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Harrizon [31]
4 years ago
10

5x +7 y=-17 4x – 3y = -5 Substitute.

Mathematics
1 answer:
Bond [772]4 years ago
5 0

Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

x=-\frac{5}{4} + \frac{3}{4}y

We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

y=-1 *Substitute the value of "y"

x= --\frac{5}{4}+\frac{3}{4}x(-1)

x=-2

\left \{ {{-17=-17} \atop {-5=-5}} \right. This works.

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6 = -4 + X<br><br><br> Random Question: What's your favorite subject
Inga [223]

Answer:

x=10             US HISTORY :)

Step-by-step explanation:

6=-4 +X

+4  +4

X=10

6 0
3 years ago
Solve for x. 2 1/2x−3/4(2x+5)=3/8<br><br> Please hurry
Fofino [41]

Answer:

x= - 1.48 or 0.48

Step-by-step explanation:

I used general formula. Hope I'm on a right path.

8 0
3 years ago
One factor of f (x ) = 4 x cubed minus 4 x squared minus 16 x 16 is (x – 2). what are all the roots of the function? use the rem
Rainbow [258]

The factor of the function will be (x - 1), (x - 2), and (x + 2). Then the roots of the function will be 1, 2, and negative 2.

<h3>What is a factorization?</h3>

It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.

The function is given below.

f(x) = 4x³ - 4x² - 16x + 16

Then the factor of the function will be

f(x) = 4x²(x - 1) - 16(x - 1)

f(x) = 4(x - 1) (x² - 4)

f(x) = 4(x - 1) (x² - 2²)

f(x) = 4(x - 1)(x - 2)(x + 2)

Then the roots of the function will be

x = 1, 2, -2

More about the factorization link is given below.

brainly.com/question/6810544

#SPJ1

4 0
2 years ago
What is the value of the expression 3^2(2^3+4)/2^2?
Step2247 [10]

Answer:

27

Step-by-step explanation:

7 0
3 years ago
Which of the following are parallel to
Bond [772]
Y = 3x
y = 3x - 1
y = 3x - 4

i’m pretty sure in order for lines to be parallel, they have to have the same slope but different y- intercepts
7 0
3 years ago
Read 2 more answers
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