3 years ago

The number nine added to the product of 7 and -10 is what number?

Mathematics

1 answer:

wel3 years ago

7 0

Answer:

Step-by-step explanation:

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PLEASE HELP WITH THESE TWO QUESTIONSSS 1. Which value is equivalent to sin20∘?

Nata [24]

Answer:

a) $\cos(70\degree)$

b) 12.72 units

Step-by-step explanation:

Recall that the sine and cosine are completed functions.

This means that: $\sin(x)=\cos(90-x)$

$\sin(20\degree)=\cos(90-20)$

$\sin(20\degree)=\cos(70\degree)$

Recall that: sine ratio is opposite/hypotenuse

$\sin 58=\frac{|PQ|}{15}$

This implies that:

$|PQ|=15\sin 58$

$|PQ|=15(0.848)$

$|PQ|=12.72$

4 0

4 years ago

Jenny is building a rectangular garden around a tree in her yard. the southwest corner of the garden will be 2 feet south and 3

irina [24]

3 feet west + 4 feet east means that the length of the rectangle is 7
2 feet south and 1 foot north means that the height (or width) 3.
Since the rectangle is 3 ft by 7ft the total distance around (perimeter) is 2 (l+w) or in this case 2 (7 +3) = 2 (10) = 20 ft Answer b
Drawing a picture helps.

5 0

3 years ago

Read 2 more answers

X squared plus x y - 12 y squared

Licemer1 [7]

(x-4y) (x+3y)
Grouping :)

5 0

3 years ago

What is the correct answer?

DochEvi [55]

The third one down is the correct answer. (-55 and 1)

4 0