please help please help​

Answer:

  x² +2x -3 = 0

Step-by-step explanation:

Given the zeros of a quadratic function the factored form is easily found. There is a factor (x -p) for each zero x = p. Here, the factored form of the function is ...

  0 = (x -(-3))(x -1) = (x +3)(x -1)

In standard form, this is ...

  x(x -1) +3(x -1) = 0

  x² +2x -3 = 0 . . . . . . the terms have no common factors

Answer:

Width = 3.75 feet

Length = 9.75 feet

Step-by-step explanation:

Given:

Length of fencing = 27 feet

Find:

Dimensions of the garden

Computation:

Assume

Width = x

So,

Length = x + 6

2(L+B) = Perimeter

2(x + x + 6) = 27

2(2x + 6) = 27

4x + 12 = 27

4x = 15

x = 3.75

Width = 3.75 feet

Length = 3.75 + 6 = 9.75 feet

Answer: 15 gallons

Step-by-step explanation:

Here you are going to want to set up a proportion. 918 miles per 27 gallons = 510 miles per x gallons

918/27 = 510/x

Cross multiply and you get 918x = 13770

and you get x = 15

Or you could do 918 miles / 27 gallons = 34 miles / gallon

and divide the 510 miles of distance by how many miles per gallon, so

510 / 34

15

Answer:

-7n - 3

Step-by-step explanation:

5n-3(4n+1) =

5n -12n -3= 0

-7n - 3

Answer: -7n-3

Step-by-step explanation: first bring the 5n down then multiply -3x4n gives you -12 and multiply 5x1 that gives you 5 so you would write (5n−12n)−3

then remove the parentheses combine like terms like 5 and 12 are alike because of the n's that means subtract because of the - sign 5-12 which gives you -7 and then you bring down -3 because it's outside the parentheses and that's the answer.

Answer:

37.5%

Step-by-step explanation:

the savings on the sweater is 140-87.50, or 52.50

you could create a proportion based on the statement:

52.50 is what percent of 140?

is/of = 'x'/100

52.5/140 = x/100

cross-multiply to get:

140x = 5250

x = 5250/140

x = 37.5

rectangle area = lenght x width

so = (x+12) * (x-4) = x² - 4x + 12x - 48 = x² + 8x - 48

Answer:

I believe its B

Step-by-step explanation:

Answer:

14.) DC

community property

15.) 13+x

community property

12.) 6x-12

distributive property

Answer:

3/10 is 1/20 greater than 2/8.

Step-by-step explanation:

3/10 - 2/8

= 12/40 - 10/40

= 2/40

= 1/20

Answer:

-6/-2=3   (the answer is 3)

Step-by-step explanation:

Change in y/ Change in x. How you do it: -6-0/2-4=-6/-2=3

Hope this helped :)

Answer:

I'd rather use an explicit rule for bigger values of n

Step-by-step explanation:

Suppose we have a sequence like:

6,14,22,30,..

And we wanted to calculate the 200th term. The recursive rule is:

[tex]a_n=a_{n-1}+8[/tex]

Since each term is 8 more than the previous term. If we wanted to caclulate the term n=200, we would need to go up to 200 one-by-one until reaching the desired value.

The explicit rule is:

[tex]a_n=6+8(n-1)[/tex]

To find the term for n=200, just substitute into the rule:

[tex]a_{200}=6+8(200-1)=1598[/tex]

Thus, I'd rather use an explicit rule for bigger values of n

Answer:

Let's find the unit rate first, I like to order my units:

_________ = ______ = ______________, so 3 patients per hour is the

-unit rate.

Now let's order them to equal x(unknown patients)/9(hours)

___________  =   __________ = 27 patients per 9 hours. So your answer

is 27 patients.

Answer:

27 patients

Step-by-step explanation:

18patients = 6 hours

18/6 = 3

each hour for 6 hours she attends to 3 patient

6 hours + 3 hours make up 9 hours

since for each hour she attended to three patients we would say

1 hr = 3 patients

1 hr = 3 patients

1 hr = 3 patients

Total: 3 hrs = 9 patients

18 patients + 9 patients = 27 patients

so for 9 hrs Katherine will visit 27 patients.

Thank you

please mark me brainliest

Answer:

no y intercept

x=-4 is the x intercept

slope is undefined

Step-by-step explanation:

for the intercepts: x=-4. will be clear through a graph

NO Y INTERCEPTS since x=-4 is a vertical line.

slope: the slope is undefined.

Answer:

C. Lily worked day and night doing laundry

Step-by-step explanation:

Edge 2022

Answer:

c

Step-by-step explanation:

Answer: No. Manolo forgot to include that the opposite of squaring a number is square rooting. If you take the square root of 36, you get 6. When you square a number, you multiply it by itself, which is what Manolo did. He multiplied 6 by itself and got the answer of 36.

Step-by-step explanation: Hope this helps!

The Manolos reasoning is not complete because the quadratic equation has two roots and the roots are 6 and -6.

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex]  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

[tex]\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}[/tex]

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

It is given that:

A quadratic equation:

g² = 36

Manolo says that the solution of the equation g squared equals 36 is g = 6 because 6×6 = 36

As we know, the quadratic equation has two roots.

To solve the quadratic equation we can use the identity:

a² - b² = (a + b)(a - b)

g² = 36

g² - 36 = 0

g² - 6² = 0

(g + 6)(g - 6) = 0

g + 6 = 0 ⇒ g = -6

g - 6 = 0 ⇒ g = 6

Thus, the Manolos reasoning is not complete because the quadratic equation has two roots and the roots are 6 and -6.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ5

Answer:

82.479

Step-by-step explanation:

You need to find out what 95% of the end cost is to determine the cost before the increase.

you can also find out what 5% per month and then subtract it form 86.82

I hope that makes sense and helps :)

Answer:

Step-by-step explanation:

[tex]3\cos x=5\tan x\\\\3\cos x=5\cdot\dfrac{\sin x}{\cos x}\\\\3\cos^2 x=5\sin x\\\\3(1-\sin^2x)=5\sin x\\\\-3\sin^2x-5\sin x+3=0\\\\t=\sin x\qquad\qqaud t\in<-1, 1>\\\\-3t^2-5t+3=0\\\\3t^2+5t-3=0\quad\implies\quad a=3\,,\ b=5\,,\ c=-3\\\\t=\dfrac{-5\pm\sqrt{5^2-4\cdot3\cdot(-3)}}{2\cdot3}=\dfrac{-5\pm\sqrt{25+36}}{6}=\dfrac{-5\pm\sqrt{61}}{6}\\\\t_1=\dfrac{-5+\sqrt{61}}{6}\approx0.4684\ ,\qquad t_2=\dfrac{-5-\sqrt{61}}{6}\approx-2.136\notin<-1,\,1>[/tex]

[tex]\sin x=0.4684\quad\wedge\quad x\in(0^o,\ 360^o)\\\\x\approx28^o\qquad\qquad\vee\qquad x\approx152^o\\\\\\\sin x=0.4684\quad\wedge\quad x\in(0,\ 2\pi)\\\\x\approx0.4887\qquad\qquad\vee\qquad x\approx2.6529[/tex]

Answer:

Option A:  an exponential graph decreasing from the left and crossing the y axis at 0 comma 5

Step-by-step explanation:

It has to start with a y-intercept of 21 because f(x) or as another way of saying it, y, equals 21 and then the number has to halve itself and thats why its so steep in the beginning.  Hope this helps :)

Answer:

B

Step-by-step explanation:

(so that poeple know previos person messed up and said that in comments i didnt want any1 els to have that mistake.)

Answer:

(2,3)

Step-by-step explanation:

Answer:

(2, 3)

Step-by-step explanation:

The formula for midpoint is: M = [tex]\frac{(x_{1}+x_{2} )}{2} , \frac{(y_{1} + y_{2}) }{2}[/tex]

Measure the distance between the two end points, and divide the result by 2. This distance from either end is the midpoint of that line. Alternatively, add the two x coordinates of the endpoints and divide by 2. Do the same for the y coordinates.

Answer:

300lb, 250lb, 200lb

Step-by-step explanation:

156kg=343.9lb

Answer:

I hope this is what you're looking for. Good luck.

Step-by-step explanation:

Answer: 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

this is hard that I will say

Based on the information in the table given, the line plot to show the data is given in the attached picture.

This is a kind of graph that shows data on a number line. The data that is to be represented will be put as points above the numbers on the number line.

Numbers with more variables will have multiple points placed above them to show that they have more frequency.

Find out more on line plots at https://brainly.com/question/15207273.

Answer:

hope it helps

good afternoon

Answer:

10.20

Step-by-step explanation:

Given;

A DVD is marked down 15%; the regular price is $12.

To Find;

What is the sale price?

Note;

Mark Down = Decrease = Subtract

Solve;

$12 x 15% = 1.80

$12 - 1.80 = 10.20

~Learn with Lenvy~

Answer:

$10.20

Step-by-step explanation:

15% of 12 is 1.80 so subtract 1.80 from 12 and you get 10.20