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larisa86 [58]
3 years ago
15

I really need help ! asap plz

Mathematics
1 answer:
hodyreva [135]3 years ago
4 0
✨ a = πr^2 ✨

① 400π = r^2

② 20 x 20 = 400

③ The radius is 20m



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The sum of three numbers is 244.84. One of the numbers is 24.6. The other two numbers are equal to each other. What is the value
mamaluj [8]

Answer:

The value of each of the other two numbers is 110.12

Step-by-step explanation:

244.84 - 24.6 = 220.24

220.24 divided by half is 110.12

The value of the other two numbers is 110.12

4 0
1 year ago
The area of the trapezoid is 40 square units.
Whitepunk [10]

Answer:

5 units

Step-by-step explanation:

Image of the trapezoid is attached.

To find the height of the trapezoid (image attached), let's take the formula for area of a trapezoid.

The formula for area of a trapezoid is:

A = (\frac{a + b}{2}) h

Here, a and b represents the bases of the trapezoid.

a = 6

b = 10

h which represents height is unknown.

A = 40

Substitute figures:

40 = (\frac{6 + 10}{2}) h

40 = (\frac{16}{2}) h

40 = 8 * h

Solve for h:

h = \frac{40}{8}

h = 5

The height of the trapezoid is 5 units

4 0
3 years ago
Read 2 more answers
8x plus 8y equals 8. 8x plus 2y equals 28. Find x and y
alukav5142 [94]

Answer:

x,y = 13/3, -10/3

Step-by-step explanation:

8x+8y=8

8x+2y=28  Subtract eq1 by eq 2

6y=-20

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8x - 80/3=8

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Hope this helps plz hit the crown :D

6 0
2 years ago
Read 2 more answers
Could someone help me find the domain and range? Thank you
Sonja [21]
(-4,0) (-3,3) (-1,0) (0,-3) (1,-5) (3,0)
So, domain numbers are -4, -3, -1, 0, 1, 3
Range are 0, 3, -3,-5,
Just take the ordered pairs and the Xs is the domain and the Ys are the range
8 0
3 years ago
Which of the following is a polynomial?
Makovka662 [10]

Answer:

D

Step-by-step explanation:

Terms are separated by addition and subtraction symbols.

Polynomials consist of terms that are constant and/or variable. The variable terms must have 0 or positive exponents. Polynomials will not consist of division of variable expressions.

Examples of polynomials:

5

5x

6-x

24x^9-x

Examples of non-polynomials:

\sqrt{x}

\frac{x+2}{x-4}

In general a polynomial when written in standard form should be comparable to:

a_nx^n+a_{n-1}x^{n-1}+\cdots a_3x^3+a_2x^2+a_1x+a_0

where the a's could be zero and all the exponents,n, are positive or 0.

D is comparable since all of these are 0 except x_4 which is 1 and x_0 which is -2.

Also the other choices have either division by variable expressions and/or negative exponents on variables.

5 0
3 years ago
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