Circles pls help decent amount of points

Mathematics

1 answer:

Tatiana [17]3 years ago

6 0

Recall that with inscribed angles, they equal half of the arc they create.

Knowing this, take a look at Angle B. Notice that it's two lines are on the diameter? This means that the arc created is 180 degrees. Because it's an inscribed angle, we know that it's 90 degrees.

Also recall that the sum of all angles in a triangle equal 180 degrees.

Knowing this, we can add up all the angles:
(2x + 2) + 9x + 90 = 180

Simplify:
11x + 92 = 180

Subtract:
11x = 88

Divide:
x = 8

Now that we know the value of x is 8, we can input that into the equation of angle 1 in order to solve the question:
2x + 2 = 2(8) + 2

2(8) + 2 = 16 + 2 = 18

Angle 1 is 18 degrees.
-T.B.

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Micheal was asked to give examples of the identity property of addition and identity multiplication. Below are his answers.

xxMikexx [17]

Answer:

identity property of addition-

a+0=a

identity property of multiplication-

a*1=a

Step-by-step explanation:

i cant give u an exact answer as u didnt give Micheals answers so i just gave some examples about what addition and multiplication identity property should look like. Identity property's concept is to keep the same identity. Basically, "a" shouldnt change. In addition, to keep a the same all u hv to do is add 0 as anything plus 0 is the same. for multiplication, just multiply by 1. Hope this helps!!

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3 years ago

I got the same answer as the example

DaniilM [7]

Answer:

Step-by-step explanation:

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2 years ago

Which show the factored form of x^2-12x-45

slavikrds [6]

Answer:

$x^{2} -12x-45\\=(x-15)(x+3)$

Step-by-step explanation:

6 0

3 years ago

Simplify 2 to the 5 power to the fourth power over 3 to the second power

melisa1 [442]

I'm assuming you mean 2^(5)(4/3)(2).
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4 0

2 years ago

I cant believe how bad my brother, Reuben, is at growing things. He bought a whole bunch of plants at the nursery the other day.

jeka94

Answer:

68 plants.

Step-by-step explanation:

Let x represent the number of plants that Reuben bought from the nursery.

We have been given that Reuben bought a whole bunch of plants at the nursery the other day. Right away, five died. So number of plant left would be $x-5$ .

We are also told that then our dog dug up 2/9 of them. So number of plants left after dug-up would be $\frac{2}{9}(x-5)$ .

Further a rabbit came and ate ½ of what was left. So number of plants left would be $\frac{\frac{2}{9}(x-5)}{2}=\frac{2}{9\times 2}(x-5)=\frac{1}{9}(x-5)$ .