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3 years ago

Can someone help me with this. Will Mark brainliest.

Mathematics

1 answer:

Rasek [7]3 years ago

5 0

Answer:

3.3

Step-by-step explanation:

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In a sequnece u5=-3.7 and u15 =-52.3, what is the 19th term

PilotLPTM [1.2K]

u19=-71.74

Step-by-step explanation:

u5=a+4d=-3.7....(1)

u15=a+14d=-52.3....(2)

-10d=48.6

d=-48.6/-10

d=-4.86

Substitute-4.86 into....(1)

u5=a+4(-4.86)=-3.7

a+(-19.44)=-4.7

a=-3.7-(-19.44)

a=15.74

19term=a+18d=?

=15.74+18(-4.86)

=15.74+(-87.48)

19th term =-71.74

6 0

2 years ago

When dividing 39100 by 100 the digits in the quotient will move how many places to the right

Shalnov [3]

It will be living two places to the edith hope this helps good luck

8 0

2 years ago

(-4,6); slope = -3/4

yawa3891 [41]

Answer:

y-6=-3/4(x+4)

Step-by-step explanation:

y-y1=m(x-x1)

m=-3/4

y-6=-3/4(x-(-4))

y-6=-3/4(x+4)

6 0

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

6 0

3 years ago

(-18)-(4) please help thank you

Alexxx [7]

Answer:

-22

Step-by-step explanation:

18 + 4 = 22

then just add the negative to 22

-22

3 0

3 years ago

Read 2 more answers