PLS HELP ASAAPPPP!! will mark brainliest if i can !!

PLS HELP ASAAPPPP!! Will Mark Brainliest If I Can !!

Answers

Answer 1

Answer:

2nd option

Step-by-step explanation:

The discriminant b² - 4ac tells us about the nature of the roots

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then the roots are not real

Here b² - 4ac = 15 > 0

Then there are 2 real and distinct roots

x = 2 and x = - 3 are possible solutions to the equation

Answer 2

Answer:

option b) x = 2 and x = -3

Step-by-step explanation:

If discriminant is greater than zero, then the quadratic equation will have two solutions.

If discriminant is equal to zero, then the quadratic equation will have only one solution.

If discriminant is less than zero no solution

Here the discriminant is 15 , which is greater than zero.

Therefore we will have to solutions.

There is only one option with two solutions for x.

So option b is the answer.


Related Questions

The list shows the number of points Emma scored in eight basketball games.
5, 11, 9, 9, 4, 5, 6, 7
Find the mean.

Answers

Answer:

Mean = 7

Step-by-step explanation:

Given the following data;

Number of games = 8

Scores = 5, 11, 9, 9, 4, 5, 6, 7

We would sum all the scores together to get a total score.

Total scores = 5 + 11 + 9 + 9 + 4 + 5 + 6 + 7 = 56

Now, to find the mean;

[tex] Mean = \frac {total \; scores}{number \; of \; games} [/tex]

Mean = 56/8

Mean = 7

Answer:

7 is the mean score.

Step-by-step explanation:

Now we have to,

→ find the required mean score.

The given scores are,

→ 5, 11, 9, 9, 4, 5, 6, 7

→ Numbers = 8

Then the mean score will be,

→ (5 + 11 + 9 + 9 + 4 + 5 + 6 + 7)/8

→ 56/8 = 7

Hence, the mean score is 7.

Which equation is a function of x?

Answers

Answer:

X=5

x=y2+9

x2=y

x2=y2+16

Step-by-step explanation:

If my answer is incorrect, pls correct me!

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

Congruent angle pairs : find value of x and the value of y

Answers

the answer is C x=50 y=10

Which formula gives the coordinates of the midpoint of the segment connecting points (a, b) and (c, d)?

attached below is the options

this is worth 100 points

Answers

Step-by-step explanation:

the correct answer is

a. { ½(c-a), ½(d-b) }

________________

General formula

((x_1+x_2)/2,(y1+y2)/2)

So

Here

for (a,b) and (c,d)

Midpoint

((a+c)/2,(b+d)/2)

Option A


through: (4,4), slope
9/4

Answers

Answer:

y - 4 = (9/4)(x - 4)

Step-by-step explanation:

Here we're given the slope (9/4) of a line and one point (4, 4) on the line.  The easiest form of the equation of a straight line to use here is the point-slope form:

y - k = m(x - h).

Here h = 4 and k = 4; the slope is m = 9/4.

Thus, the desired equation is

y - 4 = (9/4)(x - 4)

20% of 2kg ( in g).
Please help

Answers

Answer:

[tex]{ \tt{ = 20\% \times 2}} \\ = 0.4 \: kg \\ { \tt{ = 400 \: grams}}[/tex]

Answer:

400 g

Step-by-step explanation:

0.20 x 2 kg = 0.4 kg

0.4 kg x (1000g / 1kg) = 400 g

If a +b+c=9 and a square +b square +square =1 then ab+bc+ca

Answers

Answer:

ab + bc + ca = 40

Step-by-step explanation:

Using the expansion identity

(a + b + c)² = a² + b² + c² + 2(ab + bc + ca) , that is

9² = 1 + 2(ab + bc + ca)

81 = 1 + 2(ab + bc + ca) ← subtract 1 from both sides

80 = 2(ab + bc + ca) ← divide both sides by 2

40 = ab + bc + ca

Which value of y makes the equation 55/y = 5 true?

Answers

Answer:

11

Step-by-step explanation:

55/11=5

The cuboid and the triangular prism have the same volume. Find the value of x.

Answers

Answer:

x = 25

Step-by-step explanation:

The volume (V) of the triangular prism is calculated as

V = Al ( A is the area of the triangular face and l is its length )

A = [tex]\frac{1}{2}[/tex] bh = 0.5 × 5 × 8 = 20 cm² , then

V = 20 × 20 = 400 cm³

The volume of the cuboid is calculated as

V = lbh = 3.2 × 5 × x = 16x

Given V = 400 cm³ , then

16x = 400 ( divide both sides by 16 )

x = 25

please I need this question fast please​

Answers

We have a linear function y=kx+b and we know that                                                       [tex]\displaystyle\bf \left \{ {{5*1+c=2} \atop {5p+c=-2}} \right.=>\left \{ {{c=-3} \atop {5p+c=-2}} \right. => 5p-3=-2 => p=\frac{1}{5}[/tex]                                       [tex]\displaystyle\bf Answer: \boxed{C) \quad p=\frac{1}{5} }[/tex]                            

What is the rate of change of the function?

Answers

Answer:

3

Step-by-step explanation:

the rate of change of the function, or the slope is 3 because to get to one point from the other point in the line, you would have to go up 3 and over 1 (3/1) or just 3.

Hope this helps

What is the volume of the following rectangular prism? 1 3/4 1/2 i need a direct answer

Answers

Answer:

V = 0.375 units³

Step-by-step explanation:

The volume of a rectangular prism is V = lwh.

Where l is the length, w is the width, and h is the height.

Given 1 unit(s) for the length, ¾ unit(s) for the width, and ½ unit(s) for the height.

V = lwh

V = (1)(¾)(½) units

V = (⅜) units

V = 0.375 units

Answer:

7/8

Step-by-step explanation:

Is -2 a solution to 4x^(3)-x^(2)+16x-4

Answers

Answer:

Not a solution

Step-by-step explanation:

In order for [tex]x=-2[/tex] to be a solution, the result after substituting must be 0:

[tex]4(-2)^3-(-2)^2+16(-2)-4\stackrel{?}{=}0[/tex]

[tex]4(-8)-4-32-4\stackrel{?}{=}0[/tex]

[tex]-32-40\stackrel{?}{=}0[/tex]

[tex]-72\neq0[/tex]

Therefore, [tex]x=-2[/tex] is not a solution to [tex]4x^3-x^2+16x-4[/tex]

is 2x+3y=5 a straight-line graph​

Answers

Answer:

Yes, it is

Step-by-step explanation:

A straight line graph is of the general form;

y = mx + b

where m is the slope and b is the y intercept

We can rewrite what we have as

3y = -2x + 5

y = -2x/3 + 5/3

As we can see, it can be expressed in the general form and that makes it a straight graph

Estimate each of the following using general rule:
a) 4345 + 6784
b) 6947 x 378

Answers

Answer:

a) 11,129

b) 2,625,966

I think that the answer

An electric blender has a price of $240 after import duty is added to the cost price.What is the cost price of the blender if import duty is 20%?

Answers

Answer:

$200

Step-by-step explanation:

Given :

Cost of blender + import duty = $240

Import duty = 20% of cost price

Let :

Cost of blender = x

Import duty = 20% of x = 0.2x

Therefore,

x + 0.2x = $240

1.2x = 240

x = 240 / 1.2

x = $200

Cost of blender = $200

Three Bell ringing constituency in intervals of 30,36 and 45 minutes respectively. At what time will they ring together again if they ring simultaneously at 8:00 a.M.​

Answers

Answer:

The bells will ring simultaneously at 11.00 a.m

Step-by-step explanation:

Firstly, what we have to do here is to get the lowest common multiple the three numbers

The numbers are the given minutes

These are 30,36 and 45 minutes

The lowest common multiple of these three is 180 minutes

Now, we convert this to hours

60 minutes = 1 hour

180 minutes = x hours

x * 60 = 180 * 1

x = 180/60

x = 3 hours

If we added this to 8 am, we have 8 + 3 = 11 a.m

if LMNO is a rectangle, and MO=54, what is the length of line NP?
answers
a.) 34
b.) 22
c.) 18
d.) 108
e.) 27
f.) cannot be determined

Answers

Answer:

27 is the correct answer

Answer:

27

Step-by-step explanation:

Which word BEST describes 3x, 5y, and z in the expression 3x − 5y + z?
A) terms
B) products
C) variables
D) coefficients

Answers

Answer:

Co-efficients

Step-by-step explanation:

there is a number and variable.

Gavyn was thinking of a number. Gavyn subtracts 8.3 from the number and gets an answer of 52.7. Form an equation with x from the information.

Answers

x - 8.3 = 52.7

x = 61

Evaluate 13 - 0.75w+8x when w=12 and x= 1 over 2

Answers

Answer:

8

Step-by-step explanation:

Given:

13 - 0.75w + 8x

where,

w = 12

x = 1/2

13 - 0.75w + 8x

Substitute the value of w and x into the equation

= 13 - 0.75(12) + 8(1/2)

= 13 - 9 + 8/2

= 13 - 9 + 4

= 8

Therefore,

13 - 0.75w + 8x = 8

I kinda need help

What is the fraction 1/4 in decimal form?


I need help with this one to

Solve 3^3

Answers

Answer: easy

Step-by-step explanation: 0.25 there

Increase 14187.13 by 14.5

Answers

Answer:

14201.63

Step-by-step explanation:

14187.63

+   14.50

=14201.63

PLEASE HELP!!!

Write the factored form of the least common denominator needed to simplify this expression

Answers

Yea I’m not really sure I need help on that too

Answer:

(g+5)x(g-3)

Step-by-step explanation:

PLEASE I NEED HELP!!!!

Answers

Q. Determine if the rates are equilvalent. Explain your reasoning. 25 hours in 5 days; 8 hours in 2 days. . .

[tex] \dashrightarrow [/tex] No!, as, we have 25 hours in 5 dyas is the equals to 5. While, 8 hours in 2 days is equals to 4.

Here, is a difference of 1 in 5 and 4.


2. A carpenter wants to cut a wood board that is feet long
d on
5
into pieces that are feet long. How many whole pieces
can be cut from the board? How much wood is left over
16

Answers

Answer:

2 whole pieces

5/24 feet left

Step-by-step explanation:

divide 5/6 by 5/16 = 2 2/3 pieces

so there are 2 whole pieces and 2/3 small piece.

The 2/3 small short equals to 5/16 x 2/3 = 5/24 ft

Solve the problem correctly and show ur work

1 . 3/5 ( 15x + 30 )

Answers

Answer:

9(x + 2)

Step-by-step explanation:

3/5(x+30)

multiply fractions

3(15x + 30)/5

factor 3(15x + 30) = 45(x + 2)

divide the numbers

45(x + 2)/5

45/5=9

= 9(x + 2)

Answer:

9x + 18

Step-by-step explanation:

[tex]\frac{3}{5} ( 15x + 30 )[/tex]

9x + 18

Simplify (5np3)3
Question shown as picture

Answers

Answer:

[tex]125 {n}^{3} {p}^{9} [/tex]

Sienna is determining the solution 6b + 12 = 102 A:15 B:17 C:90 D:102​

Answers

A.15
102-12=90
90/6=15

Let t=4 and u=6+2i. Find t+u.

Answers

The answer for the following question is 12i.

Answer:

t + u = 10 + 2i

Step-by-step explanation:

t + u

= 4 + 6 + 2i ← collect like terms

= 10 + 2i

Other Questions
Read the excerpt from chapter 20 of The Awakening.That was about the substance of the two letters. Edna felt that if there had been a message for her, she wouldhave received it. The despondent frame of mind in which she had left home began again to overtake her, andshe remembered that she wished to find Mademoiselle Reisz.Which prediction is most likely based on the events that have emerged so far in The Awakening?A. Edna will not be able to find Mademoiselle Reisz despite her best efforts.B. Edna will change her mind about finding Mademoiselle Reisz due to fatigue.C. Mademoiselle Reisz will tell Edna to embrace her duties as a wife and mother.D. Mademoiselle Reisz will play a key role in Edna's transformation of self.Please hurry Im on a time limit!!!!!!PLEASE ANSWER QUICKLY IM RUNNING OUT OF TIME!!!!! Describe the biome in which you currently live, or one in which you want to live, or have lived. What are the atmospheric conditions (wind pattern, humidity level, etc), solar intensity, and geographic/oceanographic features that have produced this unique ecosystem A right triangle has side lengths 5, 12, and 13 as shown below. Use these lengths to find tanB, sin B, and cos B. (WORK INCLUDED GIVING BRAINLEST TO BEST ANSWER) Can someone please help I really need these points A copper block receives heat from two different sources: 5 kW from a source at 1500 K and 3 kW from a source at 1000 K. It loses heat to atmosphere at 300 K. Assuming the block to be at steady state, determine (a) the net rate of heat transfer in kW; (b) the rate of entropy generation in the system's universe If you think more carefully about your plan to complain to the company's CEO, I'm sure you will agree with me that it is not a good idea. After all, I am your boss. I have more experience than you, and I decide who gets fired around here.Required:a. Does it commit a fallacy? b. Does it commit an appeal to pity fallacy? write a request question CUL ES LA DIFERENCIA ENTRE LA OPININ DE UNA PROBLEMTICA SOCIAL Y EL ESTUDIO DE DICHAPROBLEMTICA? Please help ASAP ASAP giving brainliest please answer(answer D is) Marco's, George, Andy, Rubens A BCD? why you like stomy weather in paragraph (4 5) 7 = 7 _________ (4 7) 20 (7 - 5) (5 + 7) Find the missing dimensions This mountain slope towers over a town several hundred feet below. Which two weather events present the highest risk to the town . What is the phenotypic ratio of complementary gene? a) 1:2:1 b) 9:7 c) 13:3 d) 9:3:3:1 What is the surface area of this cone?A) 161pi ft^2B) 49pi ft^2C) 112pi ft^2D) 125pi ft^2 Types of forest management techniques. Jefferson Company's demand for its only product exceeds its manufacturing capacity. The company provided the following information for the machine whose limited capacity is prohibiting the company from producing and selling additional units.Actual run time this week 5,696 minutesMachine time available per week 6,400 minutesActual run rate this week 1.68 units per minuteIdeal run rate 2.00units per minuteDefect-free output this week 12,670 unitsTotal output this week (including defects) 18,100unitsRequired:1. Compute the utilization rate. (Round your answer to 2 decimal places.)2. Compute the efficiency rate. (Round your answer to 2 decimal places.)3. Compute the quality rate. (Round your answer to 2 decimal places.)4. Compute the overall equipment effectiveness (OEE). (Do not round intermediate calculations. Round your final answer to 3 decimal places.) Three strategies to help learners deal with socio-economic factors 1. My number has two digits.2. Double my number is less than 150.Follother3. I am not divisible by 12.4. My digits are different from each other.5. The second digit in my number is divisibleby an odd number.6. My first digit is less than my second digit.7. My digits add up to 14.way.