2 years ago

Help will mark brainliest no links it trolls. Thx

Mathematics

1 answer:

-BARSIC- [3]2 years ago

6 0

Answer:

the answer to this question is 22ft

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makvit [3.9K]

Answer:

5.81%

Step-by-step explanation:

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2 years ago

Given that the mean of a data set is 25, and the standard deviation is 5, what is the Z-score of 15?

Ber [7]

The answer is negative 2

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2 years ago

If 2x^3=y, then log y equals

Svetllana [295]

Answer:

log 2 + 3 logx

Step-by-step explanation:

log 2x^3

log2+logx^3

log^2+3logx

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2 years ago

Select True or False for each statement.

SSSSS [86.1K]

$\left( \dfrac 1 {64} \right)^{- 5/6} =64^{5/6} = (\sqrt[6]{64})^5 = 2^5 =32$

TRUE

$\sqrt[5]{36^4}=36^{4/5}$

which surely isn't 36. FALSE

$\sqrt{12} - \dfrac 2 5 \sqrt{75} = 2 \sqrt{3} -\dfrac 2 5 (5) \sqrt{3} = 0$

FALSE

For the fourth one we have a

$\sqrt{98b} + \sqrt{2b}$

which isnt

$10\sqrt{b}$

so this is FALSE.

$\dfrac{1}{(\sqrt 5 - \sqrt 6)^2}$

$= \dfrac{1}{(\sqrt 5 - \sqrt 6)^2} \cdot \dfrac{(\sqrt 5 + \sqrt 6)^2}{(\sqrt 5 + \sqrt 6)^2}$

$= \dfrac{(\sqrt 5 + \sqrt 6)^2}{ ( (\sqrt 5 - \sqrt 6)(\sqrt 5 + \sqrt 6))^2}$

$= \dfrac{(\sqrt 5 + \sqrt 6)^2}{( 5-6)^2}$

$=(\sqrt 5 + \sqrt 6)^2$

No fractions in that one so FALSE.

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2 years ago

What is the value of 4x−8(2−x) , when x=−1/4

slava [35]

Answer:

-19

Step-by-step explanation:

4x-8(2-x)

4x-16+8x

12x-16

12(-1/4)-16

-12/4-16

-3-16

-19

3 0

2 years ago

Read 2 more answers