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3 years ago

I need help pls if u are good at math stuff

Mathematics

1 answer:

Ulleksa [173]3 years ago

3 0

Answer:

My answer came out to -22.

Step-by-step explanation:

Start multiplying from left to right:

Two negatives multiplied are positive:

-2.2·(-2)=4.4

A negative and a positive multiplied equal a negative:

4.4·(-1)=-4.4

-4.4·5=-22

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The temperature at the beginning of the day was 3°C. The temperature dropped 12°C by the end of the day. What was the temperatur

umka2103 [35]

Answer:

3 - 12 = -9°C

So the temperature in the end of the days was -9°C

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3 years ago

How many times does 56 go into 160

aksik [14]

Hello!

160÷56= 2.86
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Hope that made sense!

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4 years ago

H(2)=2^2-5(2)+7<br> find the valuee

umka21 [38]

Answer:

h(2) = 1

Step-by-step explanation:

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3 years ago

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A ladder leaning against a building makes an angle of 58° with level ground. If the distance from the foot of the ladder to the

s344n2d4d5 [400]

Answer:

About 10 feet

Step-by-step explanation:

Please see the attached image.

tan(58)=x/6

x=tan(58)*6≈10

4 0

3 years ago

Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is

ikadub [295]

The question is incomplete, the complete question is below:

Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is the temperature in Celsius at a height of kilometers above the planet's surface. The relationship is as follows: T(h) = 30.5 -2.5h.

a) Calculate T^-1(x)

b) T^-1(15)

Answer:

a) $T^{-1} (x)= \frac{30.5-x}{2.5}$

b) 6.2 °C

Step-by-step explanation:

a) $T(h) = 30.5 - 2.5h\\2.5h = 30.5-T(h)\\h = \frac{30.5-T(h)}{2.5}\\ T^{-1} (x)= \frac{30.5-x}{2.5}$

b) $T^{-1} (x)= \frac{30.5-x}{2.5}\\\\T^{-1} (15)= \frac{30.5-15}{2.5}=6.2$

3 0

3 years ago