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3 years ago

Help!!!!! Plzzzz

Mathematics

1 answer:

forsale [732]3 years ago

5 0

Answer:

12^2 + 16^2 = x^2

144 + 256 = x^2

x =20

C is correct.

Let me know if this helps!

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Through: (3, 5) parallel to y=3x-1

marysya [2.9K]

Answer: y = 3x - 4 will be the parallel line to the line y= 3x -1

Step-by-step explanation:

Parallel lines have the same slope but different y intercepts, so using the equation given , use the formula y=mx +b where m is the slope and b is the

y - intercept ,and input the x and y coordinate to solve for b. Input the same slope into the formula because they will have the same slope.

5= 3(3) + b

5 = 9 + b

-9 -9

b = -4

Since the y intercept is negative 4, the equation will be y = 3x -4

3 0

3 years ago

Read 2 more answers

In a certain college, 33% of the math majors belong to ethnic minorities. If 7 students are selected at random from the math maj

Digiron [165]

Answer: a) 0.996, b) 0.253, c) 0.02.

Step-by-step explanation:

Since we have given that

Probability of success = Probability of the math majors belong to ethnic minorities = 33% = 0.33 =p

Probability of failure = q = 1-0.33 = 0.67

Number of students selected = 7

a) No more than 5 belong to an ethnic minority

So, using "binomial distribution", we get that

$P(X\leq 5)=\sum^5 _{x=0} ^5C_x(0.33)^x(0.67)^{5-x}=0.996$

b. Exactly three of them belong to an ethnic minority

So, it becomes,

$P(X=3)=^7C_3(0.33)^3(0.67)^4=0.253$

c. None of them belong to an ethnic minority

$P(X=0)=^7C_0(0.33)^0(0.67)^7=0.02$

Hence, a) 0.996, b) 0.253, c) 0.02.

8 0

3 years ago

All the following are equivalent except d=rt dr=r d/t=r d/r=t

Andreas93 [3]

Answer:

dr=r is not equivalent

8 0

3 years ago

The difference of a number and 8 is the same as 34 less the number. find the number.

Dovator [93]

Let the number be x.

8 - x = x -34

2x = 8 + 34

2x = 42

x = 21

Answer: The number is 21.

4 0

3 years ago

Mrs.Rook's class was folding paper for a project. Which shape can be folded on the line to show symmetry?

QveST [7]

Is there a picture to show the shape that she is folding?

3 0

4 years ago

Read 2 more answers