3 years ago

Help with #4 please thank youu

Mathematics

1 answer:

viva [34]3 years ago

8 0

8+5.5=13.5. She will need 13.5 balls of yarn

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What are the domain and range of the function f(x)= X-7+9?

gizmo_the_mogwai [7]

Answer:

$f(x)=x-7+9 \implies f(x)=x+2$

The domain is all Real number and the range is all Real numbers, as well.

$\text{Domain: }(-\infty, \infty)$

$\text{Range: }(-\infty, \infty)$

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3 years ago

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The standard deviation of a normal random variable x is $20. given that p(x ≤ $10) = 0.1841. from this we can determine that the

attashe74 [19]

Let $\mu$ be the mean of $X$ . Then

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3 years ago

Find the solution(s) for x in the equation below. x2-25=0

AleksandrR [38]

Answer:

x=12.5

Step-by-step explanation:

2x-25=0

Move 25 to the right with addition so you get the 2x by itself:

2x=25

Now divide the 2 to the right to get the x by itself:

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3 years ago

Your coach schedules field hockey practice every day for 45 min. Make a table to show the total number of minutes you practice i

Jobisdone [24]

Answer:

Days l 1 l 2 l 3 l 4 l 5

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3 years ago

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strojnjashka [21]

Answer:

x = 14 and x = - 7

Step-by-step explanation:

Not that + (- ) = -

(a)

x + (- 4) = 10, that is

x - 4 = 10 ( add 4 to both sides )

x = 14

(b)

2x - 10 = - 24 ( add 10 to both sides )

2x = - 14 ( divide both sides by 2 )

x = - 7

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4 years ago