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kodGreya [7K]
2 years ago
13

Need help on this question

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
8 0
A=-7 B=0 i can show how to slove
blondinia [14]2 years ago
7 0

Answer:

Hi... Your answer is...

A= -7

B=0

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Pls help (I attached an image that explains the question)
masha68 [24]
I think it’s c or b but I’m positive it’s b
5 0
2 years ago
Read 2 more answers
Suppose a couple planned to have three children. Let X be the number of girls the couple has.
sesenic [268]

Answer:

a) {GGG, GGB, GBG, BGG, BBG, BGB, GBB, BBB}

b) {0,1,2,3}

c)

P(X=2) = \dfrac{3}{8}

d)

P(\text{3 boys}) = \dfrac{1}{8}

Step-by-step explanation:

We are given the following in the question:

Suppose a couple planned to have three children. Let X be the number of girls the couple has.

a) possible arrangements of girls and boys

Sample space:

{GGG, GGB, GBG, BGG, BBG, BGB, GBB, BBB}

b) sample space for X

X is the number of girls couple has. Thus, X can take the values 0, 1, 2 and 3 that is 0 girls, 1 girl, 2 girls and three girls from three children.

Sample space: {0,1,2,3}

c) probability that X=2

P(X=2)

That is we have to compute the probability that couple has exactly two girls.

\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}

Favorable outcome: {GGB, GBG, BGG}

P(X=2) =\dfrac{3}{8}

d) probability that the couple have three boys.

Favorable outcome: {BBB}

P(BBB) = \dfrac{1}{8}

8 0
3 years ago
I need to know x . if you could also explain that would be nice
defon

Answer:

x = 7.5

Step-by-step explanation:

Since the midsegment and the third segment of the triangle are parallel to each other, therefore,

\frac{8 + 10}{8} = \frac{6 + x}{6}

\frac{18}{8} = \frac{6 + x}{6}

\frac{9}{4} = \frac{6 + x}{6}

Cross multiply

9*6 = 4(6 + x)

54 = 24 + 4x

Subtract 24 from each side

54 - 24 = 4x

30 = 4x

Divide both sides by 4

30/4 = x

7.5 = x

x = 7.5

4 0
2 years ago
What is the solution to the system of equations below? y=-3x-9 and y=1/3x-39
Westkost [7]

Answer:

ddxsxssxsxsszxzxsxsxsxs

Step-by-step explanation:

d

8 0
3 years ago
I need help please :)
bezimeni [28]

Answer:

[        10000(2)^{-n}       ]    where n is the number of hours.

Because the beginning will 10000/2 = 50000, then it keeps double the dividing the time.

6 0
2 years ago
Read 2 more answers
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