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3 years ago

Use the substitution method to solve the system of equations. Choose the correct pair.

Mathematics

1 answer:

dexar [7]3 years ago

8 0

C
-x=-y-10 = x=y+10

x is 10 bigger than y
x+y=12

C

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Type the equation of a line, given a slope of 4 and a y-intercept of 3.

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Answer:

y=4x+3

Step-by-step explanation:

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2 years ago

A cake has a circumference of 25 1/7 inches. What is the area of the cake? Use 22/7 to approximate pi

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To calculate for area given the circumference we proceed as follows:
C=2πr
where:
r=radius
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thus plugging in our formula to solve for r we get:
176/7=2πr
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3 years ago

Kelsey uses the similarity statement ARST - ARUV to describe the triangles below.

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8.0 is the best answer

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2 years ago

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0=4t-16t^2 Solve this please

vaieri [72.5K]

Answer:

$\large\boxed{t=0\ \vee\ t=\dfrac{1}{4}}$

Step-by-step explanation:

$4t-16t^2=0\qquad\text{divide both sides by 4}\\\\\dfrac{4t}{4}-\dfrac{16t^2}{4}=\dfrac{0}{4}\\\\t-4t^2=0\\\\t(1-4t)=0\iff t=0\ \vee\ 1-4t=0\\\\1-4t=0\qquad\text{subtract 1 from both sides}\\\\-4t=-1\qquad\text{divide both sides by (-4)}\\\\t=\dfrac{1}{4}$

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2 years ago

Graph the line that represents a proportional relationship between yyy and xxx where the unit rate of change of yyy with respect

My name is Ann [436]

Answer:

$y=\frac{4}{3}x$

The graph in the attached figure

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m or unit rate of the line and the line passes through the origin

In this problem we have

$k=\frac{4}{3}$

substitute

$y=\frac{4}{3}x$

using a graphing tool

The graph in the attached figure

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3 years ago

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