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2 years ago

Please help me with My algebra. I'm stressing a lot right now so Thank you.

Mathematics

1 answer:

Mariulka [41]2 years ago

8 0

Hello! These worksheets are online! Just look up the title and it should come up if not just repost the picture fully and I’ll look it up for you!

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Would someone help me understand this type of math

Svetlanka [38]

I never understand that

6 0

2 years ago

F(-1) f(x) = -3x2 + 2x - 7

egoroff_w [7]

Answer:

$f(-1) = -12$

Step-by-step explanation:

<u>Step 1: Set x to -1 and solve</u>

<u /> $f(x) = -3x^2+2x-7$

$f(-1) = -3(-1)^2+2(-1) - 7$

$f(-1) = -3(1) - 2 - 7$

$f(-1) = -3 - 2 - 7$

$f(-1) = -12$

Answer: $f(-1) = -12$

3 0

2 years ago

Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy

bixtya [17]

Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

$V=\pi r^2h$

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let $h_1$ be the height of the cone.

-The area of a cone is calculated as;

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1$

The volume of the solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

$V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)$

Hence, the approximate area of the solid portion is $3.14r^2(h-\frac{1}{3}h_1)$

5 0

3 years ago

What is 5/6 - blank equal 1/2

mel-nik [20]

Answer:

1/3

Step-by-step explanation:

5/6-x=1/2

x=5/6-1/2

x=5/6-3/6

x=2/6

simplify

x=1/3

8 0

3 years ago

Read 2 more answers

A researcher gathers a sample of n=89 people to try a new

muminat

Answer:

Step-by-step explanation:

+#;$;_;_:;+$hshshsbbsns

5 0

2 years ago