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3 years ago

Please help!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

ozzi3 years ago

5 0

Move all terms not containing a to the right side of the equation.
a=129/64

I hope this helps :)

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Help asap ?????? pls help me with question 7

fiasKO [112]

Answer:

the mean is 5

Step-by-step explanation:

8 0

3 years ago

Please answer the question in the picture

Len [333]

Reorder terms so constants are on the left

(3x + 7) 8x^2
8(3x +7)x^2

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Answer: 24x^3+56x^2

6 0

3 years ago

Find the inverse of y=5x+3

seraphim [82]

Answer:

$f^{-1}$ (x) = $\frac{x-3}{5}$

Step-by-step explanation:

Rearrange the equation making x the subject

y = 5x + 3 ( subtract 3 from both sides )

y - 3 = 5x ( divide both sides by 5 )

$\frac{y-3}{5}$ = x

Change y to x then

$f^{-1}$ (x) = $\frac{x-3}{5}$

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3 years ago

Solve for x= ax2 + b = c

alekssr [168]

Answer:

x = ± $\sqrt{\frac{c-b}{a} }$

Step-by-step explanation:

Given

ax² + b = c ( subtract b from both sides )

ax² = c - b ( divide both sides by a )

x² = $\frac{c-b}{a}$ ( take the square root of both sides )

x = ± $\sqrt{\frac{c-b}{a} }$

3 0

3 years ago

A coin is tossed 4 times. Find the probability of getting at 4 tails in a row.

7nadin3 [17]

Answer:

6.25%

Step-by-step explanation:

Each time you flip a coin, there is a 50% probability of it landing on tails. Each time you flip the coin, the 50% gets multiplied by $\frac{1}{2}$ .

$\frac{1}{2}$ to the power of <em>4 </em>is 0.0625. 0.0625 in percentage form is of course 6.25%

4 0

3 years ago