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rewona [7]
3 years ago
9

In the expression 4y - 7, evaluate the expression when y = 3

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Equation is below

Step 1

4y-7  evaluating

Step 2

4y-7  Substitute y for 3

(4)(3)-7

Step 3

(4)(3)-7  Now simplify

12-7

5

Answer

5

Hope this helps

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Factor the expression below.
Genrish500 [490]

Answer:

A. (6x + 7)(6x - 7)

Step-by-step explanation:

use difference of squares, which says a^2 - b^2 =(a+b)(a-b)

take the square roots of the two numbers, 6x and 7, and use them as a and b

8 0
2 years ago
PLEASE HELP ME ON THIS AND SHOW UR WORK<br> THX
swat32
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4 0
3 years ago
1.What is the cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron?
stiks02 [169]

1. Answer;

- Triangle

Explanation;

The cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron is a Triangle.

A tetrahedron also a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.

2. Answers

- Triangle

Explanation;

The cross section formed by a plane that intersects three faces of a cube is a Triangle. A cross section is the shape we get when cutting straight through an object. The shape of the cross-section of a solid depends upon the orientation of the cutting plane to the solid.

7 0
3 years ago
Read 2 more answers
Determine if it’s a function or not explain why
DiKsa [7]
8. It is a function, the x’s do not repeat
9. It is not a function, -3 is listed twice
4 0
3 years ago
Which inequality defines the shaded region graphed below?
masha68 [24]

Answer:

Every ordered pair within this region will satisfy the inequality y ≥ x. Incorrect. The boundary line here is y = x, and the correct region is shaded, but remember that a dotted line is used for < and >. The inequality you are graphing is y ≥ x, so the boundary line should be solid.

7 0
2 years ago
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