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weeeeeb [17]
3 years ago
7

Bob has a bag full of dimes and quarters.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

x+y=20

.10x+.25y=3.80

Step-by-step explanation:

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Researchers studying two populations of wolves conducted a two-sample tt-test for the difference in means to investigate whether
Stells [14]

Answer:

A. Assuming that the mean weights of wolves in the populations are equal, the probability of obtaining a test statistic that is greater than 2.771 or less than −2.771 is 0.01.

Step-by-step explanation:

5 0
3 years ago
Find the area of the trapezoid.<br> Answer options: 8sqrt2, 4sqrt3, 12.0, 16sqrt2
Elis [28]

Answer:

=  8sqrt2

Step-by-step explanation:

Area of a trapezium is given by the formula;

1/2(a+b)h ;

Where a and b are the parallel sides and h is the perpendicular height.

a = 3 cm, b= 5 cm

To get; h, we use the Pythagoras theorem;

h² = 3² - 1²

   h² = 8

h = √8

  = √4√2

 = 2√2

Thus;

Area = 1/2(3 +5) 2√2

         = 1/2 ×8 × 2√2

       <u>  = 8√2 cm² or  8sqrt2 cm²</u>

8 0
3 years ago
Write and evaluate the expression. Then, complete the statements. Ten less than the quotient of thirty and a number Evaluate whe
Artyom0805 [142]

Answer:

expression:  (30/t) - 10

evaluation:  30/2 - 10 = 5

Step-by-step explanation:

8 0
3 years ago
Evaluate x+x-x for x=4
sattari [20]

Answer:

4

4+4-4=4 im not sure actually D:

4 0
3 years ago
What is the area?<br> 5 yd<br> 2 yd<br> 10 yd<br> square yards
levacccp [35]

Answer:

The area is always placed in square so the correct answer is square yards.

8 0
3 years ago
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