All categories

2 years ago

I only need help with the last one the circle one to be pacific. I need help by tonight so I can get this done.

Mathematics

1 answer:

Degger [83]2 years ago

6 0

Answer:

$V = 997.8 {cm}^{3}$

Step-by-step explanation:

The last one is spherical

The volume of a sphere is given by:

$V= \frac{4}{3} \pi \: {r}^{3}$

From the diagram, the the radius is r=6.2 cm.

We substitute to get:

$V= \frac{4}{3} \times 3.14\: \times {6.2}^{3}$

This evaluate to;

$V = 997.8 {cm}^{3}$

You might be interested in

What principle will amount to $6000 if invested at 5.5% compounded monthly for 10 years?

Tju [1.3M]

Answer:In 10 years, you will have $10,386.46

Step-by-step explanation:

8 0

1 year ago

Jeremy is given the choice between two chocolates, X and Y. Which one should he choose to get the most chocolate possible, and h

inn [45]

Answer:

A. It does not matter. The volumes of X and Y are equivalent.

Step-by-step explanation:

Volume of the pyramid = Base area × Height

For rectangular pyramid X:

Given Height of pyramid = 10cm

Base area = Length × Breadth

Base Area = 6cm×5cm = 30cm²

Volume = 10×30

Volume of the pyramid = 300cm²

For pyramid Y:

Given Height = 10cm

Base area = 1/2 base×height

Base area ,= 1/2 × 7.5×8

Base area = 30cm²

Volume of the triangular pyramid = 10×30 = 300cm³

We can see that the volume of X and Y is the same, therefore the type of chocolate Jeremy chose doesn't matter.

6 0

2 years ago

I need to know how to solve this and what is the question asking

expeople1 [14]

You can reword the equation 6x+y=9 to
Y=6x+9

Then plug-in y=6x+9 into the equation 2x+3y=-5

Plug this 2x+3(6x+9)=-5
2x+18x+27=-5
Then solve it from there

8 0

2 years ago

Which criterion can be used to prove abc and adc are congruent? triangles, abc and acd, are plotted on a grid that share a commo

RUDIKE [14]

The correct answer is option D which is ASA ( Angle - Side - Angle).

<h3>What is congruency?</h3>

If two triangles are congruent, this means they are the same shape and the same size. By definition, all corresponding angles of two congruent triangles are congruent. Additionally, all corresponding sides of two congruent triangles are congruent.

In triangles ABC and ADC,

Angles BCA and DAC are congruent (from the diagram);

Angles BAC and DCA are congruent (from the diagram);

AC is congruent AC (by reflexive property).

So, the triangles ABC and CDA are congruent with the ASA postulate.

ASA (Angle-Side-Angle) postulate states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

Therefore the correct answer is option D which is ASA ( Angle - Side - Angle).

To know more about congruency follow

brainly.com/question/2938476

#SPJ1

4 0

1 year ago

Lance Murdock purchased a wooden statue of a Conquistador for $7,500 to put in his home office 8 years ago. Lance has recently m

Lapatulllka [165]

Answer:

- 5.9%

Step-by-step explanation:

Data provided in the question :

Future value of the amount invested = $4,600

Principle i.e amount of purchase = $7,500

Time, n = 8 years

Now,

let the interest rate be 'i'

using compounding

$4,600 = $7,500 × (1 + i)⁸

0.613 = (1 + i)⁸

1 + i = 0.941

i = -0.059

interest rate = - 5.9%

Here negative sign means loss

3 0

2 years ago