3 years ago

What equivalent expression was used 3y+4y

Mathematics

2 answers:

Irina18 [472]3 years ago

8 0

Answer:

7y²

Step-by-step explanation:

First u group them like 4+3+y+y=7y²

timama [110]3 years ago

8 0

3y+4y is equivalent to 7yto two

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AVprozaik [17]

Answer:

$\boxed {\boxed {\sf z=2.2}}$

Step-by-step explanation:

The z-score tells us how many standard deviations a value is away from the mean.

The formula is:

$z=\frac{x- \overline{x}}{s}$

where x is the value, $\overline {x}$ is the mean, and s is the standard deviation.

We want to find the z-score for the score of an 83, the mean is 72, and the standard deviation is 5.

$x=83 \\\overline {x}= 72 \\s=5$

Substitute the values into the formula.

$z=\frac{83-72}{5}$

Solve the numerator.

$z=\frac{11}{5}$

Divide.

$z=2.2$

The z-score is 2.2, which means the score of 83 is 2.2 standard deviations above the mean.

3 0

3 years ago

Pls help with this question I don't know the answer. Don't put wrong answers pls.

Lapatulllka [165]

Answer:

-2 I believe. because the 1st exponent would make it 9, and then you'd remove 2

Step-by-step explanation:

I hope this is correct and helpful, I tried my best! <3

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3 years ago

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Natali5045456 [20]

Answer:

Step-by-step explanation:

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2 years ago

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Vedmedyk [2.9K]

13 people are required to do so

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2280 cm2, 2*((24*10)/2)+24*34+10*34+34*26=2280

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3 years ago

What equivalent expression was used 3y+4y​

What equivalent expression was used 3y+4y