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4 years ago

-3(x-3)^2+3 find x-intercepts. solve step by step.

1 answer:

8 0

I'll assume this is y=-3(x-3)^2+3

to find the x-intercepts, set y=0 and solve for x:
0=-3(x-3)^2+3
-3=-3(x-3)^2
1=(x-3)^2
+/-1=x-3
+/-1 + 3 = x

x=4, x=2

this makes sense because if you look at the original equation, you see that plugging in these numbers for x, you get 0.

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Plz help asap <br>I will mark brainliest

Anna [14]

Answer:

The first expression to be solved first will be the exponets the 6 with the tiny 2

Step-by-step explanation:

PEMDAS is an acronym for the order of operations: Parenthesis, Exponent, Multiplication/ division, addition/subtraction. You solve the equation by answering it in that order, with the / answers being done simultaneously left to right (there is probably a better way to explain this, and I’m sure other users will clarify).

8 0

3 years ago

Read 2 more answers

Which of the following represents the inequality shown below when solved for x?

kkurt [141]

Answer:

Option C. $x < -\frac{14}{5}y$

Step-by-step explanation:

we have

$-\frac{5x}{8} > \frac{14y}{8}$

Solve for x

That means ---> isolate the variable x

Multiply by 8 both sides to remove the fractions

$-5x>14y$

Multiply by -1 both sides

Remember that

When you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

$5x$

Divide by 5 both sides

$x < -\frac{14}{5}y$

6 0

4 years ago

I need help on 1 and 2

Lelechka [254]

1) the ones digit stays at 2 the tens increase by 1.

6 0

4 years ago

Use an algebraic approach to solve the problem.

qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 = ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0

3 years ago

A factory builds a new warehouse that is approximately 1.28x10^5 square feet. Later, they add on 1.13x10^3 more square feet for

alexdok [17]

Answer:

The correct answer is 1.2913 x $10^{5}$ square feet.

Step-by-step explanation:

A factory builds a new warehouse that is approximately 1.28 x $10^{5}$ square feet = 128,000 square feet.

Later, they add on 1.13 x $10^{3}$ square feet = 1,130 square feet more for offices.

Thus the total size of the new building is given by 128000 + 1130 = 129130 square feet = 1.2913 x $10^{5}$ square feet.

Thus in scientific notation the total area of the factory is 1.2913 x $10^{5}$ square feet.

8 0

3 years ago