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victus00 [196]
3 years ago
8

-4x - 5y = 3 4x+8y=-24

Mathematics
2 answers:
Readme [11.4K]3 years ago
7 0

Answer:

damm this looks hella hard

Step-by-step explanation:

Otrada [13]3 years ago
6 0

Answer:y=-7, x=8

Step-by-step explanation:add two equations together, 4x+-4x and -5y + 8y, and so 3y=-21, and you get y and go on from there, getting the answer.

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(7x+6) + (9x-24) = 180
Tems11 [23]

Answer:

x=99/8

Step-by-step explanation:

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4 years ago
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Will mark brainlist plz anwser
never [62]
The width of the court is 30 feet!
5 0
3 years ago
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Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
IRISSAK [1]

Answer:

30 m

Step-by-step explanation:

Picture the question as a triangle

The length of the string is the hypotenuse, 60 m

The angle from the ground is 30

The right angle C is from the height of the kite to the ground

The missing angle A 60 is located on the top of the kite

now find b, the height

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos(A)=adj/hyp

cos(A)=b/c

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b=60*cos(60)

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3 years ago
What is 96,989,200 written in scientific notation?
Zina [86]
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4 years ago
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Select all side lengths that would form a<br> right triangle.
Nadya [2.5K]

Answer:

option 2 , 3 , 4 , 5

Step-by-step explanation:

Use Pythagorean theorem

hypotenuse² = base² + altitude².

If the lengths satisfies Pythagorean rule, then they form a right angle triangle.

2) 41² = 40² + 9²

1681 = 1600 + 81

1681 = 1681

41, 40 , 9 will form a right angle as it satisfies Pythagorean rule.

3) 15² = 12² + 9²

225 = 144 + 81

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9, 12 , 15 will form a right angle as it satisfies Pythagorean rule.

4) 17² = 15²  + 8 ²

289 = 225 + 64

289 = 289

17, 15 , 8  will form a right angle as it satisfies Pythagorean rule.

5)53² = 28² + 45²

2809 = 784 + 2025

2809 = 2809

53 , 28 , 45 will form a right angle as it satisfies Pythagorean rule.

4 0
3 years ago
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