What is the value of x in the eguation +4= 2(X-1)2
O5
11
2
O7

Answers

Answer 1

Answer:

2 or C

Step-by-step explanation:

I'm taking this to mean

4 = 2(x - 1)^2

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

4 = 2x^2 - 4x + 2

2x^2 - 4x - 2  =  0

x^2 - 2x - 1 = 0

What you get from here is sqrt(2) as one of the roots.

That is not nearly an answer.

4 = 4(x -1)

4 = 4x - 4

8 = 4x

x = 8/4

x  =  2

That makes C the answer.


Related Questions

( 10 - 2n ) - ( 5n - 8)

Answers

Answer:

− 7n+18

Step-by-step explanation:

(10- 2n)- (5n- 8)

− 2n+10-5n+8

-7n+18

Somebody help plz!!! I need some help I’m struggling

Answers

Answer:

4

Step-by-step explanation:

PLEASE HELP!!!
Write an expression for the sequence of the operation described below

multiply the quotient of c and 10 by 4

Do not simplify any part of the expression.

Answers

Answer:

[tex]( c / 10 ) * 4[/tex]

Step-by-step explanation:

Please help quickly I will give brainlist

Answers

Answer:

a. 73%

b. 73:100

c. 0.73

d. 73/100

Step-by-step explanation:

If you are only talking about the shaded part out of the total number of squares then these are your answers

73 out of 100 is 73%

73:100 is the ratio

73/100 = 0.73 is the decimal

73/100 is the fraction

Which phrase represents the meaning of the symbol Less-than?
less than
equal to
take away
greater than

Answers

Answer:

less - than is the answer

hope it helps you

Answer:

Answer above is correct

Step-by-step explanation:

True or False? (2,-2) is the solution to the system of equations.
3x - 2y = 10
5x + 3y = 4
True
False

Answers

Answer:

True cuz they intercept at (2,-2) plz braliest me

Step-by-step explanation:

20 POINTS!!!!!

Find the common difference for the following sequence and fill in the missing terms. Show all calculations.
-12, __, 10, __, 32, 43

Answers

Answer:

Step-by-step explanation:

It was 12 take away 210 add 20 to 3243

Answer:

1 and 21

Step-by-step explanation:

-12,  1  , 10 , 21   , 32,   43

43-32 is 11

32-11=21

21-11 is 11

10-11 is 1

Helppp!!
What is the value of the missing angle?

Answers

Answer:

105

Step-by-step explanation:

all angles inside a triangle add up to equal 180, the inside angle at R is 75 degrees, the TP line is obviously a 180 degree angle, because it's just a straight line, so you subtract 75 from 180 to get 105

hope this helps :)

30 POINTS!!!! and i will give bairnless plzz

Answers

Hello friend! I believe the answer would be $280

Answer:

280

Step-by-step explanation:

i need help someone help pls and thx

Answers

i believe 12 feet , if im wrong im sorry!
The Answer is 12 feet because that is the highest point that the line/curve on the graph goes.

The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 10 percent as much of its carbon-14 as compared to a living sample. How old is the fossil?
1904 years
38077 years
19039 years
3808 years

Answers

Answer:

It is 19039 years

Step-by-step explanation:

I took the test and double checked on my calculator.

PLEASE help I really have to get this right!
The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people. What is an equation that gives the city's population p (in thousands of people) x years after 2010?
A.p=4x+50
B.p-450=4(x-5)
C.p-15=4(x-450)
D.p=4x+15

Answers

Robert Dwayne Junior

Help please thank you !

Answers

Answer:

3

Step-by-step explanation:

2/36=x/54

Cross multiply and find x

Answer:

it is 3 cups!

Step-by-step explanation:

36+18=54

2 cups were used for 36, 3 cups were used for 54 :)

look at the picture please ​

Answers

The answer is the First one and the Second to Last one.

Please anyone I’ll mark as a branlist

Answers

Answer:

the first option is the answer, r = √6

Step-by-step explanation:

[tex]hypotenuse = \sqrt{opposite {}^{2} + adjacent {}^{2} } [/tex]

hypotenuse = q = √12

adjacent = p = √6

opposite = r

substitute the values into the hypotenuse formula

[tex]q = \sqrt{r {}^{2} + p {}^{2} } [/tex]

[tex] \sqrt{12} = \sqrt{r {}^{2} + ( \sqrt{6} ) {}^{2} } [/tex]

[tex]( \sqrt{12} ) {}^{2} = r {}^{2} +6[/tex]

[tex]12 = r {}^{2} + 6[/tex]

[tex]12 - 6 = r {}^{2} [/tex]

[tex]6 = r {}^{2} [/tex]

[tex] \sqrt{6} = r[/tex]

[tex]r = \sqrt{6} [/tex]

A plane took 3 h 33 min to finish a journey. If the distance of the journey was 2840 miles, at what average speed did the plane travel?

Answers

Answer:

800mph

Step-by-step explanation:

Step one

Given data

time taken= 3 h 33 min

= 3.55 hours

distance = 2840 miles

Step two:

from speed= distance/time

substitute

speed= 2840/3.55

speed= 800mph

Hence the speed is 800mph

Use the distributive property to rewrite the expression -3 + 9(-4x + 4)

Answers

Answer:

-3(-11+12x)

Step-by-step explanation:

that should be the answer

plzzzzzzzzzzzzzzzzzzz

Answers

Answer:

4x²+20x+25

Step-by-step explanation:

(2x+5)² = (2x+5)(2x+5)

(2x+5) (2x+5) = 2x(2x) + 2x(5) + 5(2x) + 5(5)

= 4x² + 10x + 10x + 25

= 4x²+20x+25

Jervane is planning on buying a coffee and several donuts for a road trip. She wants to spend no more than $20 in total. Coffee costs $3 and donuts are $2 each. Write and solve an inequality to determine the maximum number of donuts that Jervane can buy. Be sure to include units on your answer.

Answers

Answer:

8

Step-by-step explanation:

Given:

Total money Jervane can spend = $20.

Cost of a coffee = $3.

Cost of a donut = $2.

To find: Maximum number of donuts Jervane can buy.

Solution:

Let the number of donuts she can buy be [tex]x[/tex].

She wants to spend no more than $20 in total.

So,

[tex]3+2x\leq 20[/tex]

[tex]\Rightarrow 2x\leqslant 20-3[/tex]

[tex]\Rightarrow 2x\leqslant 17[/tex]

[tex]\Rightarrow x\leqslant \frac{17}{2}[/tex]

[tex]\Rightarrow x\leqslant 8 \frac{1}{2}[/tex]

As the number of donuts can only be a natural number.

Hence, the maximum number of donuts that Jervane can buy are 8.

Select the reason why these triangles are
similar. If they are not, select "Not similar".
Α. ΑΑ
B. SAS
C. SSS
D. Not similar

Answers

Answer:

not similar

Step-by-step explanation:

similar means proportional

1, 1, and 0.5 are not proportional to 3.5, 3, and 2.25

As the two side lengths of the smaller triangle is the same but the ratio of those side in a larger triangle and the smaller triangle is different they are, D. Not similar.

What is congruency?

We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.

We know two triangles are similar if the ratios of their corresponding sides are equal.

The larger triangle has sides 3, 3.5, and 2.25.

And the smaller triangle has sides 1, 1, 0.5.

As the smaller triangle has side lengths 1, 1, and the ratio of the sides of the larger triangle and the smaller triangle is (2 + 1)/1 and (2.5 + 1)/1 which is equal to 3/1 and 3.5/1 3 and 3.5 but the smaller side has 1 and 1, therefore, they are not similar.

learn more about congruency here :

https://brainly.com/question/7888063

#SPJ2

Mt. Calvary's budget for a swing set to be built for the Children's Church is $900. If the cost of the swing set should be at least one-fourth as much as the fort, how much can be spent on the fort and still build the swing set?

Answers

Answer:

[tex]Amount = \$4500[/tex]

Step-by-step explanation:

Represent Swing Set with S and Fort with F

Given

[tex]S = \$900[/tex]

[tex]S = \frac{1}{4}\ of\ F[/tex]  --- S = one-fourth of F

Required

Determine the amount spent on both

Substitute 900 for S in [tex]S = \frac{1}{4}\ of\ F[/tex]

[tex]\$900 = \frac{1}{4} * F[/tex]

Multiply both sides by 4

[tex]4 * \$900 = \frac{1}{4} * F * 4[/tex]

[tex]4 * \$900 = F[/tex]

[tex]\$3600= F[/tex]

[tex]F = \$3600[/tex]

The total amount to be spent it:

[tex]Amount = F + S[/tex]

[tex]Amount = \$3600 + \$900[/tex]

[tex]Amount = \$4500[/tex]

Can somebody do this I’ll mark brainliest pls

Answers

Answer:

both are 75 degrees

Step-by-step explanation:

the angles add up to 180, as they are also vertical angles

Answer:

b=c since they are vertical angles, b=75 and c=75

Step-by-step explanation: The angle opposite of the given is the same (105) that gives you two measure. Add 105+105 to get 210. A set of vertical angles=360 degrees, take away 210 from 360 to get the measure of b+c. Divide that by two to get the measure of either b or c.

Find a point on Y-axis which is equidistant from the points (2,-2) and (-4,2)
answers fast pleasee ......help me out guys

Answers

Answer:

( -1, 0)

Step-by-step explanation:

(2 + -4)/2 = -1

(2 + -2)/2 = 0

The Girl Scout troop sold 81 boxes of cookies. Each box had 10 cookies. About how many cookies did the Girl
Scout troop sell? Round to the greatest place value.
A. 81 cookies
B. 8,000 cookies
C. 800 cookies
D. 80 cookies

Answers

I believe the answer is c

Sarah had 36 free throw attempts during a game and made at least 75% of the free throws.

What is the greatest number of free throws Sarah could have missed during the game?

Answers

Answer:

9 free-throws

Step-by-step explanation:

75% of 36 = 27

36-27=9

She could have missed up to nine free throws

Answer:

3

Step-by-step explanation:

25% of 12 is 3. Brainliest pls :)

what is the slope of (-5,-2)(5,3) ?? show work pls...

Answers

slope =1/2x hopefully this helps

The circumference of a circle is 7.4mm.
Find the length of the diameter.
Give your answer rounded to 3 SF.

Answers

Answer:

2.355cm

Step-by-step explanation:

Please fill in the three leftover boxes

Answers

Homogeneous mixture: solution
Heterogeneous mixture: colloid and suspension

100 POINTS!!!!!!!!!!!!!!!!!

Identify the probability to the nearest hundredth that a point chosen randomly inside the rectangle is in the triangle.

A) 0.15
B) 0.69
C) 0.85
D) 0.31

Answers

0.85, I’m guessing give me the points lol

what is h ( t ) = − t ( 16 t + 7 ) in standard form

PLEASE HELP !!!!

Answers

y = 2x - 4

y = 4x - 6

y = 3x - 4

that's what i got

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