3 years ago

If there is no solution to a graph of a system of equations, then the lines must be __________.

Mathematics

1 answer:

Viefleur [7K]3 years ago

4 0

Parallel should be your answer!

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You have $85 in your bank account. Each week you plan to deposit $9 from your allowance and $20 from your paycheck. The equation

marta [7]

Answer:

85+29x = 250

-85 -85

29x = 290

x = 10

10 weeks

Step-by-step explanation:

7 0

2 years ago

The linear graph shows the possible combinations of cakes and pies a club must sell to meet their fundraising goal. What is the

AleksandrR [38]

Answer:

$\{x: 0 \le x \le 40 \}$

Step-by-step explanation:

Given

See attachment for graph

Required

The domain of the graph

To do this, we simply write out the range of value of the x-coordinate.

From the attached graph, the x values are:

$x = [0,40]$ i.e. from 0 to 40 (both inclusive)

So, the domain is:

$\{x: 0 \le x \le 40 \}$

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2 years ago

A spherical ball just fits inside a cylindrical can that is 10 centimeters tall, with a diameter of 10 centimeters. Which expres

fgiga [73]

Step-by-step explanation:

Volume:

$volume \: of \: a\: sphere = \frac{4}{3} \pi {r}^{3} \\ = \frac{4}{3} \pi( {5)}^{3}$

3 0

2 years ago

PLEASE HELP! Given the function f(x) = 3x2 − 4, what is f(-2)?

EleoNora [17]

Answer: Variant C

Step-by-step explanation:

f(x) = 3x^2 − 4

For finding f(-2) just replace x with - 2 like this:

f(-2)=3*((-2))^2-4=3*4-4=12-4=8

5 0

3 years ago

How to find the area of a equilateral triangle that has a perimeter of 21?

Romashka-Z-Leto [24]

First, we have to find the length of each side of triangle. Equilateral triangle means 3 sides r in same length, so each side will be 21 ÷ 3 = 7
Now we need to calculate the height of the triangle. We can do this by Pythagoras theorem
Let the height be h
(7/2)^2 + x^2 = 7^2
The area should be 6.0621778265
Or u can say 6.06 corrected to 3 sig fig

8 0

3 years ago