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Mars2501 [29]
2 years ago
15

Help due in 7 minutes!!

Mathematics
1 answer:
kotykmax [81]2 years ago
5 0

Answer:

part B

Step-by-step explanation:

please mark me brain list

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Solve 4 | x + 7 |= 24.
Nana76 [90]

Answer: x = -1, -13

Step-by-step explanation:

7 0
2 years ago
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Y=6*2x for x=-2 evaluate the function
atroni [7]

Answer:

Y = -24

Step-by-step explanation:

For this problem, evaluate simply means for each x, replace the value with -2. So, let's do that.

Y = 6*2x

Y = 6*2(-2)

Y = 6*-4

Y= -24

Cheers.

6 0
3 years ago
Pencils A hexagonal pencil is a regular hexagonal prism, as shown
sukhopar [10]

The answer will be multiple times wich the number needs to change

5 0
3 years ago
) The density of oil in a circular oil slick on the surface of the ocean at a distance of r meters from the center of the slick
Feliz [49]

Answer:

Therefore the mass of the of the oil is 409.59 kg.

Step-by-step explanation:

Let us consider a circular disk. The inner radius of the disk be r and the outer diameter of the disk be (r+Δr).

The area of the disk

=The area of the outer circle - The area of the inner circle

= \pi (r+\triangle r)^2- \pi r^2

=\pi [r^2+2r\triangle r+(\triangle r)^2-r^2]

=\pi [2r\triangle r+(\triangle r)^2]

Since (Δr)² is very small, So it is ignorable.

∴A=2\pi r\triangle r

The density \delta (r)= \frac{40}{1+r^2}

We know,

Mass= Area× density

        =(2r \pi \triangle r)(\frac{40}{1+r^2}})

Total mass M=\sum_{i=1}^n \frac{80r_i\pi }{1+r^2}\triangle r_i

Therefore

\sum_{i=1}^n \frac{80r_i\pi }{1+r^2}\triangle r_i=\int_0^5 \frac{80r\pi }{1+r^2}dr

                      =40\pi[ln(1+r^2)]_0^5

                      =40\pi [ln(1+5^2)-ln(1+0^2)]

                     =40\pi ln(26)

                     = 409.59 kg (approx)

Therefore the mass of the of the oil is 409.59 kg.

3 0
3 years ago
I need help on this please
Schach [20]

Answer:

0.27

Step-by-step explanation:

You take 1.75, and subtract 1.48 from it.     1.75

                                                                    <u>- 1.48</u>

                                                                      0.27

4 0
3 years ago
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