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Ierofanga [76]
3 years ago
5

Please help . I’m giving 75 points.

Mathematics
2 answers:
MaRussiya [10]3 years ago
7 0

Answer:

-9x2- 7z+2

Step-by-step explanation:

4+3z-10z-13+2

-9x^2-7z+2

Monica [59]3 years ago
3 0

Answer:

-9x^{2}-7z+2

Step-by-step explanation:

4x^{2}+3z-10z-13x^{2}+2

-9x^2-7z+2

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You are measuring the height of a statue. You stand 17 feet from the base of the statue. You measure the angle of elevation from
olga_2 [115]

Answer:

height ≈ 31 ft

Step-by-step explanation:

The illustration below will form a right angle triangle. He is standing 17 ft away from the base of the statue.  The angle of elevation from the ground to the top of the statue  is 61°. The height of the statue can be computed below.

adjacent side of the triangle = 17 ft

opposite side = a

Using SOHCAHTOA principle

tan 61° = opposite/adjacent

tan 61° = a/17

cross multiply

a = 17 tan 61°

a = 17 × 1.80404775527

a = 30.6688118396

a ≈ 31 ft

6 0
3 years ago
15xy - 4 + 2xy -7xy - 1​
Eduardwww [97]

Answer:

10xy-5

Step-by-step explanation:

15xy-4+2xy-7xy-1 is the given expression.

I assume the directions say to simplify.

Group the xy terms together and group the constants together.

15xy+2xy-7xy-4-1

This is a demonstration of the commutative property.

Now I will use the distributive property to rewrite the first 3 terms as a multiplication:

(15+2-7)xy-5

10xy-5

6 0
3 years ago
4. The length of Marshall’s rectangular poster is 2 times its width. If the perimeter is 24 inches, what is the area of the post
lubasha [3.4K]
The length is 7 with a width of 5, so the area is 35
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Brums [2.3K]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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