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2 years ago

РАЗЛОЖИТЕ НА МНОЖИТЕЛИ ОЧЕНЬ НАДО ДАЮ ВСЕ ЧТО ЕСТЬ ПОМОГИТЕ ПРОШУ !1!1!1!!11!!1

Mathematics

1 answer:

dexar [7]2 years ago

4 0

Answer:

I'm not sure i don't read thing langa no cap

Step-by-step explanation:

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A bicycle is marked 40% off the original price of $150 it is then taxed at 7 1/2% what is the final cost of the bicycle

elena-14-01-66 [18.8K]

It's answer be.
(150 x 0.4 ) x 1.075 = 96.75

7 0

2 years ago

Read 2 more answers

A farmer has 20 acres to plant in wheat and barley. He has to plant at least 15 acres. Wheat costs $200 per acre to plant and ba

maria [59]

Answer:

16 acres of barley only (no acres of wheat)

Step-by-step explanation:

A graph shows cost of planting puts an upper limit on planted area. The lower limit is provided by the requirement to plant at least 15 acres. The vertices of the feasible solution region are ...

(wheat acres, barley acres) = {(0, 15), (0, 16), (3, 12)}

The profit associated with these scenarios will be ...

for (0, 16): 16·350 = 5600

for (3, 12): 3·450 +12·350 = 1350 +4200 = 5550

To maximize profit, the farmer should plant 16 acres of barley.

4 0

3 years ago

Find sum of three consecutive even integers if the largest integer is Y

KATRIN_1 [288]

Answer:

3y -- 6

Step-by-step explanation:

if the largest number is y, then the other two integers would be (y -- 2) and (y -- 4).

Therefore the sum of the integers would be

y + (y -- 2) + (y -- 4) = 3y -- 6.

7 0

2 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

2 years ago

How to do number 13 and 14

Murrr4er [49]

From the information: v is 64 while c is 5

Differentiate the new equation h=-16 $t^{2}$ + 64t + 5 to get $\frac{dh}{dt}$ = -32t + 64.

no 13). At maximum height this derivative equals zero so: -32t + 64 = 0; -32t = -64; t=2.Hence ans is 2 secs

no 14). put t as 2 sec in the equation: h=-16 $t^{2}$ + 64t + 5. This gives

h=-16( $2^{2}$ ) + 64(2) + 5; h=-64+128+5=69. Hence h is 69ft

7 0

3 years ago