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3 years ago

I need to know the answer to #7

Mathematics

1 answer:

frutty [35]3 years ago

6 0

since its 2 half circles calculate are for a circle would be area = piR^2

the diameter is 100 feet so radius would be 100/2 = 50 feet

using 3.14 for pi you get 50^2 x 3.14 = 7850 square feet for the circle area

rectangle area = l x w = 100 x 212 = 21200

now add them

21200 + 7850 = 29050 square feet

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Help I’m confused on this

Delvig [45]

Add all the numbers:

36 + 10 + 2 + 20 + 26 + 6 = 100

Count the amount of female:

20 + 26 + 6 = 52

Female out of total = 52/100

if you have to simplify, its going to be 13/25

Hope this helped☺☺

6 0

3 years ago

Read 2 more answers

Olivia was baking. The recipe called for seven cups of flour and three cups of sugar.she already put two cups of flour. How many

ANEK [815]

She needs 5 cups of flour and 3 cups of sugar.

8 0

3 years ago

PLEASE HELP!!!!<br> ILL GIVE YOU BRAINLIEST!!!!!!

olchik [2.2K]

answer:

-6 is the answer I think

7 0

3 years ago

The volume of the cylinder is 392 cm cubed work out the length

Alik [6]

Well if you are given the radius, you can solve for it. As the volume of a cylinder is area of the base which is a circle times it height.

B • h = Pi r ^2 • h = 392 cm^3.

H = 392/Pi r^2.

This is the height or length.

8 0

3 years ago

Which is the graph of a quadratic equation that has a negative discriminant?

vovikov84 [41]

Answer:

Here's what I get

Step-by-step explanation:

The formula for a quadratic equation is

ax² + bx + c = 0

The quadratic formula gives the roots:

$x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a} = \dfrac{-b\pm\sqrt{D}}{2a}$

D is the discriminant.

It tells us the number of roots to the equation — the number of times the graph crosses the x-axis.

$D = \begin{cases}\text{positive} & \quad \text{2 real solutions}\\\text{zero} & \quad \text{1 real solution}\\\text{negative} & \quad \text{0 real solutions}\\\end{cases}$

It doesn't matter if the graph opens upwards or downwards.

If D > 0, the graph crosses the x-axis at two points.

If D = 0, the graph touches the x-axis at one point.

If D < 0, the graph never reaches the x-axis.

Your graph must look like one of the two graphs on the right in the Figure below.

5 0

3 years ago