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2 years ago

R/3 - 9 ≥ - 2 Does anyone know this

Mathematics

1 answer:

irina1246 [14]2 years ago

3 0

Answer:

See the image below:)

Step-by-step explanation:

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If 15 baseballs weighs 75 ounces how many baseballs with 15 ounces

igor_vitrenko [27]

Answer:

Step-by-step explanation:

75/15=5

Bam

5 0

2 years ago

Your $440 gets 5.8% interest compounded annually for 8 years. What will your

ladessa [460]

Answer:

492.52

Step-by-step explanation:

The formula is P(t) = P(0) x (1+r/n)^nt so...

P(t) = 440 (1+0.058/1)^8

P(t) = 492.52

3 0

2 years ago

Graph of the figure after the indicated translation

Arlecino [84]

After the translation performed J is now (-2,-2), M is now (-1,-4), K is now (4,1), and L is now (5,-1).

Hope this helps!

6 0

3 years ago

In Pennsylvania the average IQ score is 101.5. The variable is normally distributed, and the population standard deviation is 15

blsea [12.9K]

Answer:

We conclude that the Pennsylvania school district have an IQ higher than the average of 101.5

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 101.5

Sample mean, $\bar{x}$ = 106.4

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 15

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 101.5\\H_A: \mu > 101.5$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{106.4 - 101.5}{\frac{15}{\sqrt{30}} } = 1.789$

Now, $z_{critical} \text{ at 0.05 level of significance } = 1.96$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, we conclude that the Pennsylvania school district have an IQ higher than the average of 101.5

5 0

2 years ago

Graph a line that contains the point (-5,6) and has a slope of 2/3

Step2247 [10]

Answer:

y= 2/3x + 28/3

Step-by-step explanation:

First, write your equation as y=2/3x+b. Plug in your coordinate into the equation, it should look like this: 6=2/3(-5)+b. Multiply 2/3 by -5 to get -10/3. It should look like this: 6= -10/3+b. Add 10/3 to both sides to get your y-intercept of 28/3. Go back to your original equation and plug 28/3 into b. This is your final equation: y= 2/3x + 28/3. Hope this helped!

5 0

3 years ago