Math is hard please help, and explain i need to learn this.

Answer:

negitive

Step-by-step explanation:

Answer: -21 so Negative

Hope this helps!

9514 1404 393

Answer:

  30

Step-by-step explanation:

The ratios of corresponding sides in similar figures are proportional.

  x/18 = 45/27

  x = 18(45/27)

  x = 30

if it is x=y,29x+3=11x-2 then

29x-11x=-2-3,

18x=-5

,x=-5/18

Answer:

Step-by-step explanation:

2:     1:4 scale factor

4: 4/5 = x/15. 5x=60. x is 12

6: it's a 2:7 ratio. so x would be 8 and y would be 35

8... it's a 4:7 ratio, as both 52 and 91 are divisible by 13 so there's the scale factor

4/7=x+3/2x-1. 7x+21=8x-4

Like terms on both sides

x=25

Answer:

C

Step-by-step explanation:

I took the test

Answer:

2.25 hours per hose

Step-by-step explanation:

i think you can find it from there    

Answer:

666666600000

Step-by-step explanation:

Answer:

47 000

I hope this helps

Answer:

50,000 m²

Step-by-step explanation:

Answer:

The first graph is correct

Step-by-step explanation:

There are 3 numbers in the 0-9 range

There are 4 numbers in the 10-19 range

There are 2 numbers in the 20-29 range

There are 4 numbers in the 30-39 range

There are 2 numbers in the 40-49 range

There are 2 numbers in the 50-59 range

The only graph that has the correct information is the first graph

I hope that this helps :)

Answer:

5

Step-by-step explanation:

10 are striped so that only leaves 5 left that are not striped

Answer:

12.

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

just trust me it 2.5

Answer:I can’t answer there is no graph.

Step-by-step explanation:

Answer:

a.) yes

b.) no

c.) yes

d.) yes

Answer:No she did not she drove 336 miles

Step-by-step explanation:

Answer:368

Step-by-step explanation:

Answer:

1. 23

2. 5.83 (5.8 rounded)

3. 1.18 (or 1.2 rounded)

4. unsure how to solve, sorry

Step-by-step explanation:

your formula: a^2+b^2=c^2

1. 20^2+13^2=c^2

400+169=569

(take the square root of 569)

c=23

2. 15^2+b^2=17^2

225+b^2=289

(subtract 225 from both sides)

b^2= 34

(take the square root of 34)

b=5.83 (or 5.8 rounded)

3.  0.2^2+b^2=1.2^2

0.04+b^2=1.44

(subtract 0.04 from bot sides)

b^2=1.4

(take the square root of 1.4)

b=1.18 (or 1.2 rounded)

4. unsure how to solve, sorry

Answer:

x = -4. y= 2 is the answer

Step-by-step explanation:

-3x + 6(0) = 12

-3x=12

divide 12 by -3

-4

-3(0) + 6y = 12

6y= 12

12 divided by 6

2

Answer: y=1/2x+2

Step-by-step explanation:

Answer:

110

Step-by-step explanation:

well if she has 35 in her account already and she babysits for 3 weeks and makes $25 each week that would be 25 times 3 or 25+25+25=75 then you would add 75 to 35 witch is 110

Answer:

$3.6 = cost of a t-shirt

$10 = cost of a  sweatshirt

Step-by-step explanation:

Given:

10 t-shirts and 2 sweatshirts = $56.

5 t-shirts and 3 sweatshirts = $48.

x = cost of a t-shirt

y = cost of a  sweatshirt

Find:

Price

Computation:

10x + 2y = 56.......eq1

5x + 3y = 48........eq2

From 2 x eq2

10x + 6y = 96.........eq3

From eq3 - eq1

4y = 40

y = 10

from eq1

10x + 2(10) = 56

10x + 20 = 56

10x = 36

x = 3.6

$3.6 = cost of a t-shirt

$10 = cost of a  sweatshirt

Answer:

6 , 1

5 , 2

4 , 3

Step-by-step explanation:

Just swap the numbers.

Answer:

x (input) y (output)

     6             1

     5             2

     4             3

     3             4                

Step-by-step explanation:

Because it is the inverse of the red table, the blue table would be the opposite: (Answers are shown above)

I hope this helps :)

Answer:

-8x-4y

Step-by-step explanation:

distrubutive property

Answer:

midpoint of PQ will be at 4 units

Answer:

Scientists would look for new evidence.

Step-by-step explanation:

Anytime scientists have different interpretations, they carry out more experments to look for new evidence. But this is after they must have tested their own hypothesis. If non of these are possible, they set out to get fresh evidences. Having different opinions would make them come up with new ideas with hope that their theories are valid. And it would also make them carry out more experiments for confirmation or for denial.

Answer:

27 dollrs for c

76dollra for b

Step-by-step explanation: because you just multiply the 68 and 76 by how much they were for

Answer:

3.2 0w0, hope this helps!

Step-by-step explanation:

I did this before

The mean absolute deviation of kai's test scores is 3.2.

What is mean absolute deviation?

The mean absolute deviation of a dataset is the average distance between each data point and the mean.

According to the given question

We have

the given data 92, 88, 90, 96, 84

For calculating mean absolute deviation

we will first calculate mean

mean = [tex]\frac{92+88+90+96+84}{5} =\frac{450}{5} = 90[/tex]

Now we will calculate the distance between each data point and the mean :

Add the distances together

2+2+0+6+6 = 16

Divide the sum by number of data points.

MAD( mean absolute deviation ) = [tex]\frac{16}{5} =3.2[/tex]

Hence, the mean absolute deviation of Kai's test scores is 3.2.

Learn more about the mean absolute deviation here:

https://brainly.com/question/10528201?referrer=searchResults

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