-x^2+2x-9=0 find the discriminant

Answer:

yup i know no nope

Step-by-step explanation:

Answer:

Josie: 100 + 5x

Allanah: 10 + 20x

As stated in my last response, x means the unknown variable of the amount of times they will repeat the process. Now, given that the unknown variable is 4, just plug it into the equation.

Josie: 100 + 5(4)

Allanah: 10 + 20(4)

Josie: $120

Allanah: $90

Josie clearly has more money (by then the end of 4 weeks)

Now, for the last question,

Josie: 100 + 5x

Allanah: 10 + 20x

If we set these equations equal to each other, x will equal 6

100 + 5x = 10 + 20x

This means after 6 weeks they will have the same amount of money.

Answer: The answer would be x = 19/3, 5/3

Step-by-step explanation:

Since we are finding the x intercepts, we must set the equation to equate 0. So:

0 = 3 |x-4| - 7

Then, we want to simplify the right side so it is just the absolute value, so lets start by adding 7 to both sides.

0 = 3 |x-4| - 7

+7              +7

7= 3 |x-4|

Now we divide both sides by 3.

7= 3 |x-4|

3        3

7/3 = |x-4|

Now, due to the properties of absolute value, we must solve this twice, since absolute value always leads to a positive value, we want to set up one equation where 7/3 is positive and one where it is negative.

7/3 = x-4        -7/3 = x-4

add 4 to both sides

7/3 = x-4        -7/3 = x-4

+4      +4          +4     +4

Then, you get your two x values

x= 6.333... or 19/3 AND x = 1.66666 or 5/3

Answer:

1000. Then 1000 divided by 324 = 3.08 cubic yards.

Step-by-step explanation:

Answer:

0.8585 cubic yards

Step-by-step explanation:

inches-->yeards 2/36 in

15.453*2/36 = 0.8585 (tried volume formula)

I figured if the derivative represented the area then x^2*x = x^3 so that would represent the volume of mulch needed.

[tex]52 \times 2 = 104[/tex]

The recipe told her to add 104 g of flour

//

Proof:

[tex]104 \times 0.50 = 52[/tex]

Answer:

10 teeth must go on the driven gear

Step-by-step explanation:

Let the number of teeth be x

In order for the new product to maintain the same ratio as the old the ratio must remain the same. This means that

17:5 = 34:x

[tex]\frac{17}{5} = \frac{34}{x}\\Now\ let\ us\ cross-multiply\\17 \times x = 5 \times 34\\17x = 170\\dividing\ both\ sides\ by\ 17 \\x = \frac{170}{17} \\x = 10[/tex]

∴ 10 teeth must go on the driven gear

hence ratio = 34:10

A geometric series that results in a sum of -69,905 include the following: B. ∑ -1/5(4)^k.

Also, the sum of a geometric series is given by this mathematical expression:

[tex]S=\frac{a_1(1-r^n)}{1-r}[/tex] or [tex]\sum^{n-1}_{k=0}a_1(q)^k[/tex]

Where:

When the common ratio r = 4, n = 10, and the first term (a₁) = -1/5, we have the following:

[tex]\sum^{10-1}_{k=10} \frac{-1}{5} (4)^{10} = -69,905[/tex]

In conclusion, a geometric series whose sum would result in a sum of -69,905 is given by the second expression.

Read more on common ratio here: brainly.com/question/28762774

#SPJ1

Step-by-step explanation:

step 1. The GCF is the highest factor that goes into both terms in the expression.

step 2. 24x and 60y have factors of 2, 2, 2, 3 ,x and 2, 2, 3, 5, y.

step 3. the common factors are 2, 2, 3.

step 4. the GCF is 2(2)(3) = 12.

Answer:

12

Step-by-step explanation:

THough it may look like you need variables at the end, you dont. Its just a number. So its just plain and simply, "12"

Answer: When graphing a linear inequality on a number line, use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to". Graph the solution set of: -3 < x < 4 The solution set for this problem will be all values that satisfy both -3 < x and x < 4.

Step-by-step explanation:

Answer:

3/4 x = 2/3

If we multiply both sides by 4/3 we will have

x = 2/3 × 4/3 = 8/9 hour

Answer:

-28

Step-by-step explanation:

all you do is plug in 7 to x

7*-4=-28

Answer:

Y=-28

Step-by-step explanation:

Substitute 7 for x

Y=-4(7)

Multiply 7 by 4

Make sure the answer is negative

Answer:

4 popcorn

8 chips

Step-by-step explanation:

4 popcorn= $12

8 chips= $18

12+18=30

Answer:

20, 21, 21, 18

Step-by-step explanation:

Answer:

We cannot answer this as there are no y-values given

Step-by-step explanation:

Answer:

(176, 193)

Step-by-step explanation:

Well you forgot to put in the choices, but:

The difference between the numbers is 17. Let's call the smaller number x and the bigger one y

(x + y) = 369

y = x + 17

(x + (x + 17)) = 369

2x + 17 = 369

2x = 352

x = 176

y = x + 17 = 193

Answer:

its a little hard sorry I dont know

Answer:

KFHDJKGHFGBO

Step-by-step explanation:

Answer:

f(X)=7 X=1

X=2. f(X)=14

f(X)=21. X= 3

X=4. f(X)=28

X=5. f(X)=35

just substitute in the equation

Answer:C

Step-by-step explanation:

[tex]175.50 \times 2 = 351.00[/tex]

He needs to pay $351.00 for 6 pairs of shoes.

Step-by-step explanation:

let's use ratio

3/ 175.5. as 6/X

cross multiply and solve for X

[tex] \frac{3 }{175.5} = \frac{6}{x} [/tex]

3X = 1053......divine both sides by 3 to solve for X

X = 351.

James would pay $351 for 6 pairs of shoes.

or you should have just multiply 175.5 by 2 because 6 pairs us the double of 3.

Answer:

Finite Math Examples. Popular Problems · Finite Math. Find the Distance Between Two Points (7,2) , (-1,4).

Step-by-step explanation:

Finite Math Examples. Popular Problems · Finite Math. Find the Distance Between Two Points (7,2) , (-1,4).

Answer:

The distance is Sqrt(130) or in decimal form, 11.01...

Step-by-step explanation:

The distance formula states that you need to do sqrt((a-x)^2+(b-y)^2)). In this scenario (x,y)(a,b)= (1,7)(-2,-4) So we just fill in that formula. (-2-1)=-3^2=9; (-4-7)=11^2=121; 121+9=130. The distance is therefore Sqrt(130) or in decimal form, 11.01...

Answer:

The slope is 25 and the y-intercept is 100

Step-by-step explanation:

With linear equations (y = mx + b), m is always the slope, which, in this case, is 25. It could also be written as [tex]\frac{25}{1}[/tex], although it's not necessary here

B is always the y-intercept, which is 100 here

Answer:

1 time

Step-by-step explanation:

8 x 1 = 8

8 x 2 = 16

Its bigger than 15.

Answer:

x=24

Step-by-step explanation:

The opposite angles are equal as per certain theorems.

3x-1=71

3x=72

x=24

Answer:

yea

Step-by-step explanation: