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Molodets [167]
3 years ago
10

Factor the expressions 7 – 42

Mathematics
1 answer:
Alja [10]3 years ago
6 0

Answer:

7 (1-6)

Step-by-step explanation:

you find the greatest common factor of 7 and 42.

<u>7</u>

7x1

<u>42 </u>

1x42

2x21

3x14

6x7

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The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean
Marizza181 [45]

Answer:

56 meters.

Step-by-step explanation:

Please find the attachment.

Let the leaning tower's be h meters tall, when it was originally built.

We can see from our attachment that the side with length 55.86 meters is hypotenuse and h is adjacent side for 4 degree angle.

Since we know that cosine relates the adjacent and hypotenuse of a right triangle.

\text{Cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}

Upon substituting our given values we will get,

\text{Cos (4)}=\frac{55.86}{h}

h=\frac{55.86}{\text{Cos (4)}}

h=\frac{55.86}{0.99756405026}

h=55.996\approx 56                      

Therefore, the leaning tower was approximately 56 meters, when it was originally built.

6 0
3 years ago
If 5(3x-7)=20, then what is 6x-8 ?
Colt1911 [192]
First solve for x in the first equation. So you'll have to substitute,
5(3x-7)=20
15x-35=20
Then add 35 to both sides.
15x=55
Divide 55 by 15.
So x = 3.66...
Then plug in 3.7 for x in 6x-8
6(3.7)-8
Its approximately 14.2
3 0
3 years ago
How to write 0.997 as a fraction?
cluponka [151]
997/1000, or just round it to 1. <em>If I helped click thanks please  (:</em>
6 0
4 years ago
Read 2 more answers
Need help pls pls!!!!!!
Artyom0805 [142]

Answer:

2916 ft³

Step-by-step explanation:

•the diameter of the sphere is 18 ft , to find the radius(r) you have to divide it by 2 ,

•which gives 9ft .

•And they also told you to take the value of pie as 3.

•So, substitute the values into the formula given for V and you will have your answer.

Hope I was able to help:))

4 0
3 years ago
What is the value of 30-(-45) ?
zlopas [31]
<h2>Answer:</h2>

<h3>75</h3>

<h2>Step-by-step explanation:</h2>

30 - ( - 45) \\  \\ 30 + 45 \\  \\ 75

<h2>Hope it help you </h2>

<h2>Mark me as a brain list </h2>
6 0
3 years ago
Read 2 more answers
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