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Soloha48 [4]
4 years ago
7

I need help with these problems 16 20

Mathematics
1 answer:
saul85 [17]4 years ago
7 0
False,31+29=60
true,40+8=48
False,17-7=10
True,98-11=87
False,51-8=43
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One cup is equal to 14.4375 in^3. If a 1-cup measuring cylinder has a radius of 3 in., what is its height? If
patriot [66]

Answer:

The height of the cup is 0.51 in.

The height of the cup is 4.59 in.

Step-by-step explanation:

The volume of the cylinder is \pi r^2 h

Given that,

The volume of the cup is 14.4375 in³.

If the measuring cup has a radius of 3 in.

Then,

\pi r^2h=14.4375

Plug r= 3 in.

\pi (3)^2h=14.4375

\Rightarrow h=\frac{14.475}{9\pi }

⇒h=0.51 in.

The height of the cup is 0.51 in.

If it has radius of 1 in.

Then,

\pi r^2h=14.4375

Plug r= 1 in.

\pi (1)^2h=14.4375

\Rightarrow h=\frac{14.475}{1\pi }

⇒h=4.59 in.

The height of the cup is 4.59 in.

3 0
3 years ago
-8=-(x+4) Please Help
Nady [450]

Answer:

<h2>x = 4</h2>

Step-by-step explanation:

In algebra, the goal is always to isolate the variable, so its value can be determined.

<h3>Step 1: Use distributive property</h3>

-8 = -x + -4

<h3>Step 2: Subtract -4</h3>

-4 = -x

<h3>Step 3: Multiply by -1</h3>

4 = x

<h3>Step 4: Check</h3>

-8 = -(4 + 4)

-8 = -8 ✔

<h3>Step 5: Answer</h3>

x = 4

I'm always happy to help :)

5 0
3 years ago
Please help me i really need help
Solnce55 [7]

Answer:

7t +5

Step-by-step explanation:

6t +7 -2 +t

Combine like terms

6t+t  +7-2

7t +5

6 0
3 years ago
Read 2 more answers
Xy + w = 9
Alexandra [31]

xy + w = 9

xy = 9 - w

y = ( 9 - w ) / x


x ( 4 - k ) = p

4 - k = p/x

- k = (p - 4) / x

k = - (p - 4)/x

7 0
3 years ago
May somebody help me please
11Alexandr11 [23.1K]

Answer:

c  is less than or equal to ( - 14/17)

Step-by-step explanation:

the negative is the whole fraction

Im not 100% sure if this is the answer you were looking for or not

6 0
4 years ago
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