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fgiga [73]
3 years ago
5

Please do 3 & 4 and show work

Mathematics
1 answer:
Shalnov [3]3 years ago
8 0

Answer:

3. A=B=70°; C=D=110°

4. A=90°; C=48°

Step-by-step explanation:

Same-side angles of a trapezoid add to 180°.

___

3. (2x) +(x+15) = 180

3x + 15 = 180 . . . . simplify

x +5 = 60 . . . . . . . divide by 3

x = 55

A=B=(x+15)° = (55+15)° = 70°

C=D=2x° = 2·55° = 110°

__

4. You are given the values of one of the angles on each side, so the other can be found by subtraction:

A=180°-D = 90°

C = 180° -132° = 48°

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The number of crayons in a box is forty
zzz [600]
2x-40=140
+40 +40
2x=180
————
2x
X=90


The correct answer would be 90 crayons
4 0
3 years ago
What is the area of the shaded part of the figure if =14
aniked [119]

The area of the shaded part is: 42.14 ft² .

<h3>Area of Square</h3>

Area = s²

<h3>Area of Quarter Circle </h3>

Area = 1/4πr²

Thus:

Area of the shaded part of the figure = area of square - area of quarter circle

Area of shaded part = s² - 1/4πr²

s = 14 ft

r = 14 ft

Substitute

Area of shaded part = 14² - 1/4(3.14)(14²)

= 42.14 ft²

Therefore, the area of the shaded part is: 42.14 ft² .

Learn more about area of square on:

brainly.com/question/813881

4 0
2 years ago
What is the number of 20% of 40
mote1985 [20]

Answer:

8

Step-by-step explanation:

40 x 0.20

= 8

3 0
3 years ago
-3-6v=-3(1-4y) + 2v
Lubov Fominskaja [6]

Answer:

               if solving for v: v= 3y

                                            -  _

                                               2

Step-by-step explanation:

if solving for y: y= 2v

                           -    _

                               3                          

4 0
3 years ago
43 - u = 69<br> how much is u?
Stolb23 [73]

Answer:

69-43= 26

therefore "U" is worth 26 U=26

Step-by-step explanation:

4 0
3 years ago
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