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Oduvanchick [21]
2 years ago
14

PLS HELP How many solutions does this system of equations have? y= -6x-7 y=-6x-7

Mathematics
1 answer:
Elis [28]2 years ago
5 0

Answer:

They can have infineyely many solutions :)

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cupoosta [38]

Answer:

choice 2)  rotation 90 CW

Step-by-step explanation:

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2 years ago
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An object moves along a coordinate axis so that its position at time t is given by s(t)=t3. Estimate its instantaneous velocity
Mademuasel [1]

If the position at time <em>t</em> is

<em>s(t)</em> = (1 m/s³) <em>t</em> ³

then the average velocity over <em>t</em> = 2 s and <em>t</em> = 2.001 s is

<em>v</em> (ave) = (<em>s</em> (2.001 s) - <em>s</em> (2 s)) / (2.001 s - 2 s)

<em>v</em> (ave) = ((1 m/s³) (2.001 s)³ - (1 m/s³) (2 s)³) / (2.001 s - 2 s)

<em>v</em> (ave) ≈ (8.01201 m - 8 m) / (0.001 s)

<em>v</em> (ave) ≈ 12.006 m/s

6 0
2 years ago
Can somebody help me with all of them my mom is kinda getting annoying..
tatuchka [14]

Answer:

These are the answers for question 3 only.

Step-by-step explanation:

3)

a. 3 <u>></u> -3

b. 12 <u><</u> 24

c. -12 <u>></u> -24

d. 5 <u>></u> -(-5)  - (I'm not sure about this one)

e. 7.2 <u>></u> 7

f. -7.2 <u><</u> -7

g. -1.5 <u>=</u> -3/2

h. -4/5 <u>></u> -5/4

i. -3/5 <u>=</u> -6/10

j. -2/3 <u><</u> 1/3

6 0
2 years ago
Help -------------------------
34kurt

Answer:

(A) -3 ≤ x ≤ 1

Step-by-step explanation:

The given function is presented as follows;

h(x) = x² - 1

From the given function, the coefficient of the quadratic term is positive, and therefore, the function is U shaped and has a minimum value, with the slope on the interval to the left of <em>h</em> having a negative rate of change;

The minimum value of h(x) is found as follows;

At the minimum of h(x), h'(x) = d(h(x)/dx = d(x² - 1)/dx = 2·x = 0

∴ x = 0/2 = 0 at the minimum

Therefore, the function is symmetrical about the point where x = 0

The average rate of change over an interval is given by the change in 'y' and x-values over the end-point in the interval, which is the slope of a straight line drawn between the points

The average rate of change will be negative where the y-value of the left boundary of the interval is higher than the y-value of the right boundary of the interval, such that the line formed by joining the endpoints of the interval slope downwards from left to right

The distance from the x-value of left boundary of the interval that would have a negative slope from x = 0 will be more than the distance of the x-value of the right boundary of the interval

Therefore, the interval over which <em>h</em> has a negative rate of change is -3 ≤ x ≤ 1

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3 years ago
Always sometimes never: one angle in a triangle is more than 90°
Afina-wow [57]

Answer: sometimes

Step-by-step explanation:

3 0
3 years ago
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