Answer:
C
Step-by-step explanation:
100-31.99-19.89=48.12
Question Write the phrase as an expression. Then evaluate the expression when y=12 . the difference of a number y and 9 The expression is . The value of the expression is .
Answer: y-9
12-9
=4
Step-by-step explanation:
Simple math
help me, please !!!!!
Answer:
Step-by-step explanation:
What is the principal solution to the equation?
x^2=121
Pls explain for brainliest and a like
1.step by step
2. correct answer
3. clearly explained
Answer:
x = 11
Step-by-step explanation:
[tex]x^{2}[/tex] = 121
This means that 'x' × 'x' = 121
To know the value of x, we need to find the root of 121.
[tex]\sqrt{121}[/tex] = 11
If u mutiply 11 x 11 , you get 121.
Thus, x = 11
Answer:
x = 11, -11
use the formula: [tex]\sf a^2 = b[/tex] ➳ [tex]\sf a = \sqrt{b}, \ a = -\sqrt{b}[/tex]
[tex]\hookrightarrow \sf x^2=121[/tex]
changing the sides, changes square ( ² ) to square root ( ±√ )
[tex]\hookrightarrow \sf x=\pm \sqrt{121}[/tex]
[tex]\hookrightarrow \sf x=\sqrt{121},\:x=-\sqrt{121}[/tex]
[tex]\hookrightarrow \sf x=11,\:x=-11[/tex]
Jay rides 30 miles in 2 hours. How many miles per hour (mph) does he ride?
Answer:
15 mph
Step-by-step explanation:
30÷2=15
Answer:
I believe 15 mph
Step-by-step explanation:
He rides 30 miles in 2 hours and we need to find how much in ONE hour so just divide 30 by 2 which should give you 15 miles per hour.
30/2=15
15 (mph)!~
Find the area of the figure.
We will cross a line to seperate the figure into 2 rectangles (i cant draw it but you can base on the solution to find out the line if you dont know)
Area of rectangle 1 : (4+2) x 2 = 12 yd2
Area of rectangle 2 : (12+2) x 2 = 28 yd2
Area of figure = 12 + 28 = 40 yd2.
Answer:
I DON'T NO ABOUT THIS SORRY FOR THE ANSWER
Match each transformation of function f to a feature of the transformed function.
By analyzing the parent function graph, we will see that:
1) m(x) = -f(x) ⇒ "function decreases as x increases"2) h(x) = f(x) + 2 ⇒ "asymptote of y = 2"3) j(x) = f(x + 2) ⇒ "y-intercept at (0, 4)"4) g(x) = 2*f(x) ⇒ "y-intercept at (0, 2)"What thing does each transformation?
Let's list each transformation and let's see which is the correct option for each one.
1) m(x) = -f(x).
This is a reflection over the x-axis, so, now the curve will open downwards. This means that now we have a decreasing function, so the correct option here is: "function decreases as x increases"
2) h(x) = f(x) + 2
This is a vertical translation of 2 units upwards. So it moves the whole graph 2 units upwards. Originally, you can see that in the left side we have an asymptote at y = 0, now that asymptote will be at y = 2.
So the correct option is: "asymptote of y = 2.
3) j(x) = f(x + 2)
This is a shift of 2 units to the left, notice that when we evaluate this in x = 0 we et:
j(0) = f(2) = 2^2 = 4
So the y-intercept os (0, 4).
4) g(x) = 2*f(x)
This is a vertical stretch of scale factor 2.
When we evaluate this in x = 0, we get:
g(0) = 2*f(1) = 2
So the y-intercept is at (0, 2).
If you want to learn more about transformations, you can read:
https://brainly.com/question/4289712
helpp please draw a line segment 8 cm and construct its axis of symmetry
Answer:
.____8cm______^1symmertry
PLEASE HELP ME!!! I WILL GIVE BRAINLIEST!!!!!
It is 3:13 when Lavender gets home from school. She works on her homework, and by the time she finishes math, the clock says that it is 4:37. How much time has passed?
Answer:
84 minutes
Step-by-step explanation:
Lavender has worked:
- from 3:13 to 4. That is 47 minutes, and
- from 4:00 to 4:37. An additional 37 minutes.
Total minutes: (47 + 37) = 84 minutes
============
Also, (84 minutes)(1 hour/60 minutes) = 1.4 hours
find the midpoint of the segment with the given endpoints (3,7) and (-2,-5)
Answer:
-2.5,6.5
Step-by-step explanation:
find A and B please help
Answer: a=124 and b=62
Step-by-step explanation:
Write the equation of the line in Point-Slope form that goes through the point (10,5) and has a slope of -3
Answer: y-5=-3(x-10)
Step-by-step explanation:
Find the length of side
x
x to the nearest tenth.
Answer: 3.5
Step-by-step explanation:
why is 3.3 > 3.2999 please can any explain
Answer:
Step-by-step explanation: its cuz 3.3 is a equal to 3.30000 so 3.2999 would be less than it as it is just becoming smaller and smaller but whilst still staying the same number so 3.3000000=3.3 just like 3.29999999=3.29 all it is, is the repeating function in decimals.
A newly opened juice shop earned a profit of $2,400 in the first month. For the remaining months of the year, the expected profit is modeled by the function J(t) = 2.5t + 1,250, where t is the number of months after the first month the shop opened.
Create a function, P(t), that describes the total profit earned for the entire year.
P (t) =
First month's profit of the company = $2,400.
After the first month, the profit is modeled by the function
J(t) = 2.5t + 1,250, t is the number of months after the first month the shop opened.
Now, P(t) describes the total profit earned by the company.
So, P(t) = (Profit earned from first month) + (Profit earned from remaining 11 months of the year)
= 2400 + (2.5t + 1250)
= 2.5t + 3650
Hence, total profit earned for the year = 2.5t + 3650.
Solve the equation for y.
8x – 9y = 11
A. y = −9/8x − 9/11
B. y = −8x − 11
C. y = 8/9x − 11/9
D. y = 9/8x + 11/8
Step-by-step explanation:
8x - 9y = 11
8x = 9y + 11
8x - 11 = 9y
y = 8x/9 - 11/9
so, C is correct
What is the slope of the line that passes through the points (-8,-6) and (-8, 4)?
Write your answer in simplest form.
Answer:
Slope is undefined
Step-by-step explanation:
To find the slope, subtract the y's and put that on top of a fraction. Then subtract the x's and put that on the bottom of the fraction.
This works all the time for any two points.
Here, though, we find the top
4 - -6
= 4 + 6
= 10
10 would go on top.
But then, on the bottom we get
-8 - -8
= 0
We get zero. As you know, you CANNOT have zero on the bottom of a fraction.
For the slope calculation we get 10/0
The slope is undefined.
Also, if you graph these two points, it's a verticsl line. Vertical lines (up and down) have an undefined slope.
Rewrite the following equation in slope-intercept form.
3x − 11y = 19
Answer:
y = 3/11(x) - 19/11
Step-by-step explanation:
Step 1: Subtract 3x from both sides.
[tex]3x-11y-3x=19-3x[/tex] [tex]-11y=-3x+19[/tex]Step 2: Divide both sides by -11.
[tex]-11y/-11=(-3x+19)/-11[/tex] [tex]y=\frac{3}{11}x-\frac{19}{11}[/tex]Therefore, the answer is y = 3/11(x) - 19/11.
What is the measure of angle J in the triangle below? options
a)99⁰
b)42⁰
c)9⁰
d)48⁰
what's an easy way to turn a fraction into a percent?
Answer:
Step-by-step explanation:
divide the numerator by the denominator (of the fraction). take that answer and multiply it by 100 and that is ur percent
hope that makes sense
~Shoto Todoroki here~
Answer:
1. Use division to convert the fraction to a decimal.2.Multiply by 100 to get percent value.Step-by-step explanation:
hope this helps :D
What values of c and d make the equation true? assume x greater-than 0 and y greater-than-or-equal-to 0 startroot startfraction x superscript 6 baseline y cubed over 9 x superscript 8 baseline endfraction endroot = startfraction 5 y superscript c baseline startroot 2 y endroot over d x endfraction c = 1, d = 3 c = 1, d = 9 c = 2, d = 8 c = 2, d = 9
The values of c and d which makes the provided equation of variable x and y true is 1 and 3 respectively.
What is an unknown variable?Unknown variables are used to find the unknown values of the problem using the algebraic expressions.
The variable x is greater-than 0. Thus,
[tex]x > 0[/tex]
The variable y greater-than-or-equal-to zero. Thus,
[tex]y\geq0[/tex]
The given expression is attached in the image below, which is,
[tex]\sqrt{\dfrac{50x^6y^3}{9x^6}}={\dfrac{5y^c\sqrt{2y}}{dx}}[/tex]
Cancel out x⁶ term and solve it further with
[tex]\sqrt{\dfrac{(25\times2)x^6(y^2\times y)}{(3^2)(x^6\times x^2)}}={\dfrac{5y^c\sqrt{2y}}{dx}}\\\sqrt{\dfrac{(5^2\times2)(y^2\times y)}{(3^2)(x^2)}}={\dfrac{5y^c\sqrt{2y}}{dx}}\\{\dfrac{(5y)\sqrt{(2y)}}{(3x)}}={\dfrac{5y^c\sqrt{2y}}{dx}}[/tex]
Compare both the equation, we get,
[tex]5y=5y^c\\1=c[/tex]
[tex]3x=dx\\3=d[/tex]
Thus, the values of c and d which makes the provided equation of variable x and y true is 1 and 3 respectively.
Learn more about the unknown variable here;
https://brainly.com/question/1235185
OMG PLEASE, I NEED HELP! I am not understanding this topic or what to do. If you know the answer than comment down below :)
in column 1 is the number outside the bracket and the addition or subtraction of the number inside the bracket
first in column 2 you will multiply the number that is outside the bracket
in column 3 that is when I give the number outside the bracket multiply by the number inside the bracket
in column 4 this is when you have finished multiplying the numbers you minus or add them to give ur final answer
column 5 is your final answer :-)
What is the slope of the line represented by the equation f(t)=2t−6?
a
The slope is 2 and the y-intercept is −6.
b
The slope is −6 and the y-intercept is 2.
c
The slope is 2 and the y-intercept is 6.
d
The slope is 6 and the y-intercept is 2.
For a one-tailed test (lower tail) with a sample size of 10 and a .10 level of significance the t value is _____. a. –1.372 b. 1.383 c. –2.821 d. –1.383
Answer:
b 1.383
Step-by-step explanation:
it is a positive number
Which expression is equivalent to 5(2n 1)? 2n 1 2n 5 10n 1 10n 5.
Expression has numbers, variables, and mathematical operations. The expression 5(2n+1) is equivalent to 10n+5.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
As the expression is given to us, therefore, if we expand the expression it can be written as,
[tex]5(2n+1)\\\\=(5 \times 2n)+(5 \times 1)\\\\=10n+5[/tex]
Hence, the expression 5(2n+1) is equivalent to 10n+5.
Learn more about Expression:
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(e) Elena wants to make sure she bought a total of 5 fruits, one for each school day. What would be the combination she should buy?
(f) Let b be the number of bananas and a be the number of apples. Write the equation that
represents: "the number of bananas and the number of apples must add up to 5”
Answer:
10 fruit maybe
explanation:CORRECT ME IF I'M WRONG
Does anyone know the answer to all 4 of these?
Answer:
1. $7.60 2. $3.70 3. $7.20 4. $9.20
Step-by-step explanation:
PLEASE HELP ME THANK YOU
Utilize graphing to find the solution to the following system of equations y = x + 3 AND y = -x + 5 ( [ ? ], [ ] )
Answer:
(1,4)
Step-by-step explanation:
When replacing X and Y with the values (1,4)
[tex]1+3=4[/tex] AND [tex]-1+5=4[/tex]
Therefore, (1,4) is correct
In a restaurant a service charge of 10% is added to the price of the meal. What will be the total bill, when service charge is added, for a meal costing $78?
Answer:
$85.8
Step-by-step explanation:
10% of 78 = 7.8
78 + 7.8 = $85.8
Hence when service charge is added for $78 meal it will be $85.8
Type the correct answer in the box. Use numerals instead of words. Erika and Rita have added a 1-mile walk to their daily exercise schedule. The table lists the time each of them took to walk the 1-mile distance over the past five days. Erika’s Time (in minutes) Rita’s Time (in minutes) 20 21. 25 21. 5 24. 75 22. 75 23 23. 25 23 20. 25 20. 75 On average, it takes Erika about minute(s) per mile less than Rita.
Answer:
The answer is 1.2
Step-by-step explanation:
It takes Rita 22.75 on average, and it take Erika 21.55 to walk the mile on average.
21.55 + 1.2 = 22.75
therefore, it takes Erika 1.2 minutes per mile less than Rita.
On average, Erika is much slower than Rita by 1 minute.
What is Addition?The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.
Since, There are two sets of data: Erika's and Rita's.
Now, we have to find the average values for each of both and compare them.
We would assume that the order of the presentation of data points is alternating,
first for Erika followed by Rita.
Hence, To illustrate what I mean, let's say
in Day 1, Erika's time is 20 and Rita's time is 21.25.
In Day 2, Erika's time is 21.5 and Rita's is 24.75.
And so on and so forth.
So, We get;
Erika's average is,
= (20+21.5+22.75+23.25+20.25)/5
= 21.55
Rita's average is,
= (21.25+24.75+23+23+20.75)/5
= 22.55
Hence, On average, Erika is much slower than Rita by 1 minute.
Learn more about the addition visit:
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The volume of a cuboid is 2160cm3. The length is 12cm and the width is 150mm. Work out the height of the cuboid in cm.
Answer:
12 cm
Step-by-step explanation:
12x15 (150)
2160/180
= 12 cm