j divied by 9 is 5, from khan akadamy

Answer:

greater

Step-by-step explanation:

the reason is because if you allow x to have a value that is less than 3,

[tex] \sqrt{x - 3} [/tex]

will produce a square root of a negative number, and the square root of a negative number requires the use of imaginary numbers, therefore limiting x to greater than or equal to 3 prevents this, also, consideration should be given to the fraction

[tex] \frac{3}{x + 2} [/tex]

if x has a value of -2 it causes the denominator of the fraction to be 0, the denominator should never be 0, by limiting x to greater than 3 to prevent the problem above you are already taking care of x not being able to be -2 since greater than 3 already excludes -2

Answer:

(half of base)² + (height)² = (20)²

Step-by-step explanation:

In an isosceles triangle, the angle bisector from the 3rd angle to the opposite side is a perpendicular bisector, so you split the isosceles triangle into two congruent right triangles.

This technique of 'splitting the isosceles' is used a LOT.

Answer:

270 seconds

Step-by-step explanation:

Melissa's time = x seconds

Abby's time = (x + 30) seconds

Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.

But, speed = [tex]\frac{distance}{time taken}[/tex]

For Abby,

8 = [tex]\frac{distance}{(x + 30)}[/tex]

distance = 8(x + 30) ................. 1

for Melissa,

9 = [tex]\frac{distance}{x}[/tex]

distance = 9x ............. 2

From equations 1 and 2, for the same distance;

8(x + 30) = 9x

8x + 240 = 9x

x = 240 seconds

Abby's time = (x + 30)

                    = (240 + 30)

                    = 270 seconds

So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.

The time taken is 270 seconds.

Given that,

Based on the above information, the calculation is as follows:

8(x + 30) = 9x

8x + 240 = 9x

x = 240

So Abby time should be

= 240 +  30

= 270

Learn more: brainly.com/question/17429689

Answer:

Angle RTS

Step-by-step explanation

Say it out loud it goes, RS, ST.

If you put RS and ST together the angle RTS

Answer:

Step-by-step explanation:

There are more adults than children so the ratios made have to depict this.

These ratios should add up to 16.

Three different ratios:

11 adults : 5 children

9 adults : 7 children

13 adults : 3 children

The above will all add up to 16 and show more adults than children.

The different ratios of adults to children that might be on the bus is;

14 : 2, 13 : 3, 12 : 4, 11 : 5, 10 : 6, 9 : 7

We are given;

The people on the bus consist of adults and children.

We are told that;

Thus, the different possibilities for ratio between

adults and children will be 2 numbers that add up to 16 which must not be equal. Thus, we have;

14 : 2

13 : 3

12 : 4

11 : 5

10 : 6

9 : 7

Read more about ratios at; https://brainly.com/question/2784798

Answer:

You can figure out prime numbers by simply knowing that you can divide that number not more than one. For example, you could know that a prime number is 7 because you can only divide it once like 7 divided by 1. While for number 14, you can divide it twice which isn't a prime number because there is 14 divided by 2 and 14 divided by 1 which is more than one to divide. That's possibly an easy way to understand how to figure them out.

Answer:

B.) 1

Step-by-step explanation:

49 ÷ 7 = 9

Answer:

0.063

is the correct answer

Answer:

0.063

Step-by-step explanation:

Answer:

$50

Step-by-step explanation:

1. First you need to divide 70 by 7.

2. Your answer should be 10.

3. You then need to multiply the product, 10 by 5.

4. You answer should be 50 and because we are using this in a money situation the answer is $50.

Answer:

50

Step-by-step explanation:

Answer:

the second one

Step-by-step explanation:

because if you think it how it folds the second one doesnt form a tetrahedron.You can try it by drawing it in a letter then cutting it to see which forms a shape and which doesnt.

Answer:

length =25m

breadth =16m

area of rectangle =25*16

according to question

area of rectangle =Area of Square

Area of squre =400m

Side *Side =400m

(Side)=(20m)

Side =20m

Answer:

-1809 + 899i  or

-1809 + √-899

Step-by-step explanation:

foil method

i² = -1

Answer:

Linear, y=6x-21

Step-by-step explanation:

Graph the answer to get an idea of the shape: linear.

Use y=mx+b and m=y2-y1/x2-x1 to find formula

m=y2-y1/x2-x1=3-(-9)/4-2=12/2=6

y=6x+b

9=6(5)+b

9-30=b=-21

y=6x-21

Answer:

1300y^2+1400y+343

Step-by-step explanation:

Use FOIL to cancel out the products

Answer:

9

Step-by-step explanation:

We are given that

Cost of each banana=$0.90

Cost of each orange=$0.80

Ava have total money=$15

We have to find the number of each if Ava wants to buy an equal amount of bananas and oranges at most.

Let x be the number of each.

According to question

[tex]0.9x+0.8x=15[/tex]

[tex]1.7x=15[/tex]

[tex]x=\frac{15}{1.7}[/tex]

[tex]x=8.8\approx 9[/tex]

[tex]x=9(approximately)[/tex]

Hence, number of banana bought=9

Number of oranges bought=9

Answer:

2:3

Step-by-step explanation:

Answer:

1,-5

3,1

0,0

-2,-3

Step-by-step explanation

im not sure any of this is correct but i tried my hardest

Answer:

y = 12x

Step-by-step explanation:

From the question, we are told that a person consumes 12 gallons of water each day

Now, we want to complete an equation

From the question, x is the number of days and y is the amount of water consumed

Thus, mathematically, we have the equation as;

y = 12x

since in the first day, 12 gallons is consumed, the second will be 12 * 2 and so on

So the amount of water depends on rate number of days

Answer:

12

Step-by-step explanation:

I got it correct.

Answer:

36

Step-by-step explanation:

She kniited a blanket with a certain area with 4 balls.

The new blanket will 3x3 =9 times as much area, so 9 x4 = 36 balls of yarn

Answer:

Bx3=27 there are 9 blue marbles

Step-by-step explanation:

1: 121, 2: 59, 3: 59

This is for the first graph because if you look at the bottom half of a circle is 180 so since one is 121 you just have to subtract 121 from 180 and you have your answer

Answer:

A= 20 + 0.75*j

Step-by-step explanation:

Giving the following information:

You have $20 and earn $0.75 for each cup of orange juice you sell.

To calculate the total amount of dollars (A), we need to use the following formula:

A= 20 + 0.75*j

j= number of cups

For example, for 15 cups:

A= 20 + 0.75*15

A= $31.25

Answer:

Step-by-step explanation:

(x+9)² + (y-6)² = 9²

Answer:

3 whole pizzas left

Step by step explanation:

well if the quest take 2 out of every 5 wholes then u would be left with 3

                                    5                     5                                                          5

so u add then together and get [tex]3\\ 5[/tex] and add that 5 times

so u would get [tex]15\\ 5[/tex] and if u simplify u would have 3 whole pizzas left

:)

Answer:

m = 3+y/y-4

Step-by-step explanation:

Answer:

what rubbish can Youcould b emade

Answer:

A. 9.18 x [tex]10^{5}[/tex]

B.12002

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

y component=17 sin 81≈16.7907≈16.8