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vagabundo [1.1K]
3 years ago
12

Help I will be marking brainliest!!! A. 28.8 B. 36 C. 48 D. 38.4

Mathematics
2 answers:
galben [10]3 years ago
5 0

Answer:

It is A (28.8)

Step-by-step explanation:

sdas [7]3 years ago
4 0

Answer:

C. 48 ♡

Step-by-step explanation:

I hope this help you :)

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If the radius of mars is about 13.7% of neptune's radius, what is the radius of neptune?
Marianna [84]
The volumetric mean radius of Mars is about 3389.5 km. We know that it's 13.7% of Neptune's mean radius, so we can write it down as:

3389.5 = 13.7% of x (where x is Neptune's radius)
3389.5 = 13.7% x
3389.5 = 137/1000x                / * 1000 (both sides)
3389500 = 137x                       / ÷ 137 (both sides)
x = 24740.87591240876
x ≈ 24740.88

Answer: The mean radius of Neptune is about 24740.88 km.
6 0
3 years ago
Please help me with this question!! I also need the steps
e-lub [12.9K]

Hi there!

\large\boxed{x = \frac{\pi}{3} \text{ and } \pi}

We are given:

cos(7x)cos(4x) = -1 - sin(7x)sin(4x)

Begin by moving all terms with variables to one side:

cos(7x)cos(4x) + sin(7x)sin(4x) = -1

The corresponding trig identity is cos(A - B). Thus:

cos(7x - 4x) = cos(7x)cos(4x) + sin(7x)sin(4x) = -1

cos(3x) = -1

cos = -1 at  π, so:

3x = π

x = π/3

We can also find another solution. Let 3π = -1:

3x = 3π

x = π

Thus, solutions on [0, 2π) are π/3 and π.

8 0
3 years ago
Find the value of y.<br> m&lt;1 = 3y + 6
Rufina [12.5K]

Step-by-step explanation:

m > 1 = 3y  + 6\\  \frac{m >  -1 - 6}{3}  =  \frac{3y}{3}  \\ y =  \frac{m >  - 5}{3}

7 0
3 years ago
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2 years ago
A shipping company charged $15 to ship a package and 5% of the shipping charge for insurance on the package. What was the total
pickupchik [31]
Take $15 and multiply it by 0.05 (this will get you the percent). You should get 0.75. So you add 0.75 to $15 and you should get $15.75
4 0
3 years ago
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