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NikAS [45]
3 years ago
7

I need some help pls

Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

160°

Step-by-step explanation:

∠C and ∠D are both inscribed angles of arc AB.  Therefore, they are equal.

5w + 20 = 7w − 4

24 = 2w

w = 12

Therefore, ∠C = ∠D = 80°.

Inscribed angles are half the central angle, so mAB = 2 × 80° = 160°.

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What is the zeros of y=x(x+5)(x-8)
sertanlavr [38]
<span>y=x(x+5)(x-8)

The zeros of  </span><span>y=x(x+5)(x-8), means to solve the value of x, when y =0

</span><span>y=x(x+5)(x-8) = 0
</span><span>
x(x+5)(x-8) = 0

x = 0  or  (x+5) = 0   or (x - 8) = 0


x = 0               x + 5 = 0             x - 8 = 0    
                       x  = 0 -5              x = 0 + 8
                       x = -5                  x = 8

Hence the zeros are  x = 0,  x = -5,  x = 8</span>
6 0
4 years ago
A town has accumulated 4 inches of snow, and the snow depth is increasing by 6 inches every hour. A nearby town has accumulated
zimovet [89]

9514 1404 393

Answer:

  2 hours

Step-by-step explanation:

The initial difference in depth is 10-4 = 6 inches. The difference in snowfall rates is 6-3 = 3 inches per hour.

At that rate, the difference in depth will be made up in ...

  (6 in)/(3 in/h) = 2 h

In 2 hours the snowfall in the two towns will be equal.

_____

You could write equations for depth, then equate them.

  d1 = 4 +6h

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  d1 = d2 . . . . . . . . . . for some value of h the depths will be equal

  4 +6h = 10 +3h

  h(6 -3) = 10 -4 . . . . . subtract 3h+4 from both sides

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Snowfall will be equal in 2 hours.

7 0
3 years ago
The ratio of the length to width of a rectangle is 3:4 the perimeter is 56 in, find the length and the width
Verizon [17]

Answer: Length is 12in and width is 16in

Let's use the ratio method!

3+3+4+4 is 14

Let's think the length as," L " and the width as," W "

L / 56 = 3/14

L = 3/14 * 56

L = 12

And for width:

W / 56 = 4/14

W =4/14 * 56

W = 16

There you go! We did it!

Now make sure to click the Brainliest button if I gave the correct answer

7 0
2 years ago
Evaluate P = 50x + 80y at each vertex of the feasible region. (0, 0) P = (0, 15) P = (6, 12) P =
Yanka [14]

(0, 0) <span>P = <span> ⇒ 0</span></span>

(0, 15) <span>P = <span> ⇒ 1200</span></span>

(6, 12) <span>P = <span> ⇒ 1260</span></span>

4 0
3 years ago
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Mr. Berger assigned the following system of equations to be solved for homework. 2x-3y = -12
jeka57 [31]
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