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Nataliya [291]
3 years ago
7

I really need help please

Mathematics
2 answers:
dem82 [27]3 years ago
7 0
0.3 for the first one
0.4 for the second


Ahat [919]3 years ago
4 0

Answer:

the first one and the fith one

Step-by-step explanation:

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Factor -2.9 out of 8.7b – 11.6. Using gfc or without
Andreas93 [3]

Answer:

Im losted

Step-by-step explanation:

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3 years ago
Nicky bought 3 bags of flamin hot cheetos for a certain amount of money and a can soda for $1.50. all together he paid $5.25. Ho
krok68 [10]
(5,25-1,5):3
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3 years ago
A book is 6 inches wide and 9 inches tall.
Makovka662 [10]

Answer:

54

Step-by-step explanation:

Leave the 2.5 out

Multiply 9 × 6

So.....9 × 6 = 54

So the area will be 54 of the front of the book after the book is enlarged.

Hope this helps!

4 0
3 years ago
The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.54 minutes and a st
Minchanka [31]

Answer:

0.0323 = 3.23%. Is unusual

Step-by-step explanation:

Using the normal distribution we can find z value with the mean and standard deviation as follows. x is the value we want to know its probability

z = (x - mean)/standard deviation

z = (5-8.54)/1.91

z = -1.85

Using z tables for normal distribution, for z = 1.85, we have an area under the curve of 0.9677. Since we want to know the probability for 5 minutes or less, we have to substract from

p = 1- 0.9677

p = 0.0323

An event with a probability less than 5% is considered unusual.

8 0
3 years ago
A boat goes 3/4 hours with a speed of 8mph and 1/3 hours with a speed of 12mph. What distance did the boat cover in all this tim
Ludmilka [50]

Answer:

<em>10 miles</em>

Step-by-step explanation:

Distance d = v t

v - speed/velocity

t - time

<em>d</em> = \frac{3}{4} (8) + \frac{1}{3} (12) = 6 + 4 = <em>10 miles</em>

4 0
3 years ago
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