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3 years ago

1. Mrs. Verner's class has

Mathematics

1 answer:

Gemiola [76]3 years ago

4 0

Answer:

46.7%

Step-by-step explanation:

Given:

Total number of students in Mrs. Verner's class = 15

Number of girls = 8

To find: percentage are boys

Solution:

Percentage of boys = ( Number of boys / Total number of students ) × 100

Number of boys = Total number of students - Number of girls = 15 - 8 = 7

So,

Percentage of boys = × 100 = 46.7%

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Suppose the height of the pyramid is 20 yards. What is the pyramid's volume?

sp2606 [1]

B would be the correct answer if right mark me Brainly

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3 years ago

Americans consume about 13,150,000,000 gallons of carbonated drinks each year. Express this number in scientific notation.

Furkat [3]

The answer is b hope this helps

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4 years ago

12. F(x) = 4x squared

Ymorist [56]

Answer:

y-intercept: $y=0$

axis of symmetry: $x=0$

vertex: $(0,0)$

Step-by-step explanation:

To find the y-intercept, set x = 0 and solve for y.

I am assuming f(x) = y

$y=4x^2$

$y=4(0)^2$

$y=0$

The y-intercept of the equation is y = 0.

Now, for the axis of symmetry, you need the equation $x=\frac{-b}{2a}$

In an equation.. $y=ax^2+bx+c$

In this case, there is only an a, so plug in the values into the equation.

$x=\frac{0}{2(4)}$

$x=0$

The axis of symmetry is x = 0.

To find the vertex, change the format of the equation from standard form to vertex form.

Vertex form: $y=a(x-h)^2+k$

The vertex is $(h,k)$

$y=4x^2 = 4(x+0)^2+0$

$(h,k)=(0,0)$

The vertex in this case is (0,0).

Graphing makes things a lot easier. If you can graph it, all you have to do is look at the graph and the answers are all there!

Hope this helped you!

6 0

3 years ago

Which of the following are arithmetic sequences?

liq [111]

Answer:

its option B

Step-by-step explanation:

its the only one in its correct multiplication order

4 0

3 years ago

The volume of a sphere is 904.32 mm^3. What is the approximate volume of a cone that has the same height and circular base with

kramer

Answer:

$V_c=452.16\ mm^3$

Step-by-step explanation:

Given that,

The volume of a sphere is 904.32 mm³.

The volume of a cone that has the same height and circular base with the same diameter is:

$V_c=\dfrac{1}{3}\pi r^2 \times 2r=\dfrac{2}{3}\pi r^3$

The volume of a sphere with the same radius is:

$V_s=\dfrac{4}{3}\pi r^3=2\times \dfrac{2}{3}\pi r^3$

So, the volume of sphere is :

$V_c=\dfrac{V_s}{2}\\\\V_c=\dfrac{904.32 }{2}\\\\V_c=452.16\ mm^3$

So, the volume of the cone is $452.16\ mm^3$ .

4 0

3 years ago