Find the value of "k", given that one solution of the equation 2x² kx + 12 = 0 is
is -3/2

Answers

Answer 1

Answer:

Is there a picture to it.

that will me helpful for me

Step-by-step explanation:

Willing to help


Related Questions

Which expression represents the volume, in cubic units, of
the composite figure?
pi(5^2)(13)-1/3pi(5^2)(12) pi(5^2)(13)-1/3pi(5^2)(25)
pi(5^2)(13)+1/3pi(5^2)(12)
pi(5^2)(13+1/3pi(5^2)(25)

Answers

Answer:

C.

[tex]V = \pi * 5^2(13) +\frac{1}{3}\pi * 5^2 (12)[/tex]

Step-by-step explanation:

Given:

The figure is a combination of a cone and a cylinder

Radius (of both), [tex]r = 5[/tex]

Height of Cylinder, [tex]H_1 = 13[/tex]

Height of Cone, [tex]H_2 = 25 - 13 = 12[/tex]

Required:

Volume  of the figure

Let V represents the volume of the figure;

[tex]V_1[/tex] represents the volume of the cylinder

[tex]V_2[/tex] represents the volume of the cone

So, [tex]V = V_1 + V_2[/tex]

Where [tex]V_1 = \pi r^2H_1[/tex] and [tex]V_2 = \frac{1}{3}\pi r^2 H_2[/tex]

So, V becomes

[tex]V = \pi r^2H_1 + \frac{1}{3}\pi r^2 H_2[/tex]

Factorize the above expression

[tex]V = \pi r^2(H_1 + \frac{1}{3}H_2)[/tex]

Substitute [tex]r = 5[/tex]; [tex]H_1 = 13[/tex];[tex]H_2 = 12[/tex]

[tex]V = \pi * 5^2(13 + \frac{1}{3} * 12)[/tex]

[tex]V = \pi * 5^2(13 + \frac{1}{3} * 12)[/tex]

Open Bracket

[tex]V = \pi * 5^2(13) +\pi * 5^2 \frac{1}{3} (12)[/tex]

Reorder

[tex]V = \pi * 5^2(13) +\frac{1}{3}\pi * 5^2 (12)[/tex]

From the list of options given, option c is correct.

Answer:

C

Step-by-step explanation:

78% of the class completed their homework last night. What fraction of the class completed their homework?

Answers

Answer:

[tex]\frac{39}{50}[/tex]

Step-by-step explanation:

=> 78% makes:

=> [tex]\frac{78}{100}[/tex]

In simplest form:

=>[tex]\frac{39}{50}[/tex]

Answer:

[tex]\frac{39}{50}[/tex]

Step-by-step explanation:

78% is .78 as a decimal and it is [tex]\frac{78}{100}[/tex].

[tex]\frac{78}{100}[/tex] can be simplified to [tex]\frac{39}{50}[/tex]

Find the next term in the
sequence.
Simplify completely.
3
3,3
3, 3, [?]

Answers

3 or 9 could be an answer

It takes 160 ribbons to make 4 football mums. What is the constant of proportionality that relates the number of football mums made, y, to the number of ribbons used, x? 40 140 80 14

Answers

Answer:

40

Step-by-step explanation:

If two variable y and x are related to one other

then they can be represented as y = kx.

where k is constant of proportionality

Number of football mums is represented by y

and number of ribbons is  represented by x

Then y = kx

Also, It takes 160 ribbons to make 4 football mums

substituting y with 4 and

substituting x with 160 in y = kx, we have

4 = k*160

=> k = 4/160 = 1/40

Thus, constant of proportionality is 1/40.

But here option given are  40 140 80 14

so ,equation can be represented as

x = ky

substituting y with 4 and

substituting x with 160 in x = ky , we have

160 = k*4

=> k = 160/4 = 40

Thus, for equation x = ky ,  constant of proportionality is 40.

Evaluate the permutation. 6P2 15 30 36

Answers

Answer:

30

Step-by-step explanation:

Using the definition

n[tex]P_{r}[/tex] = [tex]\frac{n!}{(n-r)!}[/tex]

where n ! = n(n - 1)(n - 2)(n - 3)... × 3 × 2 × 1

Thus

6[tex]P_{2}[/tex] = [tex]\frac{6!}{4!}[/tex] = [tex]\frac{6.5.4.3.2.1}{4.3.2.1}[/tex] ← cancel 4.3.2.1 on numerator/ denominator, leaving

      = 6 × 5

      = 30

what is the tangent ratio of E L?

A. 3/4

B. 5/3

C. 5/4

D. 4/3​

Answers

Answer:

A. 3/4

Step-by-step explanation:

[tex] \tan \angle E = \frac{6}{8} = \frac{3}{4} \\ [/tex]

Stephen and Bridget win some money and share it in the ratio 4:1. Stephen gets £27 more
than Bridget. How much did Bridget get?

Answers

Answer:

15 euros

Step-by-step explanation:Add the both ratio together then take the of stephen  divided by the sum of the ratio then collect like terms them subtract the answer from stephen's share.

I hope this helps.

Answer: Bridget will get $9

Step-by-step explanation:

Let the ratio of sharing between Stephen and Bridget be 4x and x

respectively .

According to the question ,

Stephen gets  $27 more than Bridget.

Then ,

 4x - x = 27

→ 3x = 27

→ x = 9

Amount of money that Bridget gets  = $ 9

50% increase followed by a 33 1/3% decrease

Answers

Answer:

A 50% increase followed by a 33/1/3% decrease. = ? (1 + 0.5)*(1 - 0.3333333) = 1.5 * 0.666667 = 1. Result is same as original.

A 50% increase followed by a 33 1/3% decrease is a net decrease of 16 2/3%.

Here is the explanation:

A 50% increase means that the value is multiplied by 1.5.

A 33 1/3% decrease means that the value is multiplied by 0.6666666666666666.

So, the net effect of the two changes is:

(1.5 × 0.6666666666666666) = 1 - (1/6) = 0.8333333333333334

This is a decrease of 16 2/3%.

For example, if you start with a value of 100, then a 50% increase followed by a 33 1/3% decrease will result in a final value of 83.33.

Learn more about net decrease here: brainly.com/question/13244351

#SPJ2

When solving the equation 3x + 9 = 17x - 11, the first step is to?

Answers

Hi there!

The first step would be to combine like terms.

Hope this helps !

Step-by-step explanation:

The first step is to move the like terms to same side of equation

3x + 9 = 17x - 11 ➡ 9 + 11 = 17x - 3x

then we add like terms

20 = 14x simplify if needed

10 = 7x and x = 10/7

Find the exact value of each trigonometric function for the given angle θ.

Answers

Answer:

[rad] 2.41

Step-by-step explanation:

Since it gave you the point and the angle to find, you simply just have to solve for the inverse of cot. Remember cot is the opposite of tan, so cot is cos/sin. In that case, we plug into the calc (in radians):

cot^-1(-√5/2)

And we should get 2.41 as our answer!

Two bottles of water and three small bags of fruit cost a total of £2.55. If a bottle of water costs 15p more than a bag of fruit, what is the cost of a bag of fruit?

Answers

Answer:

45p

Step-by-step explanation:

2w+3f=2.55

w=f+15p

2w=2f+30p

2f+3f+30p=2.55L

5f+30p=255p

5f=255-30

5f=225p

f=225/5=45p

Solve the system of equations 3x+8y=15 2x-8y=10 X= Y=

Answers

y=0
x=5

Example : 3x+8y=15
3(5)+8(0)=15
15+0=15
15=15

Enter the correct answer in the box.
What is the standard form of function f?
f(x) = 4(x + 6)^2+ 5

Substitute numerical values into the equation for a, b, and c.

F(x) = ax^2 + bx + c

Answers

Answer:

f(x) = 4x² + 48x + 149

Step-by-step explanation:same as the one above me.

The numerical values in the equation for a, b, and c will be 4, 48, and 149, respectively.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2.

The quadratic function is given below.

f(x) = 4(x + 6)²+ 5

Convert the equation into a standard form. Then we have

f(x) = 4(x + 6)²+ 5

f(x) = 4(x² + 12x + 36)+ 5

f(x) = 4x² + 48x + 144 + 5

f(x) = 4x² + 48x + 149

The numerical values in the equation for a, b, and c will be 4, 48, and 149, respectively.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ5

What are the solutions to the quadratic equation x2 – 16 = 0?
O x = 2 and x = -2
x = 4 and x = -4
x = 8 and x = -8
x = 16 and x = -16

Answers

Answer: x=8 and x=-8

Step-by-step explanation:

To find the solutions of the quadratic equation, you want to factor it and set it equal to 0.

x²-16=0

(x+8)(x-8)=0

x+8=0

x=-8

x-8=0

x=8

Now that we have factored and set the factors equal to 0, we found that the solutions are x=-8 and x=8.

ASAP.right now will be nice

Answers

Answer:

Its where the figures don't touch

Step-by-step explanation:

Lines a and b are parallel lines cut by transversal f.

Parallel lines a and b are cut by transversal f. At the intersection of lines f and b, the uppercase left angle is angle 4. At the intersection of lines f and a, the uppercase right angle is angle 1.

If , what is ?

20°
70°
110°
130°

Answers

Answer:

110

Step-by-step explanation:

110°

Charlie and Leo were playing with toy cars. Charlie said to Leo that if you give me one car, then i will have twice as many cars as you have. Leo said if charlie gives him a car, they will be equal. How many cars does each boy have?

Answers

Answer:

Charlie has 6 and Leo has 4

Step-by-step explanation:

6-1=5 and 4+1= 5

brainliest plsss

Answer:

In the beginning, Leo had 3 cars and Charlie had 3 cars.

In this problem, the statements seem to never be true if applied in the initial value. But if we take the value from the first statement and take it in the second, Leo and Charlie having 3 cars is true.

Step-by-step explanation:

Charlie said to Leo that if you give me one car, then i will have twice as many cars as you have.

[tex](L_{1} - 1) = 2L_{2} = C_{2}[/tex]

From that statement after Leo gives Charlie a car, we'll have something like:

Charlie's                        Leo's

    2                                    1

    4                                    2

    6                                    3

Also, from that statement we can imply that we're not dealing with a great amount of cars, because the next statement won't be true.

Leo said if Charlie gives him a car, they will be equal.

[tex]L_{1}= C_{1} - 1[/tex]

Another thing is that if the second consideration holds true after the first statement. I will considerate that.

So,

In the beginning, Leo had 3 cars and Charlie had 3 cars.

In this problem, the statements seem to never be true if applied in the initial value.

Please help me, it's urgent. ​

Answers

A & C are the answers

Answer:

A and C

is your answer

Step-by-step explanation:

A. x+4=7

3+4=7

B. x/9=3

27/9=3

C. 5-x=2

5-3=2

D. 8x=32

8*4=32

E. x-10=7

17-10=7

How are nongovernmental producers different from the federal government?
A. They can refuse to pay taxes.
B. Their goal is to make a profit.
C. They can regulate international trade.
D. Their existence is dependent upon competition.​

Answers

It is c they can regular international trade at least that’s what was right for me

Answer:

the differences between a non-profit organization and NGOs are: 1.The NGO is a non-governmental organization. Its funds are raised by the government, but it maintains a non-governmental position, with no need for a government council.

Step-by-step explanation:

Pat starts with two identical square pieces of paper. On the first one, she draws straight lines that divide the paper into a 3-by-3 grid of squares. The total length of the lines she draws is 18cm.
On the second piece of paper, Pat draws straight lines that divide the paper into a 6-by-6 grid of squares.
what is the total length of the lines that Pat draws on the second piece of paper?

Answers

Answer:

  45 cm

Step-by-step explanation:

2 lines will divide the square in thirds. 2 additional lines will divide those thirds into ninths. Pat's 4 lines total 18 cm.

To divide the square into sixths requires 5 lines. To divide it into 36ths requires 5 additional lines. Hence the total number of lines on the second paper is 10/4 = 5/2 times the total on the first paper.

The total length of lines on the second paper is ...

  (5/2)(18 cm) = 45 cm

Answer:

45!!

Step-by-step explanation:

You hungrily remove frozen meat from the fridge. Its temperature is -18 degrees celsius but you can start cooking it only when it reaches 15 degrees celsius. Its temperature is increasing by 3 degrees celsius every minute. How many minutes will you have to wait before you can start cooking? *

Answers

Answer:

start at -18 degrees

To get to 15 it would be 33 degrees increased

1 min  =  11 minutes

3 degrees = 33 degrees

You would have to wait 11 minutes

plz helpp will give brainliest!!!!

Answers

Answer:

Its either 25% or 15% but i would go with 25 first

Will and Decrease

Step-by-step explanation:

Eight businesses were asked how many employees they have. Here is the data: 4, 5, 6, 5, 4, 6, 3, 8. Find the mean / A ocho empresas se les preguntó cuántos empleados tienen. Aquí están los datos: 4, 5, 6, 5, 4, 6, 3, 8. Encuentre la media * A.5 B.5.125 C.4 D.6

Answers

Answer:

B. 5.125

Step-by-step explanation:

When you add the numbers, you get 41. Then, you divide by how many numbers there are and you would get 5.125.

Answer:

B. 5.125

When you begin to add the numbers your total will be 41 but you would need to divide by the total amount of numbers in the data and your answer would be 5.125

When you add the numbers, you get 41. Then, you divide by how many numbers there are and you would get 5.125.

Step-by-step explanation:

PLS HELP EASY QUESTIONS
1.
Jenny has some tiles in a bag. The tiles are of three different colors: purple, pink, and orange. Jenny randomly pulls a tile out of the bag, records the color, and replaces the tile in the bag. She does this 50 times. The results are recorded in the given table:


Color of Tile Purple Pink Orange
Number of times the tile is drawn 4 24 22


What is the experimental probability that Jenny will pull out a pink tile?
22 over 50
22 over 28
24 over 50
4 over 50

2.
Jake has a bag of 50 beads, of which some are red and the remaining are yellow. Jake randomly pulls out a bead from the bag, records the color, and replaces it in the bag. Jake has already recorded 6 red and 9 yellow beads. Based on the result, what is most likely the number of red beads in the bag?

10
20
30
40

Answers

Answer:

24 over 50 and 20 red beads

Step-by-step explanation:

Evaluate f(x) = x 2 + 1 for f(-1). a) 0 b) undefined c) 2

Answers

Answer:

2

Step-by-step explanation:

f(-1)=-1^2 +1 =2

Answer:

C) 2

Step-by-step explanation:

Hope this helps :)

A rectangular swimming pool has a length of 48 feet and a width of 36 feet. A hose needs to extend from the southwest corner of the pool to the northeast corner of the pool. What is the shortest length the hose can be to extend from one corner to the other corner.

Answers

Answer:

60 feet

Step-by-step explanation:

The diagonal of a rectangle =root(l^2+b^2)

Therefore,root(36^2+48^2)

. =root(1296+2404)

. =root(3600)=60

correct me if i am wrong

Answer: 60 feet

Hope this helps

I need help on this.​

Answers

Answer:

186

Step-by-step explanation:

the answer for this question is

6 x {[(14 - 9 ) x 3 ] + [( 17-9) x 2]}

is 106

If P (5, 1), Q (8, 0), R (0, 4), S (0, 5) and O (0, 0) are plotted on the graph paper, then the point(s) on the x-axis are
A. P and R
B. R and S
C. Only Q
D. Q and O

Answers

Answer:

its D Q and O

Step-by-step explanation:


Laura received a $90 gift card for a coffee store. She used it in buying some coffee that cost $8.63 per pound. After buying the coffee, she had $55.48 left on
her card. How many pounds of coffee did she buy?

Answers

Answer:

4 pounds

Step-by-step explanation:

Jackson said that he made a triangle that had side lengths of 6 units, 6 units and 14 units. Is this a possible triangle? Yes or no.

Answers

[tex]\text{The triangle will not be possible}\\\\\text{This is because the two side lengths can't expand to 14 units}\\\\\text{In order for the triangle to work, the sum of the two short side lengths}\\\text{must be greater than the longer side}\\\\\text{However, 6+6 does not equal 14, it equals 12.}\\\\\text{This means that the triangle is NOT possible}[/tex]

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