All categories

2 years ago

2. Factorise: a - b - a + b2.square

1 answer:

7 0

A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.

You might be interested in

A recipe makes 6 2/3 cups. The serving size is 5/6 cup. How many servings does the recipe make?

Dmitry [639]

Answer is a I just know

6 0

2 years ago

The earth travels 584 million miles in one year it takes to go around the sun. If there are 365 days in one year what speed does

EleoNora [17]

Answer:

1000miles per hour

Step-by-step explanation:

4 0

3 years ago

Kayla spent half of her weekly allowance on clothes. To earn more money her parents let her clean the oven for $4. What is her w

marysya [2.9K]

In this question, the first information that we get is that Kayla spent half of her weekly allowance in clothes. On cleaning the oven Kayla gets $4. Finally Kayla is left with $12.
Let us assume that the weekly allowance of Kayla = x
Amount of allowance saved after buying clothes = x/2
Then we can go for the equation
x/2 + 4 = 12
x + (4 * 2) = 12 * 2
x + 8 = 24
x = 24 -8
= 16
So we can now see that the weekly allowance of Kayla is $16

5 0

2 years ago

The ratio of pineapple juice to sparkling water that Sylvia and her

Zarrin [17]

Answer:

Step-by-step explanation:

Pineapple:Sparkling water

3:2

A: It's proportional as for every 3 pineapple juice require 2 water no matter how big or small, the ratio stays the same.

B: 3 times as much punch, basically multiply by 3

3(3):2(3)

9:6 pineapple:water

2 (water) = 4 quarts 1=2 quarts

9(2)=18

B: 18 quarts

7 0

1 year ago

Read 2 more answers

Figure ABCD is graphed on a coordinate plane.

Phoenix [80]

1. BC is 1+3=4 (units)

2. AD is 3+5= 8 (units)

3. Draw the altitude CH from point C, as shown in the figure.

4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.

5. $CD^2=HD^2+CH^2$

$CD^2=2^2+4^2=4+16=20$

$CD= \sqrt{20}= \sqrt{4*5}= \sqrt{4} * \sqrt{5}=2 \sqrt{5}= 4.47$

6. AB=CD=4.47 because the trapezoid is isosceles.

7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)

3 0

3 years ago

Read 2 more answers

2. Factorise: a - b - a + b2.square ​

2. Factorise: a - b - a + b2.square