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kati45 [8]
3 years ago
13

Given that ∠ABD = 71°, which equation could be used to solve problems involving the relationships between ∠DBC and ∠ABC?

Mathematics
1 answer:
dexar [7]3 years ago
5 0

Step-by-step explanation:

one could be that all the angles add up to 180

180-71= 109

∠DBC and ∠ABC must add up to 109 degrees

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A simple dart target has two concentric circles. The larger circle has a radius of 4. The smaller circle has a radius of 2. The
Natali5045456 [20]

Answer:

3 times more.

Step-by-step explanation:

The odds of landing a dart in any of the circles correspond to the surface area of the circle.

Calculate the surface area of both circles:

The formula for the area of a circle is \pi r^{2}.

  • inner circle: A=\pi 2^{2}=12.566
  • for the outer circle, use the formula then subtract the value of the inner circle, to find the remaining area: A=(\pi 4^{2} )-12.566=37.699

Calculating greater chance:

Divide the larger area by the smaller area:

37.699/12.566 = 3

That means that the area of the outer circle is 3 times larger, making it 3 times more likely to hit the outer circle. Therefore the points for hitting the inner circle should be 3 times more.

7 0
3 years ago
Gabriel is making a mixture of compost and soil to use for a special plant. He wants his final mix to be 2 parts compost to 6 pa
nata0808 [166]

Answer:

5/2 kg

Step-by-step explanation:

The ratio here is 2:6.  2 plus 6 is 8.

Then (2/8) times 10 kg represents the amount of compost needed; that comes to 20/8 kg, or 10/4 kg, or 5/2 kg.

8 0
3 years ago
Read 2 more answers
A toy rocket is launched from a platform 33 feet above the ground at a speed of 83 feet per second. The height of the rocket in
yanalaym [24]

Answer:

c. 138 feet

Step-by-step explanation:

h(t) = −16t^2 + 83t + 33

At3 seconds

h(3) = -16(3^2) + 83(3) + 33

h(3) = -16(9) + 249 + 33

h(3) = -144 + 249 + 33

h(3) = 138

c. 138 feet

3 0
2 years ago
What equals 44 in multiplication
KATRIN_1 [288]
There are numerous ways two numbers can be multiplied to get 44. Nothing specific has been asked in this question and so i am giving all the answers below.

4 x 11 = 44
2 x 22 = 44
1 x 44 = 44
4 0
3 years ago
Read 2 more answers
Help as quick as possible
sp2606 [1]

Answer: A

Step-by-step explanation: i dont know i

thinks it a it could be wrong

7 0
3 years ago
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