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vodomira [7]
3 years ago
9

Plz helppppp???????????????????

Mathematics
2 answers:
mafiozo [28]3 years ago
5 0

Answer:

4/21

Step-by-step explanation:

21 total computers and only 4 work so 4/21 probablity

lisov135 [29]3 years ago
3 0

Answer:

<em>~ Probability: 4/21 ~</em>

Step-by-step explanation:

1. We can see that the total number of computers would be; 9 + 8 + 4 = <em>21 computers</em>

2. Of these 21 computers, 9 + 8 = 17 of them are not working, either with a virus or just not working

3. That leaves 4 out of the 21 computers working;<em> leaving you with a probability of 4/21 that Bill will choose a computer that works on the first try</em>!

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The amount of money Sarah earns per week is modeled by the function W below where h
zzz [600]

Answer:

416

Step-by-step explanation:

8 0
2 years ago
The triangular pyramid shown is made up of four congruent triangles. The length of the base is 8 inches, and the height of the b
Aneli [31]

Answer:

(B) Talia is correct. The lateral area can be found by approximating one large triangle, which can be found using the expression 4 (one-half (8) (6.9))

Step-by-step explanation:

Base of the Pyramid = 8 Inches

Height of the Triangular Face = 6.9 Inches

In any solid shape, the Lateral surface area is the sum of all sides except its top and bottom bases.

Since the four triangles are congruent:

Lateral Surface Area = 4 X Area of One Triangle

Area of a Triangle = \frac{1}{2}$ X Base X Height

Area of one Triangular Face = \dfrac{1}{2}(8)(6.9)

Therefore:

Lateral Surface Area = 4\left(\dfrac{1}{2}(8)(6.9)\right)

Therefore, Talia is correct.

8 0
3 years ago
Determine the inverse of the function f (x) = 4(x − 3)2 + 2. inverse of f of x is equal to 3 minus the square root of the quanti
Elodia [21]

The inverse of the function f(x)  = 4(x-3)² + 2 is f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

The given function is:

f(x)   =  4(x  - 3)²  +  2

To find the inverse of the function:

Make x as the subject of the formula

4(x-3)^2 = f(x) - 2\\(x-3)^2 = \frac{f(x)-2}{4} \\x - 3 = \sqrt{\frac{f(x)-2}{4} } \\x = \sqrt{\frac{f(x)-2}{4} } + 3

Replace x by f^{-1}(x) and replace f(x) by x

f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

Therefore, the inverse of the function is:

f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

Learn more here: brainly.com/question/17285960

4 0
2 years ago
Can someone please help me on this? thanks!!
tankabanditka [31]

Answer:

store C is the best with .122 per ounce the others are .129 and .135

6 0
2 years ago
Is this pattern a net for the three-dimensional figure?<br> Yes<br> No
adell [148]

Answer:

Yes

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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