Pls help me

Mathematics

1 answer:

deff fn [24]2 years ago

7 0

Step-by-step explanation:

the sum of these 2 abgles give you 180°

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Evaluate x2 + 12, when x = 3

anygoal [31]

Answer:

Step-by-step explanation:

x = 3

2(3) + 12

6 + 12

6 0

2 years ago

Please help I don’t understand.... I will give brainliest to first and I will thank you!

Stolb23 [73]

To find the answer we can break the figure into two parts: a rectangle and a semi circle.

The perimeter of the rectangle:

(10+4)×2

=28 ft

The perimeter of the semi circle:

perimeter of a circle: 2×兀×radius

(The radius: 4/2)

We divide the perimeter by two as it is a semi circle,which is half the circumferece perimeter of a circle.

[2(3.14)(4/2)] / 2

=6.28 ft

We can then add up the numbers to find the answer, and remember that 4 cm is overlapped:

28+6.28-4

=30.28ft

Therefore the answer is 30.28ft.

Hope it helps!

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3 years ago

40% of OatyPop cereal boxes contain a prize. Hannah plans to keep buying cereal until she gets a prize. What is the probability

AnnZ [28]

Answer: Use a random number generator ranging from 1 to 10 and assign 1 through 4 as the prize and 5 through 10 as no prize.

Step-by-step explanation:

I just did the i-ready lesson, here you go mate! ^-^

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3 years ago

Read 2 more answers

Wendy is standing 60 feet away from a tree. Her eyes are 5 feet above the ground. She sees a bird hovering above a tree. The ang

Gennadij [26K]

The bird is 17 feet above the tree.

<u>Explanation:</u>

We need to think of this in terms of right triangles. If Wendy is 60 feet from a tree, the base of the right triangle is 60 feet. The height of the tree is the height of the right triangle. The angle of elevation is the one from the ground at her feet to the top of the tree and then to the bird. Let's start with the top of the tree first.

She's 60 feet away, we have the angle of elevation as 25 degrees, and we are looking for the height of the tree. In regards to the angle, the base of 60 is adjacent, and the height of the tree is opposite. The tangent ratio is height / base.

Let x be the height of the tree.

So,

$tan (25) = \frac{x}{60}$