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4 years ago

Find the measure of angle A

Mathematics

1 answer:

dalvyx [7]4 years ago

4 0

Answer:

-65

Step-by-step explanation:

8x + 4 = 3x - 6

Bring the 3x over to the 8x and subtract them to get 5x.

5x + 4 = -6

Bring the 4 over and subtract them both to get -10 and then divided 5x with -10 and get -2x.

-2x = 130

Divide -2x with 130 and get -65.

If its wrong I am so sorry!!;( I hope you have a wonderful day<3

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Is “12.95 x 10^4” a Scientific Notation? Yes or No? Explain.

trapecia [35]

Answer:

Yes

Step-by-step explanation:

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8. and that is something Very similar.

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7 0

3 years ago

The probability that a random student at Elmville College is a freshman is 0.3; a sophomore, 0.25; and a junior or senior, 0.45.

Andre45 [30]

Let $L_1$ denote the event that a student is a freshman, $L_2$ a sophomore, $L_3$ a junior, and $L_4$ a senior.

Let $E$ denote the event that a student majors in engineering. By the law of total probability,

$\mathbb P(E)=\mathbb P(E\cap L_1)+\mathbb P(E\cap L_2)+\mathbb P(E\cap L_3)+\mathbb P(E\cap L_4)$

By the definition of conditional probability, we can expand each of these intersection probabilities to get

$\mathbb P(E)=\mathbb P(E\mid L_1)\mathbb P(L_1)+\mathbb P(E\mid L_2)\mathbb P(L_2)+\mathbb P(E\mid L_3)\mathbb P(L_3)+\mathbb P(E\mid L_4)\mathbb P(L_4)$

$\mathbb P(E)=0.15\cdot0.3+0.2\cdot0.25+2(0.3\cdot0.45)=0.365$

8 0

4 years ago

The length of a rectangle is 3 times the width. The perimeter of the rectangle is 56 inches. Determine the width of the rectangl

Phoenix [80]

Answer:

Step-by-step explanation:

56/2=28 (since the formula is w x l x 2)

28/4=7

Width is 7 inches and length is 21 inches.

7 + 21 = 28 x 2 = 56

8 0

3 years ago

The amount of a sample remaining after t days is given by the equation P(1) - Al2where A is the initial amount of

Bezzdna [24]

Answer:

The answer is actually 74 days. I know how to algebraically solve this, however I am unsure how to transpose my work onto the computer.

Step-by-step explanation:

I can also tell you that edgenuity will say 74 is correct.

7 0

3 years ago

The cost of an item was d, dollars. An 8.32% tax was added to the item. Write an expression that

vampirchik [111]

Answer:the answer90.40 d,dolars

Step-by-step explanation:because it is 8.32 and I got 90.40 your welcome

5 0

3 years ago