3 years ago

Find the solution to the system of equations.

Mathematics

1 answer:

valentinak56 [21]3 years ago

7 0

Answer:

I am not sure about this question sry but u can try asking a tutor

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Solve x2 – 7x = –13.

aleksklad [387]

we have

$x^{2} -7x=-13$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} -7x+3.5^{2}=-13+3.5^{2}$

$x^{2} -7x+12.25=-13+12.25$

$x^{2} -7x+12.25=-0.75$

Rewrite as perfect squares

$(x-3.5)^{2}=-0.75$

remember that

$i=\sqrt{-1}$

Square root both sides

$(x-3.5)=(+/-)\sqrt{-0.75}$

$(x-3.5)=(+/-)\sqrt{-1*0.75}$

$(x-3.5)=(+/-)\sqrt{0.75}i$

$x1=3.5+\sqrt{0.75}i$

$x2=3.5-\sqrt{0.75}i$

Simplify

$\sqrt{0.75}=\frac{\sqrt{3}}{2}$

$x1=3.5+\frac{\sqrt{3}}{2}i$

$x2=3.5-\frac{\sqrt{3}}{2}i$

therefore

<u>the answer is</u>

$x1=3.5+\frac{\sqrt{3}}{2}i$

$x2=3.5-\frac{\sqrt{3}}{2}i$

6 0

3 years ago

Read 2 more answers

Suppose that 13 inches of wire costs 78 cents.

Fed [463]

Answer:

I believe that the answer is 6 inches

3 0

2 years ago

Find the length indicated.

erica [24]

Option B. 8

7+3 = 10
18-10 = 8

8 0

2 years ago

The veterinarian’s practice had dog and cats clients. The number of dog clients was 5/6 of the number of cat clients. If the tot

enot [183]

Answer:

Dog Clients = 770

Cat Clients = 154

Step-by-step explanation:

1) We are given 5/6 and the number 924. To find the total dog clients, we need to multiply 5/6 by 924 = 770.

2) To find the cat clients, we subtract the dog clients (770) from the total amount of clients, which gives us 154

5 0

2 years ago

What is the slope of the line that passes through (5,4) and (7, 10)?

GrogVix [38]

slope = (y2-y1)/(x2-x1)

m=(10-4)/(7-5)

m =6/2

m=3

Choice A

5 0

3 years ago