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Tems11 [23]
3 years ago
12

(

ula1" title="( {8x}^{2} + 4x + 4) - (7x + 9)" alt="( {8x}^{2} + 4x + 4) - (7x + 9)" align="absmiddle" class="latex-formula">
solve​
Mathematics
1 answer:
son4ous [18]3 years ago
4 0

Answer:

8x^{2} -3x-5

Step-by-step explanation:

8x^{2} +4x+4-7x-9

8x^{2} +4x-7x+4-9

8x^{2} -3x-5

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I need help fast thanks
BabaBlast [244]

Answer:

I wanna say its all real numbers

Step-by-step explanation:

3 0
3 years ago
In Vancouver, British Columbia, the probability of rain during a winter day is 0.42, for a spring day is 0.23, for a summer day
nadezda [96]

Answer:

31.82% probability that this day would be a winter day

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening

In this question:

Event A: Rain

Event B: Winter day

Probability of rain:

0.42 of 0.25(winter), 0.23 of 0.25(spring), 0.16 of 0.25(summer) or 0.51 of 0.25(fall).

So

P(A) = 0.42*0.25 + 0.23*0.25 + 0.16*0.25 + 0.51*0.25 = 0.33

Intersection:

Rain on a winter day, which is 0.42 of 0.25. So

P(A \cap B) = 0.42*0.25 = 0.105

If you were told that on a particular day it was raining in Vancouver, what would be the probability that this day would be a winter day?

P(B|A) = \frac{0.105}{0.33} = 0.3182

31.82% probability that this day would be a winter day

6 0
3 years ago
Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percentage change in
Maru [420]

The percentage change in volume from cylinder A to cylinder B; D: 100%

<h3>How to find the percentage change in Volume?</h3>

Formula for Volume of a Cylinder is;

V = πr²h

Thus, volume of Cylinder A is;

V_a = π * 7² * 5

V_a = 245π

Thus, percentage change in volume is;

[245π/(490π - 490π)] * 100%

Percentage change in volume = 100%

Read more about percentage change in volume at; brainly.com/question/9554871

#SPJ1

8 0
2 years ago
Read 2 more answers
Find h.<br> 11 in.<br> h = [?] in<br> in.<br> 14 in.<br> PLEASE OH PLEASE HELP ME IM DESPERATE
Sliva [168]

11^2 = h^2 + ( 14/2)^2

11^2 = h^2 + 7^2

121 = h^2 + 49

h^2 = 121 - 49

h^2 = 72

h = √72

4 0
3 years ago
Solve the equation. Check your solution. −4x − 8x + 17 = 23
Novay_Z [31]
-4x -8x +17 = 23
-12x +17 = 23
-12x=6
x= -0.5
to check plug back in the equation
7 0
3 years ago
Read 2 more answers
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