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3 years ago

What is the length of BC? 55 units 41 units 82 units

Mathematics

1 answer:

ehidna [41]3 years ago

4 0

Step-by-step explanation:

In the figure below, determine the perimeter of AEFG.

2x + 15

39 units

55 units

66 units

82 units

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Your teacher is giving a test worth 200 points. There are a total of 32 four-point and

adelina 88 [10]

A+b=32
4a+7b=200

a = 15
b = 20

There are 15 four pointers and 20 seven pointers. You can plug in the numbers to check.

I believe this is correct. If not i am extremely sorry.
Have a wonderful day :)

6 0

3 years ago

Read 2 more answers

Isolated triangle 68 perimeter equal sides more than 10 ft use x for the shorter side formula

Ugo [173]

Answer:

Step-by-step explanation:

Find the perimeter of an isosceles triangle whose equal sides have a size of 10 m each and the angle between them equal to 30°. We need to know all sides in order to find the perimeter of this triangle. Let x be the base of this isosceles triangle.

6 0

2 years ago

A coin, having probability p of landing heads, is continually flipped until at least one head and one tail have been flipped. (a

Natali [406]

Answer:

(a)

The probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

Step-by-step explanation:

(a)

Case 1

Imagine that you throw your coin and you get only heads, then you would stop when you get the first tail. So the probability that you stop at the fifth flip would be

$p^4 (1-p)$

Case 2

Imagine that you throw your coin and you get only tails, then you would stop when you get the first head. So the probability that you stop at the fifth flip would be

$(1-p)^4p$

Therefore the probability that you stop at the fifth flip would be

$p^4 (1-p) + (1-p)^4 p$

(b)

The expected numbers of flips needed would be

$\sum\limits_{n=1}^{\infty} n p(1-p)^{n-1} = 1/p$

Therefore, suppose that $p = 0.5$ , then the expected number of flips needed would be 1/0.5 = 2.

7 0

3 years ago

PLEASE HELP! GIVING OUT BRAINLIEST

cestrela7 [59]

a) Unit rate = 24 oz / 10lb = 2.4 oz / lb

This means that we need 2.4 oz of seasoning for every pound of crawfish

b) For 30 lbs....we need 30 * 2.4 = 72 oz of seasoning

c) With 36 oz of seasoning...we can cook 36 / 2.4 = 15 lbs of crawfish

7 0

3 years ago

The math test has 15 multiple choice questions, each with 3 answers. If Betty guesses correctly on the first 4 questions,

Sonbull [250]

Answer:

90 percent

Step-by-step explanation:

15 divided by 4 so 3.75 i rounded it and i got 4

8 0

3 years ago