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Elden [556K]
2 years ago
13

What is the answer to the questions​

Mathematics
1 answer:
loris [4]2 years ago
7 0
<h3>Answer:  x = 40</h3>

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

Work Shown:

A+B+C = 180 ..... three angles of any triangle add to 180

(2x+10)+(x)+(2x-30) = 180

5x-20 = 180

5x = 180+20 .... adding 20 to both sides

5x = 200

x = 200/5 ... dividing both sides by 5

x = 40

This is the measure of angle B

We can stop here.

If you need to know the values of the other angles, then,

  • angle A = 2x+10 = 2*40+10 = 90
  • angle C = 2x-30 = 2*40-30 = 50

Then note how A+B+C = 90+40+50 = 90+90 = 180 which helps confirm our answer.

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The height of the pyramid is equal to 1/2 of the length of a side on the base. Which formla represents the volume of the pyramid
Sav [38]
The volume of the pyramid is a third of the volume of the prism which has the same base area and height as the pyramid. That is,
V = b²h / 3
Substituting the variables given,
V = (s²)(0.5s) / 3
Simplifying,
V = s³/6
8 0
2 years ago
Answer this .i will make you brainliest
madam [21]

\huge{\underline{\underline{\boxed{\sf{\purple{ǫᴜᴇsᴛɪᴏɴ}}}}}}

<h3> (8) An aeroplane takes off from Dubai located in the +4 time zone at 13:00. It arrives in Manila in Philippines, located in the +8 time zone at 20:00.</h3>

  • (1) Find the time in Manila when the aeroplane departsfrom Dubai.

  • (ii) Find the time duration of the flight.

  • (iii) What is the time in Dubai when the aeroplane arrives in Manila?

\huge{\underline{\underline{\boxed{\sf{\ref{Answer}}}}}}

  • (i)17.00
  • (ii)3 hours
  • (iii) 16.00

\large\huge\green{\sf{♥ Explanation♥}}

<h3>Dubai located +4 zone, takes off at 13.00,</h3>

∴Hence, at standard it is 13.00-4 =99.00 STD talk

off reached at Manila +8 Zone at 20.00

∴Hence at standard & 2000 -8

reached.⇒ 12.00 STD

  • Hence time of flight was = 3 hours.

(i) Time at Manila, whicle Plane de parts

12-3+8 ⇒9+8 → 17.00

(ii) duration = 3 hours.

(iii) in dubai 13.00 + 3 = 16,00

_____________________

Ans

i)17.0.0 (ii) 3 hours (iii) 16.00

________________________

♕ hence we done:) xD

5 0
2 years ago
Find the two numbers whose sum is54 and whose difference is 4
harkovskaia [24]

Answer: I can not see the picture

Step-by-step explanation:

can you show it?

4 0
3 years ago
Read 2 more answers
A) |9+x|=2x<br> b) |x+6|=2x+9
levacccp [35]

Answer:

a) 9

b) -3

Step-by-step explanation:

a)

|9+x|=2x

9 + x = 2x

   - x    -x

---------------

 9   =    x

b)

|x+6|=2x+9

x +6 = 2x +9

-x          -x

     6 = x + 9

    -9         -9

    --------------

       -3 = x

4 0
3 years ago
3. please help asap i will give brainliest
ale4655 [162]

Answer:

QR = 54 cm

SR = 27 cm

plz mark my answer brainlist plzzzz

5 0
3 years ago
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