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4 years ago

What type of polyhedra is this ?????

Mathematics

1 answer:

eimsori [14]4 years ago

6 0

Answer: Cube

Its faces are all squares

Step by step:

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Kate decides to replace all the lights in her college apartment with energy saving light bulbs beginning this month. The packagi

tatyana61 [14]

Answer:

Kate's electric bill will be $9 for this month for bulb use only.

Step-by-step explanation:

Given:

Electricity bill lass month from bulb use = $12

Using new bulbs percent decrease in electricity = 25%

We need to find this month electric bill for bulb use.

Solution:

First we will find the reduction in bill after using new bulbs.

reduction in bill after using new bulbs can be calculated by percent decrease in electricity using new bulb multiplied by last month Electricity bill from bulb use only.

framing in equation form we get;

reduction in bill after using new bulbs = $\frac{25}{100}\times 12 =\$3$

Now we will find this month electric bill for bulb use only.

this month electric bill for bulb use only can be calculated by subtracting reduction in bill after using new bulbs from last month electric bill for bulb use only.

framing in equation form we get;

this month electric bill for bulb use only = $\$12-\$3=\$9$

Hence Kate's electric bill will be $9 for this month for bulb use only.

3 0

3 years ago

Due to delays, a company had to extend a project from 109 days to 123 days. What was the percentage increase in time to complete

Bumek [7]

Answer:

1% or 1.1%

I'm 60% sure

Step-by-step explanation:

So what i did was divide 123 by 109

6 0

3 years ago

Find the area of the shaded portion in the square. Show all work for full credit.

kumpel [21]

Well, what I would do [not sure if it's the correct way], is use the white area as a sector of a circle. The top right of the box is the center of the circle, so the radius is 6.
Then, by the white portion being one quarter of the circle (90° out of 360°), I could calculate the that pink shaded region = the total square (6×6) minus the white sector.
So area (A) of white sector (s): A(s) = 1/4×pi×r^2
$A(s) = \frac{\pi {r}^{2} }{4} = \frac{\pi \times {6}^{2} }{4} \\ A(s) = \frac{36\pi}{4} = \frac{9\pi}{1} = 9x3.142 \\ A(s) = 28.27$
36 - 28.27 = 7.73

6 0

3 years ago

Read 2 more answers

I dont understand this question. I need help!!!!!!!

Lisa [10]

Answer:

Step-by-step explanation:

just look at the segment in common

25×2=50

8 0

3 years ago

Select the number that completes the sentence. 20 is 1/10 of

Hatshy [7]

Answer:

the answer is 200

Step-by-step explanation:

We can write 1/10 of 200 in the form of equation as follows:

\frac{1}{10} * 200 = x

Where x represents that number we want to find.

so the answer is 20

7 0

3 years ago

Read 2 more answers

What type of polyhedra is this ?????​

What type of polyhedra is this ?????