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slega [8]
3 years ago
9

O Watch help video

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
4 0

Answer:

325+250= 575

Step-by-step explanation:

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In order to check for regional bias in a widely used standardized test, researchers checked for a difference in the means of ran
lbvjy [14]

Answer:

p-value = 0.369

Step-by-step explanation:

Test of hypothesis which has its the alternative hypothesis as Ha:μ1−μ2≠0 is a two tailed test. Therefore, P-value for a two-tailed test with test statistic t≈−0.90 and the number of degrees of freedom = 208

P-value = 2 X P( t(208) < - 0.90)  

    = 2 X 0.1846

    = 0.369  

6 0
4 years ago
How do you convert a radical expression to a rational exponent and vice versa?
krok68 [10]

Take  the expression  x^2/3  which has an exponent  of 2/3.  The top of the fraction refers to the power  - that is  x^2 ( x squared). and the 3 indicates  a cubic root.

So in radical form  it is  ∛(x^2)

Converting radical to exponent  an example would be

∛(x^5)   =  x^(5/3)    

5 0
4 years ago
The height of a triangle is 2 less than 3 times it's base. If the area of the triangle is 48cm squares determine the base and he
Artyom0805 [142]
<h3>answer</h3>

we assume the height of the triangle is x,

so the base length will be x+4

the triangle area will be area = 1/2 ( base * height)

48 = 1/2 (x + 4) x

96 = x2 + 4x

96 + 4 = x2 + 4x + 4

100 = (x + 2)2

10 = x + 2 (for the square 100, we ignore the -10, minus is meaningless in length )

x = 8

x + 4 = 8 + 4 = 12

so the height for the triangle is 8 unit, base is 12 unit,

brainliest ♥️

8 0
3 years ago
For 14a-14d,tell you which expressions require you to rename mixed numbers before you can subtract.Find each difference .write e
Vlada [557]

multiply the whole number with the denominator then add the numerator over the denominator then find the common multiple.

6 0
3 years ago
Find the measure of angle COD.
8090 [49]

Answer:

45 degrees

Step-by-step explanation:

The value of COD is the angle between C and D

The value of C is 30

The value of D is 115

The difference is 115 -30 = 85

6 0
3 years ago
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