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love history [14]
4 years ago
15

Please help. I dont undestand this

Mathematics
1 answer:
aleksandrvk [35]4 years ago
4 0

Ahello me again . I get 105°

since ∠A = 50° then ∠DAB = 25°

since ∠B = 100° then ∠ DBA = 50°

the sum of the angles in triangle ADB = 180°

thus ∠ADB = 180 - (25 + 50 ) 180 - 75 = 105°

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lawyer [7]

Answer:

3 1/3 km or 3.33 km (to the hundredth)

Step-by-step explanation:

Using the given formula,

estimated distance = v.t  = velocity * time,

velocity = 5 km/h

time = 40 minutes = \frac{40}{60} hours = \frac{2}{3}  hours

Therefore

distance = 5 km/h * \frac{2}{3}  hours = 10/3 km

= 3.33 km approximately

3 0
3 years ago
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Pls help me asap !!!!!
Phantasy [73]

Answer:

9

Step-by-step explanation:

This is a right triangle.  We can use the Pythagorean theorem to determine the missing side.

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

a^2 + 12 ^2 = 15^2

a^2 +144 =225

a^2 = 225-144

a^2 = 81

Taking the square root of each side

a = 9

8 0
3 years ago
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Determine the x-intercepts of the function. Check all that apply. (–2, 0) (–1, –2) (0, 0) (1, 0) (2, 0)
Eva8 [605]

Answer:

The answers on EDGE2020 are

A (-2, 0)

C (0, 0)

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Step-by-step explanation:

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4 years ago
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You are working for a company that creates tubes that measure 10 cm long and have a diameter of 6 cm. The tubes need to be cut j
Nataly_w [17]

Answer:

A= 2\pi (3cm)^2 +1 2\pi (3cm)(10 cm)= 18 \pi + 60\pi = 78 \pi cm^2

And replacing the value of \pi =3.14 we got:

A = 78*3.14 cm^2= 244.92 cm^2

Step-by-step explanation:

For this case we have the long who represent the height 10 cm and the diameter is 6cm. So then the radius is given by:

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And the surface area for a cylinder is given by this formula:

A= 2\pi r^2 +2 \pi rh

And replacing the info given we got:

A= 2\pi (3cm)^2 +1 2\pi (3cm)(10 cm)= 18 \pi + 60\pi = 78 \pi cm^2

And replacing the value of \pi =3.14 we got:

A = 78*3.14 cm^2= 244.92 cm^2

4 0
3 years ago
What factors of 20 are also factors of 50
spayn [35]
The easiest way to find the factors of a pair of numbers, is simply to write out the factors until you find the ones that they have in common. So in this case, these factors would be listed as follows:
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7 0
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