What did the teacher say to the vampire when he failed his math test?

Answer:

We just figure out what 3/4 of 20 is and it is 15 so 15 pens!

Step-by-step explanation:

Answer:

13 months, 49 cms

Explanation:

For Sasha, multiply 3 and 13 together for the growth per month. You should get 39, then add the 10 cm Sasha already has. The sum is 49.

For Maria, multiply 13 and 1 for the growth per month. You should get 13, then add the 36 Maria already has. The sum is also 49.

Hope this helps!

Answer:

x=-10, y=-20

Step-by-step explanation:

first you substiture the y in the second equation with the first

x-2x=10

then solve

1x-2x=-1

-x=10

multiply both sides by a negative to make the varible a

positive

x=-10

now we substitue the x in the first equation with -10

y=2(-10)

y=-20

Answer:

Slope = 4/3x; y-intercept = -1

Step-by-step explanation:

y + 1 = 4/3x

You have to write this equation in slope-intercept form (solve for y) if you want to find the slope and y-intercept

y + 1 = 4/3x

Subtract one from both sides

y + 1 - 1 = 4/3x - 1

y = 4/3x - 1

Now that we have the equation, you can now find the slope and y-intercept

y = mx + b; m is the slope and b is the y-intercept

So for y = 4/3x - 1, the slope is 4/3x and the y-intercept is -1

The shape that can be rotated to create a sphere is the circle (option C).

A sphere is a three-dimensional object with all points equidistant from its center. When a circle is rotated about its center axis, it creates a three-dimensional shape that perfectly matches the definition of a sphere.

Let's consider the other options and why they cannot be rotated to form a sphere:

A. Triangle: A triangle is a two-dimensional shape with straight sides. Rotating a triangle around any axis would not result in a three-dimensional shape with all points equidistant from its center, which is the defining characteristic of a sphere.

B. Square: Similarly, a square is a two-dimensional shape with straight sides. Rotating a square around any axis would not create a sphere, as it would still retain its flat, planar nature.

D. Ellipse: An ellipse is a two-dimensional shape resembling a squashed or stretched circle. Rotating an ellipse would not result in a sphere, as it would still retain its elliptical shape.

Therefore, the shape that can be rotated to create a sphere is the circle (option C) due to its symmetrical and curved nature.

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Answer: (3,5)

Step-by-step explanation:

Answer:

It is the quarter fourth of the elevation  

Step-by-step explanation:

The meaning of elevations is a high above meaning level

Answer:

Step-by-step explanation:

The mean is just the arithmetic average, the sum of numbers divided the number of terms.

m=(-32.6+24.7-8.3+19.1-8.4)/5

m=-5.5/5

m=-1.1

Answer:

134/5

Step-by-step explanation:

First you do 26 times 5 which is 130. And then you add 4, which is equal to 134/5

Answer:

Area of Trapezium

Step-by-step explanation:

1/2 ( a + b ) h

hope it helps!

Answer:

4

Step-by-step explanation:

This expression is a difference of squares.

(√3 + i)(√3 - i) = (√3)²-(i)², which is

3 - (-1)

= 3 + 1

= 4

expand by distributing

2x-8+5x+15

combine like terms to simplify

7x+7

Answer: D. 20

Step-by-step explanation:

(4/5)(25/1)

= 100/5

=20

Answer: 7.8902297e+17

Step-by-step explanation:

Answer:

7.8902297e+17

Step-by-step explanation:

What is 100343242 x 7863239792= 7.8902297e+17

(hope this helps can i plz have brainlist :D hehe)

Answer:

edwin 14, gary 20

Step-by-step explanation:

Answer:

1st time: 50% chance or 8/16 chance

2nd time: 46% chance or 7/15

I can try again if its wrong

Answer:

7/30

Step-by-step explanation:

8/16 that she picks a red cube.

7/15 that she picks another red cube after keeping the first red cube.

multiply 8/16 (1/2) times 7/15 to get 7/30 as your final answer

Answer:

35 students per teacher

Step-by-step explanation:

Answer:

35 students per teacher

Step-by-step explanation:

Divide 70 and 2

70/2=35

Answer:

I think m is the length of ABCD Square

Answer:

65558 карочедавай ×××××××

Answer:

-3.3

Step-by-step explanation: your welcome!(:

Step-by-step explanation:

3=j

so 36(j) now divide that 36 divided 3 = 12

so 12=j

(This was kind of confusing but this is the best I can give you!)

Answer:

12

Step-by-step explanation:

Answer:

wheres the graph? thats what we need

Step-by-step explanation:

1. for every 4 APPLES there are 3 ORANGES

2. The ratio of ORANGES, to BANANAS is 1:2 / 3:6

3. The ratio of APPLES to BANANAS is 4 to 6

4. For every 1 orange, there are 2 bananas.

Hope this helped! :))

Answer: D

Step-by-step explanation:

Answer:

3(3x + 2y) and 9x + 6y

Step-by-step explanation:

3(x + 3y + 2x - y)

= 3 (x + 2x) + (3y - y)

= 3 (3x + 2y)

= (3 • 3x) + ( 3 • 2y)

= 9x + 6y

Answer:

C) twice the radius

Step-by-step explanation:

the radius is half the diameter

Answer:

b= (2a+11)/5

Step-by-step explanation:

5x + 2y = 9

2y=9-5x

y= 9/2 - 5x/2

slope, m1= -5/2

for perpendicularity, m1 × m2 = -1

slope for QR= m2=

[tex] = - 1 \div \frac{ - 5}{2} = - 1 \times \frac{2}{ - 5} = \frac{ - 2}{ - 5} = \frac{2}{5} [/tex]

m2 is 2/5

[tex]qr = \frac{b - 3}{a - 2} [/tex]

[tex] \frac{2}{5} = \frac{b - 3}{a - 2} [/tex]

5(b-3)=2(a-2)

5b-15=2a-4

5b=2a-4+15

5b= 2a+11

[tex]b = \frac{2a + 11}{5} [/tex]

An expression for b in terms of a is b = (2a + 11)/5.

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given an equation of a line 5x + 2y = 9 ⇒ 2y = - 5x + 9 ⇒ y = (-5/2)x + 9/2.

So, the slope of the line parallel to QR is the slope negative reciprocal of (-5/2) which is (2/5).

We know slope m = (b - 3)/(a - 2).

∴ (2/5) = (b - 3).(a - 2).

2(a - 2) = 5(b - 3).

2a - 4 = 5b - 15.

2a + 11 = 5b.

b = (2a + 11)/5.

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Answer:

The slope is 1/4 so the slope intercept form is y=1/4+3

Step-by-step explanation:

To find the slope the easiest way from looking at a graph is just to find the rise over run. From looking at the graph we can see that the next point from 0,3 is 4,4. The y here is increased by 1, which means the rise is 1. The x is increased by 4 so the run is 4. From putting rise (1) over run (4) the slope is 1/4. The formula for slope intercept is y=mx+b. m is slope so we substitue that for 1/4 so now we have y=1/4x+b. Then the b is the y intercept, or, at what point the line crosses the y line. Which in this case is 0,3 so the y intercept would be 3 because that is what height it crosses the y line.

Answer:

10

Step-by-step explanation:

When you find the distance, you just add both of the numbers as if they were in absolute value 5+|-5|

so then since the x values are the same, you would go up/down 10 spaces on the Y-axis

Answer:

10 units

Step-by-step explanation:

Use the distance formula:

[tex]\sqrt{ (x_{2} - x_{1} )^2 -(y_{2} - y_{1} )^2[/tex]

Plug in values:

[tex]\sqrt{ (-5-5 )^2 -(2-2 )^2[/tex]

[tex]\sqrt 100[/tex]

=10 units