MATHEMATICS HIGH SCHOOL

What value completes the square for the expression? x2 - 18x

i got -9

Answers

Answer 1
Answer: I hope this helps you

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The sum of triple a number and 6 is 9

Answers

3x+6=9
Triple a number (3x) + 6
subtract 6 from both sides
3x=3
Divide by 3 on both sides
X=1
We have an equation: 3*?+ 6= 9
⇒ 3*?= 9-6
⇒ 3*?= 3
⇒ ?= 3/3
⇒ ?= 1

The number is 1~

A cube has a volume of 1000 cubic feet. What us the edge length of the cube?

Answers

ok first we both know 10^3 is 1000 so then the answer would be there is also doing the cube root of 1000 which also =10

Simplify. Assume q is greater than or equal to zero. 12q10

Answers

Answer:

12q the power of 10

Step-by-step explanation:

⅘(10x - 15)+7x >15x-9x​

Answers

Answer: x>4/3

Step-by-step explanation:

For the function y = x + 4, what is the output value if 3 is the input value?y = 1
y = 7
y = 12
y = 34

Answers

y = 7 is the output value for the given function y = x+4.

What is a function?

It is an expression, rule, or law that defines a relationship between one independent variable and dependent variable.

Given function is

y = x+4

where y is the output value and x is the input value of the given function.

If x= 3 then y is given by

y = 3+4 = 7

Hence, for the given function y = x+4 the value of y is 7 when x is 3.

To learn more about function, use the link given below:

brainly.com/question/21145944

#SPJ5

Solve for x. 5x2 – 45 = 0

A.
{3}

B.
{3, –3}

C.
{9, –9}

D.
{9}

Answers

5x^2-45=0
factor 5 out
5(x^2-9)=0
diff 2 perfec squares
5(x-3)(x+3)=0
set zero
x-3=0
x=3

x+3=0
x=-3

x=-3 or 3

B
Hi there! 5x²-45=0, add 45 to both sides, 5x²-45+45=0+45=5x²=45. Divide both sides by 5, 5x²/5=45/5, 45/5=9. So, we have x²=9. we have to find the square root of 9. The square root of 9 is 3*3 because 3*3=9. We have two solutions, the first solution is x=3 and the other solution is x=-3. X=3 and x=-3 can be combined and we get {3,-3}. Therefore, your answer is B. {3,-3}
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