FIND THE VALUE OF X MATH

Answer:

the answer is B, aka 10

Step-by-step explanation:

my calculator

Answer: tbh i think its 10

Step-by-step explanation:

Step-by-step explanation:

[tex] {x}^{2} - 5x - 2 = 0 \\ a = 1 \: and \: b = - 5 \: and \: c = - 2 \\ x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} \\ x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2} - (4 \times 1 \times - 2)} }{(2 \times 1)} \\ x = \frac{5± \sqrt{33} }{2} \\ either : x = \frac{5 + \sqrt{33} }{2} \: or \: \frac{5 - \sqrt{33} }{2} \\ x = 5.4 \: or \: - 0.4[/tex]

The exact solutions of the equation x² - 5x - 2 = 0 are:

x = (5 + √(33)) / 2

x = (5 - √(33)) / 2

Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.

We also find the solution in a system of equations using the substitution or elimination method.

Example:

2x + 4 = 8

The solution is x = 2.

We have,

The quadratic formula is:

x = (-b ± √(b² - 4ac)) / 2a

For the equation x² - 5x - 2 = 0, we have:

a = 1, b = -5, c = -2

Substituting these values into the quadratic formula, we get:

x = (-(-5) ± √((-5)² - 4(1)(-2))) / 2(1)

Simplifying the expression inside the square root:

x = (5 ± √(33)) / 2

Therefore,

The exact solutions of the equation x² - 5x - 2 = 0 are:

x = (5 + √(33)) / 2

x = (5 - √(33)) / 2

Learn more about solutions of equations here:

https://brainly.com/question/545403

#SPJ7

Answer:

x= 34

Step-by-step explanation:

(4x + 1 )° + 43° = 180° (due to linear pair)

4x+1+43 = 180

4x + 44 = 180

4x = 180 - 44

4x = 136

x = 136 ÷ 4

therefore, x = 34

Answer:

0.0018 = 0.18% probability of two out of tree people having a reaction.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they have a reaction, or they do not. The probability of a person having a reaction is independent of any other person. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The probability of someone having a reaction to a medication is 0.025.

This means that [tex]p = 0.025[/tex]

What is the probability of two out of tree people having a reaction?

This is [tex]P(X = 2)[/tex] when [tex]n = 3[/tex]. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 2) = C_{3,2}.(0.025)^{2}.(0.975)^{1} = 0.0018[/tex]

0.0018 = 0.18% probability of two out of tree people having a reaction.

Answer:

Simple interest is the cost of using or borrowing money without compound interest or interest on interest. Simple interest works in your favor when you're a borrower because it keeps the overall amount that you pay lower than it would be with compound interest

Step-by-step explanation:

Answer:

Simple Interest is considered "Simple" due to it's straight-forward method; where you add your annual interest rate (%) to your initial principal value, instead of compound which you add your annual interest rate (%) onto your new principal value.

Simple interest is usually used to calculate their first year interest ($).

Answer:

-3,-9

Hope this helps

Answer:

(-3,-9)

Step-by-step explanation:

X goes first then Y, since they are both negative they go backwards on the graph

Answer:

27.

Step-by-step explanation:

75% = 75/100 = 3/4.

Number correct = 3 *36/4

= 3 * 9

= 27.

Answer:

$[tex]$78760.00[/tex]

Step-by-step explanation:

You want to calculate the interest on $40000 at 5.7% interest per year after 17 years.

The formula we'll use for this is the simple interest formula, or:

[tex]I=P*r*t[/tex]

Where:

To find the simple interest we multiply [tex]40000*0.057*17[/tex] to get

The interest rate is  $38,760

Usually now, the interest is added onto the principal to figure some new amount after 17 years.

or 40000.00 + 38760.00 = 78760.00

=$78,760

Answer:

B

Step-by-step explanation:

I'm pretty sure it's B because c=pie x 10 cm = 31.42 cm so rounded it would be 32 cm

Answer:look at attachments

Step-by-step explanation:

Got 100% on Plato

Answer:

A sample of 1077 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is of:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

42% of freshmen do not visit their counselors regularly.

This means that [tex]\pi = 0.42[/tex]

98% confidence level

So [tex]\alpha = 0.02[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.02}{2} = 0.99[/tex], so [tex]Z = 2.327[/tex].

How large of a sample size is required?

A sample size of n is required, and n is found when M = 0.035. So

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.035 = 2.327\sqrt{\frac{0.42*0.58}{n}}[/tex]

[tex]0.035\sqrt{n} = 2.327\sqrt{0.42*0.58}[/tex]

[tex]\sqrt{n} = \frac{2.327\sqrt{0.42*0.58}}{0.035}[/tex]

[tex](\sqrt{n})^2 = (\frac{2.327\sqrt{0.42*0.58}}{0.035})^2[/tex]

[tex]n = 1076.8[/tex]

Rounding up:

A sample of 1077 is required.

Answer:

4/8

Step-by-step explanation:

There are an infinite number of fractions equal to 1/2, but the number line in the question has 8 spaces, and shows 1 divided into 8 pieces. Therefore, the answer to this question is likely 4/8.

(may I ask why exactly this is put as a college level problem?)

Answer:

It should still be the same point.

Step-by-step explanation:

It should still be the same point, since the line did not increase in length, but the numbers of units has, and that does not affect the position of the half of the line.

Answer:

1

Step-by-step explanation:

List out factors of 13

13: 1,13

List out factors of 5

5: 1,5

GCF = 1

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

The GCF is 1.

Step-by-step explanation:

Answer: 5:2:10

Income from fete = £250

13 x 5 + 35 = 100

25 x 20 = 500

250:100:500

Then simplify ratio -

25:10:50

5:2:10

Answer:

x^8

Step-by-step explanation:

x^3 x x^5

=x3*x5

=(x*x*x) * (x*x*x*x*x)

=x*x*x*x*x*x*x*x

=x8

1.) Crown pls ;)

A.) The domain is (-∞,∞) or (-infinity, infinity)

B.) The range is (0,∞) or (0, infinity)

C.) The y-intercept is (0,6)

D.) x-axis

E.) Base

2.)

Answer:

um.......but where is Math translation ?

Answer:

700

Step-by-step explanation:

guess be like

Answer:

A

Step-by-step explanation:

I think it is A because that measures the height of the triangle

Answer:

Option A shows the height of the triangle

Hope this helps!

Answer:

mathmiticians: impossible

Step-by-step explanation:

some random kid: the answer is approxamatly 47.7

The equation of f(x) is f(x)= −43​x−3, the correct option is C.

Function is a type of relation, or rule, that maps one input to specific single output.

In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable). In mathematics and the physical sciences, functions are indispensable for formulating physical relationships.

Linear function is a function whose graph is a straight line

We are given that;

f(x) = -3/X-1

Now,

To find the equation of f(x), we need to identify the slope and the y-intercept of the line. The slope is the ratio of the vertical change to the horizontal change between any two points on the line. The y-intercept is the value of f(x) when x = 0.

Looking at the graph, we can see that f(x) passes through the points (-8, 3) and (0, -3). The slope can be calculated as:

slope=run rise​= 0−(−8) f(0)−f(−8)​=0+8−3−3​=8−6​=−43​

The y-intercept can be found by plugging in x = 0 into the equation f(x) = slope  x + y-intercept and solving for y-intercept:

f(0)=−43​x0 + y-intercept

−3=y-intercept

Therefore, by the given function the answer will be f(x)=−43​x−3.

Learn more about function here:

https://brainly.com/question/2253924

#SPJ7

Answer:

5 minutes

Step-by-step explanation:

Volume of cylinder = πr²h

Radius, r = diameter / 2 = 1.8 /2 = 0.9

Volume of cylinder = 3.14 * 0.9² * 3.5

Volume = 8.9019 feet³

Drain rate = 1.7 ft per minute

Volume / drain rate

8.9019 / 1.7

= 5.2364117

= 5 minutes (nearest minute)

Answer:

symmetric

Step-by-step explanation:

i just did this unit

Answer:

Step 2

Step-by-step explanation:

from Step 1      4/3 - 1/3 = 3/3  = 1   =  q   =  q + 1/3 - 1/3

It is not periodic. A periodic dataset is a dataset that repeats the same pattern over time.

Answer:

For the First image the second one and for the Second image the first one

Step-by-step explanation:

Answer:

1:False

2:True

3:True

4:True

Answer:

100% of the work was done by him

Answer:

D) x = 2

hope it helps

please mark brainliest