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3 years ago

How many x -intercepts does the parabola whose function is f(x)=3 x 2 +4x+4

Mathematics

2 answers:

Viktor [21]3 years ago

5 0

Answer:

The answer is 0

Step-by-step explanation:

Let's break this down. . .

x-intercepts are x-intercepts that have 0 as their y.

For example: (9,0) , (5,0), (3,0) are x-intercept, while (0,9), (0,5), (0,3) are not x-intercepts.

Graph f(x) = 3x^2 + 4x + 4

There is no x-intercept.

artcher [175]3 years ago

3 0

Answer:

They are none x- intercepts on the parabola. To find the x-intercept, substitute in 0 for y and solve for x.

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3 years ago

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What two lines intersect at a right angle

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Perpendicular hope it helps

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3 years ago

A cell phone tower in a field casts a shadow of 100 ft. At the same time, a 4 ft 6 in post near the tower casts a shadow of 3 ft

Volgvan

This is the concept of linear proportionality;
We are required to find the height of the tower in feet. The height of the tower will be found as follows;
[height of tower]/[length of the shadow of tower]=[height of post]/[length of shadow of the post]
height of the tower =h
height of the shadow=100ft
height of post=4 ft 6in=4 1/2 ft= 9/2 ft
length of the post's shadow=3 ft 4 in 3 1/3 ft=10/3 ft

N/B 1 ft= 12 inches

thus;
h/100=(9/2)/(10/3)
multiplying both sides by 100 we get:
h=(9/2)/(10/3)*100
h=9/2*3/10*100
h=135 ft

the answer is 135 ft

3 0

4 years ago

Which set of ordered pairs could be generated by an exponential function?

olasank [31]

Answer:

The correct option is (1,2), (0, 1), (1, 2), (2, 4).

Step-by-step explanation:

Consider the provided ordered pairs.

The exponential function is in the form of $f(x)=ab^x$

Where, a is the initial amount $a\neq 0$ and b is the rate of change b>0, $b\neq 1$

The graph of each exponential function passes through the point (0, a),

$f(0)=a\cdot b^0 = a$ and $a\neq 0$

Therefore, Option 1 and 2 and 4 are false.

Hence, the correct option is (1,2), (0, 1), (1, 2), (2, 4).

6 0

3 years ago

8.9. A taco stand sells tacos for $3.25 each. The stand’s expenses for the day are $210. Define your variables and write an ineq

MatroZZZ [7]

The inequality for this problem would be 3.25x > 210 with x representing the number of tacos sold per day. The answer to this inequality would be x = 65 (actually 64.61 but you can't sell half a taco). The taco stand needs to sell at least 65 tacos a day to make a profit.

7 0

4 years ago