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Angelina_Jolie [31]
3 years ago
7

Plz help me with this

Mathematics
2 answers:
rjkz [21]3 years ago
8 0
12*2+400*2=824
the answer is 824
Afina-wow [57]3 years ago
3 0
824 just add all the sides so 12+12+400+400=824 and in simpler form w2+l2
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This question is about fractions,decimals and percentage​
AnnyKZ [126]

Answer:

3/5 , 0.6, 60%

3/4 , 0.75, 75%

4/5 , 0.80, 80%

9/10 , 0.9, 90%

and the last one should be 2/2 , 1. , 100%

3 0
2 years ago
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Find the perimeter of the isosceles triangle in simplest radical form.
neonofarm [45]

9514 1404 393

Answer:

  6 +8√5

Step-by-step explanation:

The leg length can be reduced to simpler form:

  3 +√45 = 3 +√(3²·5) = 3 +3√5

The perimeter is the sum of the side lengths, so is ...

  (3 +3√5) +(3 +3√5) +(2√5) = 6 +8√5 . . . perimeter

4 0
3 years ago
​A research report describing the results from a repeated-measures t test states that "t(22) = 1.71, p > .05."
Aleonysh [2.5K]

Answer:

b) Fail to reject the null hypothesis with a sample of n = 23 participants

Step-by-step explanation:

Hello!

A "Repeated-measures t-test" is also known as "paired sample t-test" In this type of test you have only one sample and you measure two variables of interest to each experimental unit. Since both study variables are measured in the same units they are said to be dependent.

The most common example of this type of test is the "before-after treatment" experiment.

The degrees of freedom of this experiment are

, so if the test was conducted under a t₂₂ distribution, then the sample size was n= 23 experimental units. Remember if you use the p-value approach, to make a decision over the null hypothesis you have to compare it to the level of significance following the decision rule:

If the p-value ≤ α, you reject the null hypothesis.

If the p-value > α, you do not reject the null hypothesis.

In this example is specified that the p-value is greater than the level of significance, then the decision is to not reject the null hypothesis.

With all this in consideration, the correct option is b)

U hope you have a SUPER day!

6 0
3 years ago
Triangle V P M. Angle V is 52 degrees, angle P is 78 degrees, angle M is x degrees. What is the measure of AngleM?
Phantasy [73]

Answer:

The answer is 50

Step-by-step explanation:

Got it right on edge

3 0
3 years ago
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What is the height, in centimeters, of a rectangular prism that is 80 centimeters wide, 40 centimeters long, and has a volume of
Rainbow [258]

Answer:

The answer to your question is the letter E. 50

Step-by-step explanation:

Data

height = ?

Width = 80 cm

Length = 40 cm

Volume = 160000 cm³

Formula

Volume of a rectangular prism = Width x length x height

Substitution

                          160000 = 80 x 40 x height

Solve for height

                           height = 160000 / 80 x 40

Simplification

                           height = 160000/ 3200

Result

                           height = 50 cm              

4 0
3 years ago
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