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3 years ago

Find the product of −35∙−1.5

1 answer:

6 0

17.5 bc normally it would be that for the answer but even with negatives it still is bc a negative times a negative equals a positive

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Solve and check for extraneous solutions.<br> <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B3x%2B1%7D%20%3Dx-1" id="TexFormula1

drek231 [11]

$D:3x+1\geq 0\wedge x-1\geq 0\\
D:3x\geq-1 \wedge x\geq1\\
D:x\geq-\frac{1}{3} \wedge x\geq1\\
D:x\geq1\\
\sqrt{3x+1}=x-1\\
3x+1=(x-1)^2\\
3x+1=x^2-2x+1\\
x^2-5x=0\\
x(x-5)=0\\
x=0 \vee x=5
$

The solution is 5.
The extraneous solution is 0.

7 0

3 years ago

Find acceleration of a cheetah running at 0.5 and sect 21 and second three seconds describe the acceleration of the animal.

xenn [34]

Answer:

Initial velocity (u)=o m/s

Final velocity (v)=27m/s

Time taken to attain velocity is(t)=5m/s

As we know v=u+at

Substitute above values in the given equation

27=0+a(5)

27/5=a

a=5.4 m/s^2

Step-by-step explanation:

4 0

2 years ago

Function g(x) has a removable discontinuity at x = c, where g(c) is undefined. Which statement describes the one-sided limits at

Norma-Jean [14]

Answer:

Step-by-step explanation:

7 0

3 years ago

Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidenc

quester [9]

Answer: 18

Step-by-step explanation:

The formula to find the minimum sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where $\sigma$ = population standard deviation.

z*= critical z-value.

E= Margin of error.

Given : $\sigma= 13$

E= ± 8

We know that critical value corresponding to 99% confidence level = z*=2.576 [Using z-table]

Then, the required sample size would be :

$n=(\dfrac{(2.576)\cdot (13)}{8})^2$

$\Rightarrow\ n=(4.186)^2$

$\Rightarrow\ n=17.522596\approx18$ [Round to next integer.]

Hence, the required minimum sample size = 18

4 0

3 years ago

Type the correct answer in the box. x y 3 10 20 In the table, the relation (x, y) is not a function if the missing value of x is

yan [13]

The relation is <em>not a function</em> if any x-value is repeated.

Assuming you have

(x, y) = (3, 10), (__, 20)

if x = 3, the relation is not a function.

3 0

3 years ago

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