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ahrayia [7]
2 years ago
6

Solve for x please show work... i will give you brainliest

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
5 0

Answer:

82°

Step-by-step explanation:

total wine of quadrilateral=360°

130+ 46+ 102 +x =360

x=360- 278

x=82°

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Using the Triangle Sum Theorem, find x and the missing angles (2x +1) (5x +5) x= Angle (2x+1) = Angle (5x+5) =​
Arte-miy333 [17]

Answer:

x = 12

(2x + 1)° = 25°

(5x + 5)° = 65°

Step-by-step explanation:

By the property of a triangle,

Sum of all angles of a triangle is 180°

In the given right triangle,

(2x + 1)° + 90° + (5x + 5)°= 180°

7x + 96 = 180

7x = 180 - 96

x = \frac{84}{7}

x = 12

Angle (2x + 1)° = 2(12) + 1 = 25°

Angle (5x + 5)° = 5(12) + 5 = 65°

Therefore, all three angles of the right triangle are 25°, 90° and 65°.

4 0
3 years ago
There are 130 people in a sport centre. 73 people use the gym. 62 people use the swimming pool. 58 people use the track. 22 peop
Delvig [45]

Answer:

\frac{11}{87}

Step-by-step explanation:

Total number of people = 130

Number of people who use the gym = 73

Number of people who use the pool = 62

Number of people who use the track = 58

Number of people who use the gym and the pool = 22

Number of people who use the pool and the track = 29

Number of people who use the gym and the track = 25

Number of people who use all three facilities = 11

Total number of people who use at least two facilities = 22 + 29 + 25 + 11 = 87

The probability that the randomly selected person uses all three facilities = number of those who use all three facilities ÷ total number of people who use at least two facilities.

==> 11 ÷ 87

==> \frac{11}{87}

3 0
3 years ago
a digital camera costs $ 140 and the sales tax rate is 7.5 % what us tge total cost of the camera after tax round to the nearest
stiv31 [10]
$140(.075) = 10.5
10.5+140= 150.50
the total would be $150.50
5 0
3 years ago
If f(x) = -x2 + 6x, what is f(-3)?
Sever21 [200]

Answer:

-12

Step-by-step explanation:

f(-3)= -(-3)2 + 6(-3)

= -(-6) -18

= 6 - 18

= - 12

8 0
3 years ago
1. NBC: A jacket you like costs $64. You have a coupon for 20% off. How much will you pay for the jacket?​
Artemon [7]

Answer:

$51.2

Step-by-step explanation:

If you subtract 64 to 20% then you end up with $51.2

8 0
2 years ago
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