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Svet_ta [14]
3 years ago
12

Help and i will give brainiest if you answer them all if random will report.

Mathematics
2 answers:
monitta3 years ago
7 0

Answer:

hello good day

Step-by-step explanation:

thank you for the free points

svet-max [94.6K]3 years ago
5 0

Answer:

○ 1. B

○ 2. 146.25

Add the numbers

○3. (-6w) - 8 + 1 (-7w)

(-6w) -7 + (-7w)

Rearrange

(-6w) + -7 + (-7w)

(-6w) + (-7w) - 7

Solution

(-6w) + (-7w) - 7

○4. In mathematics, a rational number is a number such as −3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Every integer is a rational number: for example, 5 = 5/1

Step-by-step explanation:

Hope it help

Mark me as brainliest

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The scale factor is 3:1 what would y and x be ? Having a hard time trying to figure this out
Ainat [17]
\dfrac{3}{1} =  \dfrac{30}{y}

Cross multiply:
3y = 30

Divide by 3:
y = 10

Answer:  y = 10


\dfrac{3}{1} = \dfrac{x}{8}

Cross multiply:x = 24

Answer: x = 24



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3 years ago
What is 30 minutes from 3:14?
LUCKY_DIMON [66]
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If the ratio from boys to girls is 3:5 and there is a class of 32, how many boys and girls are there?
Colt1911 [192]

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4 years ago
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15. The height and yolume of a cylinder are 4cm and 616cm respectively. Calculate the diameter of the base. (take t = 27 쪽 A. 7c
irakobra [83]

Step-by-step explanation:

Given that,

  • Height of cylinder = 4 cm
  • Volume of cylinder = 616 cm³

To find,

  • Diameter of the base = ?

Firstly we'll find the base radius of the cylinder.

\longmapsto\rm{V_{(Cylinder)} = \pi r^2h}\\

<u>Accordi</u><u>ng</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>qu</u><u>estion</u><u>,</u>

\longmapsto\rm{616= \dfrac{22}{7} \times r^2 \times 4}\\

\longmapsto\rm{616 \times 7 = 22 \times r^2 \times 4}\\

\longmapsto\rm{4312 = 88 \times r^2 }\\

\longmapsto\rm{\cancel{\dfrac{4312}{88}} =  r^2 }\\

\longmapsto\rm{49 =  r^2 }\\

\longmapsto\rm{\sqrt{49} =  r }\\

\longmapsto\rm{7 \; cm =  r }\\

Now,

\longmapsto\rm{Diameter = 2r }\\

\longmapsto\rm{Diameter = 2(7 \; cm) }\\

\longmapsto\bf{Diameter = 14 \; cm}\\

The required answer is 14 cm.

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3 years ago
What's the algebraic expression for n cubed increased by 5??
sertanlavr [38]
N^3+5 is the algebraic expression for it.
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