(6z²+z-1)(9z-5) polynomial equation

Answers

Answer 1

Answer: Hi there, (6z²+z-1)(9z-5)=(6z²+z+-1)(9z+-5)=(6z²)(9z)+(6z²)(-5)+(z)(9z)+(z)(-5)+(-1)(9z)+(-1)(-5)=54z³-30z²+9z²-5z-9z+5=54z³-21z²-14z+5. Therefore, the answer is 54z³-21z²-14z+5.

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Which set of sides would make a right angle
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HELP!!!Find the exact circumference of a circle with the given radius.36 inchesC =A) 72π in.B) 36π in.C) 18π in.

Which expression has a value of 3A. (12 + 6) ÷ (3 + 3)

B. 12 + (6 ÷ 3 + 3)

C. (12 + 6) ÷ 3 + 3

D. 12 + 6 ÷ (3 + 3)

Answers

Answer:

(12 + 6) / (3 + 3) = 18 / 6 = 3

your answer is : (12 + 6) / (3 + 3)

Answer:

Step-by-step explanation:

A) 18/6 = 3

B) 12+5 = 17

C) (18 / 3) + 3 = 9

D) 12 +(6/6) = 13

What is the equation of the line that passes through the points (−2, 3) and (2, 7)?x − y = −1

x − y = −2

x − y = − 5

x − y = − 6

Answers

Hello,

y-3=(7-3)/(2+2)(x+2)==>y-3=x+2==>x-y=-5
Answer C

Explain how to use multiplication to check the answer to a division problem

Answers

When you get the quotient multiply it with the divisor if you get the dividend as the product the answer is correct.

1. A polyhedron has 6 vertices and 9 edges. How many faces does it have? a. 3
b. 5
c. 7
d. 9
2. A polyhedron has 25 faces and 36 edges. How many vertices does it have?
a. 11
b. 12
c. 13
d. 14

Answers

V - number of vertices,
E - number of edges,
F - number of faces:
Euler`s polyhedron formula:
V - E + F = 2
1. F = E - V + 2
F = 9 - 6 + 2 = 5
Answer: A ) 5
2. V = E - F + 2
V = 36 - 25 + 2 = 13
Answer: C ) 13

Answer: 1. B. 2. C. 3. D. 4. A. 5. A.

For the whole practice test :)

HELP! Please! Find The Height.

Answers

The height is 9m, but I'm afraid I can't explain it well enough for you to be able to solve
a similar problem next period.

First of all, I think the drawing is confusing. You have to take control of your eyes
until they recognize that the dotted lines are in the back, and the solid lines are in
the front. Then you see that the bottom triangular face of the prism has a base
of 7 and a height of 1.9 . That makes the area of the base (1/2)(b h) = 6.65 m² .

The volume of the whole prism is (area of the triangular face) x 'H' = 59.85 .

H = 59.85 / 6.65 = 9 m³ .

And the part that's enough to make you really steamed up is: You don't need
those measurements of the top face at all . . . the 3m and 5m on top.

What is the surface area of the triangular prism? A triangular prism. The rectangular sides are 20 feet by 3 feet, 20 feet by 4 feet, and 20 feet by 5 feet.

Answers

Answer:

252 ft²

Step-by-step explanation:

A triangular prism has three rectangles and two triangles, to find the surface area, first find the surface area of thee rectangles and then the surface area of the triangles. After that add all the surface area.

For rectangle 1, surface area = 20 × 3 = 60 ft²

For rectangle 2, surface area = 20 × 4 = 80 ft²

For rectangle 3, surface area = 20 × 5 = 100 ft²

The triangle has height, base and hypotenuse. 5 ft is the hypotenuse and the height and base are 3 ft and 4 ft.

5² = 3² + 4²

For the triangle, the surface area = 1/2 × base × height = 1/2 × 3 × 4 = 6 ft²

Total surface are = 60 + 80 + 100 + 2(6) = 252 ft²

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