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lora16 [44]
3 years ago
15

The sum of 18 and a number

Mathematics
2 answers:
Ann [662]3 years ago
7 0
18+x is what that means
Pani-rosa [81]3 years ago
6 0
The sum of 18 and 3 is 21
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(3x2 + 10x + 3) by (x + 3)​
Nata [24]
Explanation: 3 x 2 + 10 x + 3 We can Split the Middle Term of this expression to factorise it. In this technique, if we have to factorise an expression like a x 2 + b x + c , we need to think of 2 numbers such that: N 1 ⋅ N 2 = a ⋅ c = 3 ⋅ 3 = 9 and, N 1 + N 2 = b = 10 After trying out a few numbers we get: N 1 = 9 and N 2 = 1 9 ⋅ 1 = 9 , and 9 + ( 1 ) = 10 3 x 2 + 10 x + 3 = 3 x 2 + 9 x + 1 x + 3 = 3 x ( x + 3 ) + 1 ( x + 3 ) ( 3 x + 1 ) ( x + 3 ) is the factorised form for the expression.

c
, we need to think of 2 numbers such that:
N
1
⋅
N
2
=
a
⋅
c
=
3
⋅
3
=
9

and,
N
1
+
N
2
=
b
=
10
After trying out a few numbers we get:
N
1
=
9
and
N
2
=
1

9
⋅
1
=
9
, and
9
+
(
1
)
=
10
3
x
2
+
10
x
+
3
=
3
x
2
+
9
x
+
1
x
+
3

=
3
x
(
x
+
3
)
+
1
(
x
+
3
)
(
3
x
+
1
)
(
x
+
3
)
is the factorised form for the expression.
6 0
3 years ago
11). Liam, Lidea, Lisa and Larry bought a
denis-greek [22]

Answer:Sorry about the sick day.The answer is simply Larry did the greatest.

Step-by-step explanation:First, subtract 54-14=41. Then, you multiply 41 times .25 since 25%=.25.This will give you 10.25.Finally, you subtract 41.00-10.25 to find out the remaining payment from Larry which is 37.50 dollars.Therefore, Larry paid the most.

7 0
3 years ago
Read 2 more answers
3(х + 3) 3х + 3 please help​
shtirl [24]
I don’t really know but try a calculator
4 0
3 years ago
What’s is 2 1/2 divided 1/3
Marat540 [252]

Answer:

7\frac{1}{2}

Step-by-step explanation:

2\frac{1}{2} * the reciprocal of \frac{1}{3}

To find reciprocal, flip the top and the bottom.

So \frac{1}{3} would be \frac{3}{1}.

Multiply like normal.

6 0
4 years ago
H(x)=x2+2x g(x)=-2x+4 Find(h-g)(x)<br> O x2+3x+1<br> O x2+4x-4<br> O x2-4x-4<br> O -x2-4x+4
maria [59]

Answer:

Step-by-step explanation:

x^2 + 2x + 2x - 4

x^2 + 4x - 4

Option 2 is the answer

8 0
4 years ago
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