The book Kathy is reading is 540 pages long. So far, she has read 405 pages. What percent of the book does she have left to read?
A. 20%
B. 25%
C. 75%
D. 80%

Your answer should be

C. -2.625

Answer:

See below.

Step-by-step explanation:

[tex]h(x)=-1/2(x - 4)^2 + 3[/tex]

The domain is all real numbers.

The range is all real numbers [tex]\leq 3[/tex].

The domain of the function will be all real numbers and the range of the function will be (-∞, 3].

Let the point (h, k) be the vertex of the parabola and a be the leading coefficient. Then the equation of the parabola will be given as,

y = a(x - h)² + k

The domain means all the possible values of x and the range means all the possible values of y.

The equation of the parabola is given below.

h(x) = – 1/2(x – 4)² + 3

The vertex of the parabola is at (4, 3). The parabola is a downward parabola.

The domain of the function will be all real numbers and the range of the function will be (-∞, 3].

More about the equation of the parabola link is given below.

https://brainly.com/question/20333425

#SPJ5

Answer:

not really

Step-by-step explanation:

Answer:

Bars !!!!!!

Step-by-step explanation:

Answer:

67.2

Step-by-step explanation:

5 + 7 = 12

6 * 12 = 72

72 - 4.8 = 67.2

Answer:

The answer is 67.2

Step-by-step explanation:

6(5+7)−4.8

(6)(12)−4.8

72−4.8

67.2

Answer:

The answer is 5 hours

Step-by-step explanation:

First u add the part and service charge toghther which is 75 and then 225 minus 75 is 150 so u divide 150 and 30 and u get 5 which is your answer.

HOPE THIS HELPS

Answer:

no

Step-by-step explanation:

does anyone need help??? because i am willing to help someone right now

Answer:

OK WHAT IS 3/4 x1/2?

Step-by-step explanation:

Thanks

Answer:

x=-8

Step-by-step explanation:

Answer: see explanation

Step-by-step explanation: To determine which ordered pairs satisfy the equation substitute the x coordinate of the point into the right side and if the value obtained equals the y coordinate of the point then it satisfies the equation

(- 1, - 1)

x = - 1 : y = - 4 + 3 = - 1 ⇒ (- 1, - 1) satisfies the equation

(2, 11)

x = 2 : y = 8 + 3 = 11 ⇒ (2, 11) satisfies the equation

(4, 7)

x = 4 : y = 16 + 3 = 19 ≠ 7 ⇒ (4, 7) does not satisfy the equation

(7, 1)

x = 7 : y = 28 + 3 = 31 ≠ 1 ⇒ (7, 1) does not satisfy the equation

I think its -58 ? Because its lower, so you'd subtract. -31 - 27 = -58

Answer:

mn

Step-by-step explanation:

Answer:

36, 8.5

Step-by-step explanation:

an exponent of two means that you are multiply a number by itself

so in this case you would multiply 6 by itself: 6 x 6

this gets you 36

and 8.5 doesn't change so its just 8.5

Answer:

6p^2 + 5p - 6

Explanation

6p^2 - 4p + 9p - 6

6p^2 + (-4p + 9p) - 6

And then you would simplify your answer to that which would get you

6p^2 + 5p - 6

Given the graph, we can determine the slope, and use slope formula* to prove it.

Points: (-4, 1) and (-2, -1)

From the graph, the slope of the line is -1, mean the line goes down 1 unit and left 1 unit.

To prove this you can use slope formula*:

[tex]m = \frac{-1 - 1}{-2 + 4} = \frac{-2}{2} = -1[/tex]

*Slope formula: [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Answer:

The lesson activity requires students to use up to four fours and any operation to make the numbers from 0 to 100. For example, 4 + 4 + 4 + 4 = 16.

Initially, students will use the more familiar operations, +, −, ×, ÷, along with brackets to create their equations.  For example, (4 × 4 + 4) ÷ 4 = 5. Gradually, finding solutions for the remaining numbers in the list becomes more challenging. Here, it is a good opportunity to introduce some other operations to the students, including √4 = 2 and 4! = 24. In my experience, at least one student in the class will be familiar with the square root operation √n, which will make it easier to introduce. The other operation n!, known as factorial, will be less familiar to students.

n! is the product of all positive integers less than or equal to n; for example, 4! = 4 × 3 × 2 × 1 = 24, or 3! = 3 × 2 × 1 = 6

With the introduction of these two less familiar operations, the number of solutions that students can find to the initial problem increases.

Step-by-step explanation:

Answer:

AT=6, RC=5

Step-by-step explanation:

Perpendicular bisector intersect at T that is the circumcenter.

since RT is a bisector or AC and AR=5 then RC=5

Circumcenter is equidistant from the vercices of the triangle so

AT≅BT≅CT

but CT is given to be CT=6 so AT=6

Answer:

AT=6, RC=5

Step-by-step explanation:

Answer:

Undefined.

Step-by-step explanation:

m = y2-y1 / x2-x1

m = 3 - 2 / 1 - 1

m = 1/0, which is undefined.

You can also tell because (1,2) and (1,3) is a vertical line, which means the slope is undefined.

Answer:

14 12 10 8 6 4 2

Step-by-step explanation:

Here,

y=8-2x

if x=-3

y=8-2×-3=8+6=14

if x=-2

y=8-2×-2=8+4=12

if x=-1

y=8-2×-1=8+2=10

if x=0

y=8-2×0=8-0=8

If x=1

y=8-2×1=8-2=6

if x=2

y=8-2×2=8-4=4

If x=3

y=8-2×3=8-6=2

Answer: 20% increase

Step-by-step explanation:

30-25=5 solve for x  (5*100)/25 = 20

Answer:

x = 9.7

Step-by-step explanation:

2.7x -9 = x +7.5

2.7x - x = 7.5 + 9

1.7x = 16.5

x = 16.5/1.7

x = 9.7

Answer:

x = 9.70588

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

2.7x - 9 = x + 7.5

Step 2: Solve for x

Step 3: Check

Substitute in x into the original equation to verify it's a solution.

Here we see that 17.2059 does indeed equal 17.2059.

∴ x = 9.70588 is a solution of the equation.

Answer:

Step-by-step explanation:

sndk

Answer:

the area of one cookie slice is 7

Ste p-by-step explanation:

Answer:

571

Step-by-step explanation:

Answer:

ngl i learned this type of math pretty sure, and that looks better than my teachers own notes-

Step-by-step explanation:

ima go poof again cuz if i don't ima lose my game ;-;

Answer: I’m to dumb for that

Step-by-step explanation:

My brain is broken just looking at that math

Answer:

they are neither. if they were parallel they would be the same. if they were perpendicular they would be opposite reciprocal. So it is neither

Answer:

The correct answer would be negative 1 over 6 also written as -1/6

Step-by-step explanation:

HAVE A GOOD DAY!

Answer:

[tex]-\frac{1}{6}[/tex]

Step-by-step explanation:

In order to find the answer to this question you must use order of operations and add after finding the common denominator.

[tex]-\frac{1}{2} +(\frac{3}{4} \times\frac{4}{9} )[/tex]

P goes first

[tex]\frac{3}{4} \times\frac{4}{9}[/tex]

Solve:

[tex]3\times4=12[/tex]

[tex]4\times9=36[/tex]

[tex]=\frac{12}{36}[/tex]

Reduce:

[tex]12\div6=2[/tex]

[tex]36\div6=6[/tex]

[tex]2\div2=1[/tex]

[tex]6\div2=3[/tex]

[tex]=\frac{1}{3}[/tex]

[tex]-\frac{1}{2} +\frac{1}{3}=\frac{-1\times3}{2\times3} +\frac{1\times2}{3\times2} =-\frac{1}{6}[/tex]

[tex]=-\frac{1}{6}[/tex]

Hope this helps.

Answer:

Step-by-step explanation:

You must first know that 1 week = 7days

If Sophie practices the piano 105 minutes in 1 week, this can be expressed as;

105 minutes = 7days

to calculate the total time t that she practices for any number of days, d, we will say;

t minutes = d days.

Solving both expression;

105 minutes = 7days

t minutes = d days.

Cross multiply;

7 * t = 105 * d

7t = 105d

Divide both sides by 7;

7t/7 = 105d/7

t = 15d

Hence a proportional equation for t in terms of d that matches the context is expressed as t = 15d