2 years ago

HELP PLEASE ASAP I REALLY NEED HELP

Mathematics

1 answer:

Sergeu [11.5K]2 years ago

4 0

The answer is 24. You subtract 40 - 16.

You might be interested in

Which choices are solutions to the following equation? Check all that apply. x2 -5x = 4

EastWind [94]

Answer:

The answer and steps are in the picture below

Step-by-step explanation:

7 0

1 year ago

5(x+7)+2(y-1)when x=7 and y=2

balu736 [363]

Answer: 72

Step-by-step explanation:

First plug in 7 for x

5(14)

Then multiply

Next plug 2 in for y

2(1)

Multiply

Lastly, add 70 and 2 together.

72.

Hope this helps.

5 0

2 years ago

Read 2 more answers

If ?2000 is placed into a bank account that pays 3% compound interest per year,how much will be in the account after 2 years?

Ipatiy [6.2K]

Answer:

There would be $2,120

Step-by-step explanation:

First figure out what 3% of 2000 is which is 60. Multiply the 60 by 2 to get 120 then add 120 to 2000

3 0

2 years ago

Read 2 more answers

Michele correctly solved a quadratic equation using the quadratic formula as shown below.

ra1l [238]

Whats the answers it doesn’t show for me

8 0

2 years ago

A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to m

Wewaii [24]

Answer:

See explanation below

Step-by-step explanation:

range = 2200 - 300 = 1900

To find standard deviation, we have:

standard deviation = range/4 = $\frac{1900}{4}$ = 475

The range rule of thumb estimate for the standard deviation is 475

Given:

Standard deviation, $\sigma$ = 475

Margin of Error, ME = 100

$\alpha$ = 1 - 0.90 = 0.10

Za/2 = Z0.05 = 1.64

Find sample size, n:

n ≥ $[Z_\alpha_/_2 * (\frac{\sigma}{ME})]^2$

n ≥ $[1.64 * (\frac{475}{100})]^2$

n ≥ 60.68

≈ 61

Minimun sample size,n = 61

5 0

2 years ago