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kolbaska11 [484]
3 years ago
8

There are 10 girls and 5 boys in Ms. Sander's class. Each day, she randomly asks one student to take attendance. In 180 school d

ays, which is the best prediction for the number of times that the student will be a girl?
Mathematics
1 answer:
kvv77 [185]3 years ago
7 0

Answer:

120

Step-by-step explanation:

The probability of a girl being picked one day = 10/15 = 2/3

Total number of days = 180

Therefore, the nunber of times it will be a girl = 2/3 x 180 = 2 x 60 = 120

Hope this helps

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Natalka [10]

Answer:

8) Parallelogram.

10) Point W.

Step-by-step explanation:

8) Give another name of plane V.

As shown the plane represents A flat shape with 4 straight sides where opposite sides are parallel and also opposite sides are equal in length.

So, plane V represents parallelogram

10) Name a point that is not coplanar with R, S and T.

Coplanar points are the points which all lie in the same plane.

So, as shown:

R, S and T are coplanar points, they all lie in the plane V

So, the point which doesn't lie in the plane V is the point W

So, <u>the point W</u> is not coplanar with R, S and T.

5 0
3 years ago
he graph of a system of equations with the same slope will have no solutions. sometimes, always or never
Brilliant_brown [7]

Just did the test. It is not "Never". It is ALWAYS!!! If an equation has no solutions (like one with the same slope) THERE WILL BE NO SOLUTIONS!!!!!

3 0
3 years ago
What are the transformations? f left parenthesis x right parenthesis space equals negative 3 left parenthesis x minus 4 right pa
Phoenix [80]

Answer:

The graph of the functions moves 4 units right, 3 units up stretches vertically by a factor of 3 and reflects horizontally.

Step-by-step explanation:

In order to find the function transformations, we must first determine what the base function is:

f(x)=x^{2}

Next, we need to determine how the function is being affected by the transformations.

When the graph of the function moves 4 units right, we mus subtract 4 units from x, so the function looks like this then:

f(x)=(x-4)^{2}

If we need to stretch it vertically by a factor of 3, we need to multiply the function by 3:

f(x)=3(x-4)^{2}

If we need to reflect it horizontally, then we turn the 3 into a negative so we get:

f(x)=-3(x-4)^{2}

And finally, if we wanted to move the graph up by 3 units, then we need to add 3 units to the whole graph, so we get:

f(x)=-3(x-4)^{2}+3

in the attached picture you will be able to see the graph of the base function with all the transformations.

8 0
3 years ago
HELPPPPP ! which equation can be used to find the measure of angle LJK?
bixtya [17]
I hope this helped you.

8 0
3 years ago
The solution for 7(5x+9)=12-(x+9) and simplified​
Charra [1.4K]

Answer:

x= -5/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7(5x+9)=12−(x+9)

7(5x+9)=12+−1(x+9)(Distribute the Negative Sign)

7(5x+9)=12+−1x+(−1)(9)

7(5x+9)=12+−x+−9

(7)(5x)+(7)(9)=12+−x+−9(Distribute)

35x+63=12+−x+−9

35x+63=(−x)+(12+−9)(Combine Like Terms)

35x+63=−x+3

35x+63=−x+3

Step 2: Add x to both sides.

35x+63+x=−x+3+x

36x+63=3

Step 3: Subtract 63 from both sides.

36x+63−63=3−63

36x=−60

Step 4: Divide both sides by 36.

36x/36 and -60/36

x= -5/3

4 0
4 years ago
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