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3 years ago

Which of these is equal to cos 47°? a. cos 43° b. sin 43° c. tan 43° d. cos 133°

2 answers:

6 0

Complementary angles are angles whose sum is equal to 90 degrees. The cosine of an angle is equal to the sine value of its complementary. In this case, the complementary of 47 degrees is 43 degrees. Hence cosine 47 should be equal to sin 43. That is letter B

patriot [66]3 years ago

4 0

Hello,

cos (47°)= sin (90°-47°)=sin (43°) [complementary angles]

Answer B

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Which question can be answered by finding 212÷23? A. How many 23-meter long pieces of ribbon are needed to have a total of 212 m

SOVA2 [1]

The correct answer is the letter A because a division problem shows a total amount being broken into equal parts.

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This choice includes the parts and total information.

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2 years ago

Read 2 more answers

Activity

hodyreva [135]

Answer:

The answers to each part are:

Part A.

The quantity of apples is one-third of the quantity of grapes.

Part B.

The quantity of apples is a quarter of the quantity of strawberries.

Part C.

The number of cherries is two-elevenths of the total fruit.

Step-by-step explanation:

To identify the answer in each case, you must remember that all the parts are equal, then:

Part A.

The parts of apples are 1 and the parts grapes are 3, so if you divide the first quantity with the second quantity you obtain:

1 / 3 = 1/3 (one-third)

So, the quantity of apples is one-third of the quantity of grapes or the quantity of apples is three times smaller than the quantity of grapes.

Part B.

The parts of apples are 1 and the parts of strawberries are 4, then you must divide the first quantity with the second quantity:

1 / 4 = 1/4 (a quarter)

In this case, the quantity of apples is a quarter of the quantity of strawberries or the quantity of apples is four times smaller than the quantity of strawberries.

Part C.

First, you must add all the part of fruit:

1 part apple
1 part orange
4 parts strawberry
2 parts cherry
3 parts grape

The total of fruits is 11 parts, taking into account the quantity of cherries is 2, now you can divide the number of cherries with the total parts of fruit:

2 / 11 = 2/11 (two-elevenths)

Now, you can see the number of cherries is two-elevenths of the total fruit.

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2 years ago

2. Which of the following statements is true?

Vesnalui [34]

The first and last choices are true.

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3 years ago

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bezimeni [28]

Answer:

Always

Step-by-step explanation:

Subtracting a from both sides yields b>0, which is always true since b is a positive integer.

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11 months ago

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sertanlavr [38]

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The Correct choices are :

the dependent variable is y

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2 years ago