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wlad13 [49]
2 years ago
5

Solve. Check your solution. -4+s= -68

Mathematics
2 answers:
rusak2 [61]2 years ago
7 0
What the top guy said
Andrews [41]2 years ago
6 0
-64 + -4 = -68

That is because 64 + 4 = 68 and the negatives in this case are the same way as if it was all positive.
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eva and Liam are reading a novel in their English class. Liam has read 17 pages less than eva has. if they had read 265 pages co
charle [14.2K]
Let x= # pages Liam read
x + (x+17) = 265
2x + 17 = 265
-17.          -17
2x=248
x=124
Liam read 124 pages
8 0
3 years ago
Read 2 more answers
B-3/15=1<br> I have a lot of answers but I don't know which one is correct
Marina CMI [18]
<span>b-3/15=-1

We simplify the equation to the form, which is simple to understand
<span>b-3/15=-1

Simplifying:
<span>b-0.2=-1

We move all terms containing b to the left and all other terms to the right.
<span>+1b=-1 + 0.2

We simplify left and right side of the equation.
<span>+1b=-0.8

We divide both sides of the equation by 1 to get b.
<span>b=-0.8
</span></span></span></span></span></span>
8 0
3 years ago
Assume that a random sample of 4 Goldfinch birds are going to be used to test the above hypothesis. Compute the largest value of
Misha Larkins [42]

This question is incomplete, the complete question is;

Assume that body masses of Goldfinch birds follow a normal distribution, with a standard deviation equal to 0.04 oz. An ornithologist who would like to make some inference about the average body mass of the Goldfinch birds. In particular, at a significance level of 0.01, she would like to test the null hypothesis H₀: Average body mass of the Goldfinch birds is 0.5 oz, against the alternative claim that average body size is less than 0.5 oz.

      Assume that a random sample of 4 Goldfinch birds are going to be used to test the above hypothesis. Compute the largest value of the sample mean, that will allow the experimenter reject the null and prove the alternative at significance level 0.01. For this problem, make sure that your solution includes all steps of your computation. You will not earn points if you just use a formula

Answer: the largest value of the sample mean that will enable the experimenter to reject the null hypothesis is 0.4534 oz.

Step-by-step explanation:

Let us consider testing a hypothesis about a population mean with population standard deviation that is known,

Let the average body mass of the Goldfinch bird be μ^μ

Now our hypotheses are will be;

H₀ : μ = 0.5    and

H₁ : μ < 0.5

For the test, we shall use the z statistic which will be

z = (x"-μ)/(σ/√n)

Now given that;

σ = 0.04 and n = 4  

sample mean x" = ?

Now in order to be able to reject the null hypothesis, the p-value should be ≤ α = 0.01.

so to find the largest value of sample mean, we will use the maximum of p-value that is 0.01.

For a p-value = 0.01 at the lower tail (which is the percentile for z),

the corresponding z will be -2.33

so we substitute our values into our formula

z = (x"-μ)/(σ/√n)

z(σ/√n) = (x"-μ)

-2.33(0.04/√n) = (x"-0.5)

-0.0466 = x" - 0.5

x" = 0.5 - 0.0466

x"= 0.4534

therefore the largest value of the sample mean that will enable the experimenter to reject the null hypothesis is 0.4534 oz.

4 0
3 years ago
Helpppppppppppppopppppp
Fittoniya [83]

Answer:

9x+18

Step-by-step explanation:

7 0
2 years ago
The function f(x) = (10)–x is reflected across the x-axis to create the function g(x). Which ordered pair is on g(x)? (–2, 75) (
IRINA_888 [86]
Neither point is on either function.
f(x) reflected over the x-axis is
y=-10 + x
7 0
3 years ago
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