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3 years ago

Solve problem A and B please!!

Mathematics

1 answer:

Nana76 [90]3 years ago

6 0

Answer:

a. Isosceles + Acute

b. Scalene + Right

Step-by-step explanation:

a. The side markers show that 2 sides are equivalent in length, making it isosceles. The angles are all noticeably under 90 degrees, resulting in it being acute.

b. There are no side markers whatsoever, making it scalene. There is a right angle marker, resulting in the triangle being right.

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A sporting goods store is having a 40% off sale. What would be the sale price for a pair of skis that originally cost $108.

Rzqust [24]

Answer:

$64.80

Step-by-step explanation:

Instead of saying 40% off, I look at is as paying 60% on. (100% less 40%). So I’m going to pay 60% of the original price of $108.

60% of $108 is $64.80

5 0

3 years ago

Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume

Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Sample size : n=41

Sample mean : $\overline{x}=4.0\text{ kg}$

Standard deviation : $\sigma=6.1\text{ kg}$

Then, 99% confidence interval for population mean will be :_

$4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)$

8 0

4 years ago

Choose the correct equation for the graph shown below

Paraphin [41]

Answer:

the second option, y=1/2cos(x- pi/4)

Step-by-step explanation:

6 0

3 years ago

4 students of 20 students

Harlamova29_29 [7]

5 groups of 4 students = 20 students????????????????

8 0

3 years ago

Which is the value of (−5) g ( - 5 ) if ()=3.4−8 g ( x ) = 3 . 4 x - 8 ?

quester [9]

For this case we have the following function:

$g (x) = 3.4x - 8$

We must find the value of the function for $x = -5$

We have then:

$g (-5) = 3.4 (-5) - 8$

Rewriting the function we have:

$g (-5) = -17 - 8\\g (-5) = -25$

Answer:

The value of g (-5) is given by:

$g (-5) = -25$

3 0

4 years ago