PLEASE HELP
Evaluate the function f(x) = (2x)2 - 1 when x = 2 and when x = -1

Answers

Answer 1

Answer:

F(x)=1

Step-by-step explanation:

F(2)=(2x-1=-2)2-1= 1= -1


Related Questions

is there a relationship between the areas of squares drawn on the sides of a triangle

Answers

Answer:

no there isn't this is irrelevant

$299 tv with 15% discount

Answers

The answer is 254. You want 299 with 15% off

Answer:

254.15 dollars you would have to pay.

A triangle formed by the sides 3.8cm ,3.7 cm, and 5cm is​

Answers

It is a scalene triangle because none of the sides are the same!

By the Pythagoras theorem we know that the if the square of the longest side of the triangle is equal to the sum of the square of other two sides.

The triangle formed by the sides 3.8 cm ,3.7 cm, and 5 cm is​ acute angle triangle.

How to find the type of triangle?

By the Pythagoras theorem we know that the if the square of the longest side of the triangle is equal to the sum of the square of other two sides. Thus,

For a triangle to be right angle triangle,

           [tex]c^2=a^2+b^2[/tex]

       By this law it is observed that,

For a triangle to be acute angle triangle,

         [tex]c^2<(a^2+b^2)[/tex]

For a triangle to be obtuse angle triangle,        

        [tex]c^2>(a^2+b^2)[/tex]

The sides of the given triangle are  3.8 cm ,3.7 cm, and 5 cm.

Here the longest side is 5 cm. Thus check the type of triangle using above formula. Longest side,

[tex]c^2=5^2\\c^2=25[/tex]

Other two sides,

[tex]a^2+b^2=3.8^2+3.7^2\\a^2+b^2=14.44+13.69\\a^2+b^2=28.13[/tex]

Therefore,

[tex]25<28.13\\[/tex]

Hence the triangle formed by the sides 3.8 cm ,3.7 cm, and 5 cm is​ acute angle triangle.

Learn more about the type of triangle here;

https://brainly.com/question/2644832

Regular price. discount
Socks: $4. 10%
what will the discounted price of the socks be?? PLEASE HELP ASAP!!!! WILL MARK BRAINLIEST!!

Answers

Answer:

3.6

Step-by-step explanation:

1.0-0.1=0.9

0.9*4=3.6  <--10% is taken off

Answer:

$3.60

Step-by-step explanation:

Feel free to give brainliest

Have an amazing day!

can someone help me please?

Answers

Answer:

(0,4) and (-4,0)

Step-by-step explanation:

ba. Finish the statement: If two lines are parallel, then their slopes are?

Answers

Answer:

If two lines are parallel, then their slopes are equal.

Solve the following equation for F. Be sure to take into account whether a letter is capitalized or not.

Answers

Answer:

F=M*H

Step-by-step explanation:

Answer: F = M(H)

Steps:


Eliminate the fraction and isolate the F by multiplying both sides by H

A set of stickers contains 4 hearts for every 6 stars. Which choice contains an equivalent ratio of hearts to stars? A. 6 hearts to 9 stars B. 8 hearts to 10 stars C. 1 heart to 3 stars D. 2 hearts to 4 stars

Answers

Answer:

6 hearts to 9 stars

Step-by-step explanation:

If a set of stickers contains 4 hearts for every 6 stars, this means that

4 hearts = 6stars

1 heart = x

Cross multiply

4x = 1*6

4x = 6

x = 6/4

x = 3/2

Number of hearts = 3/2 * 4 = 3*2 = 6

Number of stars = 3/2 * 6 = 3 * 3 = 9

Hence equivalent ratio of hearts to stars is 6 hearts to 9 stars

Answer:

6 to 9

Step-by-step explanation:

Which expression is equivalent to 7 (2x - 5)

Answers

Answer:

14x-35

Step-by-step explanation:

Use distributive property so,

you multiply 2x and -5 by 7

2x*7=14x

-5*7=-35

Answer:

B

Step-by-step explanation:

because it just is

2. If m 26 = 128°, calculate m25, m_1, and m23.
+
5 6
113
42
7 8

Answers

Answer:

m∠5= 52°

m∠1= 128°

m∠3= 52°

Step-by-step explanation:

Please see the attached picture for the full solution.

Alternatively,

m∠3= m∠5 (vert. opp. ∠s)

m∠3= 52°

Ok the question is on here now... The first person who answers it correct gets brainliest...

Answers

2 is a prime number and a integer

24 is a whole number and an integer

1 is an integer and a whole number

0 is a rational, whole, integer and real number

and seven is a whole and integer

brainliest for the correct answer given

Answers

Answer:

C

Step-by-step explanation:

C. Both a function and a relation

I think its c

Step-by-step explanation:

at no point are there 2 points in the same line so its a function,

Help me!will give brainliest: how do I graph it

Answers

Answer:

Step-by-step explanation:

follow that

Answer:

start at 7 on the y axis the then go down two

Step-by-step explanation:

next 5 points in your graph:

(5,1)

(3,2)

(1,3)

(-1,4)

(-3,5)

brainliest would be appriciated

what are three types of transformations of linear functions?
PLEASE HELP

Answers

the three are translation, reflection, compression or stretch

Answer:

Translation, refelction, stretch/compression. :D

Step-by-step explanation:

The ratio of apples to oranges is 2 to 3. If there are a total of 25 pieces of fruit, how many of each type of fruit are there

Answers

10 apples 15 oranges

10 points!! Will mark brainliest!!! Please help me I don’t understand this very well

Answers

Answer:

9?

Step-by-step explanation:

Hope that kinda helps.

what is the steps for this (-11)(-9)(-14) ​

Answers

Answer:

Here's ur ans buddy...PLZ mark it as brainliest ✌️✌️✌️

Step-by-step explanation:

[tex]( - 11)( - 9)( - 14) \\ ( - 20)( - 14) \\ ( - 34)[/tex]

what is the simplified form of 4x - 7 + x - 10

Answers

5x-17 is the ans of this question

Answer:

Subtract the numbers

4x-7+x-10

4x-17+x

answer: 5x-17

Step-by-step explanation:

What rule would you use to translate a triangle 4 units to the right?

Answers

Answer:

here is what i found also you could of looked it up

Step-by-step explanation:

(x,y)→(x+4,y)

What is the value of n?
3.4 x 107 = (2x 104)(1.7 x 10")
The value of n is

Answers

Answer:

n=3

Step-by-step explanation:

3.4(107)=2(104)(1.7(10n))

n=3

Which statement below is true about the
measurement 308.40 lb ?
A) It is precise to the nearest 0.01 lb and
accurate to 5 significant digits.
B) It is precise to 5 significant digits and
accurate to the nearest 0.01 lb.
C) It is precise to the nearest 0.1 lb and
accurate to 4 significant digits.
D) It is precise to 4 significant digits and accurate to the nearest 0.1 lb.
E) None of the above.

Answers

Answer:

the correct answer is d

Which expression represents 8 less than 3 times a number?

3n-8
8-3n
3-8n
3-8

Answers

Answer:

I'm pretty sure its b but I'm not sure I'm sorry if it's wrong

The answer is  A.) 3n - 8

The rate (in meters per second) that an object travels is the quotient of the distance (in meters) it travels and the time (in seconds) it takes to travel that distance. A particle traveled the distance of 3x^2-12 meters for ( x + 2 )seconds. Write the rate of the particle as a rational algebraic expression in simplest form.

Answers

Step-by-step explanation:

Rate

= Distance / Time

= (3x² - 12)m / (x + 2)s

= 3(x + 2)(x - 2)m / (x + 2)s

= 3(x - 2) m/s.

Write a quadratic equation in standard form that has two solutions, -7 and -8

Answers

The standard form is ax² + bx + c = 0. We could write:

(x + 7 )(x + 8)

x²+8x+7x+56

x² + 15x + 56  → Answer

There are 4 red balls, 6 white balls, and 3 green balls in a bag. If one ballis drawn from the bag at random, what is the probability that it is not white?

Answers

Answer:

D

Step-by-step explanation:

There are 13 balls in all.

6 are white

7 are the rest

7/13

Pls help, Will give brainliest

Answers

The answer is A.125 because I did this before

PLEASEEE ANSWERR
Which steps show how to use the distributive property to evaluate 7 · 88?
A. 7(88)=7(90 - 2) = 7.90-2 +630 – 2 = 628
B. 7(88)= 7(90 - 2) = 7.90-7.2 = 630 – 14 = 616
C. 7(88)=7(90 - 2) = 7.90 +7.2 = 630 + 14 = 644
D.7(88)=7(90 - 2)=7.90 - 90.2 = 630 – 180 = 450

Answers

Answer:

b

Step-by-step explanation:

B because no other make sense

find an equation for line L

Answers

Answer:  y = 4

Explanation:

Line L is the horizontal line. Any point on this line has y coordinate y = 4, so the equation is simply y = 4.

You could say the equation is y = 0x+4, which shows the slope is 0. But I think y = 4 is the better answer.

HELP GIVING AWAY 55 POINTS!!!!
Pete wants to mix 4 quarts of 20% orange juice concentrate with some 60% pineapple juice concentrate to get a 50% punch concentrate for a party. How much of the 60% pineapple juice concentrate should be used? please answer ASAP and explain thought process

Answers

Answer:

12 quarts

Step-by-step explanation:

Let the amount of pineapple juice be x quarts, the concentration of juice is as following equation:

4*0.2 + x*0.6 = (4 + x)*0.50.8 + 0.6x = 2 + 0.5x0.6x - 0.5x = 2 - 0.80.1x = 1.2x = 12

Ellie took a taxi from her house to the airport. The taxi company charged a pick-up fee of $1.50 plus $5 per mile. The total fare was $76,50, not including the tip. Write and solve an equation which can be used to determine m, the number of miles in the taxi ride.


I dont understand this​

Answers

Answer:   1.50+5m=76.50 m=15

Step-by-step explanation:

The required equation is 1.5 + 5m = 76.50 and distance travelled is 15 miles.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now it is given that,

pick-up fee = $1.50 plus $5 per mile

Since, m is the number of miles in the taxi ride

So, equation for pick-up fee for m miles,

pick-up fee = $1.50 + $5m

Now total fare = $76,50

Thus, required equation to determine m is given as,

1.50 + 5m = 76.50

Subtracting 1.5 both the side we get,

1.50 + 5m - 1.5 = 76.50 - 1.5

⇒ 5m = 75

or, m = 75/5

⇒ m = 15

Thus, the required equation is 1.5 + 5m = 76.50 and distance travelled is 15 miles.

To learn more about equation :

https://brainly.com/question/25271125

#SPJ2

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