Mathematics High School

Solve for x not y please I am stuck

Answers

Answer 1

Answer:

x=2, x=1

Step-by-step explanation:

Answer 2

let's solve :

[tex] {4}^{2x} - 20(4 {}^{x} ) + 64 = 0[/tex]

let's take

[tex]2 {}^{2x} = y[/tex]

now,

[tex]{(2{}^{2x} )} {}^{2} - 20(2) {}^{2x} + 64 = 0[/tex]

[tex]y {}^{2} - 20y + 64 = 0[/tex]

[tex]y {}^{2} - 16y - 4y + 64 = 0[/tex]

[tex]y(y - 16) - 4( - 16) = 0[/tex]

[tex](y - 16) (y - 4) = 0[/tex]

[tex]y = 16 \: \: or \: \: y = 4[/tex]

if y = 16, then :

[tex]2 {}^{2x} = 16[/tex]

[tex] {2}^{2x} = 2 {}^{4} [/tex]

[tex]2x = 4[/tex]

[tex]x = 2[/tex]

and if y = 4 :

[tex] {2}^{2x} = 4[/tex]

[tex] {2}^{2x} = {2}^{2} [/tex]

[tex]2x = 2[/tex]

[tex]x = 1[/tex

hence, value of x = 1 or x = 2

Related Questions

Find sin A.16/12, b.16/20, c.12/20, d. 12/16, I will give branliest!!!, pls help!

Answers

Answer:

B) 16/20

Step-by-step explanation:

sin∅=opposite/hypotenuse

sin∅=16/20

Therefore, your answer is B.

Answer:

(12/16)

Step-by-step explanation:

Does (1, 10) make the inequality y < 8x + 2 true?

Answers

Answer:

This is false. (1, 10) is not a solution of this inequality

Step-by-step explanation:

Copy down the inequality:

y < 8x + 2

Now substitute 10 for y and 1 for x:

10 < 8(1) + 2 or 10 < 8 + 2

This is false. (1, 10) is not a solution of this inequality

Answer:

False is the answer.

Step-by-step explanation:

#I hope it help

for brainiest:):):):):):)

Answers

Answer:

4=12%

5=7

6=12.25

7=82%

8=15.36

Step-by-step explanation:

youre welcome

find the volume................

Answers

Answer:

[tex]1) v= 400 ft^{2}[/tex]

[tex]2) v=1093.3m^{3}[/tex]

Step-by-step explanation:

1) v= 1/3 ab ×h

v= 1/3 (10)(10)×√13²-5²

v= 400 ft²

-------------------

2) v= πr² h/3

v= 1/3 × π×(6)²×29

v= 1/3×π×12×29

v= 348π

v= 1093.27

≈1093.3

---------------

hope it helps...

have a great day!!

is it true or false that The adjacent is the shortest side on a right triangle.

Answers

False... it can be any size, but it will only be smaller than the hypotenuse.... hope this helps!

Simplify the mathematics question

Answers

this simplified becomes

x+5/2x+3

Answer question for brainleist

Answers

Answer:

m<D = 52°

Step-by-step explanation:

x + 20 + 3x + 32 = 180

4x + 52 = 180

4x = 128

x = 32

m<D = x + 20 = 32 + 20 = 52°

Answer this please i am stuck

Answers

Answer:

adasdasdadsads

Step-by-step explanation:

Answer:

its impossible

Step-by-step explanation:

Roger bowled 3 games last weekend. His scores are listed below. What is the MEAN of Roger's scores? 155 , 165 , 142 .

Answers

Answer:

154

Step-by-step explanation:

because you add 155 +165+142. =462

you do 462 ÷3 =154

Find the maximum walking speed of a coyote with legs 0.46 m long. How much faster can a giraffe walk than a coyote?

Answers

Answer:

7.03 ft/s

Step-by-step explanation:

To obtain speed using the model :

Speed = sqrt(gL)

L = Length of leg, g = acceleration due to gravity

Length of leg of a giraffe = 6.03

g = 9.8 m/s or 32 ft/s²

Speed of giraffe in ft/s = sqrt(32 * 6.03) = 13.89 ft/ s

Speed of coyote ; L = 0.46 m

L in feets = 0.46 * 3.23 = 1.4858 feets

s = sqrt(1.4858 * 32) = 6.895 ft/s = 6.86 ft/s

Difference in speed :

13.89 - 6.86 = 7.03 ft/s

Giraffe has 7.03ft/s more speed Than a coyote

I will give Branliest

Are these polygons ABCD & EFGH congruent, similar or neither

No guessing

Answers

Neither because they are different size and mirrored it could’ve been congruent but it’s double the size and congruent is mirrored and the same size

Please help Find PC=

Answers

PC = 9.0 - 1 decimal place. 9.03 - 2 decimal places
(didn’t know how many you wanted it to so here’s both lol)

PLZ HELP ILL GIVE U BRAINLIEST XDDD✨

Answers

29 is the twelfth number

9. A bag contains 1 orange cube, 6 white cubes, and 3 grey cubes. Three cubes are drawn,
one at a time, without replacement Find the probability that the order in which they are
selected is
a white, white, white
b) white, white, grey
c) orange, white, grey
d) grey, white orange
urgent plz answer!!

Answers

Either a or b. Probably b.

There are far more white cubes than orange, so you can assume you won’t pull the orange cube. There is double the amount of white cubes than grey, but you’re still likely to pull at least one grey cube.

can someone please help quick

Answers

i think it’s BA... hope this helps!

What is the length of the arc by a central angle of 85 degrees and a radius of 8cm to the nearest tenth of a cm?

Answers

9514 1404 393

Answer:

11.9 cm

Step-by-step explanation:

Arc length is given by ...

s = rθ . . . . . . θ is the central angle in radians

Your central angle is 85°, so is (85/180)π radians = 17/36π radians.

Then the arc length is ...

s = (8 cm)(17/36π) ≈ 11.9 cm

The length of the 85° arc is about 11.9 cm.

En un pueblo viven 1.500 personas el 35%de ellas son niños y el resto son adultos cuantos adultos viven en el pueblo

Answers

Answer:

Cantidad de adultos= 975

Step-by-step explanation:

Dada la siguiente información:

Cantidad total de personas= 1.500

Proporición de niños y niñas= 0,35

Proporción de adultos= (1 - 0,35)= 0,65

Para calcular la cantidad de adultos, debemos utilizar la siguiente formula:

Cantidad de adultos= cantidad total de personas*proporción de adultos

Cantidad de adultos= 1.500*0,65

Cantidad de adultos= 975

Si se llenan 45 frascos de 200 gramos de mayonesa cuantos frascos de 150 gramos se puede llenar con la misma cantidad

Answers

Answer:

45x200gr/150gr= 60

Step-by-step explanation:

Can someone please help me with this.

Answers

Answer:

use a calculator so the multiple choice question isn't a cd

PLZ I NEED THIS SOON:
Sketch the graphs:
y=x; y=−x; y= |x|

Answers

Answer:

took a screen shot hope it helps

Step-by-step explanation:

Answer:

y=x slants in between the 1st and third quadrant

y=-x slants in between the second and fouth quadrant

y=|x| am not sure but I think it's the same as y=x

Find the Quadrant in which csc x< 0 and tan x > 0

Answers

Answer:

The chosen topic is not meant for use with this type of problem. Try the examples below.

( − 9 , − 7 )

(-4,7)

(1,3)

❗❗❗PLS I NEED HELP ON THIS I DON'T UNDERSTAND PLS HELP❗❗❗❗❗❗
❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗

Answers

Answer:

its a little blurry on my screen, sorry

A carpenter had a piece of wood that was 12 feet in length.If he needs only 8 5/12 feet of wood, then how much wood should he cut?

Answers

3 7/12 feet of wood.

ASAP!!! and no links please 25 points!!!!!
The radius of a can of soda is 0.75 inches. Find the area of the top of the can. Round to the nearest hundredth.

(Values only! No units!)

Answers

Answer:

2.36

Step-by-step explanation:

Multiply the radius (0.75) with the value of pi (3.14.....)

0.75 x pi = area

area = 2.35619449019

ROUNDED TO HUNDREDTHS = 2.36

hope this helps :)

can someone help me with this question

Answers

the last one with four boxes of x over 24

In ΔKLM, l = 95 cm, m = 73 cm and ∠K=31°. Find ∠L, to the nearest degree.

Answers

Answer:

≈100∘

Step-by-step explanation: I checked delta math

In a team of 24 players, about 80% of the team was on the honor roll last quarter. How many students were on the honor roll?

Answers

Answer:

Step-by-step explanation:

24 * 80% = 24*0.8 = 24* 8/10 = 24*4/5 = 96/5 = 19.2

round down becuase 0.2, or 20% of a person can not earn honor roll without suffering catastrophic organ failure.

in
2. Susan is divorced and has one child that she pays for. She will file her taxes as a head of
household for federal income tax and single for state tax purposes. Susan's gross income is
$48,500. Susan lives in Louisiana

Answers

Answer:

what si the questions

Step-by-step explanation:

Find the value of the ratio.

Can someone help please???

Answers

Answer:

SOH CAH TOA........... Cosine=Adj/hypotenuse...... ***Cosine X=15/39 ****

SOH CAH TOA......... Sine= Opp/hypotenuse..... ***Sine Z=30/40***

Step-by-step explanation:

SOH CAH TOA........... Cosine=Adj/hypotenuse...... ***Cosine X=15/39 ****

SOH CAH TOA......... Sine= Opp/hypotenuse..... ***Sine Z=30/40***

There are 48 students in a class and 6 of them are girls. What percent are boys

Answers

Answer:

87.5%

Step-by-step explanation:

If there are 48 students in total and 6 girls, then the remaining students are boys

The number of boys = 48 - 6 = 42

Now, calculate the %

42/48 x 100 = 7/8 x 100 = 87.5%

Hope this helps

If there are 48 students in a class and 6 of them are girls then the percentage of boys in the class is 87.5%,

Use the concept of percentage defined as:

A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.

The proportion, therefore, refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.

Given that,

Number of students = 48

Number of girls = 6

Then number of boys = 48 - 6

The number of boys = 42

Therefore,

The percentage of boys in the class is,

[tex]\dfrac{42}{48}\times 100= 87.5 \text{ percent}[/tex]

Hence,

There are 87.5 percent of boys in the class.

To learn more about the percentage visit:

https://brainly.com/question/24877689

#SPJ6

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