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2 years ago

3.Which of the following is not a plane figure?

Mathematics

1 answer:

Galina-37 [17]2 years ago

6 0

Answer:

I'm not sure about the other ones but I'm pretty sure 4 is cube

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Solve the problem and explain the steps taken. There are four students working on a project in math class. Miguel has completed

slamgirl [31]

Answer:

10%

12.5%

13%

19%

Step-by-step explanation:

First write all of the amounts as a percent.

1/8 = 12.5%

13%

.10 = 10%

19%

Then you can order them from least to greatest.

10%, 12.5%, 13%, and then 19%

hope this helps

7 0

2 years ago

A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the

Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

x ----> the original length of the piece of metal

y ----> the original width of the piece of metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

$L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in$

The volume of the box is equal to

$V=(x-10)(y-10)5$

$V=930\ in^3$

$930=(x-10)(y-10)5$

simplify

$186=(x-10)(y-10)$ -----> equation A

Remember that

The piece of metal is 25 in longer than it is wide

$x=y+25$ ----> equation B

substitute equation B in equation A

$186=(y+25-10)(y-10)$

solve for y

$186=(y+15)(y-10)\\186=y^2-10y+15y-150\\y^2+5y-336=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

Find the value of x

$x=16+25=41$

therefore

The original length was 41 inches and the original width was 16 inches

3 0

3 years ago

S(x)= 22x-8 and f(x)= -5. What is s(x) x f(x)?

zloy xaker [14]

-110x+40
You need to use the distributive property for this problem
You multiply 22x times -5 (which is -110x) and -8 times -5 (which is 40) to get -110x+40

6 0

2 years ago

find each unit rate round to the nearest hundredth if necessary on a hundred and $140 for 18 ft squared

Marina86 [1]

Divide both by 18.
<span>140/18=7.78 </span>

<span>So... $7.78 per foot</span>

4 0

3 years ago

How do you find the Slope of a line?

UNO [17]

You find the slope of the line by using the formula $\frac{y2-y1}{x2-x1}$ where x1 and y1 is the first point, and x2 and y2 are the second point.

4 0

2 years ago

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