i need help on math ​

Answer:

area of circle = 78.55 cm²

Step-by-step explanation:

area of circle

= πr²

= 3.142 × 5²

= 3.142 × 25

= 78.55 cm²

Answer:

dawn has $ 1,670 in account 1 and $ 1,570 in account 2

Step-by-step explanation:

Answer:

1,670 in account 1 ; 1,570 account 2

Step-by-step explanation:

1x - 1y = 100           X=7           7x-7y= 700

3/8x + 7/8y= 2000      X=8     3x+7y= 16000

                                                10x = 16700

Answer:

the single decimal multiplier is 1.0058

Step-by-step explanation:

Let us have 100

Decreasing by 6% will be

100 - 0.06(100)

= 94

Increasing by 7%

= 94 + 0.07(94)

= 100.58

So

to get the single decimal multiplier,

we have 100.58/100 = 1.0058

Answer:

7:5 is the same as 21: 15

Step-by-step explanation:

21/7 = 3 and 3*5=15

i divided 21 by 7 to see how many times it was multiplied to get there, so i could do the same thing to the 5

I hope this helps :)

Answer:the answer is 15

Step-by-step explanation:

I got it right lol

Answer:

The most common methods are wind, water, animals, explosion and fire. Dandelion seeds float away in the wind.

Step-by-step explanation:

Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds.

Answer:

Seeds with wings

Hitchhikers

Going with the flow

help from animals

Step-by-step explanation:

Answer:

B. Positive slope

Step-by-step explanation:

The line on the graph is positive, as it grows from left to right.

Answer:

Positive Slope

Step-by-step explanation:

The line goes up, which means that it's positive. To be exact the line equation is y = 3x + 1. The slope (3) is positive, which proves that its a positive slope, not negative.

Answer:

625

Step-by-step explanation:

Answer:

25×25

25

× 25

______

125

+ 500

_______

625

Answer:

Nectarines

Step-by-step

Answer:

HERE

Step-by-step explanation:

30x + 22y=130

Answer:

x = -4

Step-by-step explanation:

-79 = 7x+12x-3

-79 = 19x-3

-19x = 76

x = -4

Answer:

x = -4

Step-by-step explanation:

7x + 3(4x) + 3(-1) = -79

7x + 12x - 3 = -79

19x - 3 = -79

19x = -76

x = -4

Answer: y = 8x

3 x 8 = 24

5 x 8 = 40

8 x 8 = 64

Answer:

Length of ladder =L =15

Distance from wall = D =9

Height on wall = H =??

Pythagoras equation L*L = D*D + H*H

15×15= (9×9) + H×H

225-81 = 144 =HxH

H= 12 feet.

I am right or wrong

please check

Answer:1$ cards = 11 cards 3$ cards= 13

Step-by-step explanation:the first equation is -x-y=-24 and the second is x+3y=50. Solving them as a system will get 2y=26 to y=13 then plug in 13 to the y for -x-y=-24 to get 11. Mr jacobs is hard I know lol. Use elimination by subtraction and keep the first equation as x+y=24 and then flip to negative

Answer:

The area of square is 49 feet²

Step-by-step explanation:

Length of side of square = 7 feet

We need to find area of square.

The formula used to find area of square is:

[tex]Area\:of\:Square=Length\times Length[/tex]

Putting values and finding area of square.

[tex]Area\:of\:Square=Length\times Length\\Put\:Length=7\\Area\:of\:Square=7\times 7\\Area\:of\:Square= 49[/tex]

So, area of square is 49 feet²

Answer: 3,4,5

Step-by-step explanation:

5² = 3² + 4²

25 = 9 + 16

25 = 25

The set of numbers 3, 4, and 5 describe the side length of a right triangle.

Option C is the correct answer.

Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

We have,

Set of numbers:

1, 2, 3

2, 3, 4

3, 4, 5

4, 5, 6

We need to find the set of numbers that describe the side length of a right triangle.

We will apply the Pythagorean theorem to all the sets of numbers.

Using 1,2,3.

1² = 2² + 3²

1 = 4 + 9

1 = 13

2² = 1² + 3²

4 = 1 + 9

4 = 10

3² = 1² + 2²

9 = 1 + 4

9 = 5

This is not true.

Similarly,

Set of numbers: 2,3,4 and 4,5,6 are not true.

Using 3, 4, 5

5² = 3² + 4²

25 = 9 + 16

25 = 25

This is true.

Thus,

The set of numbers 3, 4, and 5 describe the side length of a right triangle.

Option C is the correct answer.

Learn more about the Pythagorean theorem here:

https://brainly.com/question/14930619

#SPJ2

Answer:

58.29 cm²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h (a + b) , substitute given values into formula

A = [tex]\frac{1}{2}[/tex] × 6.7 × (7 + 10.4)

   = 3.35 × 17.4

   = 58.29 cm²

Answer:

Yes

Step-by-step explanation:

In mathematics, a function is a binary relation between two sets that associates every element of the first set to exactly one element of the second set. Typical examples are functions from integers to integers, or from the real numbers to real numbers.

Answer:

Yes, it is a function.

Step-by-step explanation:

use verticle line test

because every y-value only goes to one x-value it passes a verticle line test and is a function

Answer:

B

Step-by-step explanation:

Answer: B (2,1)

Step-by-step explanation:

Answer:

a rock i think

Step-by-step explanation:

its layers and wavy probably claystone or sandstone

Answer:

d is correct

Step-by-step explanation:

Answer:

There will be exactly 320 apples after 3 years.

Step-by-step explanation:

200 + 60 , 3 times.

  200    amount of apples a tree produces every year

+   60    increasing amount

------------

  260    the amount of apples increases by 60 after each year.

+   60     increasing amount

------------

  320 apples after 3 years

Answer:

16 meters

Step-by-step explanation:

you literally gave the answer in the question unrounded

Answer:

5.87

Step-by-step explanation:

I figured it out. Do 10 x sin (36) to get the answer. I would explain, but it's kinda of hard to in this case.

Answer:

-5

Step-by-step explanation:

The common difference is

68-73

-5

Answer: 400

Step-by-step explanation:

From the question, we are informed that the probability of getting a 6 is 4/5 and that the dice is rolled 500 times.

The number of sixes that would be expected to roll will be 4/5 multiplied by the number the dice is rolled

= 4/5 × 500

= 400

There'll be 400 sixes.

Answer:

-95/87

Step-by-step explanation:

Formula to find slope: (y2-y1) / (x2-x1)

In this problem y2 is -3 and y1 is 92. x2 is 97 and x1 is 10.

We substitute these numbers into the equation.

(-3-92) / (97-10)

Then we simplify this by subtracting.

-95/87 is our final answer.

Answer:

I have the same question but no one will help me they are mean

Step-by-step explanation:

Answer:

120, 15

Step-by-step explanation:

Answer:

15,120

Step-by-step explanation:

x-axis-15(read vertically)

y-axis-120(read horizontally)

Answer: the one you have selected is correct.

ACE = 90

Answer:

AEC es 90

Step-by-step explanation:

you're already correct