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4 years ago

Find the value of X.

Mathematics

1 answer:

PilotLPTM [1.2K]4 years ago

4 0

As the complete angle is right angle that is 90°

So both the angles should add up to 90°

(3x+2) + (x+16)=90

combine the like terms

4x+18 = 90

Subtract 18 from both sides

4x= 72

divide both sides by 4

x=18

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The total value of the account is based on the function f(x) = q • 1.025x, where x represents the number of years the money has

Harman [31]

Would it not just be q? Since I am assuming that 1.025 is the interest rate of the bank hence why it would be multiplied by the year.

6 0

3 years ago

For a repeated-measures study comparing two treatments with a sample of n = 9 participants, the difference scores have a mean of

Korolek [52]

Answer: Estimated standard error for the sample mean difference would be 1.

Step-by-step explanation:

Since we have given that

Mean of MD = 4.90

So, Sum of difference would be

$4.9\times 9=44.1$

S = 288

n = 9

We need to find the standard error for the sample mean differences.

Estimated standard error for the sampled mean difference would be

$\dfrac{\sqrt{Sum(D^2)-(\dfrac{sum(d)^2}{n})}}{n(n-1)}}\\\\=\dfrac{\sqrt{288-\dfrac{44.1^2}{9}}}{9(9-1)}\\\\=0.99\\\\\approx 1$

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3 years ago

How do I write this as an equation

Lana71 [14]

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5 0

4 years ago

5. You answered 21 out of 25 questions correctly on a test. Did you reach your goal of getting at least 80%?

hichkok12 [17]

Answer:

You scored more than 80 %

Step-by-step explanation:

21/25

We need to change this to a decimal, then to a percent

21/25 *4/4 = 84/100

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6 0

4 years ago

Read 2 more answers

Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a standard deviation of 1300 hours

matrenka [14]

Answer:

0.03593

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 17,340

μ is the population mean = 15,000

σ is the population standard deviation = 1300

z score:

z = 17340 - 15000/1300

z =1.8

Probability value from Z-Table:

P(x<17340) = 0.96407

P(x >17340) = 1 - P(x<17340)

= 1 - 0.96407

= 0.03593

The probability that the life span of the monitor will be more than 17,340 hours is 0.03593

5 0

3 years ago