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gogolik [260]
3 years ago
15

*HELP* BRAINLIEST!!!

Mathematics
1 answer:
prisoha [69]3 years ago
8 0

Answer: The correct answer is option B: The vertical angle

Step-by-step explanation: Please refer to the picture attached for further details.

The circle with center O has an arc AB with a central angle of 42 degrees as shown in the diagram (not draw to scale).

If the line A is extended to point D and also line B is extended to point C both along the circumference of the circle O, then you would have another arc CD on the circle.

If two intersecting lines AD and BC form a pair of angles (shown here as 42° and x°) the angles are called vertical angles, and vertical angles in a circle are equal.

Hence the only thing that can be shown to measure 42 degrees in the question above is a vertical angle.

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Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 50 minutes, or 0.83 hour.
Jet001 [13]

Answer:

ava ran the fastest

Step-by-step explanation:

3 0
3 years ago
The length of a side and corresponding height of a triangle are (x+3) and (2x-5) given that area of triangle is 20cm^2. Find the
vaieri [72.5K]

Answer:

x = 5

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h is height )

Here A = 20, b = (x + 3) and h = (2x - 5) , then

\frac{1}{2} (x + 3)(2x - 5) = 20 ← multiply both sides by 2

(x + 3)(2x - 5) = 40 ← expand left side using FOIL

2x² + x - 15 = 40 ( subtract 40 from both sides )

2x² + x - 55 = 0 ← in standard form

(x - 5)(2x + 11) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

2x + 11 = 0 ⇒ 2x = - 11 ⇒ x = - 5.5

But x > 0 , so x = 5

8 0
3 years ago
Solve<br><img src="https://tex.z-dn.net/?f=1%29%20%5C%3A%20y%20%3D%20%5Cfrac%7B37.46%7D%7B18%7D%20%5C%5C%20%5C%5C%202%29%20%5C%3
sladkih [1.3K]

Step-by-step explanation:

as "Ace" you cannot operate a calculator ?

that is all that has to be done here : do the calculation !

37.46 / 18 = 2.081111111...

-37.46 / 18 = -2.081111111...

so, what was now the problem ?

5 0
3 years ago
The graph of y = va is translated 5 units to the left and 7 units up. What is the equation of the graph that results
Ede4ka [16]

Answer:

B

Step-by-step explanation:

i did this a couple years ago should be right if im correct

5 0
3 years ago
PLSSSS HELP!!
Rus_ich [418]

Answer:

31.25 in²

Step-by-step explanation:

Surface area of triangular pyramid

Perimeter, P = 4s = 4 * 2.5 = 10 inches

Lateral surface area = 0.5 * P * height = 0.5 * 10 * 5 = 25 inch²

The base area = s² = 2.5² = 6.25 inch²

Hence, surface are ao triangular pyramid ;

Lateral surface area + base area

= 25 inches + 6.25 inch²

= 31.25 in²

7 0
3 years ago
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