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Eddi Din [679]
2 years ago
13

What is the 21x+63+78

Mathematics
1 answer:
Anna35 [415]2 years ago
5 0

Answer:

x= -6.7

Step-by-step explanation:

21x=-63-78

21x=-141

x= -6.7

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What is the value of x ​
SVEN [57.7K]

Using the pythagorean theorem, the value of x would be eight. The equation of Pythagorean is

a^2 + b^2 = c^2

(C is the hypotenuse. Hypotenuse being the length of 10) Applying the lengths leaves us with the equation

36 + x^2 = 100.

You then subtract 36 from 100 to get X alone on the opposite side of the equation.

X^2 = 64

Lastly, you take the square root of 64. Therefore, the final answer will be eight.

4 0
3 years ago
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Theo has a cubic container. If the height of the container is 6 meters, what is the volume of the container
sattari [20]
Volume of a cube = l^3, where l is the side length (note that the length, width and height in a cube are equal)
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3 years ago
Which expression is equivalent to (4^−3)^−6?<br><br>1. 4^-18<br>2. 4^18<br>3. 4^-9<br>4. 4^3
malfutka [58]

Answer:

4^18

Step-by-step explanation:

4^18 = 2^36

(4^−3)^−6? = 2^36

Please visit: https://youtu.be/_0Ft9HdNg5c

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8 0
3 years ago
Jonathan's age is 1/3 Belinda's age now in 12 years Belinda will be m years old write an algebraic expression to represent Brend
vodomira [7]

Answer:

Kindly check explanation

5 years from now, Johnathan will be (5 + 4) = 9 years

Step-by-step explanation:

Let Belinda's age = x

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Belinda's age now = x

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Belinda's age in 12 years, Belinda's age = m

x + 12 = 36

x = 36 - 12

x = 24 years

Hence Belinda's age now is 24

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Hence, 5 years from now, Johnathan will be (5 + 4) = 9 years

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