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3 years ago

PLEASE HELP WITH MATH.BEST GETS BRAINLIEST.SHOW WORK STEP BY STEP.

Mathematics

1 answer:

s2008m [1.1K]3 years ago

4 0

Find areas
a=pir^2
d/2=r
2/2=1

pi1^2
pi1
pi
0.10:pi is ration

other cokie
8indiameter
8/2=4
pi4^2
pi16
0.10:pi=x:16pi
obvously mltply 0.10 by 16
1.6

answer is C

squaer pyramid
surfacea rea
made of 1 bottom square and 4 side triangles
areatriangle=1/2bh
b=10
12=h
A=1/2*10*12=60
then times 4 since 4 triangles
60*4=240
areasquare=b^2=10^2=100
100+240=340

answer is A

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PLS HELP ME I WILL MARK THE BRAINLIEST

Serga [27]

Answer:

1. 155 yd², 2. 379.54 ft², 5. x = 65.82π

Step-by-step explanation:

1. A = (1/2) · (3 + 13) · 8

A = (1/2)(16)(8)
A = 64
A = bh
A = 13*7
A = 91
64 + 91 = 155
155 yd²

2. A = bh
A = 25x25
A = 625
A = πr²
A = 3.14*12.5²
A = 3.14*156.25
A = 490.625
490.925/2 = 245.4625
625 - 245.4625 = 379.5375
379.54 ft²

3. and 4. Sorry, I don't know how to solve these

5. A = πr²
A = 3.14*7²
A = 3.14*49
A = 153.86
x/154 = 153.86π/360
360x = 154*153.86π
360x = 23694.44π
x = 65.8178889π
x = 65.82π

Hope this helps :)

7 0

3 years ago

Find a polynomial, which, when added to the polynomial 5x^2–3x–9, is equivalent to:

djyliett [7]

So you need to turn 5x^2 -3x -9 into 2x - 3.

Well first you need to take 5x^2 out by subtracting 5x^2 (-5x^2).

Then -3x needs to become 2x by adding 5x (+5x).

Finally -9 needs to become -3 by adding 6 (+6).

Put all the things you did together to make a polynomial.
-5x^2 + 5x + 6

8 0

3 years ago

When each side of a rectangular prism is doubled, how does the volume of the new rectangular prism compare to the original prism

QveST [7]

I believe the Correct answer is B if I’m right please mark me as brainliest

6 0

3 years ago

Pweasseeee help meh (7th grade math work) will mark as Brainliest :3

dybincka [34]

Answer:

Step-by-step explanation:

this is called a ratio and proportion or similar triangles

31.5 x

do cross multiply:

21 x = 31.5 (35)

x = 1102.5 / 21

x = 52.5 cm

4 0

3 years ago

Charlie gathers apples, pears, and plums. The numbers of apples and plums are 10-partners. There are the same number of apples a

aalyn [17]

Answer:

<u>The total number of pieces of fruit that Charlie can gather ranges from 11 to 19.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Numbers of apples and plums are 10-partners, it means that the sum of apples and plums is 10.

Number of apples and pears are the same.

2. How many pieces of fruit can Charlie gather?

Apples = a

Plums = p

Pears = s

a + p = 10

Possible values of a and p:

1 + 9, 2 + 8, 3 + 7, 4 + 6, 5 + 5, 6 + 4, 7 + 3, 8 + 2, 9 + 1

Possible values of s:

1, 2, 3, 4, 5, 6, 7, 8, or 9

<u>Therefore, the total number of pieces of fruit that Charlie can gather ranges from 11 to 19.</u>

7 0

4 years ago