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3 years ago

Is x^2y^2-25 a monomial, binomial, or a trinomial?

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

3 0

Answer:

trinomial

Step-by-step explanation:

there are 3 terms

x^2

y^2

-25

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Pls someone help me with this question pls

ycow [4]

Answer:

9/11

Step-by-step explanation:

9/11

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

20 + 8(q - 11) = -12

Simora [160]

Step-by-step explanation:

try to impose the process of elimination and see if that helps

3 0

3 years ago

Which of the following equations could be used to solve for x in the triangle shown?

iVinArrow [24]

Answer:

Step-by-step explanation:

because do sin 48 x X to find it

7 0

2 years ago

Read 2 more answers

What is 0.04 is 1/10 of what number ?

Simora [160]

$0.04= \frac{4}{100}\to\frac{1}{25} \\\\ \frac{1}{10} \ of \ x= \frac{1}{25} \\\\ \frac{1}{10}*x=\frac{1}{25} \\\\ \frac{x}{10}=\frac{1}{25} \\\\ \boxed{x=\frac{10}{25}\to\frac{2}{5}}$

5 0

3 years ago