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Mrac [35]
2 years ago
13

(-1)[-3(-5)(-7)]+(-3+7)(-2)

Mathematics
2 answers:
posledela2 years ago
6 0
Simplify the expression.

Answer: 97
Sati [7]2 years ago
4 0

Using pemdas, we get:

(-1)[-3(-5)(-7)]+(-3+7)(-2) = (-1)(-105) + 4(-2) = 105 - 8 = 97

Hope that helps!

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4 cot theta<br>=<br>tan theta<br>how do I I find the value of quadrant?​
Ray Of Light [21]

Answer:

4cotα=tanα

4(1/tanα)=tanα

(4/tanα)=tanα

cross multiply

=> 4=tan²α

√4=√tan²α

±2=tanα

α=arc( tan) |2|

α=63.4° ( in first quadrant)

and

α=180+63.4=243.4 in the third quadrant

since we also found a negative answer( i.e –2) then α also lies in quadrants where it gives a negative value(i.e second and fourth quadrants)

α=180–63.4=116.6° in the second quadrant

α=360–63.4=296.6 in the fourth quadrant

therefore theta( in my case, alpha) lies in all four quadrants and is equal to:

α=63.4°,243.4°,116.6°and 296.6°

5 0
3 years ago
Estimate the instantaneous rate of change of P(t) = 2t² + 3 at the point t = – 3
elena55 [62]

Step-by-step explanation:

2t² + 3

2 x 9 + 3

18 + 3

21 is instanous rate

3 0
2 years ago
If I was born in 1946 what year was I twenty years old
oee [108]

Answer:

If you was born in 1946 you would be twenty years old in:

1946+20

1966

4 0
2 years ago
The ratio of length to width in a rectangle is 3 to 1. If the perimeter of the rectangle is 136 feet, what is the length of the
Goshia [24]
Add the ratios 3:1 = 4
divide perimeter 128 by 4 = 32
multiply this by each ratio so 3:1 becomes 96length:32width
remember there are two lengths and two widths in the perimeter so divide by 2 to find the length = 48
8 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!!!!
dedylja [7]

Answer:

B) 8

Step-by-step explanation:

Triangles MNC and RSC are similar because all 3 angles are the same, so the the ratio between each side should be the same.

If NC=12 and SC=6 then triangle MNC is scaled up by 2 from triangle RSC. This means each side of MNC is 2 times bigger than on RSC. So, sense RS=4, we can multiply that by 2 to get MN=8.

8 0
2 years ago
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