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3 years ago

10.

Mathematics

1 answer:

astra-53 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

10. To solve for this, use the formula: 180*(n-2)

So, 180(n-2) = 2,340

Once n is solved for, that is the number of sides

11. Use the formula:

[180*(n-2)]/n

(n represents the number of sides)

12. Think of the sum of all interior angles in a quadrilateral

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Please help i have no idea how to do this

Luba_88 [7]

Answer:

I will be answering numbers 3), 4), and 6) (so that you get most of the concept and that you are able to solve the questions by yourself), and also 9).

Step-by-step explanation:

-15/4b+5/6b

So, first find the common denominator of both fractions. 4 times 6 is 24. -15/4b= -90/24b. 5/6b=20/24b. -90/24b+20/24b=-70/24b=-35/24b=-1 11/24.

60m-15(4-8m)+20

What we need to do first is remove the parentheses.

60m-(15*4-15*8m)+20

=60m-60-120m+20.

So, here, we add the numbers without 'm' and the numbers with 'm.' (Always include the sign in front of the number, like in the equation, we include -60 since that's the sign in front of 60.)

60m-60-120m+20

=-60+20=-40

60m-120m=-60m

=-60m-40

9y-15y+12-6y

Like I said before on number 4, we do about the exact same thing (but there are no parentheses to remove, so we skip that step.)

9y-15y+12-6y

=9y-15y-6y

=-12y+12

It is basically the same thing as we did in the previous problems, just in a different way of saying it.

12x+12x+2x+2x+x+9

=28x+9 yards

6 0

3 years ago

Find the surface area and volume of the composite

xenn [34]

Answer:

Step-by-step explanation:

To find the surface area of a composite 3D figure, add the areas of each geometric figure making up the composite 3D figure. To find the volume of a composite 3D figure, draw any necessary planes to view the figure as basic three dimensional figures, then: add basic figure volumes belonging to the composite shape.

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3 years ago

Which steps will generate an expression equivalent to 17(x+5)?<br> MARK BRAINLIEST

bezimeni [28]

Answer:

multiply 17x5=85,85+5=90 so aswer is 90

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I am thinking of a five-digit number where the fifth digit is one-half the fourth digit and one-fourth the third digit. the thir

Natasha_Volkova [10]

solution:

Let the number be ABCDE

>>The second digit is three times the fourth digit<<

So D is 1,2, or 3 and B is 3,6 or 9.

The number is A3C1E, A6C2E, or A9C3E

>>The second digit is ... five more than the fifth digit.<<

That rules out 3 for B, so B is 6 or 9, and D is 2 or 3.

It also tells us that E is 1 or 4, so that B can be 5 more than it.

So the number is A6C21 or A9C34

>>The third digit is ... twice the fourth digit<<

So C is twice D, which is 2 or 3. So C is 4 or 6

So the number is A6421 or A9634

>>The third digit is one-half the first digit

So C is 4 because 6 is too large to be half a digit. And so

A has to be 8 so that C=4 can be half of it.

So the number is 86421.

8 0

3 years ago

Match the transformation of the polynomial function f(x) = 2x3 − x2 − 5x + 3 with the resulting function.

AlekseyPX

Answer:

Parent Function: g(x)=x3

Horizontal Shift: Right 0.167 Units

Vertical Shift: Up 2.149Units

Reflection about the x-axis: None

Reflection about the y-axis: Reflected

Vertical Compression or Stretch: Stretched

Step-by-step explanation:

To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

3 0

4 years ago