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4 years ago

What is the value of x if 8:15 ::16x

Mathematics

1 answer:

Nana76 [90]4 years ago

8 0

Step-by-step explanation:

8:15::16:x

8x = 15 x 16

8x = 240

x = 240/8

x = 30

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For an equation with no solution the values

Ugo [173]

Answer:

Step-by-step explanation:

7 0

3 years ago

Calculate the volume of the composite shape please please help giving brainliest!!

Ilya [14]

${\qquad\qquad\huge\underline{{\sf Answer}}}$

There are two hemispheres in there with radius 3 cm, so we can consider it as a whole one. and the other shape in between is Cylinder with radius 3 cm and height 4 cm.

Volume of whole ahape = volume of Cylinder + volume of sphere ~

Volume of sphere :

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \pi {r}^{3}$

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \sdot3.14 \sdot {(3)}^{3}$

$\qquad \sf \dashrightarrow \: (4 )\sdot(3.14) \sdot(9)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of Cylinder :

$\qquad \sf \dashrightarrow \: \pi {r}^{2} h$

$\qquad \sf \dashrightarrow \: 3.14 \cdot(3) {}^{2} \sdot4$

$\qquad \sf \dashrightarrow \: 3.14 \sdot(9) \sdot(4)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of whole shape :

$\qquad \sf \dashrightarrow \: 113.04 + 113.04 = 226.08 \: \: cm {}^{3}$

$\qquad \sf \dashrightarrow \: 226.08 \: \: cm {}^{3}$

8 0

2 years ago

Answer correctly pls

klio [65]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

I need help on these questions

Kay [80]

1.) 10c - 12 = -2
-2C is the temperature in Tallahassee

2.) 48 kilometers divided the average of 3.2 Km
48÷3.2=15
15 is the value of D

3.) You seem to have 3 =D

4.) I'm pretty sure you just add $\frac{1}{4} + \frac{1}{3} = \frac{7}{12}$
7/12 is your answer

----------------------------------------------------------------------------------------------------------------
Thank You! Have a great day =D
and please correct me if wrong =D

7 0

3 years ago

A statue is mounted on top of a 42 foot hill. From the base of the hill to where you are standing is 73 feet and the statue subt

larisa [96]

Answer:

19.72 ft

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relation between angles and sides of a right triangle:

Tan = Opposite/Adjacent

Then the relations in the attached drawing are ...

tan(α) = 42/73

tan(α +10.3°) = (42 +SH)/73

Solving the first equation for α, we get ...

α = arctan(42/73)

Solving the second equation for SH, we get ...

73 tan(α +10.3°) = 42 +SH

SH = 73·tan(arctan(42/73) +10.3°) -42 = 73·tan(29.91°+10.3°) -42

SH = 73·0.84547 -42 = 19.720 . . . . feet

The height of the statue is about 19.72 feet.

_____

For more, see brainly.com/question/13065709

3 0

3 years ago