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3 years ago

5

Please explain I need help with all these

1 answer:

sergey [27]3 years ago

3 0

For all of these you're trying to solve for the variable. The variable is usually a number or symbol.

11) -44+n=36
Step one would be to add 44 to both sides of the equation.

N=80

12) -36=p-91
Step one would be to add -91 to both sides of the equation.

P=55

13) X-225=671
Step one you be to add 225 to both sides of the equation. Although it may seem difficult because of the big numbers, it's the same technique.

14) 19=c-(-12)
Step one on this equation will be a little different. Because there are two negative signs (-), they turn into a plus sign. Remember, two negative signs make a positive sign.

19=c+12

Now you just subtract 12 from each side of the equation.

6=C

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Mean birthweight is studied because low birthweight is an indicator of infant mortality. A study of babies in Norway published i

ANEK [815]

Answer: 20

Step-by-step explanation:

Formula to find the minimum sample size(n) when prior population standard deviation $(\sigma)$ is known.

$n=(\dfrac{z^c\times\sigma}{E})^2$ , where E = Margin of error , $z^c$ = Critical z-value for c confidence interval.

Given : E = 225 g , $\sigma=600$ g

Critical z value for 90% confidence = 1.645

Now, $n=(\dfrac{1.645\times600}{225})^2$

$n=(\dfrac{987}{225})^2$

$n=(4.38666666667)^2=19.2428444\approx20$

Hence, the required minimum sample size = 20

7 0

3 years ago

if you vertically compress the absolute value parent function f(x)=|x| by a factor of 3 what is the equation of the new function

Sphinxa [80]

Answer:

The equation for new function is $y=\frac{1}{3}|x|$

Step-by-step explanation:

We have been given the absolute value parent function f(x) = |x| and this function is vertically compressed by a factor 3.

If we multiply the function with a constant (say a) then the parent function will get stretch/compressed vertically.

We have below conditions for vertical stretch and compression.

a > 1 => vertically stretch

0 < a < 1 => vertically compression

Hence, in order to vertical compression by a factor 3, we have to multiply the whole function by 1/3

Therefore, the equation for new function is $y=\frac{1}{3}|x|$

5 0

4 years ago

PLEASE HELP HURRY!<br> PICTURE SHOWN!<br><br> Net Force: <br><br> Net Force Direction:

azamat

Answer:

see the attachment and Mark as brainleist please

7 0

3 years ago

Tresset [83]

Answer:

A) 4x + 3 = 35

Step-by-step explanation:

x = represents the number of friends he gave 4 pieces of candy to leading to 4x

Since he has three pieces that means you would add 3

Therefore, 35, the total pieces of candy , is what 4x+3 would equal to.

4 0

3 years ago

Read 2 more answers

Which expressions are equivalent to 1/36? check all that apply a) 3^-6 b)6^-2 c) 6^3/6^5 d)6^2/ 6^-1 e) 6×6^-2 f) 6^-9×6^7

Ksenya-84 [330]

Answer:

B)6^-2

Because

6^-2

1/6²

1/36

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers