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Maksim231197 [3]
3 years ago
11

I dont know how to do this. I know the answer is -3 but I dont know how I dont understand

Mathematics
1 answer:
monitta3 years ago
6 0

Answer:

2

Step-by-step explanation:

PEMDAS

parenthesis

, exponents,

multiplication,

division,

addition,

subtraction.

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What is the exact volume of the cone with a radius of 7in and a height of 4in use 3.14 for π
vfiekz [6]

Answer:

The exact volume of the cone is \frac{196}{3}\pi\ in^{3}

Step-by-step explanation:

we know that

The volume of the cone is equal to

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

we have

r=7\ in

h=4\ in

substitute the values

V=\frac{1}{3}\pi (7^{2})(4)=\frac{196}{3}\pi\ in^{3}

8 0
3 years ago
Read 2 more answers
I need help pls asap
lilavasa [31]

Answer:

Step-by-step explanation:

first we are told that side and ae and a f are the same

so that means one side of each triangle is the same

next we are told that that the lines coming off of those sides are both right angles. so we know these are both right triangles

and b/c both of those angle are right angles... the sides ab and ac have to also be the same length.. or the angle could not be a right angle

therefore since two sides are the same length then all 3 must be the same lengths

and b/c all three are the same these two triangles are the same .. congruent

6 0
3 years ago
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melomori [17]
8, and 57 I believe am sorry if am wrong I didn’t mean to get it wrong
7 0
2 years ago
(9× 3) = (__x 3) + (__x 3)<br> = __ + ____<br><br> = ___
alekssr [168]

Answer:

(4x3)+(5x3)=12+15=27

Step-by-step explanation:

You can multiple both by any number as long as it adds to nine. 4 plus 5=9.

You can also do 3+6=9, or 8+1=9

5 0
3 years ago
A medium egg has a mass of 50 grams what is the mass of a 8 medium egg
zhuklara [117]

Answer:

400 grams.

Step-by-step explanation:

The mass of one medium egg is 50 grams. To solve for 8 medium eggs. Multiply.

50 * 8 = 400

400 grams.

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2 years ago
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