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Tema [17]
3 years ago
7

I really need help with this. Extra points for answer. Please help ASAP!

Mathematics
1 answer:
ANTONII [103]3 years ago
3 0
If and only if, which mathematicians abbreviate as iff. no kidding, you could look it up:)
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Emergency workers in a small city estimate that in he event of a hurricane they would need to transport3,250 people out of the c
harkovskaia [24]

Answer:

68 buses

Step-by-step explanation:

3250÷48=67.7083333333

round off 67.7083333333 so we will get 68

6 0
2 years ago
If mZBAC = (7x + 1) º and<br> mZBCA = (52 + 9) . what is the<br> measure of the vertex angle?
nata0808 [166]
<h3>Answer:  122 degrees</h3>

==========================================================

Explanation:

Angle BAC can be shortened to "angle A" since the letter A is in the middle.

Angle BCA can be shortened to "angle C" for similar reasoning.

We're told that angles A and C are base angles. For any isosceles triangle, the base angles are congruent

-----------

Let's use this fact to solve for x.

angle A = angle C

7x+1 = 5x+9

7x-5x = 9-1

2x = 8

x = 8/2

x = 4

Once we know what x is, we can find each base angle

  • angle A = 7x+1 = 7*4+1 = 28+1 = 29
  • angle C = 5x+9 = 5*4+9 = 20+9 = 29

Both angles A and C are 29 degrees each, so this confirms we have the correct x value.

-----------

The last step is to use the fact that all three angles of a triangle add to 180 degrees. This will help us find angle B, which is the vertex angle.

A+B+C = 180

29+B+29 = 180

B+58 = 180

B = 180-58

B = 122

The vertex angle is 122 degrees.  

So we can say either angle B = 122, or we could say angle ABC = 122

"angle ABC" is the same as "angle CBA".

3 0
2 years ago
Multiply the following complex numbers:<br> (9-21)(7 +61)
Andrew [12]

Answer:

-816

Step-by-step explanation:

-12*68= -816 this is probably wrong but this is what i got

3 0
3 years ago
Read 2 more answers
What are the values of x and y?
lesantik [10]
Please help me out owo

7 0
3 years ago
What is 23 over 6 as a mixed fraction?
Ulleksa [173]
23/6

Now how many times does 6 go in 23 ???
The answer is 3 times

So, Remaining
= 23 - (6×3)
= 23- 18
= 5

So, the mixed fraction would be
= 3 5/6
3 0
3 years ago
Read 2 more answers
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