- 7th Grade Work -

Am I doing this correctly?

Answer:

i think its 2400 square metres

Step-by-step explanation:

Answer:

3656.64 m^2 to nearest hundredth.

Step-by-step explanation:

Area = area of rectangle + area of a circle

The radius of the circle = 1/2 * 40 = 20.

Area = 40*60 + π*20^2

= 3656.64 m^2.

Answer:  115

Divide 833.75 by 7.25

Answer:

..........???

Step-by-step explanation:

I'm confused...... sorry for taking your points

Answer:

9697

Step-by-step explanation:

16,709-7012=9697

Answer:

red= circumfrence

black= diameter

green= radius

yellow= area

Step-by-step explanation:

Answer:

red goes with diameter

Answer:

Step-by-step explanation:

The probability of picking an item A in a box of N items depends on nA, the amount of items A in the box at the time of picking, with the kinda instinctive value:

p = nA / N

then it means that if you have no green ball, the probability is 0/N = 0, if you only have green balls, it means you have a probability of N/N = 1 = 100%, and if you have as many green balls as non-green balls, you have a probability of nA/(2nA) = 0.5 = 50%.

Here the probability of first picking a green ball (nG=5) in a box of N=3+5+2+6=16 for the 1st pick is:

pG1 = 5/16

Now the trick here is that once you picked the green ball, you put it back in the box before picking another ball. So you still have N=16 balls for the second pick, and the probability of picking a yellow ball (nY=6) for the 2nd pick is:

pY2 = 6/16 = 3/8

(it would have been slightly higher, at 6/15, if you did NOT put back the green marble in the box).

Now you want BOTH events to be true. So you want G1 to be true AND Y2 to be true. The two events are independent (the probability of Y2 is 6/16 if you had G1 but is also 6/16 if you failed G1), so the probability of having both is simply done by multiplicating them:

pG1Y2 = pG1 * pG2 = 15/128

Answer:

A

Step-by-step explanation:

Answer:

228

Step-by-step explanation:

is it a rectangle prism?

if so, do This:

2(lb+hb+hl)

Length - 6

width = 4

height = 9

2(24+36+54)

2 ( 114)

= 228

I hope this helps!

Answer:

first thing is first u have to do 5+2 =7 then do 8+4=12 your answer will be 7/12

Step-by-step explanation:

Answer:

[tex]x = 1[/tex]

[tex]y=z[/tex]

Step-by-step explanation:

[tex]xy = z\\zx = y[/tex]

Substitute [tex]z[/tex] and [tex]y[/tex] back into the equations.

[tex]xyx =y\\x^2y=y\\x^2=1\\x=\sqrt{1} = 1[/tex]

[tex]z(1) = y\\z=y[/tex]

We cannot find [tex]z[/tex] and [tex]y[/tex] as we don't have enough information.

Answer:

Es igual a 28,26 centímetros2.

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

So what you need to find is the scale factor which is the scale of the difference between two lengths.

So Figure A is smaller than Figure B, as can be easily detected with our eyes.

Figure A has a ratio of 1/2, as 6/12 is equal to 1/2.

Since B is the original, where A is a scaled version, it must also have the same ratio of 1/2, so twice 9 is 18, which is your answer.

You can also use fractions, by making Figure A into 1/2 because 1/2 = 6/12.

Figure B can turn into 9/x.

Since you know they are scaled factors, they have the same ratio since one is scaled larger or smaller than from the original.

Since it must follow the multiplication of 2 for the side length, 9 x 2 gives your answer.

Answer:

a.) -20p - 2

Step-by-step explanation:

Answer:

$268.38

Step-by-step explanation:

First we will take off the 20% off the 315 dollars. SO we can do this by saying that the discounted price is 80% of the original price, (because 100 - 20 = 80). So 0.8 * 315 = 252. So 252 = discounted price. So then we have to add the tax price.

Sales tax is %6.5, so we can do 252*0.065 to find the tax payed. We get 16.38, so we can dd this to our discounted price to get 252 + 16.38, or $268.38

Answer:

36

Step-by-step explanation:

1/3y = 12

12 x 3 = 36

y = 36

Answer:

y=4

Step-by-step explanation:

bring the y by the 1/3 down , turn the 12 into a fraction so it will b 12/1 so u would do 1/3 devided by 12/1 so it would b y=4

Answer:

(0,-7)

(1,-9)

(-1,-5)

(-2,-3)

Step-by-step explanation:

Your slope would be 2/3

I think this is right. Let me know if you know the formula and i can explain it to you!

Answer:

32

Step-by-step explanation:

8X4

Answer:44.56637

Step-by-step explanation:

12.56637+32=44.56637

Answer:

1. SAS

2. SSS

3. ASA

4. AAS

5. RHS

Answer: your answers would be

1, SAS

2, SS

3,SAS

4, SAA

5, SAS

6, SA

7, SAS

8, SSS

9, SSA

10, ASA

11, SSS

12. ASA                                                                                                                    Explanation: A shape is congruent when it's all sides are the same SSS but also the shape's side and angle could also be counted as congruent. it can  be like this ASA, SAS, HL, and AAS are a theorem of Congruent but not AA, SS, SSA, AS and AAA this is because They have only two side congruent we don't know the 3rd side. Also SSA is not congruent because we don't know if the unknown side is equal another thing is SSA spelled back word is A## so lets just leave it at that