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3 years ago

Where do I plot 1.25 and -1.25

Mathematics

1 answer:

slavikrds [6]3 years ago

7 0

Answer:

I'd need to see more, but because they are the same number just positive and negative they'd be on opposite ends of zero

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the legs of a right triangle measure 5 inches and 7 inches if the theta is the the angle between the 5 inch leg and hypotenuse,

Goryan [66]

First find the hypotenuse.

a^2 + b^2 = c^2

5^2 + 7^2 = c^2

c^2 = 25 + 49

c = sqrt(74)

sin(theta) = opp/hyp

sin(theta) = 7/(sqrt(74))

7 0

3 years ago

You

vichka [17]

Answer:

The Surface area of the moon is $4.53 \times 10^{17}$

Step-by-step explanation:

Given:

Diameter of the moon = 3.8 x 10 to the 8th

To Find :

The surface area of the moon = ?

Solution:

The moon is in the shape of of the sphere .

So the surface area of the moon = surface area of the sphere

The surface area of the sphere = $4\pi r^2$

Where r is the radius of the sphere

Radius , r = $\frac{Diameter}{2}$

r = $\frac{3.9 \times 10^8}{2}$

r = $1.9 \times 10^8$

Now the surface area of the moon with radius r = $1.9 \times 10^8$ is

=> $4 \pi \times (1.9 \times 10^8)^2$

=> $4 \times 3.14 \times (1.9 \times 10^8)^2$

=> $12.56 \times 3.61 \times 10^{16}$

=> $45.34 \times 10^{16}$

=> $4.53 \times 10^{17}$

3 0

4 years ago

Newton’s Law of Cooling expresses the relationship between the temperature of a cooling object y and the time t elapsed since co

True [87]

Answer:

79 °F

Step-by-step explanation:

Newton’s Law of Cooling:

$y = ae^{-kt} + c$

Data

The initial temperature of a liquid is 160 °F

The temperature in the room (c) is 76 °F

Then a = 160 - 76 = 84 °F

k = 0.23

t = 15 minutes

Replacing into the equation:

$y = 84e^{-0.23 \times 15} + 76$

y = 79 °F

4 0

4 years ago

Read 2 more answers

An animal shelter has 18 cats.

AleksAgata [21]

Answer:

there are nine dogs

Step-by-step explanation:

9 + 9 = ? We find out by addition, if there are 18 cats nine more cats than dogs; it is quite simple 9 and 9 is 18, so the number of dogs should be equal to the number of cats. hope this helps : )

6 0

3 years ago

Combine these two sentences using a subordinate conjunction

stellarik [79]

Answer:

Charles wanted to buy a new guitar, so Charles saved his money for three months

8 0

4 years ago