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NNADVOKAT [17]
3 years ago
15

Plz help me answer 4-10 i really need help

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
4 0
Use the formula V=\frac{1}{6}  \pi  d^{3}
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Find the tangent of ∠I.
Nady [450]

Answer:

tanI = \frac{\sqrt{70} }{5}

Step-by-step explanation:

We require to calculate GH using Pythagoras' identity in the right triangle.

GH² + GI² = HI²

GH² + 5² = (\sqrt{95} )²

GH² + 25 = 95 ( subtract 25 from both sides )

GH² = 70 ( take square root of both sides )

GH = \sqrt{70}

Then

tanI = \frac{opposite}{adjacent} = \frac{GH}{GI} = \frac{\sqrt{70} }{5}

4 0
3 years ago
Brainly users, do your magic please.
Keith_Richards [23]

Answer:

c.) 8/3

Step-by-step explanation:

the two sides must weigh the same, or 12 grams.

the weights labelled x combined with the 4 grams weight should equal 12 grams.

the equation solved for x would be:

3x + 4 = 12

3x = 8

x = 8/3

6 0
3 years ago
Solve x^2 - 4x - 7 = 0 by completing the square. What are the solutions?
sergejj [24]

Answer:

x = ±√11 +2

Step-by-step explanation:

Given in the question an equation,

x²- 4x - 7 = 0

Step 1

take 7 to the right side of equation

x²- 4x = 7

Step 2

To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b, the coefficient of x

2ab = -4x

2xb = -4x

b = -2

Step 3

Take square of b and add it to each side of the equation.

x²- 4x + (-2)²= 7 + (-2)²

x²- 4x + 4 = 7 + 4

x²- 4x + 4 = 11

Step 4

Factor the perfect trinomial square

(x−2)² = 11

Step 5

take square root on both sides

√(x−2)² = √11

(x-2) = ±√11

x = ±√11 +2

8 0
4 years ago
Read 2 more answers
4p+6-3 combine like terms?
amm1812

Answer:

4p+3

Step-by-step explanation:

Because 4 has the variable p next to it, 4 can not be the same as 6 or 3 because they are whole numbers. So the only thing you can do here is 6-3, which is 3.

4 0
3 years ago
Look at the equation below. Identify which equation has no solution
IgorC [24]

Answer:

C

Step-by-step explanation:

24a-22  = -4(1-6a)\\\\\implies 24a-22  = -4+24a\\\\\implies -22 = -4\\\\\text{Which is not true, so no solutions exist.}

4 0
2 years ago
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