Mathematics High School

Helppp plzzzzzzz i need some help

Answers

Answer 1

Step-by-step explanation:

x² + 8x + 15

(x²+5x)+(3x+15)

x(x+5) + 3(x+5)

(x+3) (x+5)

You can notify me if you don't understand

Answer 2

Answer:

x-ints: (-5,0) and (-3,0)

Factors: (x+5)(x+3)

Step-by-step explanation:

First, make the equation equal 0. Then, because x² is x × x, factor it by doing a diamond, so you're seeing what times 15 equals 8, so 3 times 5. The factors would be (x+5)(x+3).

Then, to get the x-ints, put that back into the equation: (x+5)(x+3)=0.

-5 + 5=0 and -3 + 3=0, so x=-5 and -3, so the x-ints are (-5,0) and (-3,0)

(I got u and hope this helps :P)

Related Questions

Write the following equation in slope-intercept form and identify the slope and y-intercept.
X + y = 12
The equation in slope-intercept form is y =

Answers

Answer:

Your answer is

slope is -1

y intercept is 12

Hope that this is helpful. Tap the crown button, Like & Follow me

In the figure below, find the exact value of z.

Answers

9514 1404 393

Answer:

z = 9/2

Step-by-step explanation:

The triangles in the figure are all similar, so the side lengths are proportional.

long side/hypotenuse = z/6 = 6/8

z = 36/8 = 9/2 . . . . multiply by 6

Consider the linear equation x- 3/2y = 2

Answers

Answer:

don't know

Step-by-step explanation:

not really sure

The nile river is the longest river in the world it is 4,160 long i want to spend three week travilng about the same number of mile each day estmate the number of

Answers

Answer: 198 miles

Step-by-step explanation:

Here's the complete question:

The Nile river is 4160 miles long, you want to spend three weeks traveling the entire length of the river. Estimate the number of miles you should travel each day.

We should note that 7days = 1 week

3 weeks = 3 × 7 = 21 days.

The number of miles that should be travelled each day will be:

= 4160 / 21

= 198 miles

A linear equation is shown on the graph. Which equation best represents the
relationship between x and y?
SOMEONE PLEASE HELP ASAP

Answers

Answer:

y=2x+1

Step-by-step explanation:

A school is going on a field trip to a museum. The ratio of men to women to children is 1:3:20 and there are 216 people on this trip. What is the difference between the number of children and adults?

Answers

Answer:The difference between the number of children and adults=153

Step-by-step explanation:

ratio of men to women to children is 1:3:20

Total RATIO = 1+ 3+ 20= 24

Number of men = ratio of men / Total ratio x Total Number of people on the trip =

= 1/24 x 216= 9 men

Number of women=ratio of women / Total ratio x Total Number of people on the trip = 3/ 24 x 216 = 3x 9= 27 women

Number of children=ratio of Children/ Total ratio x Total Number of people on the trip = 20/24 x 216= 20 x9 = 180 children

The difference between the number of children and adults will be 180 -27 = 153

You don't have to tell me how you got it just make sure your right!!!!

Pls Help.

Answers

Answer:

The opposite of -4: 4

The opposite of 5: -5

The opposite of the opposite of -6: -6

If a child weighs 97 pounds, how many ounces does she weigh?

Answers

Answer:

1552

Step-by-step explanation:

Probably anyway

If 1 pound = 16 ounces

97x16=1552 ounces

True or False. Shapes that have at least one right angle also have at least one pair of perpendicular lines. Explain your thinking.

Answers

Answer:

True

Step-by-step explanation:

In geometry, the property of being perpendicular is the relationship between two lines which meet at a right angle.

5x (x - 4) = 0
Solve it in standard form

Answers

Answer:

x=0 or x=4

Step-by-step explanation:

5x(x−4)=0

✔Answer this for extra 5+ Points and Brainiest [15+ Points] <---✔‍ and please give me the correct one if not I just report and get my points back

Answers

Answer:

there's no question

Step-by-step explanation:

Find the slope and y-intercept.
slope
y-intercept
y = 3x – 4

Answers

Answer:

Slope= 3x

y intercept= -4

Step-by-step explanation:

What is the difference between largest and smallest fraction below?

1/5 7/20 3/10

Answers

answer: 3
because 1/5 is equal to 4/20 and 3/10 is equal to 6/20 so the largest fraction is 7/20. difference between 7 and 4 is 3.
idek if that's correct

Can y’all help me with this I just need the equation...thanks ❤️

Answers

Timani has bought 6 games

Answer:

350 - 200 = 150

150 is total games purchased

now divide 150 by 25

150 / 25 = 6

Timani bought 6 video games, and one console for 350

Pls help

Zoom in to view

Thanks

Answers

Answer:

1. x=6 y=6

2. x=3√2 y=3

3. a=5√2 b = 5

4. u=2 v=√2

5. x=2√2 y=2

6. x=6 y=3√2

Step-by-step explanation:

A bag contains red and green marbles of equal size. There are more red marbles than green marbles in the bag. A marble is chosen from the bag without looking. Which point could represent the probability that a red marble is chosen? A B C D E

Answers

A because it is the best method for studying for exams and exams in the or so that is not working as well in the form for the test to get a

(18—12)^2+(16/4)/-10+12
Find the simplest form

Answers

the answer would be 38

At $350 per person, an airline anticipates selling 200 tickets for a particular flight. At $450 per person the airline anticipates selling 100 tickets for the same flight .

Answers

Answer:

C =-x + 550

Step-by-step explanation:

Complete question

At $350 per person, an airline anticipates selling 200 tickets for a particular flight. At $450 per person the airline anticipates selling 100 tickets for the same flight .Find the linear equation between the cost per ticket and the number of tickets.

Find the complete question attached

Let x be the total number of tickets sold

C be the cost per ticket

If C = $350, x = 200

when C = $450, x = 100

Get the slope

m = C2-C1/x2-x1

m = 450-350/100-200

m = 100/-100

m = -1

Substituting into the point slope form of the equation;

C - C1 = m(x-x1)

Substituting m = -1, C1 = 350 and x1 = 200

C - 350 = -1(x-200)

C - 350 = -x + 200

C = -x + 200 + 350

C = -x + 550

Hence the required linear equation is C =-x + 550

The linear equation should be C =-x + 550

Linear equation:

Here we assume x be the total number of tickets sold

And,

C be the cost per ticket

Since C = $350, x = 200 and C = $450, x = 100

So, here the slope should be

[tex]m = C2-C1\div x2-x1\\\\m = 450-350\div 100-200\\\\m = 100\div -100[/tex]

m = -1

Now here we Substituting into the point slope form

So,

C - C1 = m(x-x1)

Here m = -1, C1 = 350 and x1 = 200

Now

C - 350 = -1(x-200)

C - 350 = -x + 200

C = -x + 200 + 350

C = -x + 550

It is an incomplete question. Please find the complete question below.

Learn more about equation here: https://brainly.com/question/24768692

is this correct?
if not does anybody know which one it is

Answers

You are right thank me later lol

Answer:

hey, i just did this question and double checked everything and i got a different answer.

So C, =x^2−25 should be the correct one

Step-by-step explanation:

good luck on the test

Which expression is equivalent to 4(u+11w)
? PLZ I need this

Answers

Answer:

4u+44w

Step-by-step explanation:

4(u+11w)

4*u+4*11w

4u+44w

Write an expression for "the difference of 10 and x."
Help will give branily

Answers

Answer:

10-x

Step-by-step explanation:

The difference of 10 and x is subtracting x from 10

2. Find the glven angle, to the nearest degree.
48
?
50

Answers

Answer:

46.16

Step-by-step explanation:

[tex]B=arcsin(\frac{opp}{hyp} )[/tex]

good luck, i hope this helps :)

Solve the system of equations by substitution. Show all work neatly on your work page. Checking your work is wise. :)

3x + 2y = -10

y = -5x + 9

Answers

Answer:

(4, -11)

Step-by-step explanation:

We are given the system of equations:

[tex]\displaystyle \begin{cases} 3x+2y=-10\\ y=-5x+9\end{cases}[/tex]

And we want to solve by substitution.

Notice that y is isolated in the second equation.

Therefore, we can substitute the second equation into the first. This gives us:

[tex]3x+2(-5x+9)=-10[/tex]

Now, we can solve for x.

First, distribute:

[tex]\displaystyle 3x-10x+18=-10[/tex]

Next, we can combine like terms:

[tex]-7x+18=-10[/tex]

Subtract 18 from both sides:

[tex]-7x=-28[/tex]

And divide both sides by -7:

[tex]x=4[/tex]

So, the value of x is 4.

Using the second equation then, we can solve for y:

[tex]y=-5x+9[/tex]

Since we know that x = 4:

[tex]\displaystyle y = - 5(4) + 9 = -20 + 9 = -11[/tex]

So, our solution is (4, -11).

To check, we can simply substitute the x and y values and see if the two equations are true.

For the first equation:

[tex]3(4)+2(-11)=12-22=-10\stackrel{\checkmark}{=}-10[/tex]

And for the second equation:

[tex]-5(4)+9=-20+9=-11\stackrel{\checkmark}{=}-11[/tex]

Since both statements are true, (4, -11) is indeed correct!

Lisa walks 105 blocks in 7 hours. What is the unir rate in blocks per hour

Answers

Answer:

15 blocks per hour

15 blocks per hour is the answer

100 POINTS 100 POINTS 100 POINTS 100 POINTS I WILL MARK BRAINLIEST
JUST ANSWER CORRECTLY THE ANSWER 12 IS WRONG PLEASE GIVE THE RIGHT ANSWER

Answers

Answer:

Step-by-step explanation:

given tanB= 4/3

so sinB=4/5

n cosB=3/5

given BC=15

BA=BC*cosB

=15*3/5

AC=BC*sinA

=15*4/5

=12

Triangle ABC and DBE are similar by AAA

DB= BA-AD

=9-3

DB/BA=DE/AC

6/9=DE/12

DE=12*6/9

Answer:

DE = 8

Step-by-step explanation:

ΔABC and ΔDBE are similar.

As they share the same angles, the sides are in proportion to each other.

Therefore, we can solve using ratios.

Tan trigonometric ratio

[tex]\sf \tan(\theta)=\dfrac{O}{A}[/tex]

where:

[tex]\theta[/tex] is the angleO is the side opposite the angleA is the side adjacent the angle

Given:

[tex]\sf \tan (B)=\dfrac{4}{3}[/tex]

Therefore:

[tex]\implies \sf \dfrac{DE}{BD}=\dfrac{AC}{BA}=\dfrac{4x}{3x}[/tex]

We know that BC = 15 and that AC : BA = 4x : 3x

Using Pythagoras' Theorem:

[tex]\implies \sf (3x)^2+(4x)^2=15^2[/tex]

[tex]\implies \sf 9x^2+16x^2=225[/tex]

[tex]\implies \sf x^2(9+16)=225[/tex]

[tex]\implies \sf x^2=9[/tex]

[tex]\implies \sf x=3[/tex]

Therefore,

⇒ AC = 4 · 3 = 12

⇒ BA = 3 · 3 = 9

Now we have found the length of BA, we can find the length of BD:

⇒ BD = BA - DA

⇒ BD = 9 - 3

⇒ BD = 6

As DE : BD = 4x : 3x and BD = 6 then:

⇒ 3x = 6

⇒ x = 2

Therefore, to find DE, substitute x = 2:

⇒ DE = 4x

⇒ DE = 4(2)

⇒ DE = 8

What is the equation of the line that passes through the point (5, 0) and has a
slope of -1?

Answers

Answer:

y-0= -1(x-5)

y= -x+5

x+y-5=0

Answer:

y=-x+5

Step-by-step explanation:

y-y1=m(x-x1)

y-0=-1(x-5)

y=-x+5

Question 4 (1 point)
2(p+1) = 24

Question 4 options:

p= 11

p= 11.5

p= 12.5

p= 13

Answers

Answer:

p=11

Step-by-step explanation:

1 + 11 = 12

12 × 2 = 24

so the answer is p=11

2(p+1)=24 simplifies to 2p+2=24
24-2=22
so now we have 2p=22
divide on both sides to isolate the variable
22/2=11
2p/2=p
the answer is p=11

Can someone help ASAP pls

Answers

Answer:

Step-by-step explanation:

first the answer is most definenetly 130 and 160 and i dont think its 30 so 50.

What is the answer? Yes or no

Answers

Answer:

Yes

Step-by-step explanation:

4 is less than 9

Answer:

yes

Step-by-step explanation:

2. What are the solutions to 16x2 - 12x = 54? Select all that apply.

Answers

Answer:

x=-3/2, 9/4

Step-by-step explanation:

Other Questions

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