0.25(4x - 4) = 2x + 1

Answers

Answer 1

Answer:

x=-2

Step-by-step explanation:


Related Questions

The number of carbon atoms in a fossil is given by the function [tex]y = 5100(0.95)^{x}[/tex], where x represents the number of years since being discovered. What is the percent of change per year? Explain how you arrived at your answer.

Answers

Answer:

[tex]\%x=5\%[/tex]

Step-by-step explanation:

From the question we are told that:

Carbon atoms in fossil function

[tex]y=5100(0.95)^x[/tex]

 

Generally the equation a 2 year change is mathematically given by

For[tex]x=1[/tex]

[tex]y_1=5100(0.95)^1\\y_1=4845[/tex]

For [tex]x=2[/tex]

[tex]y_2=5100(0.95)^2\\y_2=4602.75[/tex]

Generally the equation percentage year changes [tex]\%x[/tex] is mathematically given by

[tex]\%x=\frac{y_1-y_2}{y_1} *100[/tex]

[tex]\%x=\frac{4845-4602.75}{4845} *100[/tex]

[tex]\%x=5\%[/tex]

Therefore  the percent of change per year is

[tex]\%x=5\%[/tex]

PLEASE GIVE RIGHT ANSWER Triangle EFG has coordinates E (0, 0), F (0, 2), and G (3, 0). If ΔEFG ≅ ΔXYZ, what is the measure of XY? 1.5 units 2 units 3 units 3.5 units

Answers

Answer:

2 units

Step-by-step explanation:

Congruent triangles are those triangles, which have same shape & size (same side & angle size).

If  ΔEFG ≅ ΔXYZ. And, E (0, 0), F (0, 2), and G (3, 0)

So, length EF = length XY.

Length of E (0,0) & F (0,2) is 2 units

As triangles are congruent, EF = XY

Hence, measure of XY = 2 units

Answer:

2 units

Step-by-step explanation:

What is the mode of the following numbers?
3,7, 5, 2, 5, 5, 2,5

Answers

The mode is 5.ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Answer:

The mode is 5, hope this helps!

please can someone help my assignment in math​

Answers

Answer/Step-by-step explanation:

1. B = 180 - (90 + 58) (sum of triangles)

B = 32°

Let's find a and b using trigonometric ratios:

Reference angle = 58°

Opposite = a = ?

Hypotenuse = c = 27

Adjacent = b = ?

✔️To find a, apply SOH:

Sin 58 = Opp/Hyp

Sin 58 = a/27

a = 27*Sin 58

a = 22.8972986 ≈ 22.9 (nearest tenth)

✔️To find b, apply CAH:

Cos 58 = Adj/Hyp

Cos 58 = b/27

b = 27*Cos58

b = 14.3 (nearest tenth)

2. B = 180 - (90 + 63) (sum of triangles)

B = 27°

Let's find a and b using trigonometric ratios:

Reference angle = 63°

Opposite = a = 11

Hypotenuse = c = ?

Adjacent = b = ?

✔️To find b, apply TOA:

Tan 63 = Opp/Adj

Tan 63 = 11/b

b = 11/Tan 63

b = 5.6 (nearest tenth)

✔️To find c, apply SOH:

Sin 63 = Opp/Hyp

Sin 63 = 11/c

c = 11/Sin 63

c = 12.3 (nearest tenth)

1 pts The function f(x) = 12,900(0.40)x models the population of ants in a house x days after their discovery. Which statement describes the population of ants?

Answers

Answer:

f(x) = 500 • 1.1x

Step-by-step explanation:

To solve the question, we need to understand that:

- The population of ants is going to increase with time as they mate and have a population positive growth rate.

- The initial number of ants is 500.

- The rate at which it increases will be multiplied with x months

We will work our way out by removing the wrong answers first

Since,

The population cannot be decreased so we can neglect the last two options involving 0.9 as it will result in a decrease in the population.

Now we are left with two options:

a)  f(x) = 500 • 1.1x

b) f(x) = 1.1 • 500x

Since in the option (b) , 500 is multiplied with x , it is not possible as 500 is a constant initial amount and not a factor of growth of population. The growth factor is supposed to be multiple of x months.

So, the correct answer is f(x) = 500 • 1.1x

100 POINTS! :)
Please answer the question correctly WITH WORK...otherwise I will report! :)

Joshua has a ladder that is 12.8 ft long. He wants to lean the ladder against a verticle wall so that the top of the ladder is 11 ft above ground. For safety reasons, he wants the angle of the ladder no greater than 75 degrees. Will the ladder be safe at this height? Show your work.

Answers

Answer: So we'll use trig to solve this because it's a right triangle. The hypotenuse is the ladder (h) and the two smaller sides are the ground and the vertical wall (w).

That angle ladder makes with the ground = €

SOH: sin € = opposite/hypotenuse

No the ladder won't be safe!!!

Now let's make it safe:

The ladder's length (w) is constant, so stays 12

So now let's ask in an inequality what height will be safe (75° or less)

what does that mean?? well as long as you put the ladder against the wall so that the height from ground to top of the ladder is < 11.6 ft!!

Hope that helps! :-D

Step-by-step explanation:

chelsey needs 18 3/4 grams of chemical x for a science project she found 5 1/2 grams in one container and 11 1/4 grams in another container how much more does she need​

Answers

Answer: C=2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

5 1/2 + 11 1/4 = 16 3/4

18 3/4 - 16 3/4 = 2

what is the ratio of the size of the two amoeba​

Answers

Answer:

between 200 750 is the answer

For every vote Bryan got for class president, Will got three votes. What is an equivalent ratio to the situation described?

Answers

Answer:

An equivalent ratio would be 1:3 because when Bryan gets one vote, Will gets 3.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

the circumference of a circle is 62 TT cm. the area of the circle is ___ TT cm^2.​

Answers

Answer:

961 TT cm^2

Step-by-step explanation:

c=TTD note that d is diameter which is 62 thus radius is half 31a=TTr^2. TT31^2Answer is 961 TT cm^2

Divide (x^3 - 4x^2 - 2x -5) by (x-5)

Answers

Answer:

Quotient = x² + x + 3

Reminder = 10

Step-by-step explanation:

We need to divide , x³ - 4x² - 2x - 5 by x - 5

x - 5) x³ - 4x² - 2x - 5 ( x² + x + 3

- x³ -(+)5 x²

_______________

0 + x² - 2x - 5

x² -5x

__________________

0 +3x - 5

+3x -15

__________________

+10

1/8 of a cup of cinnamon was sprinkle evenly over some pieces of toast. if 1/32 of a cup was sprinkled on each piece, how many pieces were sprinklered?

A) 4

B) 6

C) 7

D) 8

Answers

C because C is the right answer

Answer:

the answer is 4

Step-by-step explanation:

i took the test =p

Tai has a bag of different-colored balloons. Without looking in the bag, she selects a balloon, records its color, and puts it back in the bag. All balloons are equally likely to be chosen. She performs 50 trials.

Number of times a red balloon was chosen 15

Number of times a yellow balloon was chosen18

Number of times a green balloon was chosen9

Number of times a pink balloon was chosen8

Based on the data Tai collected, what is the estimated probability, in simplest form, of choosing a yellow balloon from the bag?

A. 9/50

B. 18/100

C. 9/25

D. 50/18​

Answers

Answer:

9/25

Step-by-step explanation:

Please help!!!!!!!!!!!!!!!!

Answers

Answer: Shows us the pictures of the subsets.

Step-by-step explanation:

Please help

What is the equation of the given line?

Answers

Answer:

y = 1

Step-by-step explanation:

Since the line is horizontal, that means there's no slope (y = b)

Since the line hits the y-axis of 1, the answer is y = 1

PLEASE HELP 3. what is the source of the line that contains the coordinate points (8, -3) and (-2, 7)

Answers

9514 1404 393

Answer:

  -1

Step-by-step explanation:

The slope of a line between two points is given by the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (7 -(-3))/(-2 -8) = 10/-10

  m = -1

The slope of the line is -1.

I’ll give Brainliest answer for the right answer

Answers

Answer:

You may report me if you wish as long as you know i cared enough to write this for you

Step-by-step explanation:

I know i may be unwanted here but I just want you to know that you are incredible and that I love you for you! You are special to everyone you meet, and should not change who you are. I know your life may be tough, but you are strong and can get through it!

The price of 1 kg of silver on 1st January 2010 was $607
By 1st January 2015, the price of 1 kg of silver had decreased by 9.4%
Work out the price of 1 kg of silver on 1st January 2015.
Give your answer correct to the nearest dollar ​

Answers

Answer:

550

Step-by-step explanation:

9.4/100 multiplied by 607 is 57

subtract this from 607 and the answer is 549.9, to the nearest dollar is 550

Please someone help please

Answers

Answer:

subtract

Step-by-step explanation:

Answer:

Its just to subtract and thats all.

Martha has two pet poodles. Fifi, her standard poodle, weighs 7 times as much as Buttercup, her toy poodle.

Pick the diagram that models the ratio in the story.

If Fifi weighs 56 pounds, how much does Buttercup weigh?

pounds

Answers

The diagram that models the ratio in the story is diagram A.

When fifi weighs 56 pounds, Buttercup will weigh 8 pounds.

What is a ratio?

It should be noted that ratio demonstrates how many times one number can fit into another number. It contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data points.

Let buttercup be x

Let Fifi be 7x

Fifi weighs 56 pounds. This will be:

7x = 56

7x = 56

Divide

x = 56 / 7

x = 8

Buttercup is 8 pounds.

Learn more about ratio on:

brainly.com/question/2328454

#SPJ1

HELP I NEED HELP ASAP
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Answers

Answer:

C

Step-by-step explanation:

if x degree and 115 degree are co exterior angles find the vaule of x degree

Answers

Answer:

65 degrees

Step-by-step explanation:

An exterior angle form a linear pair with an interior angle.

A linear pair of angles must add up to 180 degrees

180-115 = 65

what is the answer for 3.4x - 2y when x=1 and y=-2

Answers

Answer:

Step-by-step explanation:

3.4x - 2y

Putting values of x and y in the equation

3.4(1) - 2(-2)

= 3.4 + 4

= 7.4

The answer is 7.4

Explanation
3.4(1) -2(-2) =?
3.4 + 4 = 7.4

Complete the equations below. please please

Answers

Answer:

364 hundredths÷7

Step-by-step explanation:

3.64=364/100= 365 hundredths

0.07428571428571. You have to divide the first numbers then put a zero on the end and then divide by 7

The price of an item has been reduced by 60%. The original price was $45. What is the price of the item now?​

Answers

Answer:

$27

Step-by-step explanation:

WILL MARK BRAINLIEST PLS HELP

Answers

A it’ll take 3 cans to cover 60 aquare feet

7b^2-63b+140 Factor the polynomial (show your work)

Answers

Answer:

7 (b - 5) (b- 4)

Help please.

Tony and Edwin each built a rectangular garden. Tony’s garden is half as long and 6 times as wide as Edwin’s garden. If the area of Edwin’s garden is 400 square feet, what is the area of Tony’s garden?

Answers

Answer:

1200 ft²

Step-by-step explanation:

Let's say that Edwin's garden was 400 feet long and 1 foot wide.

If Tony's garden is half as long and 6 times as wide, then we need to divide 400 in half and multiply 1 by 6 to get the dimensions of Tony's garden.

400/2 = 200 ft

1 × 6 = 6 ft

Area of Tony's Garden = 6 x 200 = 1200 ft²

Consider this right triangle with given measures.

What is the length of the missing leg?

Answers

Answer:

The answer is 6 feet.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

A parallelogram has base 16 cm and height 5 cm. What is its area?

Answers

80 Bc when ur trying to find the area ur just multiplayer the base an height. 16•5=80cm

Answer:

80 is the answer u have read the formula

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