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Ilya [14]
3 years ago
14

−13.9+ 12.8b =−13.3 Please need help.

Mathematics
2 answers:
Masteriza [31]3 years ago
6 0

Answer:

Step-by-step explanation:

Dominik [7]3 years ago
5 0

Answer:

b=  =64 /3   =0.046875

Step-by-step explanation:

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The number of gnats G(x), in millions, in a certain area depends on the May rainfall x, in inches. That relationship can be expr
puteri [66]

Answer:

9 inches of rainfall produces the maximum number of gnats.

Step-by-step explanation:

Given : G(x) = - x^2 + 18x

To Find :How many inches of rainfall produces the maximum number of gnats?

Solution:

G(x) = - x^2 + 18x

G(x) =The number of gnats in millions.

x denotes the length of rainfall

To Find the maximum length find the mid point of zeroes .Since parabolas are symmetrical, the x value of the max falls 1/2 way between the zeros.

0= - x^2 + 18x

0= x^2-18x

0= x(x-18)

So, x = 0 , x= 18

Now Formula of midpoint : x=\frac{x_1+x_2}{2}

x=\frac{0+18}{2}

x=9

Hence 9 inches of rainfall produces the maximum number of gnats.

8 0
3 years ago
If you were to roll the dice one time what is the probability it will NOT land on a 2?
Nikitich [7]

Answer:

5 / 6

Step-by-step explanation:

Given that:

Probability that a dice rolled once will not land on 2

Probability = required outcome / Total possible outcomes

Total possible outcomes = (1, 2, 3, 4, 5, 6)

Required outcome = 2

P(not land on 2) = 1 - p(land on 2)

P(land on 2) = 1/6

P(not land on 2) = 1 - 1/6

P(not land on 2) = 5/6

7 0
3 years ago
What is 3 4/6 - 2 3/6
tino4ka555 [31]
The answer is 1 1/6.
Hope it was helpful :)
4 0
3 years ago
Read 2 more answers
PLEASE HELP WITH #14 AND #7 PLEASE A.S.A.P !!!
kodGreya [7K]

Answer:

7.) 16.7

Step-by-step explanation:

7). First you have to find the length of the line with the triangle that is at a 90 angle with the longest side of the triangle

Using the pythagrorem theorem a² + b² = c²

4² + b² = 5²

b² = 5² - 4²

b² = 25 - 16

b² = 9

√b² =√9

b = 3

next you do the same thing to find the missing segment of the longest side

3² + b² = 13²

b² = 169 - 9

b² = 160

b = √160 or  ≈ 12.7

12.7 + 4 = 16.7

so 16.7 is the length of that side


3 0
4 years ago
Solve x3= 27.<br> A = 13<br> B. x= 5.2<br> C. x=3<br> D. x=9
scoray [572]

Answer:

x³=27

cuberoot√x³=cuberoot of 27

x=3

3 0
3 years ago
Read 2 more answers
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