3 years ago

Please help need help djhdhdhdj

Mathematics

1 answer:

suter [353]3 years ago

3 0

Answer:

SAS

Step-by-step explanation:

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Car = V-8 sedan Years driven = first through third Miles driven = 14,000 miles each year In dollars and cents, the total project

saveliy_v [14]

Answer:

609

Step-by-step explanation:

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3 years ago

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean $(\mu)$ = 500 and a standard deviation $(\sigma)$ = 100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = $\dfrac{Y-\mu}{\sigma}$

Z-score = $\dfrac{625-500}{100}$

⇒ Z-score = $\dfrac{125}{100}$

⇒Z-score =1.25

Therefore , the required z-score = 1.25

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3 years ago

Emma had 10 Balls in a bag. The balls were numbers 1 through 10. She wanted to test the probability of drawing a ball that is a

Goryan [66]

Answer:

30%
Unlikely

Step-by-step explanation:

The balls - multiples of 3 are:

3, 6 and 9

The probability of a multiple of 3 is:

3 out of 10 or
P = 3/10 = 30%

30% probability is in the range 0%-50% so this event is unlikely

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3 years ago

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Find the angles marked with letters. Please help!!

Paladinen [302]

A=34°
B=76°
C and d = 70°
because a triangle is 180° and we know
a+b+c=180
76+34=110
180-110=70

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3 years ago

Solve the system of equations.

sveta [45]

Answer: B. (-1,3) and (2,6)

Step-by-step explanation:

I just found the points they met on the graph

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2 years ago

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