Please help I need all the answers not only one.

Answer:

The area is 2,000 cm2

Step-by-step explanation:

The answer is that because Area is when you multiply the length times the width ( l x w ). The length is 40 cm and the width is 50 cm and when you multiply them, you will get 2,000 cm2.

Hope that helps. If you get it wrong, please let me know so I could check my work. Thank you and have a great rest of your day :) !

Answer:

a)1017.88 cm³

b)63.62 cm² (corr. to 2 d. p.)

c)452.39 cm²  (corr. to 2 d. p.)

d)579.63 cm²

Step-by-step explanation:

a) Volume = π x r x h = π x (9/2) x 16 = 1017.88 cm³

b) area of tin is used = circle = π x (9/2)² = 63.62 cm² (corr. to 2 d. p.)

c) area of cardboard is used = 2 x π x (9/2) x 16 = 452.39 cm²  (corr. to 2 d. p.)

d) total area surface = 2(63.62) + 452.39 = 579.63 cm²

Answer:

1,124.49

Step-by-step explanation:

Answer:

1000 + 100 + 20 + 4 + 0.4 + 0.09

Step-by-step explanation:

Answer:

7x + 33

Step-by-step explanation:

Distribute the multiplication in the last term:  5(x + 6) becomes 5x + 30.  Then,  2x + 3 + 5(x+ 6) becomes 2x + 3 + 5x + 30.  2x and 5x are 'like terms' and add up to 7x; 3 and 30 are also like terms of a different type (constants) and add up to 33.  

Thus we have the equivalent, simpler expression 7x + 33.

Answer:

13x 5y

Step-by-step explanation:

Answer:

These methods convert everything to radians

Step-by-step explanation:

Length of arc DC fromula is radius*angle in radians

Radius of the circle of DC is 8 cm aka the outer circle.

The angle inside is 130 degrees, in radians convert and multiply by 180/[tex]\pi[/tex]

givong 130 degrees to be 13/18π

using formula, arc DC is 8*13/18π

=52/9π (in terms of pi) or 18.15 cm

or 130/360*(2π8)=18.15 (not using radians)

Length of arc QT regards the inner circle of radius 4 cm. Convert 130 degrees to radians. Using same formula as above, length of arc =4*13/18π

=26/9π or 9.08 cm

or 130/360*(2π4)=9.08 (not using radians)

Area of sector DEC suspended angle is 130 degrees of 13/18π radians. regarding large outer circle radius 8 cm.

Use formula 0.5*r^2*angle in radians fro area of sector gives:

0.5*8^2*13/18π

=208/9π or 72.61 cm^2

or 130/360*(π8^2)=72.61 (not using radians)

The area of sector QET angle 13/18πv rad and radius 4 cm using same forumla as above gives

0.5*13/18π*4^2

=52/9π or 18.15cm^2

or 130/360*(π4^2)=18.15 (not using radians)

Radian measure of angle DEC is 130 degrees again convert to radians by multiplying by π/180 gives

=13/18π

Radian measure of angle QET IS ALSO 130 degrees also

=13/18π

Answer:

B

Step-by-step explanation:

EDGE

Answer:

1734.85

Step-by-step explanation:

Answer:

the correct answer is 1,734.85cm2

Step-by-step explanation:

i did the assignment and got it right

Answer: y = 5.25x

Step-by-step explanation:

The cost of one pound of cheddar cheese is $5.25.

The number of cheese purchased is x.

The total cost of cheese would therefore be the cost of one pound of cheese multiplied by the number of pounds of cheese purchased:

= 5.25 * x

Full expression is therefore:

y = 5.25 * x

y = 5.25x

Answer:

No it does not

Answer:

It does not represent a function

Step-by-step explanation:

The values of x and y don't vary.

Answer:

f(x)= -3x² - 12x - 5

Step-by-step explanation:

-3(x+2)² + 7

-3(x+2)(x+2) + 7

(-3x-6)(x+2) + 7

-3x² - 6x - 6x - 12 + 7

-3x² - 12x - 5

Answer:

Step-by-step explanation:

Remark

I hope you don't mind if I laughed a little at the graph. The y intercept of the line is at 10 dollars, but the rental car has not moved an inch. I guess they're charging you to look at your driver's license. It's late, and maybe I am a little giddy.

Begin by using a ruler (or some other straight edge) to join all the dots.

a) I'll spend a little time here. It is very important that you know how to read a chart and this question is your first step. The question is how many dollars does it take to go 40 miles? There is a system. Start with the 40 miles on the horizontal axis (x axis if you know that that is).

Use a ruler to go straight up until you hit the line.

b) This question is a guess.

c) This question is the exact reverse of the other two.

Answer:

25%

Step-by-step explanation:

Percentage change is the difference between the new price and the old price, divided by the old price.  Finally, multiply by 100 to convert the decimal answer to percent.

Difference in prices (new - old):  95 - 76 = 19

Divide by old price:  19/76 = .25

Multiply by 100%:  .25 x 100 = 25%

Answer:

the paper need to be 16 inches

Answer:

Cost (10 guests ) = 50

Step-by-step explanation:

Given : Cost c = 10 + 4g (g refers to guests)

Equation : c = 10 + 4g

Putting no. of  guests 'g' = 10

c = 10 + 4 (10) = 10 + 40

c = 50

Answer: 960 cm cubed.

Explanation:

The formula is 1/2 * l * w * h

So, 1/2 (12) (10) (16) = 960

Hope it helps :)

Answer:

a) Yes

b) No

c) No

d) Yes

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

Answer:D. -7x+7y=-49 matches this graph.

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

The image provided below, I find very helpful when trying to solve difficult problems such as this one.

We use the same relationship, the only difference is we are given expressions and numbers for the segments

If the product of the segments in one chord equal the product of the segments in the other chord then,

x * 6 = 8 * ( x - 1 )

Or 6x = 8 ( x - 1 )

Now we solve for

Step 1 distribute the 8

8 * x = 8x

8 * -1 = -8

We now have 6x = 8x - 8

step 2 subtract 8x from each side

6x - 8x = -2x

8x - 8x cancels out

we now have -2x = -8

step 3 divide each side by -2

-2x / -2 = x

-8 / - 2 = -4

we're left with x = 4

Answer:

C i think

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

21^2 + b^2 = 29^2

441 + b^2 = 841

Subtract 441 on both sides to get b^2 = 400

Take the square root of both sides to get b = 20

Answer:

the second one

Step-by-step explanation:

Answer:

The median score will stay at 91.

Step-by-step explanation:

First put the numbers in order from greatest to least:

87, 88, 91, 91, 95, 100

Then find the median (middle) because there are two in the middle that are the same, it's just that number.

Next, add the other numbers.

86, 87, 88, 88, 91, 91, 95, 98, 100, 100

Find the median again, which is still 91.

Answer:

m1 = 62.5

m2 = 62.5

m3 = 55°

m4 = 75°

m5 = 50°

Step-by-step explanation:

m1: Sides 1 and 2 are congruent so angle will be the exact same as m2:

180° - 55° = 125 | 125 / 2 = 62.5°

m2: same as m1; 62.5°

m3: equivalent to 55° due to its location

m4: angle of a line is 180° so 180° - 105° = 75°

m5: angles of triangle add to 180° so 180° - (75° + 55°) = 50°

Step-by-step :

-9-(-1)

-9+1=-8

Answer:

All you have to do is just add the numbers inside the parenthesis. (4+-2) is the same as 4-2 which is equal to 2. (4+-6) is the same as 4-6 which is equal to -2.

Step-by-step explanation:

If this has helped please mark as brainliest

Answer:

Step-by-step explaination

-2 + 4 is 2 4+ -6 is -2

Answer:

ten millions

Step-by-step explanation: