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3 years ago

Simplify the expression by combining like terms :

1 answer:

8 0

Here is your answer:

2b + 7b^2 - 2 + 3b - 1 + b
Combine 2b and 3b
2b+3b=5b
Then do the exponent rule:
7×7=49b
Which equals:

(5b) b^2 + ( 2 ) b + (4b)

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How do you turn 3/5 to a decimal

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Step-by-step explanation:

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3 years ago

yuradex [85]

Answer:

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Step-by-step explanation:

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3 years ago

Find the z score that cuts-off the largest 9% under the standard normal curve. a) -1.34 b) 1.34 c) 0.536 d) 1.28

topjm [15]

Answer:

b) 1.34

Step-by-step explanation:

The z score is used to determine the number of standard deviations by which the raw score is above or below the mean. If the z score is positive then the z score is above the mean while for a negative z score implies that it is below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma}$

For the largest 9%, the score is 100% - 9% = 91% = 0.91

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2 years ago

A florist normally takes 20 hours to assemble 10 flower arrangements how long do it takes to do one flower arrangement

Mariana [72]

20/10= 2

All you need to do is divide the number of hours it takes by the number of flower arrangments. So, it takes the florist 2 hours to assemble one flower arrangement.

I hope this helps!
~kaikers

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2 years ago

Help me..........................

FrozenT [24]

Answer:

Below

Step-by-step explanation:

To find the rate we have to divide

2/3=.67

then we can multiply all the numbers by .67

1=.67

2=1.34

5=3.35

10=6.7

Desmos is hard sometimes :)

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2 years ago

Read 2 more answers