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lidiya [134]
3 years ago
14

I need help on my math!!!!!!!

Mathematics
1 answer:
Evgen [1.6K]3 years ago
7 0

Answer:

I think its B

Step-by-step explanation:

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To increase an amount by 3%, what <br> single multiplier would you use?
Yuki888 [10]
The right multiplier is 1.03. Because x*1.03=x*(1+.03)=x+.03x
And .03x is exactly  3% of x.
5 0
3 years ago
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4d = 30 the answer would be c=7.5 right if not plz correct me if im wrong
SashulF [63]

Answer:

Correct!

Step-by-step explanation:

You did it the correct mathematical way, where you divide 4 by 30. Some people get confused and multiply 30 and 4, so good job!

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3 years ago
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Find the total surface area of this cone, leaving your answer in terms of pi
salantis [7]

Answer:

Surface area = 70π cm²

Step-by-step explanation:

Surface area = πr² + πrl

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6 0
2 years ago
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M/
satela [25.4K]
<h3>Answer:  C) 2.47 cm</h3>

=====================================================

Explanation:

We have 81 cm^3 of clay. Divide this among the 20 students and each gets 81/20 = 4.05 cm^3 of clay

--------------

The volume of a cone is

V = (1/3)*pi*r^2*h

Solving for h gets us

3V = pi*r^2*h

(3V)/(pi*r^2) = h

h = (3V)/(pi*r^2)

--------------

The diameter is 2.5 cm which cuts in half to 1.25 cm, so this is the radius.

We'll plug this radius in, along with V = 4.05 and pi = 3.14

h = (3V)/(pi*r^2)

h = (3*4.05)/(3.14*(1.25)^2)

h = 2.4764

This value is approximate. Rounding down to the nearest hundredth gets us 2.47

We round down because rounding up to 2.48 will lead to a volume larger than 4.05

7 0
3 years ago
A(n) ______ line is a line that relates points on the line with numbers.
Oliga [24]

ans: number line

Step-by-step explanation:

the ans is number

7 0
3 years ago
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