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AlladinOne [14]
3 years ago
7

I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would

appreciate it!

Mathematics
1 answer:
krok68 [10]3 years ago
8 0
Answer: I don’t have my calculator on me but I’ll explain

Step by step: the shape is a cone and a sphere so the volume of a sphere is 4/3 πr^3 but because it’s half a sphere, divide by 2 and the volume of a cone is 1/3h πr^2

Sphere= 4/3 π(10)^3 (plug that in ur calculator) then divide by 2

Cone= 1/3(24) π(10)^2
Then add them together
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Jeffrey calculated the slope between two pairs of points. He found that the slope between -5, 6 and -3, 2 is -2. He also found t
Cerrena [4.2K]

Answer:

Jeffrey is correct

All of these points are on the same line because the slope between (-3,2) and( 0,-4), which are coordinates from each of the pairs above, is equal to -2

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

step 1

Find the slope between -5, 6 and -3, 2

substitute the values in the formula

m=\frac{2-6}{-3+5}

m=\frac{-4}{2}=-2

step 2

Find the slope between (-1, -2) and (0, -4)

substitute the values in the formula

m=\frac{-4+2}{0+1}

m=\frac{-2}{1}=-2

step 3

Find the slope between (-3, 2) and (0, -4)

substitute the values in the formula

m=\frac{-4-2}{0+3}

m=\frac{-6}{3}=-2

therefore

Jeffrey is correct

All of these points are on the same line because the slope between (-3,2) and( 0,-4), which are coordinates from each of the pairs above, is equal to -2

8 0
3 years ago
Read 2 more answers
1. A trapezoid has an area of 91 m2. The height of the trapezoid is 7 m and the measure of one base is twice the height. What is
Lynna [10]
The area of the trapezoid is given by:
 A = (1/2) * (b1 + b2) * (h)
 Where,
 b1, b2: bases of the trapezoid
 h: height
 Substituting values we have:
 91 = (1/2) * ((2 * 7) + b2) * (7)
 Rewriting we have:
 91 = (1/2) * (14 + b2) * (7)
 (2/7) * 91 = 14 + b2
 b2 = (2/7) * 91 - 14
 b2 = 12 m
 Answer:
 
The measure of the other base of the trapezoid is:
 
b2 = 12 m
6 0
3 years ago
Read 2 more answers
(2a-b)2-(a-2b)2 factorial
kvasek [131]

Hello, we know that for a and b real numbers

a^2-b^2=(a-b)(a+b)

So,

(2a-b)^2-(a-2b)^2=(2a-b-a+2b)(2a-b+a-2b)\\\\=(a+b)(3a-3b)\\\\\boxed{=3(a+b)(a-b)}

Thank you.

7 0
3 years ago
Consider the function f(x) = square root of x+3
daser333 [38]

Step-by-step explanation:

f'(x) is usually used in calculus to denote the first derivative of f(x) so f'(2) will simply be the first derivative of f(2).

f(x)=x+3

f'(x)=1

thus x does affect the first derivative and your answer for f'(x)=1

8 0
3 years ago
Find the value of y in the right triangle below.<br><br> A. 40<br> B. 90<br> C. 30<br> D. 50
zhannawk [14.2K]

Answer:

A. 50

Step-by-step explanation:

Sum of interior angles of a triangle is always =180 °

Since this is a right triangle, therefore we know that one angle of the triangle measures 90°

Therefor sum of other two angles has to be =180\°-90\°=90\°

One angle measures = 40°

Therefore the missing angle y=90\°-40\°=50\°

y=50\°

5 0
3 years ago
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