If the value of a is negative in the quadratic function, f(x) = ax + bx + C, and the vertex is at (13, -2), then how many x-intercepts will the graph have?
A. can't be determined
В. 0
C. 1
D. 2

Answer: 5 nickels and 19 quarters

Step-by-step explanation:

Let represent the number of nickels and let represent the number of quarters.

From the problem we can write these two equations:

+ = 24; (0.05) + (0.25) = 5.00

Isolate in the first equation: = 24 − .

Substitute 24 − for and solve for :

(24 − )(0.05) + (0.25) = 5.00

24(0.05) − (0.05) + (0.25) = 5.00

1.20 − 0.05 + 0.25 = 5.00

1.20 + 0.20 = 5.00

0.20 = 3.80

= 19

Use = 19 to find :

+ = 24; + 19 = 24; = 5

Answer: 5 nickels, 19 quarters

Hope this helps!

Answer:

19 quarters and 5 nickles

Step-by-step explanation:

19 * .25 = 4.75     .05 * 5 = .25     4.75+.25= 5

Answer:

160

Step-by-step explanation:

Givens

Let the smaller angle = x

Let the larger angle = 8x

Equation

x + 8x = 180       Combine like terms

Solution

9x = 180             Divide by 9

9x/9 = 180/9

x = 20

Answer

The larger angle = 8 * 20 = 160    

Answer:

Five rational numbers between -5/3 and -8/7 are- Read more on Sarthaks.com - https://www.sarthaks.com/830151/find-five-rational-numbers-between-5-3and-8-7

Step-by-step explanation:

Answer:

C, after 1 year, it has 75 percent of its original value

Step-by-step explanation:

Answer:  -2/3

i hope this helps!

Answer:

Step-by-step explanation:

To measure slope, we pick any two points on the line. Then we look at the horizontal and vertical distances between those points.

Going from the point on the left to the point on the right, the change in y is -2 and and the change in x is 3.

[tex]\sf Slope=\cfrac{rise}{run} =\cfrac{-2}{3}[/tex]

[tex]\sf = -\cfrac{2}{3}[/tex]

The slope of the line is -2/3

___________________

Hope this helps!

Have a great day!

Answer: 52

15 + 4 (10 - 2 × 5) + 7

15 + 4×(10 - 10) + 7

15 + 0 + 7

= 22

...sorry i thought it was a decimal between 2 and 5

Answer:

22

Step-by-step explanation:

15+4(10-2×5)+7

15+4(10-10)+7

15+4×0+7

15+0+7

15+7

22

Answer:

eigth million thirty thousand seventy

Answer:

The probability of landing on 8 twice is 1/64

Step-by-step explanation:

If you spin the spinner once, there are 8 possibilities each time (1-8). The possibility of landing on the number 8 is 1 of these 8 possibilities. Its probability is therefore 1/8

Each spin is independent. In other words, the spins do not affect each other. The number you land on during the first spin does not impact the second spin's number. The probability of landing on 8 the second time is the same as the first time: 1/8

Because the two events are independent, we find the probability of them both occurring by multiplying them together.

1/8 times 1/8= 1/64

hope this helps:)

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Answer:

x<15

Step-by-step explanation:

Answer:

A) it wouldn't fit

Step-by-step explanation:

Answer:

its b i did that befroe and it was b

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

Answer:

SSS.

Step-by-step explanation:

The 3 sides are congruent . The  ones that are marked and the middle line which is common to both triangles.

Answer:

x=22

Step-by-step explanation:

The answer is x=22.

I had put the answer on comment sorry.

Answer:

O represents? Is it 0 or O?

Answer: Y-(-1)= 3/4(x-1)

Step-by-step explanation:

*First find the slope*

y2-y1/x2-x1 ==> 2-(-1)/5-1 ==> 3/4

Point-slope form ==> y-y1=m(x-x1)

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

Answer:

The are 30 crates in each truck

Step-by-step explanation:

8x=240

8x/8=240/8

x=30

Answer:

2(x − 2)

Step-by-step explanation:

The length of a rectangle can be rpresented by the expression x+6. If the area of the rectangle is 2x^2+8x-24, what is the expression for the width.

The formula for the area of a rectangle = Length × Width

Area of the rectangle = 2x² + 8x - 24

Length = x + 6

We can find the width of the rectangle be factoring the Area

Hence, factorising

2x² + 8x - 24

= 2(x − 2)( x + 6)

Therefore, the Width of the rectangle =2(x − 2)

Answer:

C

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

The equation is d=4t

The slope of this equation would be 4

Every new point on the graph is up 4, right 1

Answer: w=8/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

20 /3 =2(w+ ( 2 /3 )

20 /3 =(2)(w)+(2)( 2 /3 )(Distribute)

20 /3 =2w+ 4 /3

Step 2: Flip the equation.

2w+ 4 /3 = 20 /3

Subtract 4/3 from each side: 2w+ 4 /3 − 4 /3 = 20 /3 − 4 /3

Divide both sides by 2: 2w/ 2 =16  3 /2

Answer w=8/3

Answer:

w=8/3

Step-by-step explanation:

Answer:

18 dollars

Step-by-step explanation:

32÷16=2

9×2=18

Answer:

b.(4,6/7)

Step-by-step explanation:

i hope i was able to help with the question

Answer:

[tex]14x + 36 = 15[/tex]

Step-by-step explanation:

Multiply both sides by LCM which is 18.

[tex]18( \frac{7}{9} )x + 2 )= \frac{5}{6} \times 18[/tex]

[tex]14x + 36 = 15[/tex]

Step-by-step explanation:

Geometry is in maths

Geology is in geography..

I hope you understand..

Answer:

36

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Answer:

4 and 5

Step-by-step explanation:

The solution of the numbers 4 and 5 that gives multiplied by 20 and adds up to 9.

Used the concept of the equation that states,

An equation is a group of numerical variables and functions that have been combined using operations like addition, subtraction, multiplication, and division.

Given that,

The multiplication of two numbers is 20.

And, the addition of both numbers is 9.

Let us assume that the numbers are x and y.

Hence the equation for the given conditions,

[tex]x \times y = 20[/tex]  ... (i)

[tex]x + y = 9[/tex]   ... (ii)

From (ii);

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

Substitute in (i);

[tex](9 - y) \times y = 20[/tex]

[tex]9y - y^2 = 20[/tex]

[tex]y^2 - 9y + 20 = 0[/tex]

[tex]y^2 - (5 + 4)y + 20 = 0[/tex]

[tex]y^2 - 5y - 4y + 20 = 0[/tex]

[tex]y (y - 5) - 4 (y - 5) = 0[/tex]

[tex](y - 5) (y - 4) = 0\\[/tex]

This gives,

[tex]y = 5\\y = 4[/tex]

From (i);

Substitute y = 5;

[tex]x = 9 - 5\\x = 4[/tex]

Substitute y = 4;

[tex]x = 9 - 4\\x = 5[/tex]

Therefore, the numbers are 5 and 4.

To learn more about the equation visit:

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Answer:

x = 13

Explanation

Answer:

Answer: 91.25%

Step-by-step explanation:

Convert fraction (ratio) 36.5

Answer:

$14.6

Step-by-step explanation:

36.5% of 40 = 0.365 × 40 = 14.6