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FrozenT [24]
4 years ago
12

HELP PLEASE HELP!!!!! 20 POINTS!!!

Mathematics
2 answers:
ivann1987 [24]4 years ago
3 0
The answer should be C. By combining like terms you can find the answer. 1.75a+2.75a = 4.5a
2.25b + 1.75b = 4b
2.25c + 1.25c = 3.5c
Ivahew [28]4 years ago
3 0

Answer:

The answer is C. I just took the test

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Calculate the value of k=xy​
makkiz [27]

Answer:

x times y

Step-by-step explanation:

k is the value of x times y

7 0
3 years ago
Describe the shape resulting from the cross section of the shape.
Ronch [10]

Answer:

A tilted circle, or an oval.

Step-by-step explanation:

Just to let you know, when I studied cross sections, they were the most annoying things I have ever studied in math, so here is my go at this:

Although I am not sure, I think the cross section is an oval. This is because the plane that cuts the cone is a little tilted, providing an oval (or a tilted circle.)

Hope that this helps you!

7 0
3 years ago
Round this number to two significant figures. 8,468
Jlenok [28]
8500

10^3 x 8.5 = 8500


8 0
4 years ago
Read 2 more answers
What is the area of this figure?
Alborosie

Answer:

146

Step-by-step explanation:

Hey there to find the area of this shape we will divide it into 2 shapes first one is a trapezoid and the second one is a triangle. first, we find the area of a trapezoid. to find the area of a trapezoid we use the formula:

        A = \frac{a+b}{2} * h          

in this situation

a = 4

b = 14

h = 10

Now we plug it into the formula which will look like:

       A = \frac{4+14}{2}*10

if we solve it:

4+14 = 18

18/2 = 9

9*10 = 90

so the area of the trapezoid is 90

Now we find the area of triangle. to find the area of a triangle we use the formula:

   A = \frac{1}{2} * b * h

in this situation

b = 14

h = 8 ( because the height of the trapezoid was 10 and the height of both shapes combined is 18 so we do 18 - 10 = 8 )

Now we put the numbers into the formula  which will look like:

    A = \frac{1}{2}*14*8

if we solve it :

14*8 = 112

112*\frac{1}{2} = 56

so the area of the triangle is 56

Now we add the area of both shapes:

56 + 90 = 146

area of the big shape = 146

Have a wonderful day

7 0
3 years ago
Read 2 more answers
7/28 in simplest form
vampirchik [111]
\frac { 7 }{ 28 }

28 is 4 times 7, so we will rewrite it like that.

28=4\cdot 7\\ \\ \frac { 7 }{ 28 } =\frac { 7 }{ 4\cdot 7 }

7 is 7 times 7, so we will rewrite it like that.

\frac { 7 }{ 28 } =\frac { 7 }{ 4\cdot 7 } =\frac { 1\cdot 7 }{ 4\cdot 7 } =\frac { 1 }{ 4 } \cdot \frac { 7 }{ 7 } =\frac { 1 }{ 4 } \cdot 1=\frac { 1 }{ 4 }

So the simplest form is,

\boxed { \frac { 1 }{ 4 }  }
8 0
4 years ago
Read 2 more answers
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