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Sever21 [200]
3 years ago
11

1. Factorise the expressions.a2a2 + 2ad + 2ac - ab - bd - bc​

Mathematics
1 answer:
Ugo [173]3 years ago
6 0
There's the only answer i've got

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For every 3 dogs Carol has, she keeps 12 treats. Which is the correct rate?
Tems11 [23]

Answer:

4 treats per dog.

Step-by-step explanation:

Find the rate that she keeps for one dog. As it gives you the rate for 3 dogs, simply divide 3:

(3 dogs/12 treats)/(3/3) = (1 dog/4 treats).

Carol keeps 4 treats for every dog she has.

~

3 0
3 years ago
Which equation represents the general form of a circle with a center at (-2,-3) and a diameter of 8 units
balandron [24]
Fo a circle with radius, r and center (h,k)
te equation is
(x-h)²+(y-k)²=r²
d/2=r
8/2=4=r
center is (-2,-3)

(x-(-2))²+(y-(-3))²=4²
(x+2)²+(y+3)²=16

4 0
3 years ago
Read 2 more answers
Which expression is the simplest form of 3(2x + y) + 4(x - 4y) + x2?
g100num [7]

Answer:

x^2 +  10x - 13y.

Step-by-step explanation:

3(2x + y) + 4(x - 4y) + x^2   First apply the Distributive law to the parentheses:

= 6x + 3y + 4x - 16y + x^2  Now add like terms:

= 10x - 13y + x^2.

7 0
3 years ago
Read 2 more answers
What is the answer to -7(z-6)=-70
Slav-nsk [51]
-7(z - 6) = -70

-7z + 42 = -70
        - 42    -42

-7z = -112

-7z/-7 = -112/-7
z = 16

Answer: z = 16
5 0
3 years ago
Read 2 more answers
3u - 3 = 15<br><br>give me a lecture so i can try to do it in the future please​
never [62]

Answer:

u=6

Step-by-step explanation:

One rule in algebra is what you do to one side, you do it to other side. So if you multiply a number in one side, multiply the same number in other side. Here in this question, you are trying to find the value of the variable u. Variable is called so because the value of it varies depending on different question. Here u is going to be a constant number which when multipled by 3 and then subtracted by 3 equals 15.

So first step is we try to get constants on one side. So we add 3 on both sides to get rid of 3 on left.

3u - 3 + 3= 15+3

3u= 18

Now we divide by 3 on both sides to get u by itself.

3u/3 = 18/3

u= 6

7 0
3 years ago
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