3 years ago

Write an inequality to represent each statement. #10 please

Mathematics

1 answer:

DerKrebs [107]3 years ago

5 0

K +1 < or = -2

At means less than or equal to. It cannot be more than -2

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4 hours worked for $12; 7 hours worked for $28l

777dan777 [17]

Answer:

$293.00

Step-by-step explanation:

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3 years ago

What is 3/5 equivalent to

REY [17]

Multiply both the numerator and the denominator by the same number and you'll get an equivalent fraction. For example, 3/5 times 2/2 equals 6/10, which is an equivalent fraction to 3/5. Multiply both by 8, and you have 24/40, which is also equivalent to 3/5. I hope this helped you tremendously! <span />

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3 years ago

Simplify the following polynomial and write the answer in standard form. (-2x^3+5x^2-4x+8)-(-2x^3+2x-3)

Masja [62]

$(-2x^3+5x^2-4x+8)-(-2x^3+2x-3)\\\\=-2x^3+5x^2-4x+8-(-2x^3)-2x-(-3)\\\\=-2x^3+5x^2-4x+8+2x^3-2x+3\\\\=(-2x^3+2x^3)+5x^2+(-4x-2x)+(8+3)\\\\=5x^2-6x+11$

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3 years ago

A boy walks 6 km from a point P to a point Q on a bearing of 065. He then walks to a point R at a distance of 13 km on a bearing

Usimov [2.4K]

9514 1404 393

Answer:

see below for a sketch
12 km

Step-by-step explanation:

The distance can be calculated using the Law of Cosines. The angle internal to the triangle at Q is (180°-(146° -65°)) = 99°. Then the distance PR can be found from ...

PR² = PQ² +QR² -2·PQ·QR·cos(∠PQR)

PR² = 6² +10² -2·6·10·cos(99°) ≈ 154.77

PR ≈ √154.77 ≈ 12.44 . . . . km

The distance PR is about 12 km.

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3 years ago

The cosine of the complimentary angle to 58 degrees

lana [24]

Yes
Divide it by sixty and multiply
I hope this helps

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3 years ago