\(( {12x}^{2} - 10x + 5) + ( {x}^{2} + 8x - 3)\)
Find..​

Answer:

Check Description for answer

Step-by-step explanation

do it urself

Answer:

A) solution 2 is more acidic than solution 1

Step-by-step explanation:

A chemist prepares two acid solutions:

Solution 1: 3 parts sulfuric acid to 7 parts water

Ratio of sulphur to water: 3/7 (3:7)

Solution 2: 4 parts sulfuric acid to 9 parts water

Ratio of sulphur to water: 4/9 (4:9)

___________________________________________________

Part A: (using ratios to determine which solution is more acidic)

First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.

Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63

Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63

Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.

Mathematical Line (Not sure what you would call this lol): 28 > 27

Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)

Equation of solution 1: y = 3/7x

Equation of solution 2: y = 4/9x

Please find attachment for graph.

Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)

Answer:

1.5/8 of the bag

Step-by-step explanation:

1/4 * 2 = 2/8

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

3/8 + 2/8 = 5/8

1 - 5/8 = 3/8

3/8 divided by 1/2 = 1.5/8

Answer:

1.5/8

Step-by-step explanation:

Answer:

-11 and -12 thanks pls mark brailest it would mean a lot

Step-by-step explanation:

Answer:

the first one is A The second on C the third one D and last one B

Step-by-step explanation:

The rule for the relationship between the nonfiction and fiction books as an expression is n = 4f.

We have,

Let's write a rule for the relationship between the number of non-fiction books (n) and the number of fiction books (f) based on the given information.

We are told that the library loans 4 times as many non-fiction books as it does fiction books.

This means that the number of non-fiction books (n) is equal to 4 times the number of fiction books (f).

Mathematically, we can express this relationship as:

n = 4f

Where:

n = Number of non-fiction books

f = Number of fiction books

Thus,

The rule for the relationship between the nonfiction and fiction books as an expression is n = 4f.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ7

the ratio of the scale drawing is

1 inch on the drawing represents 180 feet in real life.

To determine the ratio of the scale drawing, we need to first find the length of the building on the scale drawing. We know that the actual length of the building is 60 feet, and the length of the building on the scale drawing is 4 inches. We can set up a proportion to find the length of the building on the scale drawing:

Actual length / Length on scale drawing = Scale factor

We can plug in the values we know:

60 feet / Length on scale drawing in inches = Scale factor

To solve for the length on the scale drawing in inches, we can cross-multiply:

60 feet * 1 inch / Scale factor = Length on scale drawing in inches

Simplifying:

Length on scale drawing in inches = 60 feet * 12 inches / Scale factor

We know that the length on the scale drawing is 4 inches, so we can plug that into the equation:

4 inches = 60 feet * 12 inches / Scale factor

Solving for the scale factor:

Scale factor = 60 feet * 12 inches / 4 inches

Scale factor = 180

Answer:

\(\underline{ \boxed{z\overline{z} = 34}}\)

Step-by-step explanation:

\(if \: z = -3 + 5i \\then \: \overline{z} = - (3 + 5i) \\ hence \: z\overline{z} = (-3 + 5i)( - 3 - 5i) \\ z\overline{z} = 9 + 15i - 15i - {(5i)}^{2} \\ z\overline{z} = 9 - (25 ){i}^{2} \\ z\overline{z} = 9 - (25)( - 1) \\ z\overline{z} = 9 + 25 \\ \underline{ \boxed{z\overline{z} = 34}}\)

♨Rage♨

Answer:

34

Step-by-step explanation:

Here z = -3 + 5i and the complement of this is

        z-comp = -3 - 5i.

Multiplying these two quantities together, we get

9 -25i²   =    9 + 25  =  34

5x^3 y^5

(i used a site for this one ngl(

Answer:

180 i think please tell me if im wroung

Answer:

it would just be 135?

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

just convert it?

3/10

Step-by-step explanation:

60% is the same as 60/100

90% is the same as 90/100

90-60=30

30/100

30/100 is divided by 10 on each side to simplify it to 3/10

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

Answer:

7/10 = 28/40

3/4 = 30/40

7/10 < 3/4.

Hope that helps. x

Answer:

y=-2x+5. The slope (-2) of the equation is the same, so they are parallel.

Answer:

9

Step-by-step explanation:

Answer:

£320

Step-by-step explanation:

So

The sale price is reduced 40% of the actual price

Actual price - 40% = £192

Actual price is the 100% price of the bike.

100% - 40% = £192

60% = £192

60% of the actual price of the bike is £192 but we need to find 100%.

To do that we need to find the price of 1%. To find this value we divide 60 into 192

\(192 \div 60 = 3.2\)

£ 3.2 is the 1% of the actual price.

To find the actual price (100%), you multiply 3.2 by 100

\(3.2 \times 100 = 320\)

So the actual price is £320

Hope this helps :)

Step-by-step explanation:

£192 = 60% of the original price (reduced by 40%).

1% of the original price = 60%/60 = 192/60 =

= 64/20 = 16/5 = 3.2

100% of the original price = 100×1% = 100×3.2 = £320

the bike cost £320 before the sale.

Step-by-step explanation:

I is right answer of this question

Answer:

The volume of the cone is 108π(pi). if the height is 9

Step-by-step explanation:

V = πr2h / 3     (formula for finding the volume)

V = π62(9) / 3

V = 324π / 3

V = 108π

You can change the value of height if its different for you

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Answer:

Problem one:

\({ \tt{ {x}^{2} = 169 }}\)

but 169 = 13², therefore:

\({ \tt{ {x}^{2} = {13}^{2} }}\)

• apply square roots on all sides:

\({ \tt{ \sqrt{ {x}^{2} } = \sqrt{ {13}^{2} } }} \\ \\ { \boxed{ \boxed{ \: \: x = 13 \: \: }}}\)

Problem two:

\({ \tt{ {x}^{3} = - 125}}\)

but -125 = -5³, therefore:

\({ \tt{ {x}^{3} = - {5}^{3} }}\)

• Apply cube roots to all sides:

\({ \tt{ \sqrt[3]{ {x}^{3} } = \sqrt[3]{ - 5 {}^{3} } }} \\ \\ { \boxed{ \boxed{ \tt{ \: \: x = - 5 \: }}}}\)

Answer:you still on it?

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

h = 4 so,

the expression will be

4 x 2

= 8

Answer: The slope is 3 and the y-intercept is (0, -2)

Step-by-step explanation:

So y=mx+b right? and the m is the slope and b is the y intercept.

Answer:

slope = 3
y intercept = 0, -2

Answer: 2/5 < 5/8

Step-by-step explanation: Find the least common denominator.

In this case the LCD is 40

we multiply the fractions by 40:

16/40 < 25/40

The comparisons shows that 2/5 less than 5/8

Answer: two fifths < five eighths

Step-by-step explanation:

2/5 < 5/8

Mulitiply by 8 because the L.C.M (lowest common multiple) is 40

16/40 < 25/40

Hope that helps! Please make me Brainliest!

Answer:

Step-by-step explanation: The answer would be

10

Answer:

C

Step-by-step explanation:

Write the expression out

factor it

\((\frac{(x+1)(x-1)}{6x})(\frac{3x(x)}{x(x+1)})\)

cancel out all everything that is the same and appears on both the top and the bottom

Cancel out:

(x+1)

(x)

(x)

leaves you with

\(\frac{3(x-1)}{6}\)

3 goes into 6 '2' times so the 3 in the numerator cancels out too. The 6 in the denominator turns into a 2

This leaves you with the final answer of

\(\frac{x-1}{2}\)

Answer:

C

Step-by-step explanation:

after factoring them

they become:

\(\frac{(x+1)(x-1)3x^2}{6x^2(x+1)}\)

after dividing the numerator and denominator by 3x^2(x+1)

it becomes (x-1)/2