How many x-intercepts does the graph of y = 4x2 + 5x + 2 have?

Answers

Answer 1

Answer:

Step-by-step explanation:

hello : y= 4x² + 5x + 2

the x-intercepts  when y=0  means : 4x² + 5x + 2=0

a=4   b= 5   c=2

∆ = b²- 4ac     ∆ = (5)²- 4(4)(2) =25-32 = -7

∆ < 0 no reals solutions no  x-intercepts  


Related Questions

Find two numbers, if their sum is 49 and their difference is 1/2 .

Answers

Answer:

[tex]x=24\frac{3}{4}\\ y=24\frac{1}{4}[/tex]

Step-by-step explanation:

Let the two numbers be x and y

So we have:

[tex]x +y = 49\\x-y=\frac{1}{2}[/tex]

using the elimination method, add the two equations together:

[tex]2x=49\frac{1}{2} \\2x=\frac{99}{2}[/tex]

solve for x:

[tex]x=\frac{99}{4}\\x=24\frac{3}{4}[/tex]

substitute our value for x back into the first equation we made:

[tex]x+y=49\\(\frac{99}{4}) + y=49\\y=49-\frac{99}{4}\\y=\frac{97}{4} \\ y=24\frac{1}{4}[/tex]

therefore,

[tex]x=24\frac{3}{4}\\ y=24\frac{1}{4}[/tex]

what is the amount paid or charged for something.

Answers

Answer:

cost

Step-by-step explanation:

Answer:

It is the cost

Step-by-step explanation:

It takes two men six hours to paint a fence. How long would it take three men to paint the same fence?

Answers

Answer:

Step-by-step explanation:

If 2 men take 6 hrs to paint the fence, then

  3 men would  obviously take  less time to paint the same fence;

            2 men= 6 hrs

            3 men= ?

thus, the time taken by three men to paint the same fence=2/3 ×6 hrs

                                                                                                = 4 hrs

Someone be a homie cause I’m really tryin on this math shi thank youuuu

Answers

Answer:

The area of the shaded region is equal to difference of the sector contains that shaded region and the triangle.

The area of sector:

A_S = pi x radius^2 x 123/360

       = pi x 18.6^2 x 123/360

       = 371.346 (m2)

The area of triangle:

A_T = base x height x (1/2)

       = (18.6 x sin(123/2) x 2) x (18.6 x cos(123/2)) x (1/2)

       = 145.073 (m2)

=> Area of shaded region:

A = 371.346 - 145.073 = 226.273 = ~226.3 (m2)

Hope this helps!

:)

Answer:

First give me points and make me winner, then we can discuss the answer.

Step-by-step explanation:

pls help asappp you will get brainliest

Answers

Answer:

32 units.

Step-by-step explanation:

look up a picture of a 306090 triangle, it will make sense :)

Answer:

32

Step-by-step explanation:

cos 30 = [tex]\frac{\sqrt{3} }{2}[/tex]

[tex]\frac{\sqrt{3} }{2}[/tex] = 16[tex]\sqrt{3}[/tex] / n

n = 16[tex]\sqrt{3}[/tex] * [tex]\frac{2}\sqrt{3} }[/tex]

n = 32 units

The following equation is true for all real values of n for which the expression on the left is defined, and B is a polynomial expression.

Answers

Answer:

6n^3

Step-by-step explanation:

3/3 *9^10/453*7+sqrt175

The polynomial expression is [tex]$B=6 n^{3}[/tex] ; where, [tex]\quad n \neq 0[/tex].

What is Polynomial expression?

Given:

[tex]$\frac{n^{2}+12 n+27}{3 n^{3}+9 n^{2}} \div \frac{2 n^{2}+18 n}{B}=1$[/tex]

To find:

the value of B is a polynomial expression.

Step 1

Let, [tex]$\frac{n^{2}+12 n+27}{3 n^{3}+9 n^{2}} \div \frac{2 n^{2}+18 n}{B}=1$[/tex]

[tex]$\frac{\frac{n^{2}+12 n+27}{3 n^{3}+9 n^{2}}}{\frac{2 n^{2}+18 n}{B}}=1$$[/tex]

Simplifying the above equation as

[tex]$\frac{\frac{n^{2}+12 n+27}{3 n^{3}+9 n^{2}}}{\frac{2 n^{2}+18 n}{B}}: \frac{B}{6 n^{3}}$[/tex]

then, we get

[tex]$\frac{B}{6 n^{3}}=1$$[/tex]

Step 2

Multiply both sides by [tex]$6 n^{3}$[/tex], then we get

[tex]$\frac{B}{6 n^{3}} \cdot 6 n^{3}=1 \cdot 6 n^{3} $$[/tex] where, [tex]\quad n \neq 0[/tex]

Simplifying the equation as

[tex]$B=6 n^{3}[/tex] ; where, [tex]\quad n \neq 0[/tex]

The value of [tex]$B=6 n^{3}[/tex] ; where, [tex]\quad n \neq 0[/tex].

Therefore, the polynomial expression is [tex]$B=6 n^{3}[/tex] ; where, [tex]\quad n \neq 0[/tex].

To learn more about polynomial expression

https://brainly.com/question/12978781

#SPJ2

someone plz help it looks easy but I dont understand

Answers

Answer:

Step-by-step explanation:

(√8)²=8,2²+2²=8

√8→2 units,2 units

(√7)²=7,(√5)²+(√2)²=5+2=7

√7→√5 units,√2 units

(√5)²=5,2²+1²=5

√5→2 units ,1 unit

3²=9,2²+(√5)²=9

3→2 units,√5 units.

You received your monthly bank statement and you are reconciling your account balance using the information below. What is the true balance of your checking account?

Answers

srry idk but I followed u

Answer:

The answer is $299.97 , I took the test.

Step-by-step explanation:

What value does the 3 represent n the number 16.344 ?

Answers

Answer:

Three hundred

Step-by-step explanation:

Because the whole number is sixteen thousand THREE HUNDRED forty four

Would a piece of wood with a mass of 48 grams and a volume of 47.4 cm^3 float in water?

Answers

The piece of wood would sink.

Given that water has a density of 1 g/cm^3 the piece of wood would have to be lower than such density. A bigger density would then mean said object would sink.

To find the density of the piece of wood you need to know the density formula which is d= m/v, m being mass and v being volume. With the givens of mass and volume you just need to plug your values in to get 48/47.4=d. Dividing would then equate to about 1.02, which exceeds the density of water, therefore sinking.

An easy way to find the answer to this is if you see that the volume is greater than the mass then it will float, if less then it will sink. If they are the same number then you can suggest that it depends on the water’s buoyancy.

The piece of wood would sink if a piece of wood with a mass of 48 grams and a volume of 47.4 cubic cm, and a density is 1 g/cm³.

What is density?

It is defined as the mass-to-volume ratio. The density indicates the object's density and is represented by the symbol. The density is measured in kilograms per cubic meter.

We have:

Mass of the piece of wood = 48 grams

The volume of the piece of wood = 47.4 cubic cm

As we know, from the definition of density, density is the mass-to-volume ratio.

d = mass/volume

d = 48/47.4

d = 1.01 g/cm³ ≈ 1 g/cm³

As we know,

It will float if the volume is larger than the mass and sink if the reverse is true.

Thus, the piece of wood would sink if a piece of wood with a mass of 48 grams and a volume of 47.4 cubic cm, and a density is 1 g/cm³.

Learn more about the density here:

brainly.com/question/952755

#SPJ5

Four angles are formed by the intersection of the diagonals of this quadrilateral. Which statement is NOT true?

Answers

I think I don’t know sorry

Answer:

Can’t really understand your question!!

Which of the following are whole numbers ?

Answers

Answer:

-1 and 3 should be right

Answer:

3

Step-by-step explanation:

Whole numbers are non-negative integers

A whole number can be 0 or positive with decimal/fraction part

Write in point-slope form an equation of the line that passes through the point
(3,−5) with slope -4

Answers

A horizontal line through y=−53. Explanation: Write the equation in the form y=mx+c because then we can read off the slope and the y-intercept ...

Answer:

Step-by-step explanation:

Which relationship is suggested by the scatter plot below?
A.The lighter the vehicle, the lower the gas mileage.
B.The heavier the vehicle, the higher the gas mileage.
C.The heavier the vehicle, the lower the gas mileage.
D.The weight of the vehicle does not affect the vehicle's gas mileage.

Answers

C. We see this because the scatter plot is going down in a negative direction, and the vehicle weight is going up on the x value

If I have a package deal if $80 what is the shipping price? PLEASE HELP

Answers

17 dollar and 54 cents

I need help with this, I don't understand how to do this.

Answers

Simple..A cyrcle first of all is a 360 degree angle...as a result

X=360-115-105-60

X=80 degrees

Pleaaaase hellp me will mark u brainly for both answers!!!
Thank u if u do really appreciate it.

Answers

Answer:

1. Option A is correct (A = length x width)

2. Option B is correct ( A = base x height/2)

Hope this helps

:)

What are the solutions of the quadratic equation? x^2-9x+18=0

Answers

Answer:

x=6   x=3

Step-by-step explanation:

x^2-9x+18=0

Factor

What 2 numbers multiply to 18 and add to -9

-6*-3 = 18

-6-3 = -9

(x-6) (x-3) =0

Using the zero product property

x-6 =0  x-3 =0

x=6   x=3

Create an algebraic expression with at least 2 variables, 2 different operations and a constant.

Choose values for all your variables but you must include at least one fraction or decimal number.


Lastly, Evaluate your expression showing all steps.

Answers

Answer:

let's choose

5x+3x-7y+2x-16y+3+-5y

1) give values to our variables:

x=3

y=4

so

5(3)+3(3)-7(4)+2(3)-16(4)+3-5(4)

15+9-28+6-64+3-20

1) first take this step-by-step and solve each term from left-right

15+9=24

24-28=-4

-4+6=2

2-64=-62

-62+3=-59

-59-20=-79

-79 is the answer

Tom bought a pen for $60 and sold it to gain 20% on his cost price. How much money did he gain.

Please answer quickly and honestly. You have 10 seconds to complete

Answers

Answer:

12

Step-by-step explanation:

that is because 20 of 60 is 12

60X20/100=12

Find the area of the composite figure below.
5 cm
2 cm
3 cm
a
16 cm?
b
17 cm
C
13 cm
d
10 cm2

Answers

Answer: D is the correct answer.

can you guy help for this questing
1234

Answers

Answer:

1. Median

2. Altitude

3.  Altitude

4. Neither

Step-by-step explanation:

Median- splits the side into two congruent parts

Altitude- Makes a right  angle

1. Splits the side. Median

2. Makes a right angle. Altitude

3.  Makes a right angle. Altitude

4. Doesn't make a right  angle or split the sides. Neither

In the diagram, the lines dividing the parking spaces are parallel. What must be true about <1 and <2? What theorem supports your conclusion?

Answers

Answer:

Option B.

Step-by-step explanation:

Given question is incomplete; find the question in the attachment.

Given figure shows the parking spaces are divided by the parallel lines.

Here the two lines having ∠1 and ∠2 are parallel and a transverse is intersecting these lines.

By alternate interior angles theorem, ∠1 and ∠2 will be equal in measure.

Therefore, Option B. will be the answer.

what is 2/3 ÷ 4/5 = ?

Answers

Answer:

this is the answer:5/6.

Answer:

= 5/6

Step-by-step explanation:

2/6 ÷ 4/5

= 2/6 × 5/4

= 10/24

= 5/6

Circle $A$ has a diameter of 12 inches and circle $B$ has a diameter of 22 inches. What is the ratio of the area of circle $A$ to the area of circle $B$? Express your answer as a common fraction.

Answers

Answer:

36/121

Step-by-step explanation:

The other person is wrong, don't listen to him. I have done this problem before.

can anyone write me the steps of how to graph y=(x-9)^, please?

Answers

Answer:

first step is to put the (x-9)^2 into a standard form which is y=x^2−18x+81 then choose two integers larger than the x-value of the vertex point.next choose two integers smaller than the x-value of the vertex point. lastly substitute these values in place of "x" in the equation and solve for "y".

Step-by-step explanation:

x | y

7 | 4

8 | 1

9 | 0

10 | 1

11 | 4

4=(11-9)^2

1=(10-9)^2

0=(9-9)^2

1=(8-9)^2

4=(7-9)^2

What would be the value of x in x+5=-3x-9

Answers

-3 because it shows the value right there

Answer  -3

Step-by-step explanation:

Katherine wants to classify the quadrilateral below. Select all of the names that apply.
A. Quadrilateral
B. Square
C. Parallelogram
D. Rectangle
E. Rhombus

Answers

Answer:

a, c, and e

Step-by-step explanation:

quadrilateral= a four-sided figure

square= a plane figure with four equal straight sides and four right angles

parallelogram= a four-sided plane rectilinear figure with opposite sides parallel

rectangle= a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square

rhombus =a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides

Answer:

A,B,D

Step-by-step explanation:

I had this question on a test and these were the correct answers. So this is guaranteed correct!

what are the first 100 hundred digits of pi?

Answers

Answer: first 1000 digest

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 4811174502 8410270193 8521105559 6446229489 5493038196 4428810975 6659334461 2847564823 3786783165 2712019091 4564856692 3460348610 4543266482 1339360726 0249141273 7245870066 0631558817 4881520920 9628292540 9171536436 7892590360 0113305305 4882046652 1384146951 9415116094 3305727036 5759591953 0921861173 8193261179 3105118548 0744623799 6274956735 1885752724 8912279381 8301194912 9833673362 4406566430 8602139494 6395224737 1907021798 6094370277 0539217176 2931767523 8467481846 7669405132 0005681271 4526356082 7785771342 7577896091 7363717872 1468440901 2249534301 4654958537 1050792279 6892589235 4201995611 2129021960 8640344181 5981362977 4771309960 5187072113 4999999837 2978049951 0597317328 1609631859 5024459455 3469083026 4252230825 3344685035 2619311881 7101000313 7838752886 5875332083 8142061717 7669147303 5982534904 2875546873 1159562863 8823537875 9375195778 1857780532 1712268066 1300192787 6611195909 2164201989

Step-by-step explanation:

Answer:

you aren't ready for this!!!!

Step-by-step explanation:

And now

AsapSCIENCE presents-

100 digits of π

3.14159, this is π

Followed by 2-6-5-3-5-8-9

Circumference over diameter

7-9, then 3-2-3

OMG! Can't you see?

8-4-6-2-6-4-3

And now we're on a spree

38 and 32, now we're blue

Oh, who knew?

7, 950 and then a two

88 and 41, so much fun

Now a run

9-7-1-6-9-3-9-9

Then 3-7, 51

Half way done!

0-5-8, now don't be late

2-0-9, where's the wine?

7-4, it's on the floor

Then 9-4-4-5-9

2-3-0, we gotta go

7-8, we can't wait

1-6-4-0-6-2-8

We're almost near the end, keep going

62, we're getting through

0-8-9-9, on time

8-6-2-8-0-3-4

There's only a few more!

8-2, then 5-3

42, 11, 7-0 and 67

We're done! Was that fun?

Learning random digits

So that you can brag to your friends

Solve the long division

Answers

Answer:

1. 158

2. 120.125

3. 148.6

4. 158.6

Step-by-step explanation:

You divide the number inside by the number outside

Other Questions
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