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3 years ago

PLEASE HELP!!! I will give brainliest answer!!! Find the volume and surface area of these.

Mathematics

1 answer:

k0ka [10]3 years ago

4 0

Answer:

(I only have the answers for 3 and 4) 3. Volume: 192 Surface Area: 16 4. Volume: 1,200 Surface Area: 100

Step-by-step explanation:

3. Volume: 4 x 4 = 16 x 12 = 192 Surface Area: 4 x 4 = 16 4. Volume: 10 x 10 = 100 x 12 = 1,200 Surface Area: 10 x 10 = 100

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Vasco needs to know the area of the four-pointed star

Rama09 [41]

Answer:

Step-by-step explanation:

Find the area of the base

The base is a square.

The formula is Area = s^2

s = 1.5

Area = 1.5^2

Area = 2.25 sq cm.

Area of 1 triangle

h = 2.4

b = 1.5

Area = 1/2 * b * h

Area = 1/2 * 1.5 * 2.4

Area = 1.8 cm^2

Area of 4 triangles

Area = 4 * area of 1 triangle

Area = 4 * 1.8

Area = 7.2

Total Area = 2.25 + 7.2 = 9.45 cm^2

7 0

3 years ago

What is 3/4x + 2 + 3x - 1/2

DaniilM [7]

Answer:

Step-by-step explanation:

combine like terms

3/4x+3x and 2-1/2

3.75x + 1.5

7 0

3 years ago

Given that f(x) = x2 − 4x − 3 and g(x) = the quantity of x plus three, over four, solve for f(g(x)) when x = 9.

eimsori [14]

Hello! To find the composition of functions we want to take all the x values in f(x) and replace them with g(x). Then to solve for a specific value, we plug in that value for x. Let's look at the steps below
$f(x)=x^{2} -4x-3$
$g(x)=\frac{x+3}{4}$

So we find
$f(g(x))=f(g(9))=(\frac{9+3}{4})^2 - 4(\frac{9+3}{4})-3$
$=3^2 - 4(3)-3$
$= 9-12-3=-6$
Now we want to find the solution when x is 9 so we plug in a 9 whenever we see an x

7 0

3 years ago

Which of the following is equivalent to log base(25) 125?

Scilla [17]

The solution to the problem is as follows:

x = log (25) (125)

125 = 25^x

log 125 = x log 25
<span>
x = 3/2
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

3 0

4 years ago

Read 2 more answers

A segment has endpoints A (-1, 1) and B (8, 4) . If the segment is divided into four equal parts, the coordinates of the point c

riadik2000 [5.3K]

Line is divided into 4 equal parts.

we have to find a point which is closest to point A.

So that means required point P(x,y) is at 1 unit away from A(-1,1) and 3 unit away from B(8,4)

Now we just need to use section formula to get the coordinate of required point using m1=1 and m2=3

$\left ( \frac{m_1x_2+m_2x_1}{m_1+m_2} , \frac{m_1y_2+m_2y_1}{m_1+m_2} \right )$