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stepan [7]
3 years ago
10

A 45 degrees B 90 degrees C 135 degrees

Mathematics
1 answer:
drek231 [11]3 years ago
4 0

Answer:

The measure of \angle 3 :

\angle 3 = 45\textdegree

Step-by-step explanation:

The measurement of \angle 3 is also 45\textdegree, because both \angle 3 and the angle with the measure of 45\textdegree are congruent.

You might be interested in
The area of a rectangle varies jointly as its length and width. Find the equation of joint variation if A = 60ft², l = 15ft, and
MaRussiya [10]

Answer: The length is 6 feet and the width is 10 feet.

Step-by-step explanation: The question has specified the area as 60 (square feet) and the length and width are yet unknown. However we know that the length is 4 feet less than the width. What this means is that, if the width is W, then the length is W - 4.

We can now write an equation for the area of the rectangle as follows;

Area = L x W

60 = (W - 4) x W

60 = W^2 - 4W

If we rearrange all terms on one side of the equation, we now have

W^2 - 4W - 60 = 0

This is a quadratic equation and by factorizing, we now have

(W + 6) (W - 10) = 0

Hence,

Either W + 6 = 0 and then W = -6

Or W - 10 = 0 and then W = 10

We know that the side of the rectangle cannot be a negative value, so we go with W = 10.

Having calculated W as 10, the length now becomes

L = W - 4

L = 10 - 4

L = 6

Therefore, length = 6 feet and width = 10 feet

5 0
2 years ago
Read 2 more answers
Sinx•Tanx•Cotx•Cscx =
nekit [7.7K]

Answer:

the answer of this question is " 1 "

Step-by-step explanation:

as

tanx = sinx/cosx

cotx = cosx/sinx

cscx = 1/sinx

after putting them all in the given equation

sinx.(sinx/cosx).(cosx/sinx).(1/sinx)

they all are canceled as all are being multiplied with their reciprocals so answer is " 1 "

8 0
3 years ago
Matrices C and D are shown below.
yKpoI14uk [10]

Answer:

it's b

Step-by-step explanation:

hope this helps! :D

4 0
3 years ago
Read 2 more answers
BRAINLIEST AND FIVE STARS TO CORRECT ANSWER
Llana [10]
The answer is the first option, <-20, -42>.

We can find this by first finding what -2u would equal by multiplying <5, 6> by -2. This gives us <-10, -12>.

Then we need to find out what 5v is equal to, by multiplying <-2, -6> by 5 to get <-10, -30>.

Now that we know what -2u and 5v are, we can substitute them into the equation and get
<-10, -12> + <-10, -30>, which we can split up into -10 - 10 = -20, and -12 - 30 = -42, so your final answer is <-20, -42>.

I hope this helps!
8 0
3 years ago
I might mark brainliest I just need help
Artemon [7]

Answer:

i think you have to measure your diagram with a protector to find the angles

8 0
2 years ago
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