(3x + 8)°
(5x – 20)°
(5x + 4y)°
Find the value of each variable.

The solution to the equation given as (x - 7)² = 36 are x = 1 and x = 13

From the question, the equation is given as

(x - 7)² = 36

To start with, we take the square roots of both sides

This gives

x - 7 = ±6

Add 7 to both sides of the equation

So, we have

x = 7 ± 6

Evaluate the like terms

x = 1 and x = 13

Hence, the values of x are x = 1 and x = 13

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The population of the country in 2003 is 302.5 million

From the question, we have the following parameters that can be used in our computation:

Exponential model, A = 302.5e^0.0211t

Where i is the number of years after 2003

In the year 2003, the value of t is 0

i.e. 0 years after 2003

So, we have

A = 302.5e^(0.0211 * 0)

Evaluate the products

A = 302.5 * 1

So, we have the following result

A = 302.5

Hence, the population is 302.5 million

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a) The linear function is:

y = 2 + 0.25x.

b) The amount of snow on the ground after 4 hours will be of 3 inches.

c) The time that he has to complete the hike is of 16 hours, which is enough to finish the hike, as they don't take this long.

The slope-intercept representation of a linear function is presented by the rule as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

In this problem, the values of these coefficients are given as follows:

Hence the equation is:

y = 2 + 0.25x.

After four hours, the amount of snow on the ground will be of:

y = 2 + 0.25(4) = 2 + 1 = 3 inches.

The time until the amount reaches 6 inches is of:

2 + 0.25x = 6

0.25x = 4

x/4 = 4

x = 16 hours.

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Answer:-48

Step-by-step explanation:

a + 85 = 48

first we need to find what a

86-48=a

a=38

now we calculate

a-86?

38 - 86 = -48

Answer:

a - 86 = -124

Step-by-step explanation:

a + 86 = 48

a = 48 - 86

a = -38

Then:

a - 86 = -38 - 86

= -124

The value of n is given by either 4/5 or 16/25.

Given that the positive number is n which is n<1.

Reciprocal of the number is = 1/n

Addition of the number and the reciprocal is 2.05.

So the suitable equation for this,

n + 1/n = 2.05

[tex]n^2+1=\frac{41}{20}n\\20n^2-41n+20=0\\n=\frac{41\pm\sqrt{1681-1600}}{40}=\frac{41\pm9}{40}=\frac{50}{40},\frac{32}{50}=\frac{4}{5},\frac{16}{25}[/tex]

So the number can be either 4/5 or 16/25.

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Answer:

40% decrease

Step-by-step explanation:

[tex]\frac{1090-654}{1090}[/tex] = .4  x 100 to make a percent equals 40%

Answer:There is no decrease from 2,820 kilograms to 2,820 kilograms.

The percent of decrease in the size of the sugar order is 0%.

Step-by-step explanation:

The solution set. for the given inequality : x-5> -10. is (-5, ∞]

An inequality is a relationship that shows a non-equal comparison between two numbers or mathematical expressions.

We need to find the solution set for  x-5> -10.

x - 5 > - 10

x > -10 + 5

x > -5

The solution set = (-5, ∞]

Therefore, the  solution set. for the given inequality : x-5> -10. is (-5, ∞]

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β=-α is the solution for alpha beta square +alpha square beta quadratic equation​

A quadratic equation is a second-order polynomial equation in a single variable x , ax2+bx+c=0. with a ≠ 0 .

alpha beta square +alpha square beta quadratic equation​

αβ²+βα²

αβ(β+α)

αβ=0

and

β+α=0

β=-α

Hence β=-α is the solution for alpha beta square +alpha square beta quadratic equation​

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The measure of angles are

The sum of angles around a point is equal to 360 degrees

The consider the angle a

The equation will be

∠a + 312 = 360 degrees

∠a = 360 - 312

∠a = 48  degree

The angle a is less than 90 degrees then it is an acute angles

Consider the angle b

∠b + 220 = 360

∠b = 360 -220

∠b = 140 degrees

Angle b is greater than 90 degrees and less than 180 degrees then it is an obtuse angle

Consider the angle c

∠c + 36 = 360

∠c = 360 - 36

∠c = 324 degrees

Angle c is grater than 180 degrees and less than 360 degrees then it  is a reflex angle

Hence, the measure of angles are

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The intervals for the concavity of the odd function are given as follows:

The definition of even and odd functions depends on the relation between f(x) and f(-x), as explained as follows:

In this problem, we have that the function is odd, hence the following statement is true:

f(-x) = -f(x) for all values of x.

This means that the concavity intervals are exchanged, hence:

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The measure of the exterior angle to triangle X is D. 97.55°.

It is important to note that the sum of the angles in a triangle is 180°.

In this case, triangle XYZ, m∠Y = 43.85° and m∠Z = 38.6.

The exterior angle to X will be:

= Total angle - (43.85 + 38.6)

= 180 - 82.45

= 97.55°

In conclusion, the correct option is D.

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Answer:

I got the answer d when I took the test

Step-by-step explanation:

I hope this helps...

Answer:

x      y

1      0

2     10

5     40

10   90

Step-by-step explanation:

In a linear function, every time x is increased by 1, y is increased by a set amount. The only two complete rows in the table are when x = 1 and x = 5. x is increased four times in that interval while y has increased by 40(40 - 0). This means that every time x increases by 1, y increases by 10(40/4).

Therefore, when x is 2, y will be 10.

To get to ninety, 10 will needed to be added to 0(when x=1) 9 times. 1 + 9 is 10, so x = 10 when y = 90.

Answer:

Step-by-step explanation:

(1,0)   (5,40)

Using these coordinates we find the line equation y=mx+b:

[tex]\displaystyle\\m=\frac{y_2-y_1}{x_2-x_1} \\\\x_1=1\ \ \ \ \ x_2=5\ \ \ \ \ y_1=0\ \ \ \ y_2=40\\\\m=\frac{40-0}{5-1} \\\\m=\frac{40}{4} \\\\m=10\\\\Thus,\ y=10x+b \ \ \ \ (1)\\[/tex]

We substitute the value of coordinate (1,0) into equation (1):

[tex]0=10(1)+b\\\\0=10+b\\\\-10=b\\\\Thus, \ b=-10\\\\Hence,\\\\ y=10x-10\\\\x=2\\\\y=10(2)-10\\\\y=20-10\\\\y=10\\\\Thus,(2,10)\\\\y=90\\\\90=10x-10\\\\100=10x[/tex]

Divide both parts of the equation by 10:

[tex]10=x\\\\Thus, (10,90)[/tex]

   x   |    y

-----------------

   1    |   0    

------------------

   2   |   10

------------------

   5   |   40

------------------

  10   |  90

The probability that the total duration of the 500 calls is greater than 18 hours, using the normal distribution, is of:

0.618 = 61.8%.

The z-score of a measure X of a variable that has mean symbolized by [tex]\mu[/tex] and standard deviation symbolized by [tex]\sigma[/tex] is obtained by the rule presented as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Hence, for the total duration of the 500 calls, in seconds, the mean and the standard deviation are given as follows:

[tex]\mu = 500 \times 130 = 65000, \sigma = 30\sqrt{500} = 670.82[/tex]

Each hour has 3600 seconds, hence the number of seconds in 18 hours is given as follows:

3600 x 18 = 64800.

The probability that the total time is greater than 18 hours is one subtracted by the p-value of Z when X = 64800, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (64800 - 65000)/670.82

Z = -0.3.

Z = -0.3 has a p-value of 0.382.

1 - 0.382 = 0.618 = 61.8% probability.

The problem says that:

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Answer:

x = 1

y = 7

Step-by-step explanation:

y = -x + 8

-y= -2x - 5 (Switch the signs of y = 2x + 5)

0= - 3x + 3 (Subtract both equations)

3x = 3 (Add 3x on both sides)

x = 1 (Divide by 3 on both sides)

y = -1 + 8 (Plug x as 1 in the equation y = -x + 8)

y = 7 (Simplify)

Leading to the answer

x = 1

y = 7

Answer:

this should help

Step-by-step explanation:

it is step by step on screenshots I have above

The future value of $8904.56 compounded semi annually is $13,468.95 The interest earned is approximately $4,564.39

The future value of $8904.56 compounded continuously is $66,185.90.

The interest earned is approximately $57,281.34.

When an investment is compounded semi annually, it means that both the amount that was invested and the interest that has already been earned increases in value twice in a year.

The formula for calculating future value:

FV = P (1 + r)^nm

Where:

FV = 8904.56 x 1.03^(7 x 2) = $13,468.95

Interest = future value - amount invested

$13,468.95 -  $8904.56 = $4,564.39

When an amount is compounded continusoly, it increases in value infinitely over the investment time horizon.

The formula for calculating future value when there is continuous compounding is : A x e^r x N

Where:

FV = 8904.56 x e^0.06 x 7 = $66,185.90

Interest = future value - amount invested

$66,185.90 - 8904.56 = $57,281.34

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The probability that your would get an odd number twice when the rolling is 1-8 is 12.5%

Probability is the chance of occurrence of an even (E) Over a period of time. That is, it is the extent to which an event is likely to occur, measured by the ratio of the favorable cases to the whole number of cases possible.

How to get the probability of the spinning?

From the analysis, the spinning is done twice from numbers 1-8

this means that in ever row, each number appears double.

The sample size is 8x8=64

1,1     1,2     1,3    1,4     1,5    1,6    1,7    1,8

2,1    2,2    2,3    2,4    2,5   2,6   2,7   2,8  

3,1     3,2    3,3   3,4     3,5   3,6   3,7   3,8

4,1    4,2    4,3   4,4    4,5   4,6    4,7   4,8

5,1      5,2   5,3   5,4     5,5    5,6    5,7  5,8

6,1      6,2    6,3  6,4     6,5    6,6   6,7   6,8

7,1      7,2     7,3   7,4    7,5    7,6   7,7  , 7,8

8,1     8,2     8,3  ,,8,4 ,,, 8,5 ,,8,6  8,7,,, 8,8

The required outcome is 8

These outcomes are

1,1  2,2   3,3   4,4   5,5   6,6  7,7  8,8=8 outcomes

Probability of and event is

P=[tex]\frac{number of required outcome}{number of possible outcome}[/tex]

P(E)=[tex]\frac{8}{64}[/tex]

P(E)=[tex]\frac{1}{8}[/tex]

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Answer: 25%

Step-by-step explanation:

You have 4/8 chances of getting an odd number on the spinner, which equals 1/2, or 50%. Now if you are going to get another odd number, you have an additional 1/2 (half your chances) or 50% of a chance of getting it after you get the first odd number. This means you must mutliply these chances. 1/2x1/2 which is 1/4 = 25%

The fraction of strawberry and chocolate flavored candies that Aurora has in her box is 5/4

From the information illustrated, 30 of the candies are strawberry flavored and 24 are chocolate flavored.

Therefore, to get the fraction, we have to divide them. This will be illustrated as:

= Number of strawberry candies / Number of chocolate candies

= 30 / 24

= 5/4

The fraction is 5/4.

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Complete question

In Aurora’s candy box, 30 of the candies are strawberry flavored and 24 are chocolate flavored. What is the fraction of strawberry and chocolate flavored candies that Aurora has in her box?

This calls for applying rates:

18 minutes = 36 rows

1 minute = 36/18 = 2 rows

25 minutes = 2 x 25 = 50 rows

The answer is 50 rows in 25 minutes. I hope this helps!

8. The value of x is 9.

9. The value of x is 6.

Two triangles are congruent if all the corresponding sides and corresponding angle are equal.

8.

In the given triangle ∠A=(3x-4)°, ∠B=(13x+2)° and ∠C=(5x-7)°

The sum of all three angles of a triangle is 180°,

Implies that,

∠A+∠B+∠C=180°

3x-4+13x+2+5x-7=180

21x-9=180

21x=189

x=9

9.

In the given triangle, ∠A=(7x+1)°, ∠B=(19x-18)° and ∠C=(10x-9)°

The sum of all three angles of a triangle is 180°,

Implies that,

∠A+∠B+∠C=180°

7x+1+19x-18+10x-9=180

36x-26=180

36x=216

x=6

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Answer:

16x+4

Step-by-step explanation:

Perimeter= side+side+side+side or 4(side)

Plug in side length

Perimeter= 4(4x+1)

Perimeter=16x+4

It can't be further simplified

The unit rate which correctly corresponds to.the given rate; 6 eggs in 7 months is; 0.86 eggs per month.

A unit rate as the name implies is one in which case a given quantity is expressed in terms of one unit of the other quantity.

Such units are expressed as; a per b.

On this note, since the given rate is; 6 eggs in 7 months.

It follows that the rate can be expressed as;

6 eggs / 7 months

= 6/7 eggs per month.

= 0.85714 eggs per month.

And ultimately, when rounded to the nearest hundredth; we have; 0.86 eggs per month.

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[tex]\qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}}{x}~\hfill } \\\\ \textit{\underline{x} varies inversely with }\underline{z^5} ~\hspace{5.5em} \stackrel{\textit{constant of variation}}{x=\cfrac{\stackrel{\downarrow }{k}}{z^5}~\hfill } \\\\[-0.35em] ~\dotfill[/tex]

[tex]\stackrel{\textit{"y" varies inversely to }x^2}{y=\cfrac{k}{x^2}}\hspace{5em}\textit{we also know that} \begin{cases} y=5\\ x=3 \end{cases} \\\\\\ 5=\cfrac{k}{(3)^2}\implies 5=\cfrac{k}{9}\implies 45=k\hspace{5em}\boxed{y=\cfrac{45}{x^2}} \\\\\\ when~y=1\frac{4}{5}\textit{ what is "x"?}\implies 1\frac{4}{5}=\cfrac{45}{x^2}\implies \cfrac{9}{5}=\cfrac{45}{x^2} \implies 9x^2=(5)(45) \\\\\\ x^2=\cfrac{(5)(45)}{9}\implies x^2=25\implies x=\sqrt{25}\implies {\Large \begin{array}{llll} x=5 \end{array}}[/tex]

Answer:

slice it in the middle in the top and bottom or do it corner to corner.

Step-by-step explanation:

1. have 2 braincells

2. put them toghether and think.

Because the graph only intercepts the x-axis only once, the equation has only one solution. The correct option is the second one.

Here we want to see, based on a graph, how many solutions does the cubic equation:

x³ + 6x² + 12x +8 = 0

The graph of the function:

g(x) = x³ + 6x² + 12x +8

Can be seen below, the number of real solutions that the equation:

x³ + 6x² + 12x +8 = 0

has, will depend on how many times the graph intercepts the x-axis.

We can see that there is only one intercept, so there is one real solution.

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The answer is tom will give 440 cards to Bala, using arithmetic operation.

What is the arithmetic operation?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.

The total number of cards is 780+240 = 1020.

If in the end Bala will have twice as many cards as Tom then I would divide the 1020 by 3 which equals 340.

So Bala will have 2*340 = 680 cards

Tom will have 340 cards.

Now Bala will need (680-240) = 440 more cards.

Hence Tom will give 440 cards to Bala.

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u raised to the 10th power, then the result doubled gives  2u¹⁰

An algebraic expression is an expression that is made up of variables and constants, along with algebraic operations like addition, subtraction, multiplication, exponent, etc.

Given: raise u to the 10th power, then double the result

Step 1: Raising u to the 10th power implies: u¹⁰

Step 2: Doubling the result means multiplying what you obtained in step 1 by 2, that is, 2 × u¹⁰ = 2u¹⁰

Therefore, raising u to the 10th power and then doubling the result gives 2u¹⁰

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Option a is correct.

The first term, a is 3;

Common ratio, r = +4;

What is Geometric Series?

The total of a geometric sequence's finite or infinite terms is known as a geometric series. The analogous geometric series is a + ar + ar2 +..., arn-1 + for the geometric sequence a, ar, ar2,..., arn-1,... The word "series" is known to mean "sum." The geometric series specifically refers to the total of phrases with a common ratio between every pair of neighboring terms. Geometric series can be of two different types: finite and infinite.

In the given question, we have:

The series: 3 + 12 + 48 +

So, here the first term (a) = 3;

The second term = +12;

and, we know that the common ratio in the geometric series is the ratio of the second term and the first term.

So,

Common ratio, r = [tex]\frac{12}{3}[/tex]

r = 4;

so, The common ratio will be the same everywhere. So, It will be 4 in all the cases.

And, The first term, a is 3;

Hence,

Option a is correct.

The first term, a is 3;

Common ratio, r = +4;

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Answer:

we can't give an answer if there's not explanation of which "t" is