Hence, find the values of y that satisfy the equation 2y-1)2 – 7(y – 1) + 4 = 0.​

Answers

Answer 1

Answer:

y=3

Step-by-step explanation:

(2y-1)2-7(y-1)+4=0

4y-2-7y+7+4=0

9-3y=0

9=0+3y

9=3y

9/3=y

y=3


Related Questions

5/5*5/10*5/15*5/20*5/25

Answers

Answer:

8/20

Step-by-step explanation:

what is the smallest positive integer that can be doubled to get a perfect cube and tripled to get a perfect square

Answers

Its 1

Doubled:-

[tex]\\ \rm\longmapsto 1\times 1=1=1^3[/tex]

Tripled

[tex]\\ \rm\longmapsto 1\times 1\times 1=1=1^2[/tex]

Why do both of these show 27,974

Answers

In Indian numerical system (or number system) is a written system that is adapted for representing numbers within India.

This is a mathematical notation to consistently represent data of a certain set, with numbers or other symbols.In the numbering system that is implemented in India to write numerals. We utilize ten symbols to symbolize the numbers in the Indian Number System.In the Indian system, the next ten powers are known as one, ten, hundred, lakh, ten lakh, crore, ten crores,... etc.

Given:

27,974

[tex]\to \bold{20,000 +7,000+ 900+ 70 +4=27,974} \\\\\to \bold{27\ thousands + 97\ tens + 4\ ones =27,974}\\\\OR\\\\\to \bold{27\ thousands + 9\ hundred + 74 =27,974}\\\\[/tex]

Learn more:

brainly.com/question/21751836

2. Show that a. the points 3 + i,6,4 + 4i are vertices of right triangle​

Answers

Answer:

Step-by-step explanation:

[tex]Z_1=3+i\\Z_2=6\\Z_3=4+4i\\\\||Z_2\ Z_1||^2=||-3+i||^2=9+1=10\\\\||Z_1\ Z_3||^2=||1+3i||^2=10\\\\||Z_2\ Z_3||^2=||-2+4i||^2=20\\\\And\ 10+10=20[/tex]

Using the converse of the Pythagorean's theorem, the triangle is right.

Using Pythagorean theorem, the points 3 + i, 6, and 4 + 4i indeed form the vertices of a right triangle.

The Pythagorean theorem states that in a right triangle, the sum of the squares of the lengths of the two shorter sides (legs) is equal to the square of the length of the longest side (hypotenuse).

Let's calculate the distances between the points and then check if the Pythagorean theorem holds for them.

Distance between points A (3 + i) and B (6):

Distance AB = |6 - (3 + i)|

                     = |6 - 3 - i|

                     = |3 - i|

                     = [tex]\sqrt{(3^2 + (-1)^2)[/tex]

                     = √10

Distance between points A (3 + i) and C (4 + 4i):

Distance AC = |4 + 4i - (3 + i)|

                     = |1 + 3i|

                     = [tex]\sqrt{(1^2 + 3^2)[/tex]

                     = √10

Distance between points B (6) and C (4 + 4i):

Distance BC = |4 + 4i - 6|

                     = |-2 + 4i|

                     = [tex]\sqrt{((-2)^2 + 4^2)[/tex]

                     = √20

Now let's check if the Pythagorean theorem holds for these distances:

Longest side: [tex]BC^2 = (\sqrt20)^2 = 20[/tex]

Sum of squares of shorter sides:

[tex]AB^2 + AC^2 = (\sqrt10)^2 + (\sqrt10)^2[/tex] = 10 + 10 = 20

Since the sum of the squares of the shorter sides is equal to the square of the longest side.

So, the points 3 + i, 6, and 4 + 4i are vertices of a right triangle.

Learn more about Pythagorean theorem here:

https://brainly.com/question/28361847

#SPJ3

A(3,8), B(3,-2), C( t ,1 ), if AB=2BC, find the possible values of t.​

Answers

Find the distance between A and B, AB,

[tex]AB=\sqrt{(3-3)^2+(-2-8)^2}=10[/tex]

Next, find the distance between B and C, BC,

[tex]BC=\sqrt{(t-3)^2+(1-2)^2}=\sqrt{(t-3)^2+1}[/tex]

The equation is,

[tex]10=2\sqrt{(t-3)^2+1}[/tex]

[tex]25=(t-3)^2+1[/tex]

[tex]t^2-3t+10=25[/tex]

[tex]t^2-3t-15=0[/tex]

Use quadratic formula to get possible values of t,

[tex]t_1=\frac{3+\sqrt{69}}{2}[/tex]

[tex]t_2=\frac{3-\sqrt{69}}{2}[/tex]

Hope this helps :)

What is
6+4-3+9x10-7+3x28-2=

Answers

Answer:

172

Explanation:

172 is the answer to the question

this whole thing hurts my brain.

Answers

Answer:

1.) C. 32

2.) Stem-and-leaf plot

Step-by-step explanation:

    This is a stem-and-leaf plot. The stem represents tens and the leaves represent units. To make it easier to look at, it is equivalent to this:

20, 28, 29, 29, 31, 32, 36, 41, 42

    Now, to find the mean, add up all the numbers and divide the sum by the number of values.

(20 + 28 + 29 + 29 + 31 + 32 + 36 + 41 + 42)/9 = 288/9 = 32

Please give the code :/

Answers

Step-by-step explanation:

1. m = (9-3)/(2-1) = 6/1 = 6 => B

2. m = (-7-5)/(2+1) = -12/3 = -4 => G

3. the horizontal line passes (0,4) => m = 0 =>I

4. m = (2-1)/(8-8) = 1/0 = oo => undefined => A

Hurry in need of help! Please

Answers

[tex]\\ \sf\dashrightarrow \dfrac{x+20}{2}=3x[/tex]

[tex]\\ \sf\dashrightarrow x+20=2(3x)[/tex]

[tex]\\ \sf\dashrightarrow x+20=6x[/tex]

[tex]\\ \sf\dashrightarrow 20=6x-x[/tex]

[tex]\\ \sf\dashrightarrow 5x=20[/tex]

[tex]\\ \sf\dashrightarrow x=\dfrac{20}{5}[/tex]

[tex]\\ \sf\dashrightarrow x=4[/tex]

Irene has a checking account. On Monday she writes a $160 check for groceries. Then she deposits $125
into her account. Finally, she writes another check for $40. What was the total change in the amount of
money in Irene's account on Monday?

A. $85
B. - $85
C. $75
D. -$75
E. $325
F. - $325

Answers

Answer:

D. - $75

Step-by-step explanation:

We mark checks as negative and a deposit as positive:

- 160 + 125- 40

Add up to get the total change of:

-160 + 125 - 40 = - 75

Correct choice is D

Answer:

Answer :-

Here, Irene is having a checking account. First she write a check of $160. Then means it has an decrease money. (-160) Now, She deposit $125. This means Now, the balance is -160 + 125 = $-35. She again write a check of $40. (-40). Total change =>

-40 - 35

-75

Option D is correct mate!

If 2x = 2, what is the value of x?

Answers

Answer:

1

because 1 times anything is that number!

Step-by-step explanation:

the height of each door on the plan is given 1,5cm but the height of each door is 1,92m is an actual size.show that the scale of the house is 1:128​

Answers

Answer:

It is.

Step-by-step explanation:

1.5cm is in the plan.

1.92m is in real life.

We need to convert m to cm so 1.92m=192cm

The ratio is 1:128.

1.5cm in plan as is 192 cm in real life.We write that as the ratio of: 1.5 : 192.

We need to prove that it is the actual scale so we equal this ratio(1.5:192) and the other ratio(1:128):

1.5 : 192 = 1 : 128

Then we multiply the numbers that are in and out of the equation like this:

1.5 * 128 = 192 * 1

192 = 192 It is proven beacuse the numbers are equal. The scale of the house is 1:128

PLZ HELPPPPPPPPPPPPPPP

Answers

Answer:

x = -2

JK = 18 units

Step-by-step explanation:

3x + 15 = 8x + 25

15 - 25 = 8x - 3x

-10 = 5x

x = -10/5

x = -2

(3x + 15) + (8x + 25)

(3(-2) + 15) + (8(-2) + 25) = JK

((-6) + 15) + ((-16) + 25) = JK

9 + 9 = JK

JK = 18
••••••••••••••••••••••••••••••
Please correct me if my
answer is wrong, thank
you

Riley is asked about her age . She answers as follows . “My age is 3 more than twice the age of my younger brother.” how old is her younger brother if Riley is 35 years old ?

Answers

Answer:

Her younger brother is 11 years old

Step-by-step explanation:

35=3+2x

35-3=2x

32=2x

32÷2=2x÷2

11=x


What number sentence that means “2 more than 2 times a number" ?

2 + 2n
2/2n
2(2n)
2 - 2n​

Answers

9514 1404 393

Answer:

  (a)  2 + 2n

Step-by-step explanation:

If n represents the number, then "2 times a number" is 2n. Two more than that is ...

  2 + 2n

Find the absolute values
| -7| =7 | -6 | =6

Answers

Answer:

7, 7, 6, 6

Step-by-step explanation:

Answer:

6.6.7.7

Step-by-step explanation:

that is we remove the subtract sign (negative sign)

Given the recursive sequence defined by:
tn=5tn-1 + 3tn-2
with ti=2 and t2 = 4
Which of the following would be the first 5 terms of the sequence?

Answers

Answer:

2, 4, 26, 142, 788

Step-by-step explanation:

Using the recursive rule and t₁ = 2, t₂ = 4 , then

t₃ = 5t₂ + 3t₁ = 5(4) + 3(2) = 20 + 6 = 26

t₄ = 5t₃ + 3t₂ = 5(26) + 3(4) = 130 + 12 = 142

t₅ = 5t₄ + 3t₃ = 5(142) + 3(26) = 710 + 78 = 788

First 5 terms are 2, 4, 26, 142, 788

Solve the following 3x^2+18-81=0

Answers

Answer: 9 or 3

Step-by-step explanation:

Step-by-step explanation:

[tex]3 {x}^{2} + 18x - 81 = 0 \\ \\ {x}^{2} + 6x - 27 = 0 \\ (x - 3)(x + 9) = 0 \\ x - 3 = 0 \: \: \: \: \: x + 9 = 0 \\ x = 3 \: \: \: \: x = - 9[/tex]

b
Find all the missing angles - a,b,c, and d​

Answers

a=65° d=75° b=25° c=25°

Answer:

a=65° d=75° b=25° c=25°

Step-by-step explanation:

Have a good day

-Bradi

Given g (x)= -x -2 find g (-5)

Answers

Answer:

g(-5) = -7

Step-by-step explanation:

given:

[tex]g(x) = -x-2[/tex]

find:

[tex]g(-5) [/tex]

~~~~~~~~~~~~

➡️ [tex] g(-5) = -(-5) - 2[/tex]

➡️ [tex] g(-5) = -(-5 - 2) [/tex]

➡️ [tex] g(-5) = -7 [/tex]

Can anyone solve this linear equation with elimination method? Please its important!

Answers

Answer: x = 1 and y = -1

Explanation:



help me do this plz

Answers

Answer:

X= –10

[tex] \frac{1}{2} x - 5 = - 10 \\ \frac{1}{2} x = - 10 + 5 \\ \frac{1}{2} x = - 5 \\ x = - 5 \times 2 \\ x = - 10[/tex]

I hope I helped you^_^

x=-10 because well 5 and 5 is 10

5.
A bag contains three types of candy (gumdrops, jelly beans, and jawbreakers). If
chosen at random, the probability of getting a gumdrop is 1/6 and the probability
of getting a jellybean is 1/3 What is the probability of getting a jawbreaker?

Answers

Answer:

P) = 1/2 jawbreaker

simplified P) 3/6 = 1/2 jawbreaker

Which both mean the same, so show simplified if asked and either answer if not asked would be marked high.

as 2/6 + 1/3 = 3/6

1 - 3/6 = 3/6

= 1/2    are the workings.

Step-by-step explanation:

Jelly bean = 1/3 = 2/6

Gumdrop = 1/6

2/6 + 1/6 = 3/6 = the difference of 1

1-3/6 = 3/6

Therefore; P) = 3/6 jawbreaker

The school choir ordered 436 pumpkin pies to sell as a fundraiser. The pies were shipped in 4 bins. Each bin held the same number of pies how many pies were in each bin

Answers

109 pumpkins

Step-by-step explanation:

I don't think this is right but

Find the volume of the
rectangular prism.
2 cm
1
8 cm
5 cm

Answers

Volume is length x width x height.
So, 2x8x5= 80 cubic centimeters

Help please due tomorrow

Answers

To make a scale factor you need to get to shapes of similar shape. As you can see two of the vertical sides are of similar shape soo.
We take the original over the scaled

2/6
Then simplify
1/3

Please brainlist ty :)

How would I write a number subtracted from 2 times a number is 19

Answers

21-2=19
hope this helps!!!
sorry if it’s not what you were asking:(

Solve the equation.
} (a + 2) = {(2-a)
WWW.
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution is
(Type an integer or a simplified fraction.)
B. The solution is all real numbers.
O C. There is no solution.
(Answer quickly)

Answers

B…………..5,fcgxrceecevvwwve

enter the range of values for x:

Answers

12x because you multiply it

FIRST TO ANSWER CORRECTLY GETS BRAINLIEST!!!

Answers

Answer:

6ft by 15ft

Explanation:

L1 = 10 ft

W1 = 4 ft

L2 = L1*(3/2)

W2 = W1*(3/2)

L2 = 10 ft times (3/2) = 15 ft

W2 = 4 ft times (3/2) = 6 ft

I hope this answer helps you out!

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