pls help me with this friends

Answer:

The scale factor is k = 1/30

a)

The length of the wing on the model:

b)

The area of the tail section of the plane:

Answer:

The real plane's tail section is 2400 cm^2

Step-by-step explanation:

Well since the model is 1/30 of the real planes size

By multiplying the area of the tail section by 30 we should get the area of the real tail section in the plane

80*30= 2400 cm^2

The real plane's tail section is 2400 cm^2

(A) (4, 6)

Step-by-step explanation:

Since the 2nd stage light is above P, then its x-coordinate is also the same as that of P, which is 4. We know that there are 2 units per grid and since the 2nd stage is 8 units above P, the conversion to the number of grids is

[tex]8\:\text{units}×\dfrac{1\:\text{grid}}{2\:\text{units}} = 4\:\text{grids}[/tex]

So count 4 grids above the location of P, which is (4, -2) and you will get the coordinate (4, 6).

Answer:

d1 = -1.5

dn = dn-1 *-4

Step-by-step explanation:

-1.5, 6, -24,96

The first terms is d1

d1 = -1.5

To find the common ratio divide the second term by the first term

6/-1.5 = -4

Check 6*-4 = -24

-24*-4 = 96

dn =dn-1 * -4

Answer:

D (1) = -1.5        

D (n)= dn-1 *-4

Step-by-step explanation:

I know ;) hope this helps.

Answer:

Let the height of the larger box = h

and length and width of the larger box = l and w , repectively

Now , Let find the volume of the larger box

Volume = length * width * height

So Volume of the larger box = l*w*h = lwh

Now the question says

the height of the smaller box is 80% of the height of the larger box

It means

Height of the smaller box = 80% of h = 0.80*h = 0.80h

and the other two dimensions are same so it means length and width of the smaller box = l and w

so, Volume of the smaller box = l*w*0.80h = 0.80lwh

So the Difference in the volume of the two boxes = Volume of larger box - Volume of smaller box

therefore , Difference in the Volume of two boxes = lwh - 0.80 lwh = 0.20lwh

Step-by-step explanation:

Answer:

-5 = m

Step-by-step explanation:

17 - 12m = -11(m-2)

Distribute

17 -12m = -11m +22

Add 12m to each side

17 -12m+12m = -11m+22+12m

17 = m+22

Subtract 22 from each side

17 -22 = m+22-22

-5 = m

[tex]\underline{\sf \: 17 - 12m = -11(m-2)}[/tex]

Use the distributive property to multiply -11 by m-2.

17 - 12m = - 11m + 22

Add 11m to both sides.

17 - 12m + 11m = 22

Combine -12m and 11m to get -m.

17 - m = 22

Subtract 17 from both sides.

- m = 22 - 17

Subtract 17 from 22 to get 5.

- m = 5

Multiply both sides by -1.

[tex]\large\boxed{\underline{\bf \: m = -5}}[/tex]

Hope it helps.

RainbowSalt2222

Answer:

7%

Step-by-step explanation:

To convert decimals to percentage, multiply by 100.

0.07 x 100 = 7

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

60 textbooks

Step-by-step explanation:

1) 56*15:14=60

Answer:

60 textbooks

Step-by-step explanation:

To get the answer, you have to divide 56 by 14/15. What I'd do is id think of 56  

as 56/1. I'd change 14/15 into a multiplicative inverse/reciprocal, ending up with 15/14. From there, id multiply 56/1 and 15/14, ending up with 840/14.Using long division, id do 840 divided by 14, ending up with 60.

Answer:

Surface Area = 392 cm²

Step-by-step explanation:

Green (front):

SA = 1/2bh

= 1/2 (12) (8)

= 48 cm²

Green (left side):

SA = bh

= 5 (10)

= 50 cm²

Green (right side):

SA = bh

= 5 (10)

= 50 cm²

Green (back):

SA = 1/2bh

= 1/2 (12) (8)

= 48 cm²

Blue (front):

SA = bh

= 12 (4)

= 48 cm²

Blue (left side):

SA = cm²

= 5 (4)

= 20 cm²

Blue (right side):

SA = bh

= 5 (4)

= 20 cm²

Blue (back):

SA = bh

= 12 (4)

= 48 cm²

Blue (bottom):

SA = bh

= 12 (5)

= 60 cm²

Total:

48 + 50 + 50 + 48 + 48 + 20 + 20 + 48 + 60 = 392 cm²

Answer: a. 5^42 and b 9a^6

Step-by-step explanation:

a. (5^3+4)^6

(5^7)^6 = 5^42

Answer:

To find the mode for a set of numbers, find the number that is seen most often in the given dataset.

Step-by-step explanation:

For you to understand what I am talking about, I will give you an example:

48, 56, 7, 12, 40, 13, 39, 70, 7, 81, 83, 88, 100, 10, 0, 87

For this set, 7 is the mode because it's seen 2 times in the set while all the other numbers are seen only 1 time.

I hope it helps you!

- Rose Cordelia

Answer:

[tex]7(2x + 6) = 1 \\ 14x + 42 = 1 \\ 14x = - 41 \\ x = - 2 \frac{13}{14} [/tex]

Answer:

4+2

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Use cross multiplication

Answer:

24

Step-by-step explanation:

Answer:

4(3y+4)

Step-by-step explanation:

12y + 16

4*3*y +4*4

Factor out 4

4(3y+4)

Answer:

2(6y+80) = 12y+160

4(3y+4) = 12y+16

28y = 28y

16+12y = 12y+16 (did not use distributive property)

So,  B is correct.

Let me know if this helps!

Answer:

1/9 or 3^-2

Step-by-step explanation:

Ignore the value of 1/3 for now and just focus on the 3^2.

Find 3^2:

3*3 = 9

Now 9 is the denominator, therefore our answer would be 1/9 once you reassemble the fraction.

Because 1/9 is our new fraction, we can use a negative exponent to create the same result. This is because the negative exponent rule tells us that a number with a negative exponent should be put to the denominator. Therefore we can then use 3^-2.

Answer:

3^-2

Step-by-step explanation:

Answer:

y=15x+25, the cost is 205 dollars

Step-by-step explanation:

The simplest way to write a rule for this is to write it in slope intercept form, y=mx+b. Let y represent the cost of the membership. Every month the cost is 15 dollars. If we let x represent the months we can rewrite this as 15x. The one time cost is 25 dollars so we can just add that to the end of the equation. y=15x+25. There are 12 months in a year so we just have to substitute. y=15(20)+25=205 so the answer is 205 dollars.

Answer:

A hostel has provision for 45 students for 30 days.If 15 more students joined the hostel after 6 days,how long will provision last?

Answer:

It's the second answer

Step-by-step explanation:

It's the second question because the pattern is that the amount of food coloring is always 3 times more then the amount of frosting so it's point M because the amount of frosting is 50 so the amount of food coloring has to be 150 according to the ratio.

Answer:

40.5 ft²

Step-by-step explanation:

*First we’ll split the shape into multiple smaller ones. The two ends make separate triangles while the middle makes a rectangle. From there you can solve for their areas.

*Each triangle is the same size, so when solving them, the area of one can just be duplicated. To find the height of each triangle, we take the total base of 8 ft and subtract the top 5.5 ft to get 2.5 ft. After that you’ll divide by 2 (for each triangle) so the height of each one is 1.25 ft.

Triangle:

A = 1/2bh

A = 1/2 (6) (1.25)

A = 3.75 ft²

Both triangles:

A = 3.75 (2)

A = 7.5 ft²

Rectangle:

A = lh

A = 5.5 (6)

A = 33 ft²

Total:

A = 7.5 + 33

A = 40.5 ft²

Answer:

Step-by-step explanation:

The shape can be broken down into 2 identical triangles and one rectangle.

Area of 2 triangles= 2(1/2×base×height)

= 2(1/2×6×2.5) = 15ft²

Area of Rectangle = length × breadth

= 6 × 5.5 = 33ft²

Area of figure = Area of 2 triangles + Area of Rectangle

= (15 + 33) ft² = 48ft²

Answer:

31/250

Step-by-step explanation:

12.4% as a fraction

lets get rid of the decimal by multiplying it by 10 = 124

Since we multiplied 12.4 by 10, we multiply 100 by 10 as well

124/1000 = 62/500 = 31/250

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

43 / 2  = 21  1/2 = 21.5

Step-by-step explanation:

7+(10-4)^2/ 4 (12)        you can either multiply by  4(1/2)/4(12) or do the following

Subtract 4 from 10 to get 6.

7+6^2 / 4×(  1/2)  

Calculate 6 to the power of 2 and get 36.

7+36 / 4×(  1/2  )  

Add 7 and 36 to get 43.

43 / 4× 1/2  

 Multiply 4 and    1/2   ​ to get 2.

43 / 2  = 21  1/2 = 21.5

​

Answer:

m= -5

Step-by-step explanation:

remove the parentheses

move the terms

collect light terms

calculate

change the signs

Answer:

Don't Know sorry :(