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natta225 [31]
3 years ago
9

(2.8 x 10^8) / (7 × 10^2)

Mathematics
2 answers:
Zigmanuir [339]3 years ago
8 0

Answer:

7=x/5; she has earned 35 points

Step-by-step explanation:

(5)7=x/5(5)

so, you multiply each side by five, since the inverse operation of division is multiplication, then solve.

7(5)=35

x/5(5)=x

so x (the number of points she earned) is equal to 35.

raketka [301]3 years ago
4 0

Answer:

(2.8 x 10^8) / (7 × 10^2) = 400'000

Step-by-step explanation:

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A piston is seated at the top of a cylindrical chamber with radius 5 cm when it starts moving into the chamber at a constant spe
Tanzania [10]
Rate is change is 1.2
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3 years ago
If you start with Malvin’s age, take half of it, increase that result by 5, then divide by 3, and finally double that, you get 8
Kisachek [45]

Answer:

24 years old

Step-by-step explanation:

Let Malvin's age be x.

  • x / 2
  • x / 2 + 5 = 5x / 10  [ By taking the L.C.M.]
  • ( 5x / 10 ) * ( 1 / 3 ) = 5x / 30   [ Multiply with the reciprocal of 3 ]
  • ( 5x / 30 ) * 2 = 5x / 15

Now let's solve the equation,

5x / 15 = 8

       5x = 8 * 15

       5x = 120

         x = 120 / 5

         x = 24

Therefore, Malvin is 24 years old.

Hope yo liked the answer!!

If you found it helpful, please mark it as the Brainliest!!

3 0
3 years ago
A trapezoid has base lengths of 36cm and 60cm. the area is 768^2. Find the height.
Harlamova29_29 [7]

Answer:

if you mean 768 centimeters squared then the height is 16.38 cm. but just in case, if you did mean 768 squared then the height is 12288.21.

Step-by-step explanation:

5 0
3 years ago
What is the factored form of the polynomial?
DENIUS [597]

Answer:

C.  (x + 4)(x + 5).

Step-by-step explanation:

We need 2 numbers whose product is + 20 and whose sum is + 9.

They are + 5 and + 4 , so

x2 + 9x +20

= (x + 4)(x + 5).

5 0
3 years ago
in triangle PQR the measure of angle R=90, QP=73, RQ=55, and PR=48. what is the value of the sine of angle P to the nearest Hund
alexandr402 [8]

Answer:

P ≈ 48.89°(nearest hundredth)

Step-by-step explanation:

The triangle PQR forms a right angle triangle since angle R is 90°. The triangle has an hypotenuse , adjacent and opposite side.

Using the SOHCAHTOA principle one can find the sine ratio of angle P. Let us designate where each side represent.

opposite side(QR) = 55

adjacent side(PR) = 48

hypotenuse(PQ) = 73

sin P = opposite/hypotenuse

sin P = 55/73

P = sin⁻¹ 55/73

P = sin⁻¹ 0.75342465753

P = 48.8879095605

P ≈ 48.89°(nearest hundredth)

5 0
3 years ago
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