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iren [92.7K]
1 year ago
10

Evaluate the function f(x) = 3x^2 + 4x + 19 Find f(-7)

Mathematics
1 answer:
yanalaym [24]1 year ago
3 0

Answer:

Step-by-step explanation:

3

x

2

+

4

x

+

19

−

f

(

x

)

=

0

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In fraction 5_8, what is the tem used to designate the 5?
Ierofanga [76]

Answer:

Numerator = 5

Step-by-step explanation:

A fraction is in the form of \dfrac{x}{y}.

x is numerator of the fraction and y is the denominator.

The given fraction is \dfrac{5}{8}.

Here,

5 is the numerator and 8 is the denominator.

Hence, in the given fraction, 5 is the numerator and 8 denotes the denominator.

5 0
3 years ago
How many triangles are in the figure?
Dmitry_Shevchenko [17]
36 is the answer. Hope this helped!
3 0
3 years ago
Wes used 49 quarts of oil when he changed the oil in 7 cars. Complete and solve the proportion to find how many quarts of oin he
aleksandrvk [35]
140 quarts of oil
49 quarts÷7 cars=7 quarts per car
7 quarts×20 cars=140 quarts
3 0
4 years ago
Write an expression to match 1/8 the sum of 23 and 17
Anestetic [448]
1×23
1×17

1/8 +0/8 =1\8

These are my answers because 1 x any number is its self and same thing for 1/8+0/8 they are the same so you dont add the denominators.
4 0
3 years ago
Can you show us how to find the discriminant of the quadratic x^2 + 2x -2 =0
lorasvet [3.4K]
<em>Step #1: </em>
Make sure the equation is in the form of [ Ax² + Bx + C = 0 ].

Yours is already in that form.
A = 1
B = 2
C = -2

<em>Step #2:</em>
The 'discriminant' for that equation is [ B² - 4 A C ].
That's all there is to it, but it can tell you a lot about the roots of the equation.

-- If the discriminant is zero, then the left  side of the equation is a perfect square,
and both roots are equal. 

-- If the discriminant is greater than zero, the the roots are real and not equal.

-- If the discriminant is less than zero, then the roots are complex numbers.

The discriminant of your equation is  [ B² - 4 A C ] = 2² - 4(1)(-2) = 4 + 8 = 12

Your equation has two real, unequal roots.



4 0
3 years ago
Read 2 more answers
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