What is f(–3) for the function f(a) = –2a2 – 5a + 4?.

Answers

Answer 1

Answer: The answer is 1. f(a) = –2a^2 – 5a + 4. If a = -3, then to find f(-3) we have to substitute a in the general formula. f(a) = –2a^2 – 5a + 4 = -2 * a^2 – 5 * a + 4. Substitute a with -3. f(-3) = –2 * (-3)^2 – 5 * (-3) + 4 = -2 * 9 - (-15) + 4 = -18 + 15 + 4 = 1

Related Questions

the different of two numbers is 18 twice the smaller number is 56 less than three times the larger what are the numbers
A system of equation is shown y=-2x+by= 3x+bWhat value of b is required so that the system has the solution (0,6)b= Please no link I need help badly!
Which expression is equivalent to 5 x + 10 y minus 15?
I’ll mark brainliest! Pls helpp
1) What is the mathematical relationship between a^n and a^-n ? Explain 2) A positive exponent shows repeated multiplication . What repeated operation does a negative exponent show ? I really need your help ! Thanks

2, 10, 50, 250, ...
Write a recursive formula for

Answers

Answer:

$a_(n)$ = 5 $a_(n-1)$

Step-by-step explanation:

The sequence has a common ratio r between consecutive terms, that is

r = 10 ÷ 2 = 50 ÷ 10 = 250 ÷ 50 = 5

Thus the sequence is geometric with recursive formula

$a_(n)$ = 5 $a_(n-1)$

Slope of (1,-2) and (-3,7)

Answers

Answer:

-4/9

Step-by-step explanation:

Slope formula: y2-y1/x2-x1

7-(-2)/-3-1

9/-4

-4/9

Best of Luck!

Find the product mentally.
(z - 12)(z + 12)

Answers

(a-b)(a+b) = a² - b²

(z-12)(z+12) = z² - 12² = z² - 144

Your final answer is z² - 144.

Which expressions result in a positive number? Choose all answers that are correct.

A.

B.
–5 – (–5.1)

C.
14 • (–3)

D.
3 + (–7)

Answers

Expression B results in a positive number

Cheerios

If c = 3 and d = 5, what is the value of the following expression: (c + d) + 5d - c over the power of 2

Answers

The correct answer is 24. 3+5)+5×5-3×3=24

Subsitute the letter with numbers
(3+5)+5×5-3∧2
Okay so do PEMDAS
Parenthesis
3+5=8
8+5×5-3∧2
Exponent
-3×-3=9
8+5×5+9
Multiply
5×5=25
8+25+9
Addition
25+9= 34
34+8=42
So the answer is 42.
~JZ
Hope it helps

Which equation shows the substitution method being used to solve the system of linear equations? x – y = 7

x = y + 3

A) x = (7 – x) + 3

B) x – (y + 3) = 7

C) (y + 3) – y = 7

D) x – y = y + 3

Answers

I think it is answer C
Hope I helped

Other Questions

What will be the next digit in the sentence 1, 1, 2, 3, 5, 8, 13, 21, 34?Please show me your way of thinking :)

The equation of a line is y = -3x - 2. What are the slope and the y-intercept of the line? slope = -3 and y-intercept = 2 slope = 3 and y-intercept = -2 slope = 3 and y-intercept = 2 slope = -3 and y-intercept = -2

The graph below shows the fine that a college student pays to the library based on the number of minutes a loaner laptop is overdue:A graph is shown. The values on the x axis are 0, 2, 4, 6, 8. The values on the y axis are 0, 0.70, 1.40, 2.10, 2.80. Points are shown on ordered pairs 0, 0 and 2, 0.70 and 4, 1.40 and 6, 2.10. These points are joined by a line. The label on the x axis is Minutes Overdue. The title on the y axis is Fine. Which statement best describes the point (0, 0) on the graph? No fine is paid if the laptop is returned 1 minute past the time it is due. A fine of $0.35 is paid if the laptop is returned at the time it is due. A fine of $0.35 is paid if the laptop is returned 1 minute past the time it is due. No fine is paid if the laptop is returned exactly at the time at which it is due.

Given the function f(x)=0.3(4)xwhat is the value of f−1(6)a. 0.360b. 1.242c. 2.161d. 2.312