You be Teacher your friend finds the difference. 3/2 - 9/2= 3/2 +9/2 =12/2 =6 is your friend correct? Explain your reasoning.

Answer:

21

Step-by-step explanation:

105/(1+4)

= 105/5

= 21.

Answer:

12,1.5,60

Step-by-step explanation:

Maya is mixing cups of pretzels and cups of cashews in a ratio of 3:2. She made a table of equivalent ratios to represent the situation. Fill in the blanks to complete the table. If the quantity is not a whole number, enter a decimal.

Pretzels (cups) Cashews (cups)

3 2

18  

12

A

1.5

B  1

90  

60

C

the correct answer of this question is 32 I mean the value of X is 32

Answer:

i don't know because i am not from yours school

Answer:

the digit two is in tens... so a) is the answer

Answer:

5x-20 =4x-20

5x-4x = -20+20

x= 0

Answer:

4/9

Step-by-step explanation:

ad(base)/2 = abc

4x(4y)/2 = 4xy/2 = 2xy

pm(base)/2 = pqr

9x*9y/2 = 9xy/2 = 4.5xy

2xy/4.5 xy = 2/4.5 = 4/9

I'm not really sure, hopefully it works. I suck at geometry.

Answer:

It can't be expressed in that form

Step-by-step explanation:

From difference of two squares:

[tex]{ \boxed{(a + b)(a - b) = ( {a}^{2} - {b}^{2} )}}[/tex]

a » 9

b » 2i

[tex](9 + 2i)(9 - 2i) = \{ {(9)}^{2} - {(2i)}^{2} \} \\ \\ = (81 - 4 {i}^{2} )[/tex]

but i² is -1 [ complex numbers ]

[tex] = \{81 - 4( - 1) \} \\ = 81 + 4 \\ = 85[/tex]

Answer:

[tex](9 + 2i)(9 - 2i) \: \\ this \: can \: be \: wrtten \: as \: \\ {9}^{2} - {2i}^{2} = 81 - 4 \times - 1 \\ = 81 + 4 = 85 \\ then \: 85 + 0i \\ thank \: you[/tex]

Answer:

im pretty sure its A

Step-by-step explanation

Answer:

a

Step-by-step explanation:

Answer :

y^2 - 4y + 3

Step-by-step explanation:

You have to distribute.

Answer:5.285

Step-by-step explanation:

2/7 is equal is .285 If you add .285 to your whole number which is 5 it would equal to 5.285

Answer:

3 books on each shelf

5 books on each shelf

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Answer:

The GCF is going to be 9

Step-by-step explanation:

When finding the GCF, you want to do prime factorization of each number.

18's prime factorization is, 2 × 3 × 3, which equals 18

36's prime factorization is 2 × 2 × 3 × 3, which equals 36

45's prime factorization is 5 × 3 × 3, which equals 45

Now all you have to do is find the factors common in each one, which is 2 three's. You then multiply 3 × 3 = 9. That is your answer

Answer:

17.5

plsss mark brainliestt

Step-by-step explanation:

10÷4=2.5

7×2.5=17.5

Answer:

4/7=10/x

or, 4×x=10×7

or, 4x=70

or, x = 70/4

or, x = 17.5

Thus, x is 17.5

(2) x

2x ⁴ means 2 × x ⁴ = 2 × x × x × x × x

(3) 3

-3⁴ means - (3 × 3 × 3 × 3)

(4) -2

(-2)⁵ means (-2) × (-2) × (-2) × (-2) × (-2)

(5) y

10xy ² means 10 × x × y × y

(6) m

5m ²n means 5 × m × m × n

Answer:

Ayden you should have just asked mrs martinez

Step-by-step explanation:

5 * 5^2

5*5=25*5= 125

Answer:

x=0

Step-by-step explanation:

Subtract 1 from both sides

2x+1-1<1-1

Simplify the arithmetic

2x<1-1

Simplify the arithmetic

2x<0

Isolate the X

X=0

Answer:

$54 Dollars

Step-by-step explanation:

just multiply 27 by 2 and you get $54

Answer:

6 cm^2

Step-by-step explanation:

Answer:

16 and 2

Step-by-step explanation:

I'm not sure honestly if this is correct, but I hope this helps.

Answer:

The numbers are 12 and 8

Step-by-step explanation:

let the numbers be x and y :

[tex]x + y = 20 - - - (a) \\ x - y = 4 - - - (b)[/tex]

add (a) and (b):

[tex]2x + 0y = 24 \\ 2x = 24 \\ x = 12[/tex]

find y:

[tex]x + y = 20 \\ 12 + y = 20 \\ y = 20 - 12 \\ y = 8[/tex]

Answer: -169

Step-by-step explanation:

There are two ways to answer this question, and one is a lot easier than the other. The first is to divide f(x) by g(x) and then substitute 8 for x, which could take a very long time and would be a huge pain.

On the other hand, you can substitute 8 into the equation f(x), and get

f(8) = 3- 2(8) = 3-16 = -13

Then substitute 8 into g(x) and get

g(8) = 1 /(8 +5) = 1/(13)

Then you simply divide the two to get -13/(1/13). Here, you can multiply the numerator and the denominator of the larger fraction by 13, so you would end up with -169/1, or, the answer to your problem: -169.

Answer:

Step-by-step explanation:

Hello!

(75* 45)/2 => 1687, 5 cm²

[tex]\text{A}=\frac{1}{2}\cdot\text{a}\cdot\text{h}\\\\\text{a}\longrightarrow\text{base}\\\\\text{h}\longrightarrow\text{height}\\\\-----------\\\\\text{a}=75 \ \text{cm}\\\\\text{h}=45 \ \text{cm}\\\\\text{A}=\frac{1}{2}\cdot75 \ \text{cm}\cdot45 \ \text{cm}=37,5 \ \text{cm}\cdot45 \ \text{cm}=\boxed{1687,5 \ \text{cm}^2}[/tex]

Answer:

Step-by-step explanation:

if you put it in on your phone there is a tab for that

(7z + 5) + (2z - 1) + (6z + 3) + (3z - 9) =

= 7z + 5 + 2z - 1 + 6z + 3 + 3z - 9 =

= 7z + 2z + 6z + 3z + 5 - 1 + 3 - 9 = 18z - 2

Answer:

(3x-4)(x+5)

Step-by-step explanation: First set up a diamond problem. Find what two numbers add to 60 since 3*20 and add to -11. That would be 15 and -4. Then draw a 2x2 box, and put in 3x^2 the -20, 15x and -4x. Then find the factors. Hope that helped! :)

Answer:

(3x+4)(x-5)

Step-by-step explanation:

Lets US population be x

ATQ

[tex]\\ \sf\longmapsto \dfrac{x}{10}=32[/tex]

[tex]\\ \sf\longmapsto x=32(10)[/tex]

[tex]\\ \sf\longmapsto x=320million [/tex]

Canada has a population that is about 1/10 as large as the United States. If Canada's population is about 32 million, about how many people live in the United States? Explain the number of zeros in your the answer.

Given,

Population of Canada = 32 million (1/10 of that of the USA)

=> Let the population of the USA be 'x'.

Now,

→ x/10 + 32 (million)

→ x = 32 × 10

→ x = 320 million.

(The number of zeros in 1 million is 6, so the number of zeros in 320 million will be 7)

320000000 or 320 million.