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swat32
3 years ago
10

Solve for X I HAVE THE ANSWER JUST SHOW ME THE WORK AND THATS IT PLS

Mathematics
2 answers:
kolbaska11 [484]3 years ago
6 0

60+60 is 120. subtract 180-120, which leaves you with 60. divide 60 by 5, which 12. x = 12. please mark brainliest and have a good day

Advocard [28]3 years ago
6 0

Answer:

x = 12

Step-by-step explanation:

the sum of inner angles in a triangle is 180

then 180 = 60 + 60 + 5x

after that 5x = 60, x= 12.

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the volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of
FrozenT [24]

Answer:

The new volume is 8 times smaller than the original volume

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-----> the scale factor

x ----> the volume of the reduced sphere

y ----> the volume of the original sphere

so

z^{3}=\frac{x}{y}

we have

z=1/2 ----> scale factor

substitute

(1/2)^{3}=\frac{x}{y}

(1/8)=\frac{x}{y}

x=\frac{y}{8}

therefore

The new volume is 8 times smaller than the original volume

Verify

The volume of the original sphere is

r=18/2=9\ cm ---> the radius is half the diameter

V=\frac{4}{3}\pi (9)^{3}=972\pi \ cm^{3}

the volume of the reduced sphere is

r=9/2=4.5\ cm ---> the radius is half the diameter

V=\frac{4}{3}\pi (4.5)^{3}=121.5\pi \ cm^{3}

Divide the volumes

972\pi \ cm^{3}/121.5\pi \ cm^{3}=8

4 0
3 years ago
A top swimmer would be able to swim across a 25-meter pool in about 1/5
Anni [7]

Answer:

125 m/min

Step-by-step explanation:

Find the rate (speed) as follows:

 25 meters

--------------------- = (125/1) meters/min = 125 m/min

(1/5) minute

This is equivalent to about 380 ft/min

7 0
3 years ago
Write the equation log216 36=36 in logarithmic form
Zielflug [23.3K]
This is impossible and it is not even an equation since \log_{216} 36 = 2/3
3 0
2 years ago
Evaluate the polynomial when a. x = 0 and b. X = - 1.<br><br> x^2 - 8x - 7
jeka57 [31]

Answer:

(a) -7, (b) 2

Step-by-step explanation:

a) When x = 0,

=> x² - 8x - 7

=> (0)² - 8(0) - 7

=> 0 - 0 - 7

=> - 7

b) When x = -1,

=> x² - 8x - 7

=> (-1)² - 8(-1) - 7

=> 1 + 8 - 7

=> 9 - 7

=> 2

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

3 0
2 years ago
-1 1/3 divided by 2 2/5
Crazy boy [7]

Answer:

-5/12

Step-by-step explanation:

-1 times 1 is -1 so -1/3

2 times 2 is 4 so 4/5

-1/3 divided by 4/5

to make it easier we will write like this:

-1/3 times 5/4

-1 times 5=-5

3 times 4=12

so the final answer is  -5/12

HOPE IT HELP U

8 0
3 years ago
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