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expeople1 [14]
3 years ago
14

Which of these expressions is equivalent to z + 2 + 2 + 2? o 4+4 4+ 42 424

Mathematics
2 answers:
Sonbull [250]3 years ago
5 0
4z I think I’m pretty sure tho
VMariaS [17]3 years ago
4 0

Answer:

D

Step-by-step explanation:

when you add a variable it turns into a square

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The length of a rectangle is 8 1/2 inches and the width is 3 1/4 inches. What is the ratio, using whole numbers, of the length t
frosja888 [35]
Short answer 34/13
Start by converting both to improper fractions.

8 1/2 = (2*8 + 1)/2 = 17/2

3 1/4 = (3*4 + 1)/4 = 13/4

Next set up a 4 layer fraction

\dfrac{\dfrac{17}{2}}{\dfrac{13}{4} }

Invert the lower fraction and multiply\dfrac{17}{2}* \dfrac{4}{13}

Cancel the 2 and the 4 leaving you with a 2 in the numerator.\dfrac{17*2}{13} =\dfrac{34}{13} 

5 0
3 years ago
The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. what is the probability that an​ indiv
Usimov [2.4K]
Less than 3 is about 10.75% and greater than 13 is about 6.18%.

To find these percents, you need to find the z-score for each value. Then, use your table to find the correct percent. Be sure to find the side above 13 when you use your chart.

For less than 3:
(3 - 7.45) / 3.6 = -1.24 = The percent below this is 0.1075

For greater than 13:
(13 - 7.45) / 3.6 = 1.54 = The percent above this is 0.0618
7 0
3 years ago
Find the ordered pair to represent a T in the equation t in the equation t=1/2u-v if u=(-1,4) and v=(3,-2)
Lapatulllka [165]

I’m trying to help my granddaughter people

8 0
3 years ago
Read 2 more answers
Express as a trinomial (3x+8) (x+10)
docker41 [41]

Answer:

3x^{2} +38x+80

Step-by-step explanation:

Hello!

A trinomial is a expression consisting of three different terms

To turn this into a trinomial we multiply everything to each other

<u>                     3x                     </u>

3x * x = 3x^{2}

3x * 10 = 30x

<u>                     8                      </u>

8 * x = 8x

8 * 10 = 80

Now we put them all together in an equation

3x^{2} +30x+8x+80

Combine like terms

3x^{2} +38x+80

The answer is 3x^{2} +38x+80

Hope this helps!

7 0
3 years ago
What is the equivalent to 3/20 as a fraction
aalyn [17]
6/40 is equalvilant because all you have to do is double or simplify it by 2
5 0
2 years ago
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