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mylen [45]
3 years ago
6

Solve for x (X-9)(x+5)=8(21)

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0
I think the answer should be x = 10.101326
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Find the lateral area, surface area and volume of the cube
Vika [28.1K]

Answer:

Lateral Area = 13 x 13 x 4 = 676 ft²

Surface area = 13 x 13 x 6 = 1014 ft²

Volume = 13 x 13 x 13 = 2197 ft³

5 0
3 years ago
What’s f(2)=8•(1/2) I’m wondering what the answer is
34kurt
F=2 Let's solve your equation step-by-step.
f
(
2
)
=
8
(
1
2
)
Step 1: Simplify both sides of the equation.
2
f
=
4
Step 2: Divide both sides by 2.
2
f
2
=
4
2
f
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2
7 0
3 years ago
At the local college, a study found that students earned an average of 14 credit hours per semester. A sample of 138 students wa
77julia77 [94]

Answer:

1932 credit hours

Step-by-step explanation:

Create a proportion

credits             credits

----------     =      ----------

students          students

14      ?

---- = -----

1         138

14 times 138

1932 credit hours

6 0
3 years ago
What is the probability that a student randomly selected from a class of 60 students will be a male who has brown hair?
vovikov84 [41]

Answer:

1/6 ( under not enough of other criteria)

Step-by-step explanation:

total of student: 60

1/3 male: 60 x 1/3 = 20

Female = 60 - 20 = 40

1/2 with brown hair: 60 x 1/2 = 30

It seems the answer of 20/60 x 30/60 = 1/3 x 1/2 = 1/6 is the result, but consider the brown hair number is larger than male student (30 vs 20). Therefore there can have the chance of all the boys are brown hair and be chosen, then the probability will become 20/60 = 1/3. While probability result is not a certain result, it only to predict how likely things are to happen.

Therefore I think 1/6 is an answer.

6 0
4 years ago
In predicting test score by hours spent studying, Y with logical and on top equals 6 x plus 40. This means that for every hour s
Musya8 [376]
6 points. Since it’s 6x.
3 0
3 years ago
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