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OverLord2011 [107]
3 years ago
5

Find the area of the polygon.

Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

(30 \times 30) + ( \frac{1}{2}  \times (30 + 15) \times 30 \\ 900 + 675 \\ 1575

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Will give brainlest How many solutions does the system have? y=4x−8 4y=4x−8 Choose 1 answer: A. No Solution B. Infinite solution
34kurt

Answer:Try A.

Although it could be another answer. Comment on this if its wrong I can help you.

5 0
4 years ago
.Find the unknown angles in each of the following figures and mention the property used​
forsale [732]

Answer/Step-by-step explanation:

a. Angle y is vertically opposite the angle that measures 80°. Vertically opposite angles are said to be equal to each other, therefore, y = 80°

x + y + 50° = 180° (sum of angles in a ∆)

x + 80° + 50° = 180 (substitution)

x + 130° = 180°

x = 180° - 130° (subtracting 130 from each side)

x = 50°

b. x + 50° = 120° (sum of the 2 opposite interior angles in a ∆ = the exterior angle of the ∆)

x = 120 - 50 (subtracting 50 from each side)

x = 70°

y + x + 50° = 180° (sum of angles in a ∆)

y + 70° + 50 = 180° (substitution)

y + 120° = 180°

y = 180 - 120 (subtracting 120 from each side)

y = 60°

7 0
3 years ago
The graph of f(x) is given on the right.
aleksklad [387]

Answer:

-1,3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A prime number less than 100 is selected randomly. what is the probability that its square has units digit $7$?
liberstina [14]
Any number ends with 0, 1, 2, 3, 4, 5, 6, 7, 8 or  9

Given any number. The square of this number is the last digit of square of the original numbers units digit.

For example

23*23 ends with 9 (3*3=9)

149*149 ends with 1 (9*9=81)

2564*2564 ends with 6 (4*4=16) 

and so on

so all the possible unit digits of a square number are {0, 1, 4, 5, 6, 9}

because:

0*0= 0 ; 1*1=1; 2*2=4; 3*3=9; 4*4=16; 5*5=25, 6*6=36; 7*7=49; 8*8=64, 9*9=81

Thus, the probability that the square of a number selected from any set of numbers being 7, is 0.


Answer: 0
 

4 0
3 years ago
Please help 7th ac math
UNO [17]

Answer:

1/2x

Step-by-step explanation:

\frac{\frac{1}{4}+x *\frac{2}{1} }{\frac{1}{2}\frac{2}{1}  }  =\frac{2}{4} +  2x= \frac{1}{2} + 2x

To solve this type of fraction you need to times the inverse of the bottom fractal, both over and under. In this case the inverse of 1/2 is 2/1

5 0
3 years ago
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