2 years ago

How many solutions does the system have? y = -7x + 8 y = -7x - 8 Choose 1 answer:

Mathematics

1 answer:

Verdich [7]2 years ago

7 0

Answer:

No solutions

Step-by-step explanation:

If we try to solve this system for y at x = 1, we get an impossible situation:

$y=-7(1)+8=-7+8=1\\y=-7(1)-8=-7-8=-15\\1=-15$

Clearly, 1 ≠ -15, and we'll see that any value of x that we pick gives us two contradictory values for y, so this system has no solutions.

You might be interested in

Find the value of the combination. 21 C 3 7,980 2,660 1,330

erik [133]

To evaluate the combination we proceed as follows:
21C3
Given nCk we shall have:
n!/[(n-k)!k!]
thus plugging the values in the expression we get:
21!/[(21-3)!3!]
=21!/(18!×3!)
=1330
Answer: 1330

4 0

3 years ago

Cora’s kitten weighs 1,200 grams. If he weighed 550 grams at the last visit to the veterinarian’s office, what is the percent in

Neporo4naja [7]

percent increase = (new -original)/original

= (1200-550)/550

650/550

=1 100/550

1 2/11

1.181818

118.18 percent

to the nearest whole number

118 %

8 0

3 years ago

Points B and D are points of tangency. Find the value of x.

nika2105 [10]

Answer:

Step-by-step explanation:

5x-8=2x+7

3x=15

x=5

5 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%7B%28%20%5Cfrac%7B5%7D%7B3%7D%20%29%7D%5E%7B2n%20%2B%201%7D%20%20%7B%28%20%5Cfrac%7B5%7D%7

Alisiya [41]

Answer:

n = -4

Step-by-step explanation:

$(\frac{5}{3} )^2^n^+^1 * (\frac{5}{3} )^5 = (\frac{5}{3})^n^+^2$

in multiplication if the base are same u can add there exponent.

$(\frac{5}{3})^2^n^+^1^+^5 = (\frac{5}{3})^n^+^2$

base of both sides are equal so their exponent will be equal

2n + 1 + 5 = n + 2

2n + 6 = n + 2

2n - n = 2 - 6

n = -4

5 0

2 years ago

A gardener makes a new circular flower bed. The bed is twelve feet in diameter. Calculate the circumference and the area of the

Eduardwww [97]

37.7 is the circumference, 113.1 is the area, use a calculator for more in depth looks.

5 0

3 years ago