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Vikentia [17]
3 years ago
5

A circle is centered on point B. Points A, C and D lie on it's circumference.

Mathematics
2 answers:
kvasek [131]3 years ago
8 0

Answer:

20

Step-by-step explanation:

i just did this one

IrinaVladis [17]3 years ago
3 0

The measure of the angle ADC is 20°

<u>Explanation:</u>

Given:

∠ABC = 40°

∠ADC = ?

We know:

Angle subtended at the center is twice the angle subtended at the circumference.

Thus,

∠ABC = 2 x ∠ADC

On substituting the value we get:

40° = 2 X ∠ADC

∠ADC = 20°

Therefore, the measure of the angle ADC is 20°

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If u = &lt;-7, 6&gt; and v = &lt;-4, 17&gt;, which vector can be added to u + 3v to get the unit vector &lt;1, 0&gt; as the resu
ivann1987 [24]

With u = <-7, 6> and v = <-4, 17>, we have

u + 3v = <-7, 6> + 3 <-4, 17> = <-7, 6> + <-12, 51> = <-19, 57>

We want to find a vector w such that

u + 3v + w = <1, 0>

Subtract u + 3v from both sides to get

w = <1, 0> - (u + 3v) = <1, 0> - <-19, 57>

w = <20, -57>

7 0
3 years ago
Find the value of each variable in the diagram below. Two choices are correct.
Murljashka [212]

Answer:

okay this question i dont know

1st - 2/3 =π√÷

and if tiu substrate that

the answer is 12358063

you can give me the brainliest if u want

final answer-

325

4 0
3 years ago
Please answer<br> ~~~~~~~~~~~~<br> •••••••••••••••••
andrew-mc [135]
So to answer you just have to substitute all the given choices into the formula and see which come out true.
2(1) - 3(-3) >_ 12
2 + 9 >_ 12
11 >_ 12
XNXOXPXEX

2(8) - 3(1) >_ 12
16 - 3 >_ 12
13 >_ 12
VYVEVSV

2(3) - 3(2) >_ 12
6 - 6 >_ 12
0 >_ 12
XNXOXPXEX

2(-2) - 3(-6) >_ 12
-4 + 18 >_ 12
14 >_ 12
VYVEVSV

2(2) - 3(3) >_ 12
4 - 9 >_ 12
-5 >_ 12
XNXOXPXEX

2(1) - 3(8) >_ 12
2 - 24 >_ 12
-22 >_ 12
XNXOXPXEX

2(-3) - 3(1) >_ 12
-6 - 3 >_ 12
-9 >_ 12
XNXOXPXEX

VYVEVSV = yes
XNXOXPXEX = nope
4 0
3 years ago
I need help please and thank you
sergeinik [125]
Try googling it , sorry
8 0
3 years ago
Determine the equation of the parabola shown in the diagram in factored form. (check picture below)
krok68 [10]

Answer:

(x+1)(x-3)

Step-by-step explanation:

A quadratic in factored form is usually expressed as: a(x\pm a)(x \pm b) where the sign of a and b depends on the sign of the zero. And I said "usually" since sometimes the x will have a coefficient. Anyways in the quadratic there are two zeroes at x=-1 and x=3. This can be written as: a(x+1)(x-3). Notice how the signs are different? This is because when you plug in -1 as x you get a factor of (-1+1) which becomes 0 and it makes the entire thing zero since when you multiply by 0, you get 0. Same thing for the x-3 if you plug in x=3. Now a is in front and it can influence the stretch/compression. To find the value of a, you can take any point (except for the zeroes, because it will make the entire thing zero, and you can technically input anything in as a)

I'll use the point (1, -4) the vertex

-4 = a(1+1)(1-3)

-4 = a(2)(-2)

-4 = -4a

1 = a. So yeah the value of a is 1

So the equation is just: (x+1)(x-3)

6 0
2 years ago
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