what is the graph of x+y=8 and y=x+6​

Answer:

D because it goes right then up!

Answer: it’s C

6.3% of the remaining contaminants are removed from water samples after each round of filters

Step-by-step explanation:

I got a good feeling

The value of b indicates 14.9% of the contaminants remains in water after each round of filters.

Exponential regression refers to the process of arriving at an equation for the exponential curve that best fits a set of data.

[tex]y =a b^{x}[/tex] is the general form of the exponential regression equation.

Let the exponential regression equation be [tex]y = ab^{x}[/tex].

Taking natural logarithm both the sides of [tex]y = ab^{x}[/tex]

⇒ [tex]ln y = a + x ln b..(i)[/tex]

For the value of a and b substitute the value of y and x from the given table.

substitute, y = 100 and x = 0 in equation (i)

⇒ [tex]ln100= a + 0[/tex]

⇒ a = 4.6

Substitute, y = 15, x = 1 and a = 4.6 in equation (i)

⇒ [tex]ln15 = 4.6 +( 1)lnb[/tex]

⇒[tex]2.7 - 4.6 = lnb[/tex]

⇒[tex]lnb = -1.9[/tex]

⇒ b = [tex]e^{-1.9}[/tex]

⇒ b = 0.149

⇒b = 14.9%

Hence, the value of b indicates 14.9% of the contaminants remains in water after each round of filters.

Learn more about the exponential regression equation here:

https://brainly.com/question/8448212

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Answer:

34.16

Step-by-step explanation:

55x.40=22 discount

55-22=33 sales price

33x.035=1.16 sales tax

33+1.16=34.16 total price

Answer:

$33.75

Step-by-step explanation:

hope this helps

Answer:

114 degrees

Step-by-step explanation:

Because they are vertically opposite angles

Answer:

Step-by-step explanation:

Both angles are opposite of each other, therefore, x = 114

Answer: 3.364

Step-by-step explanation: ?????

Answer:

147.92

Step-by-step explanation:

Let the monthly salary be x

He saves 12 % and that is 17.75

x* 12% = 17.75

Change to decimal form

x *.12 = 17.17

Divide each side by .12

x*.12 /.12 = 17.75/.12

x =147.91666666

Rounding to the nearest cent

x = 147.92

Answer:

S2

1. P is represented by -7

2. 1/2

Step-by-step explanation:

1. The P dot is right on the -7 mark, therefore, the number is -7

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2. There are 3 shaded out of 6, making it 3/6. Once you reduce 3/6, you would get 1/2

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Have a good day :)

Answer:

the answer is B

Step-by-step explanation:

Answer:

6.7

Step-by-step explanation:

x² = 45

x = 6.7

is the answer

Answer: [tex]2\ \text{units}[/tex]

Step-by-step explanation:

Given

Rate of increase in area of the circle is numerically equal to twice the rate of increase to twice the rate of increase in its circumference.

It can be written as

[tex]\Rightarrow \dfrac{d(\pi r^2)}{dt}=2\times \dfrac{(2\pi r)}{dt}\\\\\Rightarrow 2\pi r\dfrac{dr}{dt}=4\pi \dfrac{dr}{dt}\\\\\Rightarrow r=2\ \text{units}[/tex]

Answer:

Distance of ladder from base = 4.22 feet (Approx.)

Step-by-step explanation:

Given:

Length of ladder = 10 feet

Angle with ground = 65°

Find:

Distance of ladder from base

Computation:

Length of ladder (hypotenuse) = 10 feet

Distance of ladder from base (Base)

Using trigonometry function

Cosθ = Base / Hypotenuse

Cosθ = Distance of ladder from base / Length of ladder

Cos65 = Distance of ladder from base / 10

0.4226 = Distance of ladder from base / 10

Distance of ladder from base = 0.4226 x 10

Distance of ladder from base =  4.226

Distance of ladder from base = 4.22 feet (Approx.)

Answer:

C. (1, –1); minimum

Step-by-step explanation:

The answer to your question is letter “C”

The correct answer is c

Answer:

5.4 · 0.2

1.08 = 20%

5.4 + 1.08

6.48 ounce bottle

Answer:

Step 1

Step-by-step explanation:

it should've been 4×[tex]10^{3}[/tex]

Answer:

A

Step-by-step explanation:

step 1

= 4 . 10³ not 4 . 10²

Answer: 1/12

Step-by-step explanation:

First make all the fractions have the same denominator. To do that, multiply the fractions by a number that will get them the same denominator. In this case, multiply 1/4 by 3, and 2/3 by 4.

1/4 x 3/3 = 3/12

2/3 x 4/4 = 8/12

then you have 3/12 + 8/12 = 11/12

so, blue is 1/12

Answer:

1/12 of the pins are blue

Step-by-step explanation:

¼ yellow & ⅔ red

First you have to find a common denominator.

4×3 =12 & 3×4 =12 so the common denominator is 12.

Now × the numerator on the fraction with the same number that you x the denominator and you will get 3/12 and 8/12.

3/12 +8/12 = 11/12

12/12 - 11/12 = 1/12

Therefor 1/12 of the pins are blue

Answer:

4

Step-by-step explanation:

h + h

h=2

2+2

4

Answer:

Step-by-step explanation:

use the idea of similar triangles.

6/3 = 3/x

2x = 3

x = 3/2

Answer:

if I'm correct the answer is 0.45x

Answer:

1/6+1/6+1/6+1/6+1/6

Step-by-step explanation:

a unit fraction is a fraction with the numerator as 1

Answer:

BRO I HAVE THE SAME QUESTION FOR MY TEST....

ITS BIASED IM REALLLLY SURE

Step-by-step explanation:

Ratio-wise it is the same :)

They're just moving decimals

.42 : .02

4.2 : .2

42 : 2

420 : 20

Step-by-step explanation:

RS = 15/ tan57° = 9.7

RT = 15/sin57° = 17.9

Answer:

the answers are pi/6 and radius. hence the statement should read as

the length of the arc intercepted by third central angle is pi/6 times the length of the radius.

Answer:

8%

Step-by-step explanation:

We can solve this by making use of the simple interest formula

I= PRT/100

480= 3000×R×2/100

480= 6000R/100

Cross multiply

48000= 6000R

R= 48000/6000

= 8%

Hence the rate is 8%

Answer:

Student C

Step-by-step explanation:

The fraction ends up being 3 and you get 3* 3^-1 so you add 1 to the exponent.

Answer:

$765

Step-by-step explanation:

Given data

Principal= $750

Rate= 2%

Time= 1 year

The simple interest expression is given as

A=P(1+rt)

substitute

A= 750(1+0.02*1)

A= 750(1.02)

A= $765

Hence the final amount is $765

Answer:

hahahahahhahahahahahahah

Answer:

D. None of this

Step-by-step explanation:

(2p+4) 6

=12p+24

Answer:

None of these

Step-by-step explanation:

area of rectangle=length*breadth

=(2p+4)*6

=6*2p+4*6

=12p+24