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2 years ago

Please help simple math problem.

Mathematics

2 answers:

Korvikt [17]2 years ago

7 0

Answer:

the answer is x=5 for a fact

Step-by-step explanation:

-BARSIC- [3]2 years ago

3 0

Answer:

the answer would be x=5

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Solve for x.

gavmur [86]

$7 \times 9 + x = 84 \\ 63 + x = 84 \\ x = 21$

Answer is C.

Hope this helps. - M

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2 years ago

38 1/4 as a decimal.....

Maurinko [17]

38 1/4 as a decimal would be 38.25 because 1/4 is 0.25 add 38 to that would be 38.25

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2 years ago

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vodomira [7]

Answer:

The option in the top right...

Step-by-step explanation:

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2 years ago

5. Solve using any method.<br> y = -x + 8<br> y=x+4

vlada-n [284]

Answer:

Step-by-step explanation:

$\bold{ELIMINATION\ METHOD}\\\\\left\{\begin{array}{ccc}y=-x+8\\y=x+4&\TEXT{change the signs}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}y=-x+8\\-y=-x-4\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad0=-2x+4\qquad\text{add}\ 2x\ \text{to both sides}\\.\qquad2x=4\qquad\text{divide both sides by 2}\\.\qquad\boxed{x=2}\\\\\text{Put it to the second equation}\\y=2+4\\\boxed{y=6}$

$\bold{SUBSTITUTION\ METHOD}\\\\\left\{\begin{array}{ccc}y=-x+8&(1)\\y=x+4&(2)\end{array}\right\\\\\text{Substitute (1) to (2)}\\\\-x+8=x+4\qquad\text{subtract 8 from both sides}\\-x=x-4\qquad\text{subtract}\ x\ \text{from both sides}\\-x-x=-4\\-2x=-4\qquad\text{divide both sides by (-2)}\\\boxed{x=2}\\\\\text{Put it to the second equation}\\y=2+4\\\boxed{y=6}$

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3 years ago

What is the standard form of the function F? f(x)=4(x+6)^2+5

pashok25 [27]

Answer:

$f(x) = 4x^2+24x+149$

Step-by-step explanation:

Expand the binomial and collect terms.

3 0

2 years ago