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kotegsom [21]
3 years ago
9

PLEASE HELP I HAVE A TIME LIMIT 17 Points and Brainlest to who answers first

Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0
A triangle is 180 degrees. 180-28=152. so if angle b and c are combined, your answer is 152 degrees.
Leviafan [203]3 years ago
6 0

Answer:

b.) 76

Step-by-step explanation:

A triangles angles will always add up to a total of 180°.Since both angles B and C are x, they have the same value. So to find their value, add the choices to 28 twice until you get 180:

28+76+76=180

Or, you can make and equation. 180 on one side of the equation. On the other side, put both x's (2x) plus the value of angle A:

2x+28=180

Solve for x:

2x+28-28=180-28\\2x=152\\\\\frac{2x}{2}=\frac{152}{2}\\  x=76

Finito.

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find the slope of line through each pair of point slope = y2-y1 _____ x2- x1(19, - 16) , ( -7, - 15)
aleksley [76]

we have the ordered pairs

(19, - 16) , ( -7, - 15)​

Find the slope

Applying the formula

m=(-15+16)/(-7-19)

m=1/-26

m=-1/26

7 0
1 year ago
In a recent poll^1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753. Use stra
Annette [7]

Answer:

The 90% confidence interval is between a lower limit of 0.7306 and an upper limit of 0.7754.

Step-by-step explanation:

Confidence interval for a proportion is given as p +/- margin of error (E)

p is sample proportion = 753/1000 = 0.753

n is sample size = 1000

confidence level = 90%

critical value corresponding to 90% confidence level and infinity degree of freedom is 1.645

E = critical value×sqrt[p(1-p) ÷ n] = 1.645×sqrt[0.753(1-0.753) ÷ 1000] = 1.645×sqrt[1.85991×10^-4] = 1.645×0.0136 = 0.0224

Lower limit of proportion = p - E = 0.753 - 0.0224 = 0.7306

Upper limit of proportion = p + E = 0.753 + 0.0224 = 0.7754

90% confidence interval is (0.7306, 0.7754)

8 0
4 years ago
Two planes intersect in a<br>point<br>Oray<br>line<br>line segment​
ratelena [41]

Answer:

Line

Step-by-step explanation:

Planes intersect along a line.

5 0
3 years ago
maria uses 2 3/4 cups of flour, 13/8 cups of sugar, and 1/2 cup of butter what is the total amount of ingredients used to make t
Gre4nikov [31]
Volume of the flour = 2 3/4
Volume of the sugar = 13/8
Volume of the butter = 1/2

Total volume
2 3/4 + 13/8 + 1/2
11/4 + 13/8 + 1/2
(22+13+4) / 8
39 / 8
4 7/8
4 0
4 years ago
(3 x 6) = 10 x _____ = ____
nataly862011 [7]

Answer:

1.8

18

Step-by-step explanation:

(3 \times 6) = 10 \times 1.8 = 18

4 0
3 years ago
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