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Rina8888 [55]
2 years ago
11

Which word phrase represents the numerical expression below? * 4+(27-10)

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
6 0

Answer:

4 plus the difference of 27 and 10

Step-by-step explanation:

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PLEASE HELP LATS MATH PROBLEM <br> A, B and C
Llana [10]

Answer:

a) Set up triangles where the hypotenuse is 16ft (the ladder) and one of the two edges are 1, 2, 3, 4, 5ft (the base of the ladder).  Use a^2 + b^2 = c^2 where a is the base length, c is the hypotenuse and b is the value you are trying to find.

Ex w/ 1ft base:

1^2 + b^2 = 16^2

1 + b^2 = 256

b^2 = 255

b = 15.97ft.

b) Simply take your answers from part a) and add 5.5ft (the height of the girl) to them.

Ex w/ 1ft base:

15.97ft + 5.5ft = 21.47ft

c) Using logic here think about it.  Let's take the 1ft base as the example.  Marissa standing on top of the ladder is 21.47ft.  That's clearly not high enough to reach the cat . . . but what happens if Marissa reaches upwards.  As long as her arms can reach roughly 1.53ft above her head she should be able to reach it.

Step-by-step explanation:

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8 0
3 years ago
If 89 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would di
cricket20 [7]

Answer:

0.6836

Step-by-step explanation:

(weight - mean weight) = 48

Variance, s² = 204,304

Sample size, n = 89

We need to obtain the Zscore :

Zscore = (X - mean) / standard Error

Zscore = (weight - mean weight ) / (s/√n)

s = √204304 = 452

The difference from the meanncoukdnbe either to the right or left :

Zscore = - 48 / (452/√89) OR 48 / (452/√89)

Zscore = - 48 / 47.911904 OR - 48 / 47.911904

Zscore = - 1.002 or 1.002

P(Z < - 1.002) = 0.1582 (using Z table)

P(Z < 1.002) = 0.8418

P(Z < 1.002) - P(Z < - 1.002)

0.8418 - 0.1582

= 0.6836

6 0
3 years ago
Which decimal number is 17/21 equal to?
exis [7]

It is equal to 0.8 five star please?

8 0
3 years ago
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A car traveled 3⁄4 mile in one minute at constant speed. What was the speed of the car in miles per hour?
Dmitry [639]
3/4 mile is 0.75 mile per minute
There are 60 minutes in one hour
0.75 times 60 equals 45 miles
4 0
3 years ago
How to solve inequalities
sertanlavr [38]
Add or subtract numbers from both sides
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3 years ago
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