1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anvisha [2.4K]
3 years ago
10

Help me please, I’ll mark brainliest

Mathematics
1 answer:
Lesechka [4]3 years ago
8 0
I know that
20. 15
21. 18

Good luck though I remember doing it
You might be interested in
a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimet
Helga [31]

Answer:

The period when its more than halfway

= 2 < t  ≤ 2.83 seconds   ( to nearest hundredth).

Step-by-step explanation:

When is is halfway down the ramp d = 3920/2 = 1960 cm, so:

1960 = 490 t^2

t^2 = 1960/490 = 4

t = 2 seconds.

When it reaches the bottom d = 3920 :

t^2 = 3920/490 =  8

t = 2.83 seconds.

5 0
3 years ago
B
Radda [10]

Answer:

ΔCFE is a right triangle

ΔBEC is an acute triangle

ΔBFG is an equilateral triangle

ΔGAF is an obtuse isosceles triangle

5 0
3 years ago
The perimeter of a rectangle is 15x + 17y. If the length is 7/2x + 7y then find the width of the rectangle.
EastWind [94]

Answer:

84 c. –25 6. 119 7. –28 36 8a. 4 b. 52 LESSON EI.B: ANSWERS 709 Topic EI .... The length is 11 inches, and the width is 7 inches. ... 15x – 10 = 2x + 6 1 5 10. x = 1 11. y = 8x – 5 12. x = y + 8 8 49. .... 5xy 3 – 17x 2y + 8xy + 16x 3y – 7x 10. x 3y 2z – 10x 2y + 14x 2z + 3xy 2 – 25xz 2 LESSON ... 2 > y > –5 F a 4x 3 y 5 4y 3 x 22.

Step-by-step explanation:

5 0
3 years ago
15.
saveliy_v [14]
D 85try telling me what like operation it would be so be easier to figure out
3 0
2 years ago
Can someone please help me with this question, thank you! :)
loris [4]

Answer:

14

Step-by-step explanation:

Sure thing, just use PEMDAS!

(Simplify first so that 24/4 = 6)

2 x 1 + 2 x 6

2 + 2 x 6

2 + 12

14

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the surface area of the figure?
    10·2 answers
  • Help please
    5·2 answers
  • Which of the following represents "eight times the difference of a number and three is sixty-four"?
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=f%3D%20%20%5Cfrac%7B9%7D%7B5%7Dc%20%2B%2032" id="TexFormula1" title="f= \frac{9}{5}c + 32" al
    14·1 answer
  • A 9-cut cheese pizza is 1,800 calories. How many calories in 2 slices?
    14·1 answer
  • Charlie run at a speed of 3 yards per second. about how many miles per hour does charlie run?
    10·1 answer
  • What is the mean absolute deviation definition
    6·1 answer
  • In 1980 Kim was 16 and Anna was 8. When was Kim age four times Anna's age?​
    13·1 answer
  • The ratio of the numerator to the denominator of a fraction is 2 to 3. If both the numerator and the denominator are increased b
    12·1 answer
  • 3. Choose the equation that correctly shows the Commutative Property of Multiplication. 5 × 1 3 = 1 3 ÷ 5 5 × 1 3 = 5 × 1 3 5 +
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!