x−32 is equivalent to (x−4)(x+8).
C
Jamal is incorrect because x2+4x−32 is equivalent to (x−4)(x+8).
D
Jamal is incorrect because x2+4x−32 is equivalent to (x+4)(x−8).
Answers
Answer:
c)
Step-by-step explanation:
x^2+4x-32 = (x-4)(x+8)
hence,
(x-4)(x+8) = 0
x = 4 or x = -8
the graph intersects at 4 not -4
Jamal is incorrect because x2+4x−32 is equivalent to (x−4)(x+8). Option C is correct.
Jamal uses factoring to find the zeros of the equation x²+4x−32=y. He concludes that the graph intersects the x-axis at x=−4 and x=8.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
x²+4x−32=y
Let y = 0
x²+4x−32=0
x² + 8x - 4x - 32 = 0
x (x + 8) - 4 (x + 8) = 0
(x - 4)(x + 8) = 0
Thus, Jamal is incorrect because x2+4x−32 is equivalent to (x−4)(x+8). Option C is correct.
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what is nine and forty-two hundredths
Answers
Answer:
9.42
Step-by-step explanation:
Breaking the phrase down:
'Nine' would be the number 9 in the ones place.
'And' represents the decimal in a number. ('.')
'Forty-Two Hundredths" is 0.42.
So, "nine and forty-two hundredths" would be 9.42.
Hope this helps.
Set A={XIX is an even whole number between 0 and 2) = 0
True? or false?
Answers
false
Step-by-step explanation:
false
plz help quick
Find the area of the circle.
Use 3.14 for n. Do not round your answer.
Hint: A = hr2
Area = [?] inches
6 inches
Enter the number that
belongs in the green box.
Answers
Answer:
28.26 in ^2
Step-by-step explanation:
The diameter is 6 inches
The radius is 1/2 of the diameter
r = 1/d = 1/2(6) = 3 inches
A = pi r^2 = 3.14( 3)^2 = 3.14 (9) =28.26 in ^2
3a
[tex] \frac{3a + a {}^{2} }{a} [/tex]
Simplify.
Answers
Answer:
(3+a)
Step-by-step explanation:
3a + a^2
-------------
a
Factor out an a in the numerator
a(3+a)
-------------
a
Cancel like terms
(3+a)
Step-by-step explanation:
[tex] \frac{3a + {a}^{2} }{a} \\ = \frac{3a}{a} + \frac{ {a}^{2} }{a} \\ = 3 + a \\ thank \: you[/tex]
help me, asap, please
Answers
answer is 19
the explanation is in the attachment
Evaluate 2^2⋅4^3=
Your answer
Answers
Answer:
256
Step-by-step explanation:
First, handle the exponent:
2²=4 (2*2=4) and 4³=64 (4*4=16*4=64)
Now multiply those two outcomes:
4*64=256
This equation is also known as 4⁴
what is the answer to 1/8=s-3/4
Answers
Answer:
7/8 =s
Step-by-step explanation:
1/8=s-3/4
Add 3/4
1/8 + 3/4 = s -3/4 +3/4
1/8 + 3/4 = s
Get a common denominator
1/8 + 3/4 *2/2 = s
1/8 + 6/8 =s
7/8 =s
1/8 = s - 3/4
1/8 = s -6/8 ( * 2/2)
7/8 = s
s = 7/8
Can anyone help me with this question?
x^{2} + 7x -144
quadratic equations
Answers
Answer:
?
Step-by-step explanation:
Brainly challenge.
please helppp ill give brainliest the question is attached below
Answers
Answer: It is false, the diameter is not 16 m.
Step-by-step explanation:
P 4m are 8 m are 32 m away. The diameter= 32 m.
(I hope its rights!!!)
If P(x) = P[tex]_{n}[/tex][tex]x^{n}[/tex] + P[tex]_{n-1}[/tex][tex]x^{n-1}[/tex] + · · · + P[tex]_{0}[/tex] is divided by (x - a), show that the remainder is P(a)
Answers
If [tex]P(x) = p_nx^n + p_{n-1}x^{n-1}+\ldots+p_0[/tex] is divided by [tex](x-a)[/tex], then [tex]P(x) = (x-a) \cdot Q(x) + R(x)[/tex] for some polynomials [tex]Q,R[/tex]. Moreover, [tex]\deg R < 1[/tex] (because [tex]\deg (x-a) = 1[/tex]), so there exists [tex]\alpha \in \mathbb{R}[/tex] such that [tex]R(x) = \alpha[/tex] for all [tex]x \in \mathbb{R}[/tex]. But if we calculate [tex]P(a)[/tex], it turns out that [tex]P(a) = (a-a)\cdot Q(a) + \alpha[/tex], so [tex]R(x) = \alpha = P(a)[/tex]. [tex]\blacksquare[/tex]
Find the value of a.
a
52
Answers
Answer:
26
because a is gone in b than
Write the fraction as a decimal.
Answers
4.8(3)
This means the 3 repeats
Hope this helps *smiles*
What is the solution to the linear equation?
2/7+x=6/7+3/7x
Group of answer choices
1
7
1/2
4
Answers
Answer:
The answer to your question is 1, or answer choice A.
Step-by-step explanation:
x+ 2 /7 = 3 /7 x+ 6 /7
x+ 2 /7 − 3 /7 x= 3 /7 x+ 6 /7 − 3 /7 x
4 /7 x+ 2 /7 = 6 /7
4 /7 x+ 2 /7 − 2 /7 = 6 /7 − 2 /7
4 /7 x= 4 /7
( 7 /4)*( 4 /7 x)=( 7 /4 )*( 4 /7 )
x=1
What is g(x)?
Please help
Answers
Answer:
g(x) = -x²
Step-by-step explanation:
Answer:
-x^2
Step-by-step explanation:
The parent equation of a parabola is x^2.
Because the parabola is upside down, the equation becomes negative.
Help, Answer ASAP; will give brainliest
Answers
Answer:
a = 2, b = 3
Step-by-step explanation:
The diagonals of a rectangle bisect each other, thus
5a² = 4a² + 4 ( subtract 4a² from both sides )
a² = 4 ( take the square root of both sides )
a = [tex]\sqrt{4}[/tex] = 2
Also
6b - 8 = 4b - 2 ( subtract 4b from both sides )
2b - 8 = - 2 ( add 8 to both sides )
2b = 6 ( divide both sides by 2 )
b = 3
Given three consecutive odd integers whose sum is 369, find the smallest of the three integers.
Answers
Answer:
Step-by-step explanation:
369 = x + (x+2) + (x+4)
369 = 3x + 6
363 = 3x
121 = x
now that we know that x = 121, we can solve the equation by plugging in the variable
369 = x + (x+2) + (x+4)
369 = 121 + 123 + 125
369 = 369
The smallest three integers are 121,123 and 125.
Let, the smallest odd integers be n
Then according to the given condition,
[tex]n+(n+2)+(n+4)=369\\3n+6=369\\3n=363\\n=121[/tex]
So, the numbers are,
[tex]n=121\\n+2=121+2=123\\n+4=121+4=125[/tex]
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which of the following is true regarding number sets? a. all integers are whole numbers b. all irrational numbers are real numbers c. all real numbers are integers d. all rational numbers are natural numbers
Answers
Answer:the answer is A
Step-by-step explanation:
The step is
Real number - rational(irrational)_ - integer - whole - then natural
The true statement regarding number sets are b. all irrational numbers are real numbers.
What are irrational numbers ?Irrational numbers are those numbers which have a non-repeating, non-terminating pattern after decimal place.
According to the given statements we have to determine which is true.
a. all integers are not whole numbers as 0 contains in the set of whole numbers but not in the set of integers.
b. all irrational numbers are real numbers this is a true statement because all the real numbers consist of rational and irrational numbers.
We don't need to check other options because we have been asked which of the following is true not which of the following is/are true.
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