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3 years ago

Please help me before it's to late I

Mathematics

1 answer:

gregori [183]3 years ago

5 0

It’s 7.406 , that’s the correct answer

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10 From l he graph F shown below wheal happens to the values as the negative values get closer to zero l . .. 5 35 l I x g 1 in

Marianna [84]

If u add it to a grapghing calcauter

u will get as your points

(-1.2) (6.994)

3 0

4 years ago

10. Working in the laboratory, a student finds the density of a piece of pure aluminum to be 2.850 g/cm3. The accepted value for

Andrews [41]

Answer: 5.6%

Step-by-step explanation:

Actual Value observed=2.850 g/cm3

Expected value=2.699 g/cm3

Error =Actual value - expected value

= 2.850-2.699

Error = 0.151

Error percent = $\frac{Error}{Expected Value} 100%$ %

= $\frac{0.151}{2.699} *100\\0.056*100\\5.6$

The student's percent error is 5.6%

6 0

4 years ago

Read 2 more answers

I only really need the domain and range, intervals, and end behavior. My Precalculus class never covered piecewise functions so

Serjik [45]

(a)

Domain:

we know that domain is all possible values of x for which any function ios defined

Here, curve is defined for all values of x

so, domain is

$(-\infty,\infty)$

Range:

Range is all possible values of y for which x is defined

minimum value of y is -4

maximium value of y is +inf

so, range is

$[-4,\infty)$

(b)

x-intercept:

It is the value of x where f(x)=0

so, the point where curve intersects on x-axis

and we get

$2x^2-4=0$

$x=\sqrt{2}$

and

$x=-5$

(c)

Increasing interval:

where curve is moving upward

we can see that

$(0,\infty)$

Decreasing interval:

where curve is moving downward

we get

$(-\infty,-1)U(-1,0)$

Constant:

constant means horizontal line

there is no horizontal line here

so, it does not exist

(D)

End behavior:

when x-->+inf

y is moving upward

so, y---->+inf

when x-->-inf

y is moving upward

so, y---->+inf

(E)

we can see that curve jupms at x=-1

so, there is discontinuity at x=-1

and this is jump type of discontinuity

(F)

For odd:

f(-x)=-f(x)

For even:

f(-x)=f(x)

we can see that none of them holds true

so, this is neither

3 0

3 years ago

Pls <br> Simplify the following.<br> 81x 3-9x3" <br> 81x3-3x3: <br> asap

Ivahew [28]

Answer:

this is thenanswer of first question

243-3×3

243-9

234

6 0

3 years ago

Phil is riding his bike. He rides 46 miles in 4 hours, 57.5 miles in 5 hours, and 69 miles in 6 hours. Find the constant of prop

FromTheMoon [43]

Answer:

The constant of proportionality k = 11.5.

The equation will be: $\mathbf{y=11.5(x)}$

Step-by-step explanation:

If x represents number of hours than y represents miles

We are given:

x y

4 46

5 57.5

6 69

The constant of proportionality can be found using formula: $k=\frac{y}{x}$

Putting values and finding k

x y k ( $k=\frac{y}{x}$ )

4 46 11.5

5 57.5 11.5

6 69 11.5

So, the constant of proportionality k = 11.5

Now, The equation will be:

$k=\frac{y}{x}\\or \\y=kx\\Put \ k=11.5\\y=11.5(x)$

So, the equation will be: $\mathbf{y=11.5(x)}$

4 0

3 years ago