a model airplane is built using the scale 2 inches = 7 feet. how long is the actual plane of the model airplane is 1.5 feet long?

Answer:

$6

Step-by-step explanation:

let x and y be the number of chip and pretzel bags respectively  : 4x%2B2y%3 C=20 : if x=1 then 4%281%29%2B2y%3C=20--->{{2y<=16}}}--->y%3C=8  : if x=3 then 4%283%29%2B2y%3C=20--->{{2y<=8}}}--->y%3C=4  : so chips 1 and pretzels 8  : chips 3 and pretzels 4.

Answer:

I'm pretty sure it (a)

Step-by-step explanation:

I learned it as you eat the larger number

Answer:

ll

Step-by-step explanation:

square root of 121 is 11 since 11x11=121

Answer:

y = x² + 10

Step-by-step explanation:

Answer:

a. 5,040 ways

b. 210 ways

Step-by-step explanation:

a) We want to pick 4 numbers out of 10 given that orders matter

If orders do matter, it will be a permutation problem

Mathematically;

n P r = n!/(n-r)!

In this case, n is 10 and r is 4

Thus, we have it that;

10 P 4 = 10!/(10-4)! = 5,040

b) if orders do not matter

It will be a combination problem

n C r = n!/(n-r)!r!

n = 10 and r = 4

10 C 4 = 10! /(10-4)!4!

= 210

Answer: a reflection across the x-axis

Answer:

22 + 4x = 90

4x = 68

x = 17

Step-by-step explanation:

Answer:

90-22=68.   68/4 is what?

Step-by-step explanation:

Answer:

The population in 2015 will be 165 million.

Step-by-step explanation:

The exponential growth formula is given by:

[tex] f(t) = a(1 + r)^{\Delta t} [/tex]

Where:

a: is the initial population

r: is the rate of increase

Δt: is the time        

With the initial information we can find the rate:

[tex] 151 = 145(1 + r)^{1998-1990} [/tex]      

Using logarithm:                                    

[tex] ln(151) = ln(145) + 8[ln(1 + r)] [/tex]  

[tex] ln(1 + r) = \frac{ln(151) - ln(145)}{8} [/tex]                        

[tex] ln(1 + r) = 5.0683 \cdot 10^{-3} [/tex]          

Using exponential:          

[tex] e^{ln(1 + r)} = e^{5.0683 \cdot 10^{-3}} [/tex]

[tex] r = 5.081 \cdot 10^{-3} [/tex]        

Now, we can find the estimated population in 2015:

[tex] f(t) = 151(1 + 5.081 \cdot 10^{-3})^{2015-1998} [/tex]              

[tex] f(t) = 165 [/tex]              

Therefore, the population in 2015 will be 165 million.

I hope it helps you!

Answer:

Value = 44,0000(0.75)^t

Where t = number of years

Value after 4 years = 44,000 (0.75)^4

Answer:

[tex]\frac{(x + 1)(x - 2)}{x^{2} + 5}[/tex] This is the third option.

Step-by-step explanation:

Dividing a fraction is the same as multiplying the reciprocal of the second fraction.

[tex]\frac{x + 1}{x + 4}[/tex] × [tex]\frac{(x + 4)(x - 2)}{x^{2} + 5}[/tex]

[tex]\frac{(x + 1)(x + 4)(x - 2)}{(x + 4)(x^{2} + 5)}[/tex]  Here, we can just get rid of the (x + 4) because it is common in both the numerator and denominator so they cancel each other out.

So the answer would be [tex]\frac{(x + 1)(x - 2)}{(x^{2} + 5)}[/tex] .

I hope this makes sense!! ^-^

Answer:

To roll the 4 is 1/6 and landing heads twice is 1/4 and 1/6 x 1/4 and the probability of him doing that would be 0.04166666666% chance

Step-by-step explanation:

Answer:

s=ut +atsq/2

120=4u+4sq

4u=104

u=26m/sec

Answer:

26 m/s

Step-by-step explanation:

Given

[tex]s = ut + \frac{1}{2} {at}^{2} [/tex]

When a = 2 , s = 120 and t = 4

Then

[tex]120 = u \times 4 + \frac{1}{2} \times 2 \times {4}^{2} \\ 120 = 4u + 16 \\ 120 - 16 = 4u \\ 104 = 4u \\ u = \frac{104}{4} \\ u \: = 26

Hope it will help :)❤

Answer:

A. Voters age 40 and over are least likely to favor road expansion.

Answer:

228

Step-by-step explanation:

ANOTHER QUESTOIn?

Answer:

24 mugs

Step-by-step explanation: 18.88/0.76 = ≈24

Answer:

24 mugs

Step-by-step explanation:

Disregard unimportant information

Set up an equation

Variable x = number of mugs

18.88 = 0.76x

Divide both sides by 0.76 to isolate variable x

24.842...

There's no such thing as a fraction or decimal of a mug so round down to the nearest whole number

24

Answer:

Answer should be 5/2 I thinkkkkk

Answer:

2.5 or can be 5/2

Step-by-step explanation:

Answer:

15

Step-by-step explanation:Addentitive property states that any number added with 0 is the original number. so, 15+0=15

Answer: 200

Step-by-step explanation: 36 by 100 and then divide the total by 18 as follows: (36 x 100) / 18 For 200

Answer:

200

Step-by-step explanation:

:/

I hope

Answer:

i think the answer is d

hpe it helps

Answer:

b

Step-by-step explanation:

0 lol this is funny thanks for free points

Answer:

I think its zero but I'm not sure dude

hope this helps :)

Answer:

x= 8.69

Step-by-step explanation:

tanx = opp/ adj

tan44° = x/9

x= tan44° * 9

*make sure your calculator is in degree mode

x= 8.69

Answer:

A. 45

B. 60

C. 65

D. 121

2. 108

3.

4. 8

5. 104

6. 132

7. 24

8. 38

9. 65

Step-by-step explanation:

Area of rectangles is L*W while right triangle is lw/2

Answer:

1,500

Step-by-step explanation:

Answer:

It is J hope this helps! :)

Answer:

Statements:

1. BE BISECTS AD

2. AB ll DE

3. AC =~ DC (SIDE)

4. <BAC =~ <CED (ANGLE)

5. AB =~ DE (SIDE)

6. TRIANGLE BCA =~ TRIANGLE DCE

7. BC =~ EC

Reasons:

1. Given

2. Given

3. Def. of 1st given

4. Alternate interior angles

5. Parallel lines are congruent (or def. of 2nd given)

6. SAS (side angle side)

7. CPCTC (coresponding parts of congruent triangles are congruent)

Answer:

x=-18

Step-by-step explanation:

Answer:

x = -18

Step-by-step explanation:

5 - x = 23

5 - 5 - x = 23 - 5

-x = 18

-1x / -1 = 18 / -1

x = -18

Hope this helps and stay safe, healthy, and happy, thank you :) !!