. factorise a^2 -b^2c^2​

Answer:

1

Step-by-step explanation:

3x9 is 27, so you have to find the two phrases that make 2 numbers that equal 27. You already have one number(2x9=18). To check what other number you need, subtract 18 from 27(27-18=9). And then 1x9 is 9 so 1 is your answer

There would be 5/2 cup servings

Answer:

The second product is negative.

Step-by-step explanation:

A negative times a positive is a negative.

Answer:

Step-by-step explanation:

4•(-9)•(-3)•(-1)

-36•(-3)•(-1)

108•(-1)

-108

Answer:

9(x+3)

Step-by-step explanation:

they both have a common factor of 9

Answer:

A

Step-by-step explanation:

if you add a 0 to 3.7 it makes it 3.70 so if you can see that .70 is bigger then .45! :)

Answer:

A.3.7

Step-by-step explanation:

this is because you add a zero behind the numbers and which numbers that ae the  highest after the first .2 numbers is your answer.

Answer:

the answer is -25

Step-by-step explanation:

-5 x -5= -25

negative x negative= negative

Answer:

-5²

-25

but (-5)² this means -5×-5=25

Answer:

Kim gets £90

Step-by-step explanation:

See attachment for math work and answer.

Let x = Jake

Let 3x = Kim

x + 3x = 120

4x = 120

x = 120/4

x = 30

Kim = 3x

Kim = 3(30)

Kim = £90

Answer:

Option D, 72

Step-by-step explanation:

Before touching the question, Let me tell you something about simple interest.

Simple Interest: It is something that is calculated for the additional amount paid on a loan amount. The formula for simple Interest is given by, SI = (P × R × T)/100 where, P specifies principal, R specifies rate, and T denotes time.

Now, Let's go for solving the question.

Simple Interest = P × R × T/100

0r, Simple interest = (720 × 5 × 2)/100

0r, Simple Interest = 72 × 2 × 5/10

0r, Simple Interest = 72

Hence, 72 is the required answer.

Answer: (1 min / 60 s) (1 hr / 60 min)

Answer:

Step-by-step explanation:

(70 x 10^-4) x (60 x 10^6) = (70 x ([tex]\frac{1}{10}[/tex] x  [tex]\frac{1}{10}[/tex] x  [tex]\frac{1}{10}[/tex] x  [tex]\frac{1}{10}[/tex])) x ( 60 x 1000000)

= 70 x [tex]\frac{1}{10000}[/tex] x 60000000 = 420000

Answer:

(70x10^-4) x (60 x 10^6) = 420000

so the answer would be

420000

Answer:

n = -3

Step-by-step explanation:

-5n -3(n+2) = 18

-5n - 3n - 6 = 18

-8n - 6 = 18

-8n = 18 + 6

-8n = 24

n = -3

Hope this helped! If not, please let me know <3

Step-by-step explanation:

#IfWrongPleaseReport

#StudyTogetherWithMe

#ILoveMath

Step-by-step explanation:first of all we have to find discount amount by using the formula discount% of M.P then finding S.P using the formula M. P -S. P then finding the profit using the formula profit% of S. P and at last we have to find C. P using the formula S. P - profit.

I hope u will understand .

hawa xa explanation tei pani herea bujxa hola .

Answer:

$725

Step-by-step explanation:

First you subtract $600 from $3500 then divide $2900 by 4 which is $725

Answer: The answer is 148

Step-by-step explanation:

Angle CBA and ABD should add up to 180 degrees. So you just do 180-32=148

The measurement of the ∠ABD in the given figure is 148°.

Hence the correct option is D.

Given that are two lines AE and CD are intersecting at point B, making angle ∠ABC = 32°.

We need to find the measurement of the ∠ABD.

To find the measurement of the ∠ABD, we will use the concept of linear pair angles.

According to the figure, angles ABC and ABD are linear pair angles, that mean they are supplementary, or we can say their sum is 180°.

Therefore, setting up the equation.

∠ABC + ∠ABD = 180°

Plugging the value of angle ABC from the given information,

32° + ∠ABD = 180°

Subtracting 32 from both the sides,

∠ABD = 180° - 32°

∠ABD = 148°

Hence the angle ABD is equal to 148°.

Therefore, the correct option is D.

Learn more about Linear pair click;

https://brainly.com/question/1757859

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Answer:

5/1

Step-by-step explanation:

because the multiplicative invers is the number that makes it equal to zero

Answer:

$55.31

Step-by-step explanation:

Multiply 18.75 by 2.95 and you will get the answer.

If Mr. Johnson is going to buy a 18 3/4 of turkey for Thanksgiving. The turkey cost $2.95 per pound at the grocery store. 11.06 is the closest estimate to the total cost of Mr. Johnson's turkey

percentage, a relative value indicating hundredth parts of any quantity.

Mr. Johnson is going to buy a 18 3/4 of turkey for Thanksgiving.

The turkey cost $2.95 per pound at the grocery store

We need to find the closest estimate to the total cost of Mr. Johnson's turkey (before taxes)

18 3/4 pound=18.75 pound

20% of $2.85=20/100×2.95

=0.2×2.95

=0.59

Now 0.59×18.75

=11.06

Hence 11.06 is the closest estimate to the total cost of Mr. Johnson's turkey (before taxes)

To learn more on Percentage click:

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Answer:

the awnser is 30

Step-by-step explanation:

mario and peach equal the same, so you would have to do 36÷3 and that equals 12, so then you look at mario divided by toad, and you would do 12÷2 to get 6, so toad would be 6, and that make bowser 0. so it would be 12+0+12+6=30

Answer:

0.81859

Step-by-step explanation:

We solve using z score method

The formula for calculating a z-score is is z = (x-μ)/σ,

where

x is the raw score

μ is the population mean

σ is the population standard deviation.

Mean 0.8 pound

Standard deviation 0.25 pound

For x = 0.55 pound

z = 0.55 - 0.8/0.25

= -1

Probability -value from Z-Table:

P(x = 0.55) = 0.15866

For x = 1.3 pounds

Z = 1.3 = 0.8/0.25

= 2

Probability value from Z-Table:

P(x = 1.3) = 0.97725

The probability that a randomly selected zucchini will weigh between 0.55 pound and 1.3 pounds is

P(x = 1.3) - P(x = 0.8)

0.97725 - 0.15866

0.81859.

Answer:

A

Step-by-step explanation:

2 standard deviations away

Answer:

-3, 6 is the answer

Step-by-step explanation:

There quick put it in

Answer:

8

Step-by-step explanation:

The answer is 8 ft long..

Answer:

last option, 32.5

Step-by-step explanation:

32.5 * 9.20 = 299

Answer:

The first option and the answer is actually 32 hours and 30 min but it'll prolly be 33 hours

Step-by-step explanation:

Answer:

85

Step-by-step explanation:

2 / 34 = 5 / Y

2 x Y = 34 x 5

2 x Y = 170

Y = 170 / 2

Y = 85

The answer to this is / 7c -70

7c-70 is the Answer

first you want to do distributive property. since the -10 is on the outside of the parentheses, you multiply it by the numbers that are in the parentheses. After you do this, the equation should look like

50c-40c-70-3c

Then, you want to combine like terms. The 70 does not have a variable so you want to combine the one with exponents which are 50c,-40, and 3c

50-40 is 10. Then you would add the variable: 10c 10c-3c is 7c once all like terms are combined the equation should look like this:

7c-70

I really hope this helped you

Answer:

[tex]\displaystyle a:b=\frac{1}{3}[/tex]

Step-by-step explanation:

Ratios

We are given the following relations:

[tex]a=\sqrt{7}+\sqrt{c}\qquad \qquad[1][/tex]

[tex]b=\sqrt{63}+\sqrt{d}\qquad \qquad[2][/tex]

[tex]\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3][/tex]

From [3]:

[tex]9c=d[/tex]

Replacing into [2]:

[tex]b=\sqrt{63}+\sqrt{9c}[/tex]

We can express 63=9*7:

[tex]b=\sqrt{9*7}+\sqrt{9c}[/tex]

Taking the square root of 9:

[tex]b=3\sqrt{7}+3\sqrt{c}[/tex]

Factoring:

[tex]b=3(\sqrt{7}+\sqrt{c})[/tex]

Find the ration a:b:

[tex]\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}[/tex]

Simplifying:

[tex]\boxed{a:b=\frac{1}{3}}[/tex]

Answer:

$11.25 was the tip

Step-by-step explanation:

I subtracted 75.00 by 15% and got 63.75 (what they paid) and subtracted 75.00 by 63.75, which got me the tip= 11.25 dollars

Answer:

I'm not sure if this is correct, but if I'm not mistaken, it should be 26.4 multiplied by 3/7.

Step-by-step explanation:

The reasoning is actually pretty simple. First, find the distance between points F and B.  (Hint: Use the Pythagorean Theorem) Then, take that distance, and multiply is by 3/7. Okay, 11.314. That means that the next point should be about 11.314 away from point F, and on the line between those points. Good Luck! I think you can figure out the rest.

Answer:

[tex]-a^{2} -a+12[/tex]

Step-by-step explanation:

Use the FOIL method and multiply the equations into each other to get the final answer.