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SIZIF [17.4K]
3 years ago
10

Given ΔABC, AB=45 AC=CB=34 Find m∠B

Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0

Answer:

82.87

Step-by-step explanation:

Angle A and Angle B are equal.

The degree of a triangle is 180 degrees.

The equation is B^2+C=180

There's not enough information, but I used an online calculator.

I hope this helps!

pls ❤ and give brainliest pls

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A product comes in cans labeled "38 oz". A random sample of 10 cans had the following weights:
KiRa [710]

Answer:

b. 35.9, 39.1 ounces

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

barX=37.465 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=2.27 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

barX +- t*[(s)/(sqrt{n))]   (1)

In order to calculate the critical value t we need to find first the degrees of freedom, given by:

df=n-1=10-1=9

Since the Confidence is 0.95 or 95%, the value of alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that t_(alpha/2)=2.26

Now we have everything in order to replace into formula (1):

37.465-2.26[(2.27)/(sqrt{10))]=35.9    

37.465+2.26[(2.27)/(sqrt{10))]=39.1

So on this case the 95% confidence interval would be given by (35.9;39.1)    

7 0
3 years ago
8 times 10 to the power of 5 is how many as great as 8 times 10 to the power of -1
Katena32 [7]

Answer:

6 times as great

Step-by-step explanation:

8*10 to the power of <em>5 </em>

8*10 to the power of <em>-1</em>

7 0
3 years ago
Read 2 more answers
Solve system of equations
kotykmax [81]

1.) x= 3

2.) y= -1

3.) z= negative 4/3

8 0
3 years ago
How to solve -2y-4=4(y-1)
tangare [24]
-2y-4=4(y-1)

Always remove the pararentheses as your first step.

-2y-4 = 4y - 4

Combine like terms.

-2y - 4y = 4 - 4

-6y = 0

Divide both sides by -6 to find y.

-6y/-6 = 0/-6

y = 0

Done



6 0
3 years ago
Read 2 more answers
ANSWER THE BOTTOM QUESTION PLEASE
MrMuchimi

Answer:

p70 is the point of the bottom lines

7 0
3 years ago
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