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scZoUnD [109]
2 years ago
15

11. Which operation should be performedfirst to solve the inequality below? * 7x−4≤19

Mathematics
2 answers:
Aleksandr [31]2 years ago
5 0

Answer:

First add 4 to each side

Step-by-step explanation:

7x−4≤19

First add 4 to each side

7x−4+4≤19+4

7x≤23

Then divide by 7

7x/7≤23/7

x≤23/7

iren [92.7K]2 years ago
3 0
The answer above is correcttttttttttttttttttt
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Please help me thanks
allsm [11]
Smallest side that is opposite the angle is the smallest angle so this would be D for the answer!
6 0
2 years ago
The function f(x) = x3 – 8x2 + x + 42 has zeros located at 7, –2, 3. Verify the zeros of f(x) and explain how you verified them.
xeze [42]

Answer:

  • zeros are {-2, 3, 7} as verified by graphing
  • end behavior: f(x) tends toward infinity with the same sign as x

Step-by-step explanation:

A graphing calculator makes finding or verifying the zeros of a polynomial function as simple as typing the function into the input box.

<h3>Zeros</h3>

The attachment shows the function zeros to be x ∈ {-2, 3, 7}, as required.

<h3>End behavior</h3>

The leading coefficient of this odd-degree polynomial is positive, so the value of f(x) tends toward infinity of the same sign as x when the magnitude of x tends toward infinity.

  • x → -∞; f(x) → -∞
  • x → ∞; f(x) → ∞

__

<em>Additional comment</em>

The function is entered in the graphing calculator input box in "Horner form," which is also a convenient form for hand-evaluation of the function.

We know the x^2 coefficient is the opposite of the sum of the zeros:

  -(7 +(-2) +3) = -8 . . . . x^2 coefficient

And we know the constant is the opposite of the product of the zeros:

  -(7)(-2)(3) = 42 . . . . . constant

These checks lend further confidence that the zeros are those given.

(The constant is the opposite of the product of zeros only for odd-degree polynomials. For even-degree polynomials. the constant is the product of zeros.)

3 0
2 years ago
A triangle has a base length of 14cm greater than its height . If the area of the triangle is 48cm^2, find the height of the tri
irga5000 [103]
Area of triangle = base x height /2
48 = (a+14)a/2
a^2 +14a = 96
a^2 + 14a - 96 = 0
Solving for a = 5.04
5 0
3 years ago
Each of the five school buses can hold 43 pupils.
MAVERICK [17]
43x5= 215
215 pupils
215-200=15
15 seats
7 0
2 years ago
Read 2 more answers
What is the distance between (-9 -3) and (-4 -1)
AnnyKZ [126]

Answer:

|5.385|

Step-by-step explanation:

\sqrt{((-9)-(-4))^2 + ((-3)-(-1))^2 =

\sqrt{(-5)^2 + (-2)^2 =

\sqrt{25 + 4 =

\sqrt{29 =

|5.385|

7 0
3 years ago
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