Which of the binomials below is a factor of this trinomial?
4x^2-7x-15
O A. 2x-5
O B. 4x+5
O C. 2x+5
O D. 4x-5

Answers

Answer 1

Answer:

(x-3)(4x+5)

Step-by-step explanation:

4x2−12x+5x−15

=4x(x−3)+5(x−3)

=(x−3)(4x+5)

Answer 2

Answer:

B

Step-by-step explanation:

Given

4x² - 7x - 15

To factorise the quadratic

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 4 × - 15 = - 60 and sum = - 7

The factors are - 12 and + 5

Use these factors to split the x- term

4x² - 12x + 5x - 15 ( factor the first/second and third/fourth terms )

= 4x(x - 3) + 5(x - 3) ← factor out (x - 3) from each term

= (x - 3)(4x + 5) ← in factored form

Hence 4x + 5 is a factor of the trinomial → B


Related Questions

A building has a concrete foundation that’s 24” wide and 36” deep at all points. How many cubic yards of concrete are necessary to pour the foundation for the back wall which is 30” in length?

Answers

Answer:

5/9 cubic yards

Step-by-step explanation:

Just so L*W*H=24(36)(30)= 25920 cubic inches=25920 (1 in*1 in* 1 in)

36 in=1 yd

so

1 in =1/36 yd

do divide 25920 by (36*36*36)

The answer in cubic yards is 5/9 cubic yards

Need help plz and thank you

Answers

That would be

y=3x+1

Answer:

y = 3x + 1

Step-by-step explanation:

The equation is in slope- intercept form

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 1) and (x₂, y₂ ) = (1, 4) ← 2 ordered pairs from table

m = [tex]\frac{4-1}{1-0}[/tex] = 3

Note the line crosses the y- axis at (0, 1) ⇒ c = 1

y = 3x + 1

a number x is multiplied by -2/3. The product is 0.25. what is the value of x?​

Answers

Answer:

-2/3x = 1/4

x = (1/4)(-3/2)

x = -3/8

Four students spoke to the Parents Club for a total of 2/3 hour

Answers

2/3 hour =2/3×60 min=40 min

2/3 hour=2/3×3600 seconds=2400seconds

The question is in the image. ( please answer ASAP)

Answers

Answer:

A.

male long sleeves: 3

Male short sleeves: 0

male rolled up sleeves: 2

Female long sleeves: 0

Female short sleeves: 2

Female rolled up sleeves: 1

B. 0/3

C. 2/5

Step-by-step explanation:

A car travels a distance of 104 miles in 4 hours. What is the speed in miles per hour?

Please do now

Answers

Answer:

26 mph

Step-by-step explanation:

d/t = r (distance/ time = rate)

104/4 = 26

Benjamin's age is 6 years less than twice Lucas's age. If Benjamin is 12 years old, how old is Lucas? Choose the answer below that is a viable solution to this problem.
A:3
B:5
C:7
D:9

Answers

Answer:

Answer is D: 9

Step-by-step explanation:

you would do 2x-6=12

Next: add 6 to both sides: 2X=18

Next: divide both sides by 2

Answer: X=9

Given that Benjamin's age is 6 years less than twice Lucas's age and Benjamin is 12 years old.

find  Luca's age?

Let x and y represent Luca's age and Benjamin's age respectively.

Then, according to the given information, we have

y = 2x-6⇒1

y=12      ⇒2

Substituting the value of y from equation (2) in (1), we get

y=2x-6

⇒12=2x-6

⇒2x=12+6

⇒2x=18

⇒x=18/2

x=9

Lucas's age is Option D. 9

Thus, the required age for Luca is 9 years.

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which number below belong to the solution set of the inequality x+16<51 ? check all that apply​

Answers

x + 16 > 51

x>35

Thus, A and D would be the answers.

Please mark brainliest and have a great day!

That would be 32, 16 and 34.

Line n has no x-intercept and it’s y-intercept is (0,-4)

Answers

Answer:

y = -4

Step-by-step explanation:

If the line has no x-intercept, then it's a horizontal line with equation

[tex]y=a,\ a\neq0[/tex]

The line passes through the point (0, -4). Therefore the equation of this line is:

[tex]y=-4[/tex]

Answer:

y = 4

Step-by-step explanation:

Since the line has no x-intercept, this means that the line has a slope of 0, meaning it is a horizontal line. So with the equation y = mx + b, mx cancels out to 0 because there is no slope. This leaves y = b, where b = 4. So the answer is y =4

20. The perimeter of a square is 72 in. What is its area?
72 in2
18 in2
324 in2
5,184 in2

Answers

The formula for perimeter is length + length + width + width

You know that all the sides of a square are equal to each other. That means that all the values in the perimeter formula should be the same. Therefore you can divide 72 by 4 (perimeter divided by the number of sides)

72 / 4 = 18

^^^Each side is 18 in

The formula for are is...

A = length x width

so...

18 * 18 = 324

324 in^2

Hope this helped!

~Just a girl in love with Shawn Mendes

Use the graph to complete the statements.

Answers

Answer:

the slope of jk is -6/5

the slope of pq is 4/5

the lines are (I don't know what options are given)

Step-by-step explanation:

you can use the x1 y1 formula

[tex]\frac{y2-y1}{x2-x1}[/tex]=[tex]\frac{-7-5}{10-0}[/tex]=[tex]\frac{-12}{10}[/tex]=[tex]\frac{-6}{5}[/tex]

therefore, the slope is -6/5

using the same formula;

tex]\frac{y2-y1}{x2-x1}[/tex]= [tex]\frac{4-(-8)}{0-(-5)}[/tex]=[tex]\frac{12}{15}[/tex]=[tex]\frac{4}{5}[/tex]

therefore, the slope is 4/5

and I would glady re-edit this answer if you can comment what the options for the last one are :)

Answer:

The slope of Jk is -6/5

The slope of PQ is 4/5

The lines are neither parallel or perpendicular

Step-by-step explanation:

A half-filled cylindrical water tank has a water level of 20 feet high. The tank can hold 6000 cubic feet of water. Find the diameter of the tank in feet to the nearest tenth.

Answers

Answer:

Diameter of tank = 19.5 ft

Step-by-step explanation:

Volume of cylinder = Base area x Height.

Base area = Area of circle

[tex]\texttt{ Area of circle}=\frac{\pi d^2}{4}[/tex]

Height = 20 ft.

Volume of tank = 6000 cubic feet .

[tex]\texttt{ Volume of cylinder = Base area x Height.}\\\\6000=\frac{\pi d^2}{4}\times 20\\\\d^2=381.97\\\\d=19.5ft[/tex]

Diameter of tank = 19.5 ft

which sentence explains why the slope of AB is equal to the slope of BC?

Answers

Answer:

Since AB = BE and DB =CE

Step-by-step explanation:

The ratio and of these two give the concept of slope

The last sentence explains why the slope of AB is equal to slope of BC.

What is a slope?

It is the measure of steepness of a line.

In the given figure, AD = BE and DB = EC

So, the ratio AD to BE is equal to the ratio BE to EC.

The slope of a line is given by,

slope = rise / run

Which is same as the above mentioned ratio.

Since AD = BE and DB = EC, their proportions are also equal. Therefore the slope of AB is equal to the slope of BC.

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Choose the correct simplification of (3x3y4z4)(2x3y4z2)

Answers

Answer:

6x^6y^8z^6

Step-by-step explanation:

(3x^3y^4z^4)(2x^3y^4z^2)

= 6x^(3+3) y^(4+4) z^(4+2)

= 6x^6y^8z^6

Answer:

(6x⁶y⁸z⁶)

Step-by-step explanation:

The given expression is (3x³y⁴z⁴) (2x³y⁴z²) and we have to simplify it.

= 6 (x)³⁺³ (y)⁴⁺⁴ (z)⁴⁺²    [Since xᵃ · xᵇ = xᵃ⁺ᵇ]

Therefore, simplified form of the expression is

(6x⁶y⁸z⁶)

What is the slope of the line shown in the graph? A coordinate plane graph is shown. Points are plotted at 0 comma 3 and 1 comma 1. The points are joined by a line. −1 −2 negative 1 over 2 2

Answers

The slope of the line shown in the graph is -2.

The slope of a line can be found using the formula slope = (change in y) / (change in x).

Given the points (0, 3) and (1, 1),

we can calculate the slope by finding the difference in y-coordinates and dividing it by the difference in x-coordinates.

Slope = (1 - 3) / (1 - 0) = -2.

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If (-3, y) lies on the graph of y = 3^x, then y =

Answers

Answer:

y = [tex]\frac{1}{27}[/tex]

Step-by-step explanation:

Given

y = [tex]3^{x}[/tex] and (- 3, y) is a point on the graph, then

y = [tex]3^{-3}[/tex] = [tex]\frac{1}{3^{3} }[/tex] = [tex]\frac{1}{27}[/tex]

Answer:  The required value of y is [tex]\dfrac{1}{27}.[/tex]

Step-by-step explanation:  We are given that the point (-3, y) lies on the graph of the following equation :

[tex]y=3^x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

We are to find the value of y.

Since the point (-3, y) lies on the graph of equation (i), so it will satisfy the equation.

Therefore, substituting (-3, y) in equation (i), we get

[tex]y=3^{-3}\\\\\Rightarrow y=\dfrac{1}{3^3}\\\\\\\Rightarrow y=\dfrac{1}{27}.[/tex]

Thus, the required value of y is [tex]\dfrac{1}{27}.[/tex]

One x-intercept of a parabola is at the point (-3,0). Use the factor method to find the other x-intercept for the parabola defined by this equation:
y= -x^2-5x-6
Separate values with a comma

Answers

Answer:

The other x-intercept is (-2,0)

Step-by-step explanation:

-x^2-5x-6

-(x^2+5x+6)

We know x=-3 is a x-intercept so x+3 is a factor

-(x+3)(        )

The other factor has to be x+2 since 3(2)=6 and 2+3=5

So -x^2-5x-6 is the same as -(x+3)(x+2)

Which means the other x-intercept is (-2,0)

If 100 mL of a solution contains 20 g, how many milligrams will 20 mL contain?

Answers

Answer:

There are 4,000 milligrams

Step-by-step explanation:

We know that in 1 gram there are 1000 milligrams

To calculate how many milligrams equals 20 grams we perform the following operation

[tex]20\ g*\frac{1000\ mg}{1\ g}=20,000\ mg[/tex]

Then 100 mL of a solution contains 20,000 mg

To calculate how many milligrams there are in 20mL of the solution we perform the following operation

[tex]20\ mL*\frac{20,000\ mg}{100\ mL}=4,000\ mg[/tex]

determine the slope of each pair with fractions​

Answers

Answer:

Step-by-step explanation:

The slope here is -3.

This answer is found by using the formula I clipped below.

Hope that Helps!

What is the equation of the following line? (-3,1) and (0,0)

Answers

Answer:

y = (1/3)x

Step-by-step explanation:

If the y-intercept is (0, 0), then y = mx + b becomes y = mx.

Seeing that y increases by 1, going from (-3, 1) to (0, 0), and that x increases by 3, we determine that the slope, m, is 1/3.

The equation of this line is therefore y = (1/3)x.

Answer:it’s Y = - 1/3

Step-by-step explanation:

Which line represents the line that passes through (3/2-1/2) and has a slope of 1

Answers

Step-by-step explanation:

The point-slope of an equation of a line:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

We have

[tex]m=1\\\\\left(\dfrac{3}{2},\ -\dfrac{1}{2}\right)\to x_1=\dfrac{3}{2},\ y_1=-\dfrac{1}{2}[/tex]

Substitute:

[tex]y-\left(-\dfrac{1}{2}\right)=1\left(x-\dfrac{3}{2}\right)[/tex]

[tex]y+\dfrac{1}{2}=1\left(x-\dfrac{3}{2}\right)[/tex] → the point-slope form

Convert to the slope-intercept form:

[tex]y+\dfrac{1}{2}=x-\dfrac{3}{2}[/tex]         subtract 1/2 from both sides

[tex]y=x-\dfrac{4}{2}[/tex]

[tex]y=x-2[/tex] → the slope-intercept form

We are creating a new card game with a new deck. Unlike the normal deck that has 13 ranks (Ace through King) and 4 Suits (hearts, diamonds, spades, and clubs), our deck will be made up of the following.

Each card will have:
i) One rank from 1 to 15.
ii) One of 9 different suits.

Hence, there are 135 cards in the deck with 15 ranks for each of the 9 different suits, and none of the cards will be face cards! So, a card rank 11 would just have an 11 on it. Hence, there is no discussion of "royal" anything since there won't be any cards that are "royalty" like King or Queen, and no face cards!

The game is played by dealing each player 5 cards from the deck. Our goal is to determine which hands would beat other hands using probability. Obviously the hands that are harder to get (i.e. are more rare) should beat hands that are easier to get.

a) How many different ways are there to get any 5 card hand?
The number of ways of getting any 5 card hand is

Answers

Answer:

Step-by-step explanation:

There are 5 cards we are selecting out of 135 cards so how many ways can we draw 5 cards at a time (w/o replacement)

There are 135 ways to choose the first card.

There are then 134 ways to choose the second card.

There are then 133 ways to choose the third card.

132 to choose the 4th

131 to choose the 5th.

Now multiply those giving 135*134*133*132*131 or you could have just said

135 P 5.

In case you don't know P means permutation.

Final answer:

The mathematics behind determining the number of different ways to get any 5 card hand from a deck of 135 cards involves combinatorics. Specifically, the combinations formula is used, which is C(n, r) = n! / [(n-r)!r!]. In this case, n is 135 (the total number of cards) and r is 5 (the number of cards drawn).

Explanation:

The subject of this question concerns probabilities in the game theory section of mathematics, specifically revolving around understanding the combinatorics of card hands in a uniquely structured card game.

Using combinatorial mathematics, the number of ways to get any 5-card hand from a deck of 135 cards can be calculated by using the combinations formula which is: C(n, r) = n! / [(n-r)!r!]. In this instance, 'n' represents the number of total outcomes (135 cards) and 'r' is the number of outcomes chosen at a time (5 cards).

So to find the number of 5-card hands, you would calculate it as follows:

C(135, 5) = 135! / [(135-5)!5!]

The factorial of a number, denoted as '!', is the product of the number and all the consecutive numbers below it down to 1. So 5! = 5*4*3*2*1. Calculating this large of a number directly can be a bit tricky, but there are online tools that can help!

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HELLPP
What is economic utility

Answers

Hello There!

Economic utility is the amount of satisfaction a consumer receives from the consumption of a particular product or service.

Answer:

The capacity of a good or service to meet the demand of a consumer. The amount of economic utility of a good or service determines what the demand will be for that good or service, which impacts the price that people will be willing to pay to obtain it

Step-by-step explanation:------------------------------------------)-

What is the axis of symmetry of f(x) = -2x2 + 8x - 7

Answers

bearing in mind that the squared variable is the "x", and thus this is a vertical parabola, therefore its axis of symmetry will come from the x-coordinate of its vertex.

[tex]\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{+8}x\stackrel{\stackrel{c}{\downarrow }}{-7} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left(-\cfrac{8}{2(-2)}~,~-7-\cfrac{8^2}{4(-2)} \right)\implies \left( \cfrac{8}{4}~,~-7+8 \right)\implies (2,1) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{\textit{axis of symmetry}}{x=2}~\hfill[/tex]

The data set represents the total number of tuba players in each of 11 different school band
0,1,3,3, 4, 4, 4, 5, 6, 6, 8
What is the lower quartile of the data?
O
1
ooo

Answers

Answer:

3

Step-by-step explanation:

To find the lower quartile first locate the median.

The median is the middle value of the data set arranged in ascending order.

The data given is in ascending order

0, 1, 3, 3, 4, 4, 4, 5, 6, 6, 8

                    ↑ ← The median is 4

The lower quartile is then the middle value of the data to the left of the median.

0, 1, 3, 3, 4

       ↑ ← the lower quartile is 3

The lower quartile of the data is given as 3

What is lower quartile of the data?

Lower quartile of the data is the median of all the observations till the median of the given observations.

What is median?

Median is the middle observations of the set of observations.

How to find the what is the lower quartile of the data?First we should find the median of given observations.

The median is the mid value which is 4

So, the values till 4 are 0, 1 , 3, 3, 4,

Now we have to find the median of these observations.

∴  The median is the mid value which are 3

∴ The lower quartile of the data is given as 3

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Consider the function g(x)=10/x

Answers

Answer:

The correct answers are:

(1) The vertical asymptote is x = 0

(2) The horizontal asymptote is y = 0

Step-by-step explanation:

(1) To find the vertical asymptote, put the denominator of the rational function equals to zero.

Rational Function = g(x) = 

Denominator = x = 0

Hence the vertical asymptote is x = 0.

(2) To find the horizontal asymptote, check the power of x in numerator against the power of x in denominator as follows:

Given function = g(x) = 

We can write it as:

g(x) = 

If power of x in numerator is less than the power of x in denominator, then the horizontal asymptote will be y=0.

If power of x in numerator is equal to the power of x in denominator, then the horizontal asymptote will be y=(co-efficient in numerator)/(co-efficient in denominator).

If power of x in numerator is greater than the power of x in denominator, then there will be no horizontal asymptote.

In above case, 0 < 1, therefore, the horizontal asymptote is y =

The vertical and horizontal asymptote are both 0

Lines L and K are parallel; what is the value of a + b?

Answers

Answer:

135°

Step-by-step explanation:

Draw a line that intersects the endpoint of the angle that is between L and K and is also perpendicular to L and K.

∠a+45°+∠b = 180°

∠a+∠b = 135°

if cota=5/12 evaluate 2sina-3cosa/4sina-9cosa

Answers

cot=cos/son
Cot(a)=cos(a) / sin(a)
Cos(a)=5
Sin(a)=12

2sina-3cosa / 4sina-9cosa
2(12)-3(5) / 4(12)-9(5)
24-15 / 48-45
9/3
3

Answer:

3.

Step-by-step explanation:

We have a triangle where opposite side = 12 , adjacent side = 5 and hypotenuse =  √(12^2 + 5^2) = 13   (because cot a = adjacent/ opposite side).

So  2sina - 3cosa / 4sina - 9cosa

= (2 * 12/13 - 3 * 5/13) / ( 4 * 12/13 - 9 * 5/13)

= (24/13 - 15/13) / (48/13 - 45/13)

=  9/13 / 3/13

= 9/13 * 13/3

= 3.

If a plane can climb at 2,400 feet per minute, how many minutes are needed to climb to 60,000 feet?
Make a Selection:
A. 18
B. 25
C.15
D.12

Answers

Answer:

b

Step-by-step explanation:

25 minutes

Answer:

B.25

Step-by-step explanation:

To find the amount of minutes, divide the total amount of feet from the feet per minute:

60000/2400 = 25

B. 25 is the amount needed to climb to 60,000 feet.

~

if Angle AOC =85 and angle BOC=2x+10 and angleAOB=4x-15 find the degress measure of BOC and AOB

Answers

Answer:

m angle BOC 120

m angle AOB 205

Step-by-step explanation:

So you are given mangle AOC+mangle BOC=mangle AOB.

mangle means measure of angle.

Let's do some substituting into our equation.

85+2x+10=4x-15

Solve for x... First I'm going to combine the like terms on the left hand side:

95+2x=4x-15

Add 15 on both sides

110+2x=4x

Subtract 2x on both sides

110     =2x

Divide both sides by 2

110/2   =x

x         =110/2

x          =55

So Recall mangle BOC=2x+10   =2(55)+10=110+10=120

And you also have mangle AOB=4x-15=4(55)-15=220-15=205

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