I don’t know how to do these problems Pls help me

Answer:

i don't know

Step-by-step explanation:

maybe x=something happend

1/x

Step-by-step explanation:

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

2 −  − 12 = 0

= 1

= -1

= − 12

= −( −1) ± √ ( −1)2 − 4⋅1 ( −12)

                       2.1

Answer:

x=-1, y=1

Step-by-step explanation:

Answer:

( -1, 1 )

Step-by-step explanation:

To solve, graph the equations and find the point of intersection.

when graphed these equations intersect at (-1, 1)

To double-check and make sure it's correct, plug in a solve.

x = -1

y = 1

y = 2(-1) + 3

1 = 2(-1) + 3

1 = -2 + 3

1 = 1

y = x + 2

1 = (-1) + 2

1 = 1

Answer:

Match each wave characteristic to its description.

frequency

wavelength

amplitude

the number of cycles of a wave per second

arrowRight

the distance between adjacent crests or troughs

arrowRight

the height of a wave from its equilibrium position

arrowRight

help

Step-by-step explanation:

Answer:

zyxttfhtyhrgdkouk.

Step-by-step explanation:

Step-by-step explanation:

You should pick the coin that is cheap but one that also has a high inflation value. You should graph out the rate of increase per year to see if the coins are worthy of investing upon

Answer:

86 would be the answer

Step-by-step explanation:

you add all the numbers then subtract by the number of number

Answer: 86 minutes

Step-by-step explanation:

To find the mean of something, you always add up the values and then divide by the amount.

So, in total there are 430 minutes because (170+150+45+30+35=430)

There are five different towns.

430/5=86

Answer:

The area is multiplied by 4

Step-by-step explanation:

The area of a circle is directly proportional to its square radius so if the radius is increased by x, the area will be increased by x ^ 2

Answer:

The area is multiplied by 4.

Step-by-step explanation:

Lets do

[tex]\\ \tt\longmapsto 2x^2+3x+5=0[/tex]

a=2

b=3

c=5

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

[tex]\\ \tt\longmapsto x=\dfrac{-3\pm \sqrt{3^2-4(2)(5)}}{2(2)}[/tex]

[tex]\\ \tt\longmapsto x=\dfrac{-3\pm \sqrt{9-40}}{4}[/tex]

[tex]\\ \tt\longmapsto x=\dfrac{-3\pm\sqrt{-31}}{4}[/tex]

[tex]\\ \tt\longmapsto x=\dfrac{-3\pm \sqrt{31}i}{4}[/tex]

[tex]\\ \tt\longmapsto x=\dfrac{-3}{4}\pm\dfrac{\sqrt{31}}{4}i[/tex]

its -2

because the object increased in size but nothing else changed the slope stays the same the slope is the same as the original shape

Answer:

1)  6(3x-2)

2) 24(x+2)

3) 9(5x−9) or 9(5x+9) if you meant to put addition.

4)8x+15

Answer: x2 + 12x

Step-by-step explanation:

Answer:

The equation is not true at x = -7.

Step-by-step explanation:

At x = -7 we'd have division by zero, which is not defined (not allowed).  

Answer:

7b(4b+4c)-3c(4b+4c)

28b²+28bc-12bc-13c²

hope this helps

sorry dunno the other

Answer:

-7y+3=-25

Step-by-step explanation:

collect like terms together

-7y=-25-3

-7y=-28

cancel the negative

7y=28

simplify

y=4

Answer:

C?

Step-by-step explanation:

A) Jared makes x of a goodie bag per hour. How many

can he make in y of an hour?

B) Jared makes x of a goodie bag per hour. How many

can he make in y of an hour?

C) Jared has x of an hour left to finish making goodie  bags. It takes him y of an hour to make each goodie  bag. How many goodie bags can he make?

D) id k

Quotient is the answer to a division problem, so we need to find a problem that needs to divide x and y to find the answer. It isn't A or B, since they are asking for y, not the quotient. I have no idea what D is. C makes sense, so C might be the answer.

It tells us how much time he has(x), and how long it takes him to make 1 bag(y), and we need to find the answer, which is the quotient.

So C is the answer.

---

hope it helps

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

A. My social security plus what I have put in a regular savings account will do

The correct option is A good guideline is 80% of your working income.

The 'rule of thumb' definition is considered to be a general principle that provides guidance for accomplishing or approaching a certain task or reaching a certain goal.

Given that, how much money we should need for retirement,

The rule of thumb assumes a retiree will need about 80% of their annual pre-retirement income (annual salary) to maintain a similar standard of living after retirement.

Hence, The correct option is A good guideline is 80% of your working income.

For more references on rule of thumb, click;

https://brainly.com/question/607952

#SPJ2

Answer:

19

Step-by-step explanation:

10

+ 9

------

19

Answer:

19

Step-by-step explanation:

Answer:

40 shots total.

Step-by-step explanation:

First, change the percentage to a decimal:

80% = 80/100 = 0.80

Next, divide the amount of baskets made (32) with the decimal gotten to get the  total amount of shots:

32/0.80 = 40

Brandon took a total of 40 shots.

Check. Divide 32 (shots made) with the 40 (total shots in all):

32/40 = 0.8 = 80%.

~

Answer:

A pizza shop offers 3 different toppings and 2 types of crust. How many possible types of pizza can you order if each pizza can have one, two, or three different toppings?

Step-by-step explanation:

Answer:

There are 2 outcomes they could've each chosen c or d or one chose c one chose d or the opposite way around

Step-by-step explanation:

Answer:

x=18

Step-by-step explanation:

y=3x-4

3x-4=y

3x-4=50

3x=50+4

3x=54

x=54÷3

x=18

Answer:

A, C

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

the ∠A is adjacent (adj) to  AB and opposite (Opp) of BC and AB is the hypotenuse (Hyp) of the triangle

which one of the above trig functions fits that?

sin(Ф) = BC / AC   is sin(Ф)= Opp / Hyp , so choice A) works

cos(Ф) = BC / AC  is not cos(Ф) = Opp / Hyp  so choice B) does not work

cos(Ф) = BA / AC  is cos(Ф) = Adj / Hyp  so choice C)  works

AC / BC is just a ratio   it's not the angle , so D) doesn't work

Answer: 1. 26

              2. 12.5

              3. 20%

Step-by-step explanation:

Answer:

(3,2)

Step-by-step explanation:

5x+2y= 19

4x - 3y = 6

I will use elimination

Multiply the first equation by 4

20x +8y = 76

Multiply the second equation by -5

-20x +15y = -30

Add them together to eliminate x

20x +8y = 76

-20x +15y = -30

---------------------------

       23y = 46

Divide by 23

23y/23 = 46/23

y =2

Now find x

5x+2y =19

Substitute y=2

5x+2(2) =19

5x+4 = 19

Subtract 4 from each side

5x +4-4 =19-4

5x= 15

Divide by 5

5x/5 = 15/5

x=3

The solution is

(3,2)

Answer:

11 1/5

Step-by-step explanation:

3 1/2 + 2 57/60 + 4 3/4 =

3 30/60 + 2 57/60 + 4 45/60 =

9 132/60 = 1

1 12/60 =

11 1/5

If my answer is incorrect, pls correct me!

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

-Chetan K

Answer:

11 1/5

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Answer:

m2+2m-8=0 Two solutions were found : m = 2 m = -4 Step by step solution : Step 1 :Trying to factor by splitting the middle term 1.1 Factoring m2+2m-8 The first term is, m2 its ...

Step-by-step explanation:

The key features needed are the slopes and y-intercepts. If the slope and the y-intercept are the same then there are infinite amounts of intersections. If the slope is the same and the y-intercept is different then they will never intercept. Of the slope and the y-intercept are different, then they will intersect at one point.

Answer:

|GH| = 5,7 cm

Step-by-step explanation:

To know |GH|, you first need to find the length of |GD|.

We can calculate |GD| by;

cosG = |GC| / |GD|

<=> |GD| = |GC| / cosG

 => |GD| = 3,9 cm/ 0,62 = 6,33 cm

We now can easily calculate |GH| with the sinus of angle D;

sinD = |GH| / |GD|

<=> |GH| = sinD.|GD|

 => |GH| = 0,899.6,33 cm = 5,694 cm => 5,7 cm

I hope i did not make a mistake ...

Answer:

0

Step-by-step explanation:

Its prob 0 just because it does not show one, meaning that there is an invisible 0 in the y-intercept spot