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GuDViN [60]
3 years ago
15

To simplify (5 + 2)^2 + 7 ÷ 7

Mathematics
2 answers:
Sedbober [7]3 years ago
7 0
Parentheses (brackets/braces) are done first according to the order of operations.
Answer A
notka56 [123]3 years ago
6 0

Answer:

A.

Step-by-step explanation:

Parenthesis

Exponents

Division

Multiplication

Addition

Subtraction

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A cylindrical plastic pipe’s length is 12 cm and it’s radius is 2.5 cm. To the nearest tenth, what is the volume of the pipe?
NemiM [27]

Answer:

V = 235.6 cm³

Step-by-step explanation:

the formula for the volume of a cylinder of radius r and length h is

V = πr²h.  

Here, r = 2.5 cm and h = 12 cm, so the volume is:

V = π(2.5 cm)²(12 cm) = 75π cm³

To the nearest tenth, this volume would be V = 235.6 cm³

7 0
3 years ago
Read 2 more answers
ABC has side lenths 20, 24, and 31. Do the side lenghts form a Pythagorean triple?
Brut [27]
No they don't.
Phythagorean triple is when the sum of the squares of two numbers is equal to the square of another number.

20^2 + 24^2 = 400 + 576 = 976
31^2 = 961

20^2 + 24^2 should have been equal to 31^2 but that's not the case. So, the side's length don't form a triple.

Hope it helped!
4 0
3 years ago
A restaurant wishes to have at least one server for every 12 tables. Each of the tables in the restaurant seats four guests. If
Fiesta28 [93]
X = number of servers
y = number of guests

\text {number of guest per table = } 4<span>

</span>\text {number of tables = } \dfrac{y}{4}
<span>
</span>\text {number of servers needed = } \dfrac{y}{4} \div 12<span>

</span>\text {number of servers needed = } \dfrac{y}{4} \times  \dfrac{1}{12}

\text {number of servers needed = } \dfrac{y}{48}

There must be at least 1 server for every 12 tables:
x \geq \dfrac{y}{48}
8 0
3 years ago
What is the value of m? 14 2m=4m-16
gogolik [260]
M=15...................................................................
4 0
3 years ago
Read 2 more answers
Round seven point seven six to one decimal place
masha68 [24]
7.76, when rounded, is 7.8
5 0
3 years ago
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