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3 years ago

Cuales son las soluciones (o raices) de la ecuacion x^2 + 6x - 16 = 0?

Mathematics

1 answer:

Andreas93 [3]3 years ago

3 0

Answer:

x = 2,-8

Step-by-step explanation:

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Which statement correctly explains how Mari should find a solution to the following system of linear equations using elimination

motikmotik

The answer you are seeking is A

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3 years ago

Read 2 more answers

A) what is average rate of change of f(x) over the interval from x=5 to x=9? (table shows values of f(x). graph shows function o

SVETLANKA909090 [29]

Answer:

See below for answers and explanations

Step-by-step explanation:

Part A

The average rate of change of a function over the interval $[a,b]$ is equal to $\frac{f(b)-f(a)}{b-a}$ , hence:

$\frac{f(b)-f(a)}{b-a}\\\\\frac{f(9)-f(5)}{9-5}\\\\\frac{14-(-4)}{9-5}\\ \\\frac{14+4}{4}\\ \\\frac{18}{4}\\ \\\frac{9}{2}$

Therefore, the average rate of change of $f(x)$ over the interval $[5,9]$ is $\frac{9}{2}$ .

Part B

Do the same thing as in Part A:

$\frac{f(b)-f(a)}{b-a}\\ \\\frac{f(1)-f(0.25)}{1-0.25}\\ \\\frac{2-5}{0.75}\\ \\\frac{-3}{0.75}\\ \\-4$

Therefore, the average rate of change of $g(x)$ over the interval $[0.25,1]$ is $-4$ .

Part C

To interpret our answer from Part B in terms of the real world it represents, we say that between 0.25 seconds and 1 second, the ball falls at a rate of 4 feet per second (since our average rate of change is negative).

5 0

2 years ago

Mike deposited $6500 into two saving accounts bearing simple interest. One of the accounts has an interest rate of 3% while the

ololo11 [35]

0.03x+0.06 (6500-x)=225
Solve for x
0.03x+390-0.06x=225
0.03x-0.06x=225-390
-0.03x=-165
X=165÷0.03
X=5500 invested at 3%

6500-5500=1000 invested at 6%

7 0

3 years ago

What is the value of z in the table?

Genrish500 [490]

The value is 30.9 liters

6 0

2 years ago

For every white car there is 3 black cars,what is the percentage of white cars on the road?

N76 [4]

Answer:

25%

Step-by-step explanation:

1 white car + 3 black cars

4 cars in total

1 out of 4

1/4 = 0.25

25%

4 0

3 years ago