Mathematics High School

P(x)=5x^2-3x+7(x=1)
Pls

Answers

Answer 1

Answer:

9

Step-by-step explanation:

Given

p(x) = 5x² - 3x + 7 ← substitute x = 1

p(1) = 5(1)² - 3(1) + 7 = 5(1) - 3(1) + 7 = 5 - 3 + 7 = 9

Related Questions

given: -3x+20=8; prove: x=4

Answers

Answer:

4

Step-by-step explanation:

Step 1:

- 3x + 20 = 8     Equation

Step 2:

- 3x = 8 - 20    Subtract 20 on both sides

Step 3:

- 3x = - 12   Subtract

Step 4:

x = - 12 ÷ - 3    Divide

Answer:

x = 4

Hope This Helps :)

Answer:

x = 4

Step-by-step explanation:

Step 1: Write equation

-3x + 20 = 8

Step 2: Solve for x

Subtract 20 on both sides: -3x = -12Divide both sides by -3: x = 4

Step 3: Check

Plug in x to verify it's a solution.

-3(4) + 20 = 8

-12 + 20 = 8

8 = 8

write the segment addition posutlate for the poins described

Answers

Answer:

Segment Addition Postulate:  2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Step-by-step explanation:

Answer: Segment Addition Postulate: 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

hope this helped you kiddo.

Step-by-step explanation:

Evaluate the expression if a = -3, b = 64, c = 4, and d = 36.
4a? + 2c

Answers

Answer:

-4

Step-by-step explanation:

4(-3)+2(4)=-4

is -4.67 a rational number

Answers

Answer:

No

Step-by-step explanation:

A chair costs $155. What is the total cost with a 30% discount and 5.5% sales tax?

Answers

Answer:

$114.46

Step-by-step explanation:

Round 9.8846387057 to the nearest whole number.

Answers

Answer:

10

Step-by-step explanation:

Hey there! The answer is 10 because if it is 9.5 or higher you will round it up to the nearest number. In this case, you are rounding 9.88, so you round up to the nearest whole number, which is 10.

~I hope I helped you! :)~

Answer:

10

Step-by-step explanation:

Polynomials are not always closed under which operation?

A)Addition
B)Subtraction
C)Multiplication
D)Division

Answers

Answer:

D

Step-by-step explanation:

Polynomials are always closed with addition, subtraction, and multiplication. Division cannot be used to close a polynomial because when you divide two polynomials, its not going to come out as polynomial. All the other operations after completed will create another polynomial.

Best of Luck!

PLZ HELP ASAP FOR BRAINLIEST

Answers

slope: 2/3
y intercept : -2
slope intercept equation: y = 2/3x -2


i need help with this please help asap

Answers

Step-by-step explanation:

4^5 (-2)^9/4^8 (-2)^3

= 4^(5 - 8) (-2^(9 - 3))

= 4^-3 (-2^6)

= (-2)^6/4^3

1). (-2)^a/4^b

a = 6, b = 3

2). c/d

c = -2, d = 4

What is the y-intercept of the line graphed on the grid?

Answers

Answer:

it is -4 because it is where the line touches the graph

Answer:

Looks like it could be -3.5

Step-by-step explanation:

The y-intercept is the point where the line crosses the y-axis.

In a sale a clothes shop reduces its price by 35% a shirt usually costs $36 how much after the sale?

Answers

Answer:

$23.40

Step-by-step explanation:

[tex]36(1 - .35) = 23.40[/tex]

The answer is $23.40

HELP PLS ITS BEEEN AN HOUR im going to cry ):

Answers

Answer: Don't cry please you'll be okay.

Step-by-step explanation:

1. Find the quotient 8 divided by 1/5

Answers

Answer:

40

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

Ram’s father is 38 years old. His age is three more than five times the age
of Ram. What is Ram’s age?​

Answers

Answer:

7

Step-by-step explanation:

7 times 5 =35

35+3=38

correct answer is 7 years old

Answer:

Ram is 7

Step-by-step explanation:

38-3

=35 divided by 5

=7

help please!! thanks :)

Answers

Answer:

I think it's B not sure though.

do any of y’all know how to do number 7?

Answers

Answer:

f(-3) = 2

f(-1) = 2

f(8) = 1

Step-by-step explanation:

Yep! For any function f(x), you find the y value corresponding the x value. For example, in this question, it asks us to find f(-3). Therefore, you go to the line, x = -3, and see where it intersect the function (the y value). Your answer would be the y value.

The value corresponding to f(-3) seems to be 2.

The value corresponding to f(-1) seems to be -2.

The value corresponding to f(8) seems to be 1.

what is the answer ​

Answers

Answer: B

Step-by-step explanation: The y-intercept is in the right place which is 5 and it is going up left to right because the slope is positive, not negative which is why D is incorrect and B is correct.

Hope this helps! :)

−3 3/4×5/6−2 1/3
I need help

Answers

Answer:

- 131/24

Step-by-step explanation:

Answer:

−13.875

Step-by-step explanation:

solve for u pls thanks

Answers

Answer:

U= -7

I hope this helps!!

Answer: u=-7

Step-by-step explanation:

-18 = -4 + 2u

Add 4 to -18

-14=2u

Divide by 2

U=-7

plz help will give brainlest

Answers

Answer:

car a travels 250 miles car a travels 150 miles in 2 hours

Step-by-step explanation:

car a speed is 150 per hour and car b is  about 70 or 60 miles per hour

car a traveled 100 more miles than car b and the graph car b is 150 miles

Answer:

150 and 2

Step-by-step explanation:

Mirna earned $120 baby-sitting during the spring break. She needs to save $90 for the German Club trip. She wants to spend the remainder of the money shopping. Use s for the amount of money Mirna can spend. Enter your inequality in the most simplified form.

Answers

Answer:

$30

Step-by-step explanation:

s + 90 = 120

s = 120 - 90

s = 30

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

The most simplified inequality form of the amount of money s to spend on shopping is

s ≤ 30

Where s is the amount to spend.

What is inequality?

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

Mirna earned $120 babysitting during spring break.

She needs to save $90 for the German Club trip.

She wants to spend the remainder of the money shopping.

This means,

The remainder amount,

= 120 - 90

= $30

We can write an inequality as,

s ≤ 120 - 90

s ≤ 30

Where s is the amount of money to spend on shopping.

Thus,

The most simplified inequality form of the amount of money s to spend on shopping is

s ≤ 30

Learn more about inequalities here:

https://brainly.com/question/20383699

#SPJ5

Equivalent fraction with a denominator of 10, 100, or 1000 and a decimal with 1/2


​

Answers

Answer:

5/10

50/100

500/1000

Step-by-step explanation:

5/10 is equal to 1/2

50/100 is equal to 1/2

500/1000 is equal to 1/2

how do you find the domain and range of this graph?

Answers

Answer:

Domain: all real x values, Range: -4_<x_<infinity

Step-by-step explanation:

The Domain is the X values, and the range is the Y values

Pablo bought 5 CDs that were each the same price. Including sales tax, he paid a total of $74.50. Each CD had a tax of $0.80. What was the price of each CD before tax?

Answers

Answer:

Step-by-step explanation:

74.50=5x+5(.80)

74.5=5x+4

-4          -4

70.5=5x

5        5

$14.10=x

Find the value of X.
47°
22°
to

Answers

Answer is 111

Because 180-(47+22)= 111

The value of x for the given triangle will be 111°.

What is a triangle?

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

There are many types of triangles such that right-angle triangles, equilateral triangles, and much more.

The sum of all angles inside a triangle is 180°

So,

47° + x° + 22° = 180°

x = 180° - 69° = 111°

Hence "The value of x for the given triangle will be 111°".

For more about triangles,

https://brainly.com/question/2773823

#SPJ2

A company orders 9 boxed lunches from a deli for $96.75. If each boxed lunch costs the same amount, what is the unit cost of each boxed lunch?

Answers

Answer:

$10.75

Step-by-step explanation:

calculator

Answer:

10.75 for deltamath

is kurapika kurta hot

Answers

Answer:

really hot❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Answer:

YES yes YES!!!

Step-by-step explanation:

convert the rate of $480/day to the equialent rate in dollars/hour.

Answers

Answer:

It would be $20 per each hour

Step-by-step explanation:

Divide  480  by  24 .

Answer:

$20/ hour

Step-by-step explanation:

24 hours in a day

Divide $480/ 25

1. Which equation shows the proportional
relationship in the table?
Time (weeks) 2 5 10
Trees Planted 130 325 650
A y = 2x
B y = 65x
C y = 130x
D y = 2x + 130
please help.

Answers

Answer:

B. [tex] y = 65x [/tex]

Step-by-step explanation:

Equation showing a proportional relationship between two quantities, is usually written as [tex] y = kx [/tex]. Where,

y = output/dependent variable

x = input/independent variable

k = constant of proportionality that exists between each pair of values given.

In this case:

y = trees planted

x = time (weeks)

To find the constant of proportionality, k, use any given pair as (x, y). Let's use (10, 650).

Substitute y = 650 and x = 10 into [tex] y = kx [/tex], and solve for the value of k.

[tex] 650 = k(10) [/tex]

Divide both sides by 10

[tex] \frac{650}{10} = k [/tex]

[tex] 65 = k [/tex]

[tex] k = 65 [/tex]

Substitute k = 65 into [tex] y = kx [/tex] to generate the equation that shows the proportional relationship in the table:

[tex] y = 65x [/tex]

what is the solution to the system of equations? 3x-2y=19 y=x-7
A) (6,-1)
B) (33,26)
C) (1,-6)
D) (5,-2)

Answers

Step-by-step explanation:

3x - 2y = 19 ...1

Replace y = x-7 in ...1

3x - 2(x-7) = 19

3x - 2x + 14 = 19

x = 19 - 14

= 5

Replace x = 5 in y = x - 7

y = 5 - 7

= -2

(5,-2)

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