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3 years ago

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Question 13(Multiple Choice Worth 1 points) (8.03 LC) A set of equations is given below: Equation C: y = 7x + 12 Equation D: y =

7x + 2 How many solutions are there to the given set of equations? One solution Two solutions Infinitely many solutions No solution

1 answer:

Vlad [161]3 years ago

3 0

Answer: I believe it would be no solution

Step-by-step explanation

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Writing proportions

maxonik [38]

Answer:

I think you would do $9.70 times 2. Afterward, you would divide 9.70 by 5 which gives you 1.94. Finally, you add them together, leaving you with. 11.64. I hope I helped with this.

:D

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3 years ago

Read 2 more answers

One number is 8 times as large as another. Their difference is 21. What is the larger number?

tigry1 [53]

<h3>Answer: 24</h3>

Explanation:

x = smaller number

8x = larger number, since it's 8 times larger than the smaller

8x-x = 7x = difference of the numbers

That difference is 21, so we can say 7x = 21 which solves to x = 3

The smaller number is 3 and the larger is 8x = 8*3 = 24

As a check: 24-3 = 21, which confirms the answer.

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3 years ago

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Find f(x) if it is known that f(x+3)=4x+12.

MArishka [77]

Solution:

we are given that

$f(x+3)=4x+12$

we have been asked to find f(x).

we can find the value of f(x) by re-writing the given function in the form of f(x+3) and thereafter we will replace (x+3) by x.

we can re-write the given function as below

$f(x+3)=4(x+3)\\\\\Rightarrow f(x)=4x\\$

Hence the expression representing f(x) is f(x)=4x+3.

8 0

3 years ago

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What is the axis of symmetry for the equation <br> Y= x^2-3x+8

UNO [17]

Answer:

Step-by-step explanation:

So to find the axis of symmetry, there are two ways, and I will walk you through both.

1. Axis of Symmetry formula

So first, break down the equation and list down a, b, and c, which in this case is 1, -3, and 8. Then, use the Axis of Symmetry formula, which is x=-b/2a.

x=-b/2a

x=-(-3)/2(1)

x=3/2

So, the axis of symmetry is x=3/2.

2. Vertex form

This method requires knowledge of factoring, and understanding completing the square. So, subtract 8 on both sides to get y-8=x^2-3x.

y-8=x^2-3x

Factor out one.

y-8=1(x^2-3x)

Create a Perfect square trinomial

y-8+1(?)=1(x^2-3x+2.25)

Multiply 1 by 2.25 to complete the square

y-8+2.25=(x-1.5)^2

y-5.75=(x-1.5)^2

y=(x-1.5)^2+5.75

Substitute 1.5, because that will find the x value for the vertex, which is the axis of symmetry.

So, the axis of symmetry is 1.5, or 3/2.

Hope that helps!

8 0

4 years ago

What is the answer to -4 and 5 after a dilation with a scale factor of 2

Serga [27]

After dilation by a scale factor of 2 we get the result (-8, 10).

What is the scale factor?

When describing a shape, you must be clear about how much it has been enlarged.

The ratio of two dimensions that causes one figure to be enormous and another to be little is known as the scale factor.

Given coordinate (-4, 5)

If any general coordinate (x, y) is scaled by 2 then we get

X= 2x and Y = 2y

Hence, X= 2 * -4, where x = -4

=> X= -8

and Y= 2 * 5, where y = 5

=> Y = 10

Therefore, the required result is (-8, 10).

To learn more about scale factor from the given link

brainly.com/question/22312172

#SPJ1

4 0

1 year ago