Evaluate the following: 21 - 8- (-5)(7)| - 54

Answer:

12 possible outcomes. The answer for the second question is 1/3.

Step-by-step explanation:

Cuz I did it :)

Answer:

6cm produces the largest mosquito

Step-by-step explanation:

The question has missing details.

From the complete question, the function is:

[tex]g(x) = 12x-x^2[/tex]

Required

Which area of rainfall produces the most mosquito

This implies that, we calculate the maximum of the function.

This is calculated as:

[tex]Max = -\frac{b}{2a}[/tex]

We have:

[tex]g(x) = 12x-x^2[/tex]

Rewrite as:

[tex]g(x) = -x^2 + 12x + 0[/tex]

From the above:

[tex]a= -1[/tex]

[tex]b = 12[/tex]

[tex]c = 0[/tex]

So, we have:

[tex]Max = -\frac{b}{2a}[/tex]

[tex]Max = -\frac{12}{2 * -1}[/tex]

[tex]Max = \frac{12}{2}[/tex]

[tex]Max = 6[/tex]

This implies that:

[tex]x = 6[/tex] ---- the maximum

When rainfall is at 6cm, there is a maximum number of mosquitoes

The maximum is then calculated as:

[tex]g(x) = 12x-x^2[/tex]

[tex]g(6) = 12 * 6 - 6^2[/tex]

[tex]g(6) = 72 - 36[/tex]

[tex]g(6) = 36[/tex]

The maximum number of mosquito is 36 million

Answer:

Distance between the points = 7 units

Step-by-step explanation:

If a point P(h, k) is reflected across x-axis, rule to be followed will be,

P(h, k) → P'(h, -k)

By this rule,

If the coordinates of new point P' are (5, -3.5)

Then the coordinates of pre-image point P will be (5, 3.5)

By using formula to get the distance between two points,

Distance = [tex]\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}[/tex]

Distance between (5, 3.5) and (5, -3.5) = [tex]\sqrt{(5-5)^2+(3.5+3.5)^2}[/tex]

= [tex]\sqrt{0+7^2}[/tex]

= 7 units

Answer:

Step-by-step explanation:

I hope that is useful for you :)

I'll answer the second question, we are told student can read 80 words in 5 min, so how many words can he read in a min, all we need to do is 80/5 to get 16 and thats your answer!

16 words per minute

Answer:

C. 30.0ft

Step-by-step explanation:

Answer/Step-by-step explanation:

1. x*21 = 24*14 (intersecting chords theorem)

21x = 336

x = 336/21

x = 16

2. 27*x = 45² (secant-tangent rule)

27x = 2,025

x = 2,025/27

x = 75

3. (x + 5)*5 = (4 + 6)*6 (Intersecting secants theorem)

5x + 25 = (10)*6

5x + 25 = 60

5x = 60 - 25

5x = 35

x = 35/5

x = 7

4. (4x + 2)*8 = (5x + 1)*7

32x + 16 = 35x + 7

Collect like terms

32x - 35x = -16 + 7

-3x = -9

x = -9/-3

x = 3

The value of the expression is 8. I hope this helps!!!

Answer:

352 inches

Step-by-step explanation:

I did the math

Answer:

tha points ssry

Step-by-step explanation:

ssry

Answer:

Angle of 1 and 3 as 90*

Step-by-step explanation:

This is because all angles are the same meaning all angles are 90*. Even 1 and 3. Brainiest and a thank you?!

Answer:

We really aren't provided with enough information to give you the answer. I'll explain how to find them, but you should comment on my response and tell be if it gives you any values at all to work with.

So, ∠1 and ∠3 are vertical angles, which means they are equal to each other.

Along with that, ∠2 and ∠4 and also vertical angles, so they're equal to each other as well.

Now we have the information:

∠1 = ∠3

and

∠2 = ∠4

__________________________________________________________

Given that both of the two lines are intersecting, each angle has two angles that it is supplementary to.

Supplementary angle are angles that when added together equal exactly 180°.

A perfectly straight line's angle it 180°.

Using this knowledge, you can find that ∠1 is supplementary to ∠2, ∠2 is supplementary to ∠3, ∠3 is supplementary to ∠4, and ∠4 is supplementary to ∠1.

If that's still confusing, here's it explained simpler:

∠1 + ∠2 = 180°

∠2 + ∠3 = 180°

∠3 + ∠4 = 180°

∠4 + ∠1 = 180°

__________________________________________________________

But still - you haven't given us the information to find these values. Are you given even one angle measurement to work with?? If so, comment it here and I'll work it out for you.

Answer:

NO

Step-by-step explanation:

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u this is irrelevent but idrc lol

Step-by-step explanation:

Answer:

8

sqrt(7)

1/2

20

Step-by-step explanation:

4sqrt(2) * sqrt(2) = 4 * sqrt(4) = 4 * 2 = 8

3sqrt(7) - 2sqrt(7) = sqrt(7)

sqrt(7)/(2sqrt(7)) = 1/2

2sqrt(5) * 2sqrt(5) = 2 * 2 * sqrt(25) = 4 * 5 = 20

Answer: The answer is 5 5/10 or 5 1/2

Step-by-step explanation:

2 1/5= 11/5

2 3/10= 23/10

11/5= 22/10

23/10 + 22/10 = 55/10 = 5 5/10 = 5 1/2

Answer:

1/12

Step-by-step explanation:

1/4 ÷ 3 = 1/4 x 1/3 = 1/12

Answer:

C should be the correct answer

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

Answer:

right i hate that so much

Step-by-step explanation:

Answer:

I feel the same though. So no need to feel bad. I hope you don't get scammed by anymore of them. BTW I have some more information on them on some of my questions if you wanna look. :) If they are still there though. Lol...

Answer:

kinda lol

Step-by-step explanation:

Answer: i have watched harry potter but never read the book. and for star wars i have never read or watched it so your good <3

Step-by-step explanation:

Answer:

thus therefore thy answer musnt be 6 thus forth -3

Answer:

170$

Step-by-step explanation:

150+20=170

Answer:

Step-by-step explanation:

170

Answer:

$1456

Step-by-step explanation:

5200 × 8% = $416(interest in 1 yr/12mnths)

42months ÷ 12months(1year) = 3.5 yrs

$416 × 3.5 yrs = $1456(interest in 42mnths/3.5yrs)

Answer:

if the whole thing equals 110, then subtract 49 from 110 and you'll get 61 and that is your answer

Step-by-step explanation:

Answer:

80 and 20

Step-by-step explanation:

Let the 1st no. be 'x'.

2nd no. should be 'x + 60'.

If the larger no.(x + 60) is divided by the smaller number(x), the quotient is 4.

=> (x + 60)/x = 4

=> x + 60 = 4x

=> 60=4x-x

=> 60=3x

=> 60/3 = x

=> 20 = x

No. are x = 20 and x+60 = 20+60= 80

Answer:

in 8 years each school will have about 1,040 students

Step-by-step explanation:

let 'x' = years

y = 30x + 800

y = -25x + 1240

30x + 800 = -25x + 1240

55x = 440

x = 8

Answer:y=7 is the equation of a line. The line has a y-value of 7 no matter what x-value is given.

Step-by-step explanation:

Answer:

any equation that has -5x +/- any number

Step-by-step explanation:

All you have to do to create an equation that is parallel is keep the slope the same but change its be value. (y = mx + b) <---- keep the mx the same

The two lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel to each other because their slopes (i.e., -2/3 and -2/4) are equal.

Parallel lines are lines in a plane that do not intersect and are always the same distance apart. They have the same slope and will never meet, regardless of how far they are extended.

Therefore, the correct answer is as given above. It can be concluded that lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel lines to each other for their slopes (i.e., -2/3 and -2/4) are the same.

learn more about parallel lines: https://brainly.com/question/24607467

#SPJ1

The complete question goes thus:

Which statement is true about the lines 3−2=27 3 y - 2 x = 27 and 4−2=36 4 y - 2 x = 36 ?

A. lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel to each other

B. lines 3 y - 2 x = 27 and 4−2=36 are inequalities

C. lines 3−2=27 and 3 y - 2 x = 27 are the same

D. all lines are equal