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1 year ago

I REALLY need help I'll give anyone who can help me with any or all of these 50 points and brainliest

Mathematics

1 answer:

Alex787 [66]1 year ago

5 0

Hope this helps?

Desmos is a great resource to help you understand the concept.

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Multiply the fractions. Write your answers in simplest form. 1/2 x 2/5

zepelin [54]

First make it that both denominators are the same.
$(\frac{1}{2} \times 5) + ( \frac{2}{5} \times 2) = \frac{5}{10} + \frac{4}{10}$
Then add both numerators
$\frac{5}{10} + \frac{4}{10} = \frac{9}{10}$
Your final answer should be
$\frac{9}{10}$

6 0

2 years ago

Read 2 more answers

Which set of shapes contains members that are always similar to one another?.

Viefleur [7K]

Answer: Equilateral triangles.

Explanation: We know that in similar polygons, its all the corresponding angles are congruent. Only the set of equilateral triangles contains members that are always similar( by AAA similarity criteria) to one another as the measure of all the angles of equilateral triangle is fixed i.e. 60°.
Rest other do not have fixed measure for angles in it.

8 0

2 years ago

An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t

7nadin3 [17]

Answer:

The test statistics is $t = -1.7$

The Null and Alternative hypothesis are

$H_o : \mu = 47.2$ and $H_a : \mu \ne 47.2$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 47.2 miles/gallon(MPG)$

The sample size is $n = 250 \ van$

The sample mean is $\= x = 47.0$

The sample standard deviation is $\sigma = 1.9$

The level of significance is $\alpha = 0.02$

Given that the value which the manufacturer gave the automobile is 47.2 and it is believed that this is not correct, then

The Null Hypothesis is

$H_o : \mu = 47.2$

The alternative Hypothesis is

$H_a : \mu \ne 47.2$

The test statistics can be mathematically evaluated as

$t = \frac{\= x- \mu}{\frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{\= 47- 47.2}{\frac{1.9 }{\sqrt{250} } }$

$t = -1.7$

7 0

2 years ago

The Cooking Club made some pies to sell during lunch to raise money for an end-of-year banquet. The cafeteria contributed three

Alex73 [517]

7x13=91 meaning 13 pies were made in total. Since the cafeteria contributed 3 we can subtract 3 from 13. Ultimately meaning that the club contributed 10 pies.

The answer is 10.

3 0

3 years ago

What is the slope of 5,4 and 5,2

stellarik [79]

Answer:

5,4 = 1.25 . 5,2 = 2.5

Step-by-step explanation: to find the slope you divide the two number given or use a graph and plot the points, and divide!

7 0

3 years ago