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Juliette [100K]
3 years ago
11

4x-5+3m-2x ; x=5 and m=7

Mathematics
2 answers:
Viefleur [7K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

deff fn [24]3 years ago
3 0

Answer:

m=7

Step-by-step explanation:

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5 0
3 years ago
A regular pentagon has side lengths of 10 cm and an
Fittoniya [83]

Answer: 172 square centimeters.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Area of a pentagon (A) = 1/2× 5s × a

Where:

s : side of the pentagon

a: apothem

Replacing with the values given and solving for A (area):

A =1/2 x (5 x10) x 6.88

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Feel free to ask for more if needed or if you did not understand something.

7 0
2 years ago
What is the approximate value of x. Enter only a numeric answer rounded to the nearest tenth
11111nata11111 [884]

Answer:

14.9 degrees

Step-by-step explanation:

For this problem you can use Tan∅=o/a and solve for the angle:

15.7 / 59 = 0.2661

Then use inverse tangent of 0.2661 to get 14.9.

7 0
3 years ago
4 less than the product of one and a number z
AleksAgata [21]

Answer:

z - 4

Step-by-step explanation:

Step 1: Convert "4 less"

-4

Step 2: Convert "Product of one and a number z"

1 · z

z

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3 0
3 years ago
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Find the semi perimeter of a triangle with sides 9cm 12 cm and 30 cm
alexgriva [62]

Answer:

<h2>25.5 cm</h2>

Step-by-step explanation:

<h3>s =  \frac{a + b + c}{2}</h3>

=  \frac{9 + 12 + 30}{2}cm \\   = \frac{51}{2}cm  \\ 25.5cm

7 0
3 years ago
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