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4 years ago

12

Help can y’all explain this

1 answer:

givi [52]4 years ago

4 0

Answer:

22

Step-by-step explanation:

convert into mixed fraction

11/2 divided by 1/4

then keep change flip

11/2 *4/1

then cancel common factor and cross multiply

11*2/1*1=22

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The base of the isosceles triangle is five times the height<br><br> Find the exact value of cot ø

Vika [28.1K]

Answer:

The exact value of cot(∅) is 2.5

Step-by-step explanation:

The picture of the question in the attached figure

we know that

An isosceles triangle has two equal sides and two equal interior angles

In his problem

$AB=BC$

$m\angle BAC=m\angle ACB=\phi^o$

In the right triangle ABD

$cot(\phi)=\frac{AD}{BD}$ ---> adjacent side angle ∅ divided by the opposite side angle ∅

we have

The base of the isosceles triangle is five times the height

so

$b=5h$

$AD=\frac{b}{2}=\frac{5h}{2}\ units$

$BD=h\ units$

substitute

$cot(\phi)=\frac{(5h/2)}{h}=2.5$

8 0

3 years ago

Solve using elimination.<br> -5x - 3y = 20 <br> 3x - y = 14

gogolik [260]

Point Form:

( 11/7 , -65/7 )

Equation Form:

x = 11/7, y = -65/7

3 0

3 years ago

HELP Combining like terms solve all please :) c

In-s [12.5K]

Answer:

11. x = -16

12. k = 6

13. x = -19

14. x = -6

15. x = -20

16. Combining like terms isn't to be used on this type of problem. I'm sorry, can you guess on this one?

17. x = 19

18. n = -10

19. b = 11

20. n = 4

21. r = -6

22. n = -4

Again super sorry about question 16 :(

6 0

3 years ago

Read 2 more answers

Find the coordinates of the other endpoint of the segment, given its midpoint and one endpoint. Midpoint (15, -8), endpoint (1

Rainbow [258]

Answer:

the other endpoint is $(14,-13)$

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two points is equal to

$M(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Let

$(x1,y1)=(16,-3)$

so

$(16+x2)/2=15$ -----> $x2=30-16=14$

$(-3+y2)/2=-8$ -----> $y2=-16+3=-13$

therefore

the other endpoint is $(x2,y2)=(14,-13)$

7 0

4 years ago

A company manufactures and sells x television sets per month. The monthly cost and price-demand equations are C(x)=72,000+60x

myrzilka [38]

Answer:

Step-by-step explanation:

Given

Cost Price $c(x)=72000+60x$

Price $p(x)=300-\frac{x}{20}$

Revenue generated $R(x)=P(x)\times x$

where x=no of units

$R(x)=300x-\frac{x^2}{20}$

To get maxima and minima differentiate R(x)

$\frac{\mathrm{d} R(x)}{\mathrm{d} x}=0$

$\frac{\mathrm{d} R(x)}{\mathrm{d} x}=300-2\times \frac{x}{20}=0$

$300=2\times \frac{x}{20}$

$x=3000$

maximum Revenue $R(x)=(300-\frac{300}{20})\times 300=4,50,000$

(b)Profit=Revenue - cost

$Profit=xp(x)-c(x)$

$Profit=300x-\frac{x^2}{20}-72000-60x$

$Profit(z)=240x-\frac{x^2}{20}-72000$

differentiate Profit to get maximum value

$\frac{\mathrm{d} z}{\mathrm{d} x}=240-2\times \frac{x}{20}$

$x=2400$

maximum Profit $z=2,16,000$

(c)Now company decided to tax the company $ 55 for each set

Profit $(z_1)=xp(x)-c(x)-55x$

$z_1=300x-\frac{x^2}{20}-72000x-60x^2-55x$

$z_1=185x-\frac{x^2}{20}-72,000$

differentiate Profit to get maximum value

$\frac{\mathrm{d} z_1}{\mathrm{d} x}=0$

$\frac{\mathrm{d} z_1}{\mathrm{d} x}=185-\frac{2x}{20}=0$

$x=1850$

$P(z_1\ at\ x=1850)=99125$

company should charge 207.5 $ for each set

6 0

4 years ago