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ki77a [65]
3 years ago
14

atex-formula">
Mathematics
2 answers:
seraphim [82]3 years ago
6 0

\huge\text{$x=\boxed{6}$}

We can solve for the variable x by isolating it on one side of the equals sign.

Start by adding 4 to both sides to cancel out the -4 on the left side of the equation.

\begin{aligned}3x-4+4&=14+4\\3x&=18\end{aligned}

Now divide both sides of the equation by 3 since 3x is the same as 3*x and we want to isolate x, keeping in mind that anything multiplied by 1 is itself.

\begin{aligned}3x&=18\\3*x&=18\\3*x\div3&=18\div3\\x*3\div3&=18\div3\\x*1&=6\\x&=\boxed{6}\end{aligned}

Digiron [165]3 years ago
3 0

\text {Hello! Let's Solve this Problem!}

\text {\underline {The First Step is to Add 4}}

\text {3x-4+4=14+4}

\text {3x=18}

\text {\underline {The Final Step is to Divide 3}}

\text {3x/3=18/3}

\text {Your Answer Would Be:}

\Huge\boxed {x=6}

\text {Best of Luck!}

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find the equation of a straight line joining the points (6,9) and (4,7). Please help im bad at mathematic :( and please do a cal
quester [9]

Answer:

y = x+3

Step-by-step explanation:

First step is to find the slope

m = ( y2-y1)/(x2-x1)

   = ( 7-9)/(4 - 6)

   = -2 / -2

  = 1

The we can put is in slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = 1x+b

Putting in one of the points

9 = 1*6+b

Subtracting 6

9-6 = b

3=b

y = 1x+3

y = x+3

5 0
3 years ago
Read 2 more answers
15) A rectangular yard has a length that is 5 feet more than the width. Around the outside of the yard is a path made of bricks
miskamm [114]

Answer:

Step-by-step explanation:

Ok so umm I literally have no idea or I’m too lazy but good luck

3 0
4 years ago
PLZ HELP!!!!!!!
mrs_skeptik [129]

Answer:

  5.  A) two solutions

  6.   one solution

Step-by-step explanation:

5. A graph shows the curve has two x-intercepts, so two solutions. You can also figure this by looking at the discriminant:

  b^2 -4ac = (7)^2 -4(-4)(8) . . . . a positive number

When the discriminant is positive, there are two real solutions.

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6. The equation factors as ...

  0 = 3(x +3)^2

This will have one real solution at x=-3.

8 0
3 years ago
About 7% of the population of a large country is nervous around strangers. If two people are randomly selected, what is the prob
chubhunter [2.5K]

Answer:

Probability both are nervous around strangers = 0.0049

Probability at least one is nervous around strangers = 0.1302

Step-by-step explanation:

Let probability a person selected in the population is nervous around strangers = P

                                        P = 7%

                                        P = \frac{7}{100}

                                        P = 0.07

Let probability a person selected in the population is not nervous around strangers = P'

                                         P' = 1 - P

                                         P' = 1 - 0.07

                                         P' = 0.93

(i) probability of the first person selected is nervous around strangers = P

   probability of the second person selected is nervous around strangers = P

   Probability both are nervous around strangers = (P × P)

                                         = 0.07 × 0.07

                                         = 0.0049

(ii) Probability at least one is nervous around strangers = ( probability the first person is nervous around strangers AND the second person is not nervous around strangers ) OR ( probability the second person is nervous around strangers AND the first person is not nervous around strangers)

This implies,

Probability at least one is nervous around strangers = (P × P') or (P × P')

                                        = (0.07 × 0.93) + (0.07 × 0.93)

                                        = 0.0651 + 0.0651

                                        = 0.1302

5 0
4 years ago
3 students are selected from a class that has 10 boys and 5 girls. what is the probability that 1 boy and 2 girls are selected?
Nookie1986 [14]
Chances of drawing a boy the first time = 12/16. 
<span>Chances of drawing a boy the second time = 11/15. </span>
<span>Chances of drawing a boy the third time = 10/14. </span>

<span>(12/16)(11/15)(10/14) = about 39.3%.</span>
4 0
4 years ago
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