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Lana71 [14]
3 years ago
7

The radius of Earth's orbit is approximately 15,000,000,000 meters. The radius of Mercury's orbit is 5.8 × 109 meters. What is t

he difference of their radii?
A.4.3 × 1010



B.4.3 × 1011



C.9.2 × 109



D.9.2 × 1010



E.9.2 × 1011
Mathematics
1 answer:
Ilya [14]3 years ago
6 0

15,000,000,000 = 15 × 10⁹

15 × 10⁹ - 5.8 × 10⁹ = 9.2 × 10⁹ m

Answer: C. 9.2 × 10⁹ m

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Producto de (10x+7)(10x-7)
Marat540 [252]

Answer:

(10x−7)^2

Step-by-step explanation:

(10x+7)(10x-7)

i stead of making it a "100" since they are both the same  but positive and negative () and bring it to the power of 2

4 0
2 years ago
The diagram below shows a student using a clinometer to measure the height of a flagpole. When the student stands 40 feet away f
AVprozaik [17]
The correct answer is the flagpole is <span>33 feet high</span>.

Explanation:
Please refer to the attached picture.

We know:
CD = 40 feet
AC = 5 feet
∠BDC = α = 35°

Using trigonometry, we know that the definition of the tangent of an angle is the ratio between the opposite side and the adjacent side, therefore:
tan α = BC / CD

Solving for BC:
BC = CD · <span>tan α
      = 40 </span>· tan (35)
      = 28 feet

In order to find the height of the flagpole, we need to add the distance of the clinometer from the ground:
AB = BC + AC
      = 28 + 5
      = 33

Hence, the flagpole is 33 feet high.

5 0
3 years ago
What is another number of pennies and total mass of pennies in grams if my number of pennies is 10 and the mass in grams is 25
Angelina_Jolie [31]

Answer:

1 penny is equal to 2.5 grams

Step-by-step explanation:

1 penny = 2.5 grams

2 pennies = 5.0 grams

3 pennies = 7.5 grams

Just add 2.5 grams every penny.

Pick any number of pennies and multiply it by 2.5 (Don't forget to add grams ( g ) at the end.

7 0
3 years ago
Find the value of x. Round your answer to the nearest tenth.
skad [1K]

Answer:

x = 9.7

Step-by-step explanation:

Reference angle (θ) = 68°

Opposite = 24

Adjacent = x

Apply, the trigonometric function, TOA which is:

tan (/theta) = \frac{Opp}{Adj}

Plug in the values

tan 68 = \frac{24}{x}

Multiply both sides by x

x*tan 68 = 24

Divide both sides by tan 68

x = \frac{24}{tan 68}

x = 9.69662942

x = 9.7 (nearest tenth)

8 0
3 years ago
Can someone help me with the meaning of percent
LekaFEV [45]

69 out of 100 would be 69/100 = 0.69 = 69% were answered correctly

100% - 69% = 100-69 = 31 = 31%  = 31/100 were incorrect

8 0
2 years ago
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