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3 years ago

Use mental math to determine the solution to x - 3 = 10 .

2 answers:

8 0

First Step: Leave "x" alone, pass the 3 to the other side X= 10+3 Second Step: Add 10 plus 3 X= 13 So your answer is: x=13

IRISSAK [1]3 years ago

3 0

X=13 that is what I got

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A little confused.<br><br><br> solve.

Westkost [7]

Answer:

It's number three, I'm sure.

$-24\sqrt{35}$

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the value of c in the equation y = 4x^2 -10x + c if the y-coordinate of the vertex is -7

love history [14]

Answer: $c=-\frac{3}{4}$

Step-by-step explanation:

Find the x-coordinate of the vertex with this formula:

$x=\frac{-b}{2a}$

In this case:

$a=4\\b=-10$

Substituting values, we get:

$x=\frac{-(-10)}{2(4)}=\frac{5}{4}$

Now we can substitute the coordinates of the vertex into the equation $y = 4x^2 -10x + c$ and then solve for "c".

Then:

$-7 = 4(\frac{5}{4})^2 -10(\frac{5}{4}) + c\\\\-7+\frac{25}{4}=c\\\\c=-\frac{3}{4}$

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3 years ago

Given the function F (x) = x2 -2x -5 determine the average rate of change of the function over the interval -5 < x <6.

KengaRu [80]

Answer:

Step-by-step explanation:

Here f(x) = x^2 - 2x - 5, which at x - -5 is 25 +10 - 5 = 30 and at x = 6 is 19.

The average value of a function f(x) over an interval [a, b] is

f(b) - f(a)

ave. val. = ---------------

b - a

which in this particular case is

19 - 30

ave. val. = ----------------- = -11/11 = 1

6 - (-5)

The average value of this function f(x) = x^2 - 2x - 5 on [-5, 6] is 1.

4 0

2 years ago

WILL BE MARKED BRAINLEST ANSWER. There are 1,062 souvenir paperweights that need to be packed in boxes. Each box will hold 12 pa

Brrunno [24]

I'd say 88.5 because 12 divided by 1062 is 88.5 therefor thats how many boxes youd need.

4 0

3 years ago

The ratio of students who prefer comedic plays to students who prefer romantic plays in the drama club is 2 to 3. If all student

masha68 [24]

Answer:

Step-by-step explanation:

2 to 3 means that the ratio of romantic students has a numerator of 3. If there is a numerator of 3 the denominator has to be 5 because 2+3 is five if the fraction is 3/5, then the answer is A.

4 0

3 years ago