All categories

2 years ago

X= -7 x+8y=1 solve by substitution

Mathematics

1 answer:

Westkost [7]2 years ago

6 0

$\large\huge\green{\sf{Answer:-}}$

X= -7

x+8y=1

<h3>applying substitution method:-</h3>

x+8y= 1

-7+8y = 1

8y = 1+7

8y = 8

y = 8/8= 1

therefore x= -7 and y= 1

You might be interested in

What are the steps to my answer?

stepan [7]

Answer:

Step-by-step explanation:

f[g(x)]=(2x)²+3(2x)-3...substitute the values of g(x) into the function f(x)
f[g(x)]=4x²+6x-3...simplified

7 0

1 year ago

Express the sum of the polymonial 3x^2+15x-56 and the square of the binomial (x-8) as a polynomial in standard form.

tester [92]

Given:

Polynomial is $3x^2+15x-56$ .

To find:

The sum of given polynomial and the square of the binomial (x-8) as a polynomial in standard form.

Solution:

The sum of given polynomial and the square of the binomial (x-8) is

$3x^2+15x-56+(x-8)^2$

$=3x^2+15x-56+x^2-2(x)(8)+8^2$ $[\because (a-b)^2=a^2-2ab+b^2]$

$=3x^2+15x-56+x^2-16x+64$

On combining like terms, we get

$=(3x^2+x^2)+(15x-16x)+(-56+64)$

$=4x^2-x+8$

Therefore, the sum of given polynomial and the square of the binomial (x-8) as a polynomial in standard form is $4x^2-x+8$ .

7 0

3 years ago

Question 4 of 25

soldi70 [24.7K]

Answer:

D)graph c

Step-by-step explanation:

it's my opinion do not take it as important

7 0

2 years ago

Who could help me solve this?<br><br> Y=log x<br><br> If y=10, then what is x?

Viktor [21]

Step-by-step explanation:

$y = log \: x \\ \\ \therefore \: 10 = log \: x \\ \therefore \: {e}^{10} = x \\ \\ \therefore \: x = {e}^{10} \\$

6 0

3 years ago

An employer may conduct an aptitude test to check for what

AysviL [449]

Your ability to solve problems.
Hope this helps!

7 0

3 years ago

Read 2 more answers