Solve for x in the equation 2 x squared + 3 x minus 7 = x squared + 5 x + 39.

Answers

Answer 1
X1 = -4.72842, X2 = 9.72842
Answer 2

Answer:

its D

Step-by-step explanation:

on edge


Related Questions

What percent of 145 is 82

Answers

Answer:

56.55

Step-by-step explanation:

PLEASE ANSWER !!!!!!!!!!!

12. Write a function rule in slope-intercept form for the statement: the output is one less than half of the opposite of the input.

Answers

Answer:

The function rule is:

[tex]y=-\frac{1}{2} x-1[/tex]

Step-by-step explanation:

We identify the output with the variable "y", the "input with the variable"x". Notice also that the "opposite of the input is "-x" (negative x), and therefore the words "the output is one less than half of the opposite of the input" translate into:

[tex]y=\frac{1}{2} (-x)-1\\y=-\frac{1}{2} x-1[/tex]

Linear function A and linear function B both have the same input values as shown below. Why will the output values for linear function A always be different than the corresponding output values for linear function B? 2 tables. A 2-column table with 5 rows titled Linear Function A. Column 1 is labeled x with entries 1, 3, 5, 7, 9. Column 2 is labeled y with entries 3, 7, 11, 15, 19. A 2-column table titled Linear Function B. Column 1 is labeled x with entries 1, 3, 5, 7, 9. Column 2 is labeled y with entries 4, 8, 12, 16, 20. The initial values of the two functions are different, and the rates of change of the two functions are also different. The initial values of the two functions are different, and the rates of change of the two functions are the same. The initial values of the two functions are the same, and the rates of change of the two functions are different. The initial values of the two functions are the same, and the rates of change of the two functions are also the same.

Answers

Answer:

The correct answer is: B. The initial values of the two functions are different, and the rates of change of the two functions are the same

Step-by-step explanation: Trust me

Answer: : B. The initial values of the two functions are different, and the rates of change of the two functions are the same

Step-by-step explanation: on edgenuidy

Given the formula D=qh, solve for q.

Answers

Answer:

D/ h =q

Step-by-step explanation:

D = qh

Divide each side by h to isolate q

D/ h = dh/h

D/ h =q

Step-by-step explanation: To solve for q in the equation d = qh, all we have to do is get q by itself on the right side of the equation.

Since q is being multiplied by h, to get q by itself,

we simply divide both sides of the equation by h.

On the right, the h's cancel and we are re left with q.

On the left we have [tex]\frac{d}{h}[/tex].

So our answer is [tex]\frac{d}{h} = q[/tex].

please help quickly !!!!

Answers

Answer:

8.4 * x = 23.94

Step-by-step explanation:

The numbers of gallons times the cost per gallon equals the total cost

8.4 * cost = 23.94

Let x be the cost

8.4 * x = 23.94

Answer:

A... 8.4x=23.94

From that equation, we can solve

A prism is filled with 60 cubes with 1/2 unite side length

What is the volume of the prism in cubic unites?

Answers

Good good day to go back to work Tuesday morning babe I’m finna was your birthday day I love y’all and I’ll see y’all soon

Please help me with this question it is in the picture

Answers

Answer:

complementary angles

Step-by-step explanation:

The sum of the angles is 67+23 = 90

When angles sum together to 90, the are called complementary

Answer:

Option A

Step-by-step explanation:

The measures of the two angles have a sum of 90°.

[tex]67+23=90[/tex]

Therefore, they are complementary angles, since complementary angles have a total measure of 90°.

Option A is the best answer.

Brainilest Appreciated.

2(q–8)<–10 solve for r

Answers

Answer:

q < 3

Step-by-step explanation:

2(q–8)<–10

Divide each side by 2

2/2(q–8)<–10/2

q-8 < - 5

Add 8 to each side

q-8+8 < - 5+8

q < 3

Answer:

[tex] = q < 3[/tex]

Step-by-step explanation:

[tex]2(q - 8) < - 10 \\ 2q - 16 < - 10 \\ 2q < - 10 +1 6 \\ 2q < 6\\ \frac{2q}{2} < \frac{6}{2} \\ = q < 3[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

In geometry, the kissing number of a mathematical space is defined as the greatest number of non-overlapping unit spheres that can be arranged in that space such that they each touch a common unit sphere.

Is the explanation true or false?

Sorry bout the cringe btw... it’s my math problem.

I’ll mark brainleist if you anwser.

Answers

Answer:

this explanation is false

if you have 3,500 after 10 years on an investment that pays 3.5% compounded daily, what was the principle amount you started with ?

Answers

Answer: $2,466.45

Step-by-step explanation:

Hi, to answer this question we have to apply the compounded interest formula:

A = P (1 + r/n) nt

Where:  

A = Future value of investment (principal + interest)  

P = Principal Amount  

r =  Nominal Interest Rate (decimal form, 3.5/100= 0.035)

n=   number of compounding periods in each year (365)

Replacing with the values given

3,500= P (1+ 0.035/365)^365(10)

Solving for P

3,500= P (1.00009589)^3650

3,500/  (1.00009589)^3650 =P

P = $2,466.45

7^2 + 1 - 5 x 3 where do the parenthesis go if the value is 135

Answers

Answer:

(7²+(1-5))×3=

Step-by-step explanation:

Let's try this

(7²+(1-5))×3=

(49-4)×3=

45×3=

135

(Worked first try :o!)

Divide 55 in the ratio 3:2

Answers

Answer:

33 and 22

Step-by-step explanation:

total ratio is 5

55÷5 =11 ( ratio 1)

ratio 3 : 11x3 = 33

ratio 2 : 11x2 = 22

hope this helps

A farmer sells 6.5 kilograms of pears and apples at the farmer's market. 3/4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmers market?

Answers

Answer:

1.625 kilograms

Step-by-step explanation:

Since total weight of pears and apples is 6.5 kilograms and 3/4 of this weight is pears, the weight of the pears is

→ 6.5 x 3/4 = 4.875 kilograms

Since the weight of the pears is 4.875, we can subtract it from the total weight to find the weight of the apples

→ 6.5 - 4.875 = 1.625 kilograms

Answer:

1.625 kg

Step-by-step explanation:

Total weight sold by the farmer =6.5 kilograms

If 3/4 of the weight is pears:

Weight proportion of apple[tex]=1-\frac{3}{4}= \frac{1}{4}[/tex]

Therefore:

Weight of Apples sold at the market [tex]= \frac{1}{4} X 6.5 kg\\[/tex]

=1.625 kg

The farmer sold 1.625 kilograms of apple.

Measurements of a circle

Answers

Answer:

253 degree is the answer

Si: P(x+2)=2(x+2)^3 + x^2+4x +4 : Calcular P(3)

Answers

Answer:

Step-by-step explanation:

Please help!

You flip a coin twice.

What is the probability of getting tails and then getting heads?

Write your answer as a percentage.


___%

Answers

Answer: 25%

Step-by-step explanation:

You have a 1/2 chance of landing a heads or tails both times. So, you multiply 1/2 *1/2 = 1/4. 1/4 = 0.25 = 25%.

If m<22 =122 what is m<5

Answers

Answer:

m = -5

Step-by-step explanation:

Step  1  :

Pulling out like terms/ factors

Add  5  to both sides of the equation :  

                     -m = 5

Multiply both sides of the equation by (-1) :  m = -5

Hope this helps.

Can someone please help with this question

Answers

Answer:

Option B.

Step-by-step explanation:

The given equation of trend line is

[tex]y=\dfrac{4}{5}x[/tex]

where, x is time in minutes and y is amount of water in gallons.

It is given that the rate (gallons per minute) continues approximately.

We need to find the amount of water flow from the hose in 45 minutes.

Substitute x=45 in the given equation.

[tex]y=\dfrac{4}{5}(45)[/tex]

[tex]y=4\times 9[/tex]

[tex]y=36[/tex]

It means 36 gallons of water from hose in 45 minutes.

Therefore, the correct option is B.

What is the approximate circumference of the circle? Use 22/7 for pi. Round to the nearest hundredth.

A) 1.33 meters
B)4.09 meters
C) 5.31 meters
D) 8.17 meters

Answers

Answer:

B) 4.09

Step-by-step explanation:

C= 2πr

Please help me now plz I will mark you brainliest

Answers

Answer:

4.41

Step-by-step explanation:

We can use trig to solve for the missing side (specifically cosine).  cos(x)=adjacent side/hypotenuse.  We have the x value (which is the angle shown) which is 25.  We have the adjacent side of that angle which is 4.  We are solving for the hypotenuse (lets call that h).  When we plug in values into the equation cos(x)=adjacent/hypotenuse, we get cos(25)=4/h.  cos 25=0.9063.  So 0.9063=4/h.  Multiply both sides by h and we get 0.9063h=4.  Now divide 0.9063 on both sides to isolate h and we get 4.4135... but since you want hundredths, its 4.41

What are the solutions of the equation: x2 – 1 = 15?
x = ± sqrt 14
x = ± sqrt 15
x = ±4
x = ±8

Answers

Answer:

x = ± 4

Step-by-step explanation:

Given

x² - 1 = 15 ( add 1 to both sides )

x² = 16 ( take the square root of both sides )

x = ± [tex]\sqrt{16}[/tex] = ± 4

helpieeee plsss

A cone has a volume of 96 'pi' cubic feet. if the radius is 6 feet, what is the height of the cone?

A.8
B.32 ​

Answers

Answer:

height of the cone = 8 ft

Step-by-step explanation:

A cone has a volume of 96π ft³. The radius of the cone is 6 ft. The height of the cone can be computed below .

The volume of a cone can be represented as follows

volume of a cone = 1/3πr²h

where

r = radius

h = height

volume of a cone = 1/3πr²h

volume = 96π ft³

r = 6 ft

h = ?

96π = 1/3 × π × 6² × h

96π = 1/3 × π × 36 × h

96π = 12πh

divide both sides by 12π

h = 96π/12π

h = 8 ft

height of the cone = 8 ft

Prime factors of 24x2

Answers

Answer:

Step-by-step explanation:

24 is a composite number.

Prime factorization: 24 = 2 x 2 x 2 x 3, which can be written 24 = 2³ x 3

The exponents in the prime factorization are 3 and 1. Adding one to each and multiplying we get (3 + 1)(1 + 1) = 4 x 2 = 8. Therefore 24 has exactly 8 factors.

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

Factor pairs: 24 = 1 x 24, 2 x 12, 3 x 8, or 4 x 6

A laboratory tested n = 110 chicken eggs and found that the mean amount of cholesterol was LaTeX: \bar{x}x ¯ = 92 milligrams with σ = 8 milligrams. Find the margin of error E corresponding to a 95% confidence interval for the true mean cholesterol content, μ, of all such eggs.

Answers

Answer:

The margin of error corresponding to a 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is of 1.495 miligrams.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1-0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1-\alpha[/tex].

So it is z with a pvalue of [tex]1-0.025 = 0.975[/tex], so [tex]z = 1.96[/tex]

Now, find the margin of error E as such

[tex]E = z*\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

In this question:

[tex]\sigma = 8, n = 110[/tex]. So

[tex]E = 1.96\frac{8}{\sqrt{110}} = 1.495[/tex]

The margin of error corresponding to a 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is of 1.495 miligrams.

The figure shown in the right is made up of a square and a circle. Find the perimeter of the shaded region.

A. 16+2π cm
B. 12+2π cm
C. 12+4π cm
D. 16+4π cm

Answers

Answer:

B. 12 + 2pi cm

Step-by-step explanation:

The shaded region is made up of 3 square sides and one half circle. The three square sides are each 4, which means that those altogether equal 12.

The circle's circumference can be found by using the equation c = (d)pi

The diameter is 4, so the whole circumference is 4pi. However, you only need half of a circle, which is represented by 2pi.

Add them all together, and you get 12 + 2pi cm.

Answer: i think B

Step-by-step explanation:

A carousel factory has 1252 carousel horses. 48 horse’s are placed on each carousel. How many carousel can the factory build?

Answers

Answer: they can build 26 Carousels.

Step-by-step explanation:

what is the answer to the following question.
7/2 times 5 times 7/5

Answers

Answer:

24 1/2

Step-by-step explanation:

First multiply 7/2 by 5.

7/2 x 5 = 35/2

Then, multiply 35/2 by 7/5.

35/2 x 7/5 = 245/10

Simplify 245/10.

245/10 = 49/2

Convert to mixed fraction.

49/2 = 24 1/2

Therefore, the simplest form of 7/2 x 5 x 7/5 is 24 and 1/2.

Answer:

[tex]24.5[/tex]

hope this helps

brainliest appreciated

good luck!! have a nice day!

What is the value of n - 7 when n = 14

Answers

Answer:

7

Step-by-step explanation:

n - 7

Let n = 14

14-7

7

Answer:

7

Step-by-step explanation:

n-7     n=14

14-7 (substitution)

7

the floor of a building consists of 2000 tiles which are rhombus shaped and each of is diagonal is 40 cm and 25 cm in length. find the total cost of polishing the floor, if the cost per m² is $5​.

WHAT IS THE TOTAL COST

ANSWER QUICK

Answers

Answer:

$2500 is the total cost.

Step-by-step explanation:

Area of rhombus = 40(25)/2=1000/2=500

500*5=2500

Therefore, $2500 is the total cost.

I hope this helped and have a good rest of your day!

Together there are 754 students and teachers in the meeting if the ratio of students to teachers is 27:2 how many teachers are there

Answers

Answer:

52 teachers

Step-by-step explanation:

27x+2x=754

29x=754

x=26

2(26)=52

The number of teachers are 52.

What is a word problem?

A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

For the given situation,

Total number of people = 754

The ratio of students to teachers = 27:2

Let x be the number of people

then,

⇒ [tex]27x+2x=274[/tex]

⇒ [tex]29x=274[/tex]

⇒ [tex]x=\frac{274}{29}[/tex]

⇒ [tex]x=26[/tex]

Thus number of students = [tex]27x[/tex]

⇒ [tex]27(26)=702[/tex]

and number of teachers = [tex]2x[/tex]

⇒ [tex]2(26)=52[/tex]

Hence we can conclude that the number of teachers are 52.

Learn more about word problems here

brainly.com/question/20594903

#SPJ2

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