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Lera25 [3.4K]
3 years ago
11

Help me plz right now

Mathematics
1 answer:
Akimi4 [234]3 years ago
4 0

Answer:

T > 0.1

Step-by-step explanation:

-4t > -2/5

-4t / -4 > (-2/5) / -4

t < 0.1

So, t is small than 0.1

Hope this helps!

Maybe brainliest?

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If you answer God will bless you:
VashaNatasha [74]

Answer:

600 m³

Step-by-step explanation:

Given:

  • length of swimming pool = 30 m
  • width of swimming pool = 10 m
  • depth at deep end = 3 m
  • depth at shallow end = 1 m

To find the volume of the water in the pool, find the area of a cross section (see attached image) and multiply it by the width of the pool.

<u>Area of cross section</u>

= area of rectangle - area of triangle

= (3 × 30) - [1/2 × 30 × (3 - 1)]

= 90 - 30

= 60 m²

<u>Volume of pool</u>

= area of cross section × width

= 60 × 10

= 600 m³

6 0
2 years ago
A box contains 17 marbles, 13 blue marbles, and 23 white marbles. What is the part-whole ratio of red marbles in the box.
sergij07 [2.7K]
Since the ratio is part-Whole, first you need to find the whole. If you add all of the marble colors together (17+13+23) you get the total marbles (53) in the box. The ratio of red marbles to the total would be 17 to 53.
6 0
3 years ago
Find the derivative of F(x)=-x^4+4x^3+ 70 for 0&lt;=x&lt;=3
timofeeve [1]

Answer:

  -4x^3 +12x^2 for 0 < x < 3

Step-by-step explanation:

The power rule is appropriate:

  (d/dx)x^n = n·x^(n-1)

This is applied to each of the terms.

  F'(x) = -(4·x^3) +4(3x^2) +0

  F'(x) = -4x^3 +12x^2 . . . . for 0 < x < 3

__

The derivative is not defined at the endpoints of the interval, so F'(x) is only defined on (0, 3), not [0, 3].

8 0
3 years ago
Please help, test due in 1 hour! I will give brainliest! :)
Aleksandr-060686 [28]

Answer:

Rectangle + half circle ?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can you guys help me with the rest of the questions? Please!!!
Harrizon [31]
Questions answered for your homework good luck I also added the steps just if you forget

4 0
3 years ago
Read 2 more answers
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