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3 years ago

Which ratio is proportional to 10/24 A 20/36 B 5/8 C 35/84 D 5/6

Mathematics

1 answer:

7nadin3 [17]3 years ago

5 0

Answer:

C 35/84

Step-by-step explanation:

The given ratio is less than 1/2. Only one answer choice is less than 1/2: 35/84.

The given ratio reduces to 5/12. The reduced ratios of the answer choices are ...

A 5/9

B 5/8

C 5/12 . . . . your answer

D 5/6

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Answer: The value of cos theta is -0.352.

Step-by-step explanation:

Since we have given that

$\vec{u}=1\hat{i}+2\hat{j}-2\hat{k}\and\\\\\vec{w}=\hat{j}+4\hat{k}$

We need to find the cos theta between u and w.

As we know the formula for angle between two vectors.

$\cos\ \theta=\dfrac{\vec{u}.\vec{w}}{\mid u\mid \mid w\mid}$

So, it becomes,

$\cos \theta=\dfrac{2-8}{\sqrt{1^2+2^2+(-2)^2}\sqrt{1^2+4^2}}\\\\\cos \theta=\dfrac{-6}{\sqrt{17}\sqrt{17}}=\dfrac{-6}{17}=-0.352\\\\\theta=\cos^{-1}(\dfrac{-6}{17})=110.66^\circ$

Hence, the value of cos theta is -0.352.

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3 years ago

If x was 4, what is the value of 4x + 3

Gemiola [76]

Answer:

Step-by-step explanation:

4(4)+3

16+3=19

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2 years ago

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Answer:

Step-by-step explanation:

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Al's Produce Stand sells 8 ears of corn for $2.25. Barbara's Produce Stand sells 12 ears of corn for $3.50. Write two equations,

Gennadij [26K]

Answer:

6n = 1.50

and

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Step-by-step explanation:

Here in this question, we are interested in writing equations that relate the number of ears of corn sold and the cost.For Al’s produce stand, let the price per corn sold be n

Thus;

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