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3 years ago

14

What is the answer to this!?

2 answers:

zalisa [80]3 years ago

5 0

It's x = 3/12 or 0.25

stiks02 [169]3 years ago

4 0

First subtract 13x from both sides to get 12x+7=10. Then subtract 7 from both sides to get 12x=3. so you simplify and get x=4

You might be interested in

A) Show that the equation 20-x^3-7x^2=0 can be rearranged to give x=20/x^2 - 7

AVprozaik [17]

Answer:

Step-by-step explanation:

$20-x^3-7x^2=0$

a)

Add $x^3$ to both sides of the equation: $20-7x^2=x^3$
Divide both sides by $x^2$ : $\frac{20}{x^2} -\frac{7x^2}{x^2} =\frac{x^3}{x^2}$ ⇒ $\frac{20}{x^2} -7 =x$

b)

$x_1=\frac{20}{(x_0)^2} -7$

⇒ $x_1=\frac{20}{(-9)^2} -7$

⇒ $x_1=-\frac{547}{81}$

$x_2=\frac{20}{(x_1)^2} -7$

⇒ $x_2=\frac{20}{(-\frac{547}{81})^2} -7$

⇒ $x_2=-6.561443673...$

$x_3=\frac{20}{(x_2)^2} -7$

⇒ $x_3=\frac{20}{(-6.561443673...)^2} -7$

⇒ $x_3=-6.535451368...$

c) approximation to the location of one of the roots of the equation. Each iteration gives a slightly more accurate value of a root $x$ .

4 0

3 years ago

The smallest 4 digit number which is divisible by 3?

Usimov [2.4K]

The answer to the question is 1002

4 0

3 years ago

Last month, Amelia and Natalie sold candy to raise money for their debate team. Natalie sold 1/5 as much candy as Amelia did. If

yulyashka [42]

I got 1/10 but i’m not sure if it’s correct

7 0

3 years ago

Option A: $4 for 16 ounces of turkey Option B: y = 0.22x, where y is the cost and x is the number of ounces of turkey

hoa [83]

There is no defined question so I'm just going to try my best.
If you are looking for which is a better deal between $4 for 16 and y=0.22x then the answer would be y=0.22x
If you place 16 ounces for "x" in the expression y=0.22x then the cost of the turkey or "y" would be $3.52

5 0

3 years ago

The Wanting Recognition (WR) Scale provides a quantitative measure of a person's level of need for approval and sensitivity to s

levacccp [35]

Answer:

<em> 99% of the confidence level of the mean WR score for all convicted drug dealers </em>

<em>(37.4544, 40.5456)</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the sample size 'n' = 100

Given that the mean of the sample(x⁻) = 39

Given a standard deviation of the sample (σ) = 6

Level of significance = 0.01 or 99%

<u><em>Step(ii):-</em></u>

<em> 99% of the confidence level of the mean WR score for all convicted drug dealers </em>

<em></em> $(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } ,x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} })$ <em></em>

<em></em> $(39 -2.576 \frac{6}{\sqrt{100} } ,39 + 2.576 \frac{6}{\sqrt{100} })$ <em></em>

<em>(39 - 1.5456 , 39+1.5456)</em>

<em>(37.4544, 40.5456)</em>

<u><em>Final answer:-</em></u>

<em> 99% of the confidence level of the mean WR score for all convicted drug dealers </em>

<em>(37.4544, 40.5456)</em>

<em></em>

8 0

3 years ago