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3 years ago

I really need help with this question , can someone help me?

Mathematics

1 answer:

Alexxx [7]3 years ago

8 0

I'm too late but here ya go anyway :)

x = 180 - (31 + 40) is the answer.

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Question 14(Multiple Choice Worth 1 points)

Alex_Xolod [135]

Answer:

I think the third one.

Step-by-step explanation:

8 0

3 years ago

Use the drop-down menus to complete the statements.

TiliK225 [7]

Answer:-23

Step-by-step explanation:

6 0

3 years ago

In a certain college, 33% of the physics majors belong to ethnic minorities. Of 8 students are selected at random from the physi

tiny-mole [99]

Answer: 0.0187

Step-by-step explanation:

The binomial distribution formula for probability :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total number of trials and p is the probability of getting success in each trial.

Given : The probability that the physics majors belong to ethnic minorities =0.33

Number of students selected : n= 8

Now, the probability that more than 5 belong to an ethnic minority :-

$P(x>5)=P(6)+P(7)+P(8)\\\\=^8C_6(0.33)^6(0.67)^{2}+^8C_7(0.33)^7(0.67)^{1}+^8C_8(0.33)^8(0.67)^{0}\\\\=(\dfrac{8!}{6!2!})(0.33)^6(0.67)^{2}+(8)(0.33)^7(0.67)^{1}+(0.33)^8(0.67)^{0}\\\\=0.0186577086013\approx0.0187$

Hence, the probability that more than 5 belong to an ethnic minority = 0.0187

7 0

3 years ago

A.B,and C are collinear. AB=5x-19,and BC= 3x+4. Find an expression for AC if B is between A and C.

uysha [10]

Find A <span>if B is between A and C.
</span><span>A.B,and C are collinear so A, B and C are line up in a line</span>

AC = AB + BC

AB=5x-19,and BC= 3x+4 given;

AC = 5x-19 + 3x+4

Simplify

AC = 8x -15

4 0

3 years ago

Can someone help me answer this question

lubasha [3.4K]

Answer:

253.89 pounds

Step-by-step explanation:

$1 = 0.74 pounds

345 * 0.74 = 253.89

$345 = 253.89 pounds

6 0

2 years ago