Here is the graph of y=x^2-2

Adrian is asked to use the graph to solve the equation x^2-2x-1=0

He intends to do so by drawing a straight line on a grid.

Complete Adrian’s method to find estimates for the solutions to the equation x^2-2x-1=0
You must show how you get your solution.

All are true

#1

As BC=KL

[tex]\\ \sf\longmapsto B=<L[/tex]

#2

Already denoted in diagrams

#3

By SSS similarity triangles are congruent

Answer:

4

Step-by-step explanation:

because since it says 5 minutes

and. 5×4=20 so 4 gallons of water in 1 minute

________

[tex] \: [/tex]

[tex]0.1 \times 0.01 \times 0.001 = ...[/tex]

[tex] = \frac{1}{10} \times \frac{1}{100} \times \frac{1}{1.000} [/tex]

[tex] = \frac{1}{10 \times 100 \times 1.000} [/tex]

[tex] = \bold{ \frac{1}{1.000.000}} [/tex]

Answer:

[tex]0.1 \times 0.01 \times 0.001 = 0.000001 \\ \\ \\ \\ i \: hope \: it \: is \: helpfull[/tex]

Answer:

hope it helps you.....

and I m feeling bad for my handwriting

The proof of the value of the inverse equation f^-1(50) = 3 is below

From the question, we have the following parameters that can be used in our computation:

f(x) = 2x^3 - 4

To show that f^-1(50) = 3, we simply show that

f(3) = 50

substitute the known values in the above equation, so, we have the following representation

f(3) = 2 * 3^3 - 4

Evaluate

f(3) = 50

Hence, the proof of the value of the inverse equation is done

Read more about inverse equation at

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Answer:

It would be 86 as 43% of 200 is 86

Step-by-step explanation:

Answer: A = X + Y; B = X xor Y. The task is to make X as minimum as possible.

Step-by-step explanation:

Answer:

1.b

2.d

Sana makatulong

1. Optiond D is correct,  Triangle proportionality theorem can be used to  find a missing length in a right triangle.

2. Option D is correct, the value of x is 6.

1. The  Triangle proportionality theorem can be used to  find a missing length in a right triangle.

The triangle proportionality theorem states that if a line parallel to one side of a triangle intersects the other two sides at different points, then it divides the remaining two sides proportionally.

2. By triangle proportionality theorem:

NO/OP=NM/x

20/8=15/x

Simplify the LHS:

5/2=16/x

Apply cross multiplication:

5x=15×2

5x=30

x=30/5

x=6

Hence, the value of x is 6.

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Answer:

399 minutes a month

Step-by-step explanation:

As I understand the question the answer would, in other words, be how many minutes you can long-distance call with the economy plan for under $30.

The unit ratio is 5 cents per minute, which equates to 20 minutes worth of call time for one dollar (100/5).

The economy plan is $20 cheaper than the deluxe plan. $20 spent on long-distance calling gets you 400 mintues, but the question asks for an integer that would still leave remaining money.

Therefore the answer is 399 minutes of long-distance calling, which would leave five unspent cents.

Answer:

85%

Step-by-step explanation:

Divide the number of problems gotten right by the total number of problems.

Sarah got an 85%.

Use this method.

part/whole = %/100

So.

17/20 = x/100

Cross multiply.

17•100=1700

20•x=20x

Divide by 20

1700÷20=85

Therefore the answer is 85%

X = 88°

based on the isosceles triangle, you can solve it.                                                                                          

Answer:

SAS because they stand for side angle side

Equation: y = mx + b

3/5x + 3 = y

Hope this helps!

Answer:

x is 60 because the total of angles in a triangle is 180 degrees

Answer: 5

Step-by-step explanation:

Since we are given two angles and one side, we can use the side angle side comparison logic to figure out that all sides are 7 and all angles are 60. Since we are given that a side with length 7 is also 2x-3, we can infer that 2x-3=7. 2x=10, x=5. easy

Step-by-step explanation:

g(x) = x² + 3

g(-5) = (-5)² + 3

g(-5) = 25 + 3

g(-5) = 28

Answer: each book costs $13

Step-by-step explanation:

dividing 65 by 5 gets the answer

Answer:

13$ per book

Step-by-step explanation:

Divide 65/5 and it will give you the unit rate

Answer:

A

Step-by-step explanation:

(f+g)(x)=-2x+4+x^2-3x+5

so answe = x^2-5x+9

Answer:

the first time 4 and 6 intersent is 24

so 24 days after september 5th

september 29th

Hope This Helps!!!

Answer:

4.9 hours

Step-by-step explanation:

Divide 1,625 by 2.5 to identify what number is being multiplied by 2.5.

Ans: 650

Divide 3,185 by 650 to find the time for 3,185 gallons of water.

Ans: 4.9

4.9 hours is your answer.

Answer:

14

Step-by-step explanation:

8 - 3 = 5

25 / 5 = 5

9 - 5 = 4

4 x 2 = 8

8 + 6 = 14

Answer:

Step-by-step explanation:

Prime factorize 12 , 28 , 21  and 16

12 = 2 * 2 * 3 = 2² * 3

28 = 2 * 2 * 7 = 2² *7

21 = 3 * 7

16 = 2 * 2 * 2 * 2 = 2⁴

[tex]\dfrac{12^{7}*28^{6}}{21^{7}*16^{6}}=\dfrac{(2^{2}*3)^{7}*(2^{2}*7)^{6}}{(3*7)^{7}*(2^{4})^{6}}\\\\\\\\=\dfrac{2^{2*7}*3^{7}*2^{2*6}*7^{6}}{3^{7}*7^{7}*2^{4*6}}\\\\\\=\dfrac{2^{14}*3^{7}*2^{12}*7^{6}}{3^{7}*7^{7}*2^{24}}\\\\\\=\dfrac{2^{14+12-24}*3^{7-7}}{7^{7-6}}\\\\\\=\dfrac{2^{2}*3^{0}}{7^{1}}\\\\\\=\dfrac{2^{2}}{7}[/tex]

Hint:

[tex]a^{m}*a^{n}=a^{m+n}\\\\\\(a^{m})^{n}=a^{m*n}\\\\\dfrac{a^{m}}{a^{n}}=a^{m-n} \ if \ m >n\\\\\\\dfrac{a^{m}}{a^{n}}=\dfrac{1}{a^{n-m}} \ if \ n>m[/tex]

Answer:

A cube is a three dimensional shape that features all right angles and a height, width and depth that are all equal. A cube has 6 square faces. A cube has 8 points (vertices). A cube has 12 edges.

Or

solid, six-sided solid, cubicle, hexahedron, die, third power, regular hexahedron, block, dice, cuboid and Rubiks.

Step-by-step explanation:

Answer:

Add 8x to both sides of the inequality.

Step-by-step explanation:

Answer:

y = -3/4 x

Step-by-step explanation:

Divide y by −  3/4  by multiplying by by the reciprocal of −  3/4  therefore  x= -4y/3

​

.

Answer:

Graph the line using the slope and y-intercept, or two points.

Slope: Undefined

y-intercept: No y-intercept

x         y

-3        0

-3        1

Step-by-step explanation:

Below is a picture of the graph.    PLEASE MARK BRAINlIST

Answer:

y=x+8

Step-by-step explanation:

slope = y2-y1/x2-x1

slope = 7-5/-1+3

slope = 2/2

slope = 1

y=x+b

7=1(-1)+b

7=-1+b

b=8

y=x+8

Answer:

D

Step-by-step explanation:

7a + 6 = -5(a -6)

<=> 7a + 6 = - 5a + 30

<=> 7a + 5a = 30 - 6

<=> 12a = 24

<=> a  = 2

=> Answer is D

Hope this helps!

Answer:

a=2

Step-by-step explanation:

1. distribute the -5 to (a-6): 7a + 6 = -5a + 30

2. add 5a to both sides, and subtract 6 on both sides: 12a = 24

3. divide by 12: a = 2

Answer:

108

Step-by-step explanation:

The size of the fourth angel = 360 - ( 53 + 127 + 72 ) = 108

Answer:

a

Step-by-step explanation: