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3 years ago

Help ASAP please explain

Mathematics

2 answers:

JulijaS [17]3 years ago

6 0

JKL is made of JKQ and QKL. The measures of JKQ and QKL will add up to JKL.

QKL = 140-110 = 30

Anon25 [30]3 years ago

6 0

30 is the answer to your question

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The table represent a liner function What is the slope of the function-6 -4 4 6

Naddika [18.5K]

Take any 2 points the answer will be the same.

For point 2 and 3 : (-4)-(2)/(0)-(-1) = -6

the answer is -6

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3 years ago

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How many 16-ounce bottles would be needed to hold the same total amount of water 56 bottles that each holds 20 ounces

snow_lady [41]

70 bottles will hold 16 ounces amount same as 56 bottles hold 20 ounces.

Step-by-step explanation:

Given,

56 bottles hold 20 ounces each.

Total amount 56 bottles hold= 56x20

Total amount hold by 56 bottles= 1120 ounces

Let the number of 16 ounces bottles be = x

Total amount hold by x bottles = 16x

According to the given statement both amounts are same;

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70 bottles will hold 16 ounces amount same as 56 bottles hold 20 ounces.

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3 years ago

What is the GCF of 42 and 90

ozzi

The answer is 6. hope this helps

8 0

3 years ago

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Given cosα = −3/5, 180 < α < 270, and sinβ = 12/13, 90 < β < 180

torisob [31]

I got

$- \frac{6 3}{65}$

What we know

cos a=-3/5.

sin b=12/13

Angle A interval are between 180 and 270 or third quadrant

Angle B quadrant is between 90 and 180 or second quadrant.

What we need to find

Cos(b)

Cos(a)

What we are going to apply

Sum and Difference Formulas

Basics Sine and Cosines Identies.

1. Let write out the cos(a-b) formula.

$\cos(a - b) = \cos(a) \cos(b) + \sin(a) \sin(b)$

2. Use the interval it gave us.

According to the given, Angle B must between in second quadrant.

Since sin is opposite/hypotenuse and we are given a sin b=12/13. We. are going to set up an equation using the pythagorean theorem.

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$144 + {y}^{2} = 169$

$25 = {y}^{2}$

$y = 5$

so our adjacent side is 5.

Cosine is adjacent/hypotenuse so our cos b=5/13.

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$( - 3) {}^{2} + {x}^{2} = {5}^{2}$

$9 + {x}^{2} = 25$

${x}^{2} = 16$

$x = 4$

so our opposite side is 4. sin =Opposite/Hypotenuse so our sin a =4/5.Sin is negative in the third quadrant so

sin a =-4/5.

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$- \frac{15}{65} + ( - \frac{48}{65} )$

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Hope this helps

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3 years ago

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natali 33 [55]

If she uses the blue book then she will need,

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So she will need 17 more pages if she uses the red book.

Hope this helps :)

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3 years ago