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3 years ago

Plz help me this is a final!!!

Mathematics

1 answer:

Marat540 [252]3 years ago

6 0

Answer: (a) 10 (b) 1. 10 2. -10 (c) 1. 10 2. 10

Step-by-step explanation:

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Helpppp PLZ 20 POINTS!!!!! More then one answer

Vinil7 [7]

Answer:

The first and last one!!

Step-by-step explanation:

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3 years ago

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In a recipe for cookies the ratio of flour to sugar is 3:1 what ratios are equivalent

anyanavicka [17]

Answer:

the ratio is 3 cups of flour to 1 cup of sugar or a 3:1 ratio

Step-by-step explanation:

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3 years ago

Multiply -c^2(3c-2) apply distributive property and multiply

alexandr402 [8]

Answer:

$\large\boxed{-c^2(3c-2)=-3c^3+2c^2}$

Step-by-step explanation:

$-c^2(3c-2)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-c^2)(3c)+(-c^2)(-2)\\\\=-3c^3+2c^2$

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3 years ago

Ryan surveyed parents. He found 3 out of every 5 parents vote. 450 parents eligible. How many parents will vote in the election?

Dafna1 [17]

The answer is 150 parents. Because 450/3=150

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3 years ago

What are the ratios for sin A and cos A? The triangle is not drawn to scale.

dalvyx [7]

Answer:

$SinA = \frac{84}{85}$ and $CosA=\frac{13}{85}$

Step-by-step explanation:

The ratios of sine and cos are defined as follows:

$Sin A = \frac{Opposite}{Hypotenuse}$ , and

$CosA = \frac{Adjacent}{Hypotenuse}$

The hypotenuse is always the side opposite of the 90 degree angle (for the given triangle, the hypotenuse is 85)

Since we are looking at the angle A, the opposite side with respect to A would be the side length of 84. That leaves the side 13 as the adjacent side.

Thus, we can now write:

$Sin A = \frac{Opposite}{Hypotenuse}\\SinA = \frac{84}{85}$

$CosA = \frac{Adjacent}{Hypotenuse}\\CosA=\frac{13}{85}$

The correct answer is the first answer choice.

7 0

3 years ago