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3 years ago

Someone help me with this ASAP

Mathematics

1 answer:

sladkih [1.3K]3 years ago

7 0

Answer: measure of angle 1 and 3 are both 82 degrees

Step-by-step explanation:

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Can someone please help me on this question

gregori [183]

Answer: It's C.

Step-by-step explanation:

3 0

2 years ago

The number of pieces of mail that a department receives each day can be modeled by a distribution having mean 44 and standard de

saveliy_v [14]

Answer:

Step-by-step explanation:

Assuming a normal distribution for the number of pieces of mail that a department receives each day, the formula for normal distribution is expressed as

z = (x - u)/s

Where

x = number of pieces of mail

u = mean

s = standard deviation

From the information given,

u = 44

s = 8

We want to find

P(x lesser than or 40) or P(x greater than 48)

For P(x lesser than or 40)

For x = 40,

z = (40 - 44)/8 = - 4/8 = - 0.5

Looking at the normal distribution table, the corresponding value of the z score is 0.30854

P(x greater than 48) = 1 - P(lesser than or or equal 48)

For x = 48,

z = (48 - 44)/8 = 4/8 = 0.5

Looking at the normal distribution table, the corresponding value of the z score is 0.69146

P(x greater than 48) = 1 - 0.69146 = 0.30854

The probability that the sample mean will be less than 40 or greater than 48 using is

0.30854 + 0.30854 = 0.69146

7 0

3 years ago

What is the product of the polynomial (7x+7) (x+2)

kolbaska11 [484]

Answer: 7x^2+21x+14

Step-by-step explanation:

(7x+7)(x+2)

Multiply each term in the first parentheses by each term in the second parentheses (FOIL)

7x×x+7x×2+7x+7×2

↘ ↙

7x×x calculate product

7x^2+7x×2+7x+7×2

↘ ↙

7x×2 calculate product

7x^2+14x+7x+7×2

↘↙

7×2 multiply numbers

7x^2+14x+7x+14

↘ ↙

21x collect like terms

7x^2+21x+14 is your end result.

3 0

3 years ago

Hi, I don't feel very confident about my work in this calculus problem and I would appreciate it if anyone else could note any c

Lostsunrise [7]

You're pretty close. It's all in the details.

A. Correct.

B. Correct.

C. Sign error in the boxed answer. -(-0.5) = 0.5
The graph shows c ≈ 1.855. If a is more than that and decreasing, area is increasing. The sign of dA/dt will be positive. (Compare to D)

D. Units are not shown. Numerical value is correct.

6 0

3 years ago

Fraction for dividing 4 pies equally between 6 people

spin [16.1K]

The answer is 1 1/2 because if you divide 4 into 6 you get I need and a half or 1.5

3 0

3 years ago