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valentina_108 [34]
2 years ago
12

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 + 5x - 1.

Mathematics
1 answer:
Vilka [71]2 years ago
6 0

Answer:

You are correct. The answer is the blue point marked

Step-by-step explanation:

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Has an = sign<br><br> i'm just trying to pass and get this deffinition
Vikentia [17]

Answer:

the = sign means both sides of the equation have the same value.

5 0
3 years ago
Which plane figure generates a cylinder when it rotates about the dashed line?
deff fn [24]

Answer:

It is a rectangle

6 0
3 years ago
Given the piecewise function shown below, select all of the statments that are true.
timurjin [86]
The <span>given the piecewise function is :
</span>
f(x) = \[ \begin{cases} &#10;      2x & x \ \textless \  1 \\&#10;      5 & x=1 \\&#10;      x^2 & x\ \textgreater \ 1 &#10;   \end{cases}&#10;\]

To find f(5) ⇒ substitute with x = 5 in the function → x²
∴ f(5) = 5² = 25


To find f(2) ⇒ substitute with x = 5 in the function → x²
∴ f(2) = 2² = 4

To find f(-2) ⇒ substitute with x = 5 in the function → 2x
∴ f(-2) = 2 * (-2) = -4

To find f(1) ⇒ substitute with x = 1 in the function → 5
∴ f(1) = 5
================================
So, the statements which are true:<span>
\framebox {B. f(2) = 4} \ \framebox {D. f(1) = 5}</span><span></span>
8 0
3 years ago
Type the correct answer in each box. Use numerals instead of words.
Alex_Xolod [135]

Answer:


Step-by-step explanation:

Given that prices for a pair of shoes lie in the interval

[80,180] dollars.

Delivery fee 20% of price.  

i.e. delivery fee will be in the interval [4, 9]

(1/20th of price)

Total cost= price of shoedelivery cost

Hence f(c) = c+c/20 = 21c/20

The domain of this function would be c lying between 80 to 180

So domain =[80,180]

---------------------------------

Amount to be repaid = 42 dollars

Once he received this amount, the price would be

105+42 =147

But since price range is only [21*80/20, 21*180/20]

=[84, 189]

Since now Albert has 147 dollars, he can afford is

[80,147]




6 0
3 years ago
Read 2 more answers
16 points
Margarita [4]

Answer:

70 seconds

Step-by-step explanation:

It would need to leak 35 ounces to get down to 30 ounces of flour left. So, 35oz at .5oz per second.

35 / .5 = 70

6 0
3 years ago
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