rewrite in a simpler equivalent form and solve

y=4x+7

First we need to figure out the slope. We can do that using the equation (y2-y1)/(x2-x1). Substitute your numbers in for the xs and ys:

(-9-7)/(-4-0)=

-16/-4=

4

Now that we have the slope, we can figure out the intercept by using the equation y=mx+b and substituting one of the points in for x and y, the slope in for m, and solving for b.

I’m going to use (0,7) as it will be faster:

7=4(0)+b

7=0+b

7=b

The full equation will then be:

y=4x+7

Answer:

6967 years

Step-by-step explanation:

Given the exponential function :

R=100e−0.00043t

Time = t in years

R = final amount

Number of years in which only 5 grams of radium will be present :

R = 5

Plugging into our formula :

5 = 100 * e^−0.00043t

5 / 100 = e^−0.00043t

0.05 = e^−0.00043t

Take the In of both sides

−2.995732 = - 0.00043t

t = −2.995732 / - 0.00043t

t = 6966.819

t = 6966.819 years

t = about 6967 years

answer 0.0227014756

Step-by-step explanation:

or if you meant 312.775/7.1 it's 44.0528169

Answer: 260 minutes.

Step-by-step explanation:

This represents the ratio between the minutes he reads and the pages he reads: 40 : 52

The book Miguel is reading is 338 pages long. Miguel also reads 52 pages in 40 minutes. You can divide 338 by 52, which is equal to 6.5.

If it takes Miguel 40 minutes to read 52 pages, then we can multiply that by 6.5. 40 x 6.5 = 260.

In conclusion, it will take Miguel 260 minutes to read the entire book, or 4 hours and 20 minutes.

Answer:

260 minutes

Step-by-step explanation:

40:52

x:338

338*40=52x

13,520/52

260:338

Answer:

Decimal value is 99

Step-by-step explanation:

To convert 01100011 to decimal, we use the zero index method by counting from the last digit

0 = 7

1 = 6

1 = 5

0 = 4

0 = 3

0 = 2

1 = 1

1 = 0

Then we proceed by multiplying the binary digits by 2 and raising them to the power of their zero-index equivalent

(0*2^7) + (1*2^6) + (1*2^5) + (0*2^4) + (0*2^3) + (0*2^2) + (1*2^1) + (1*2^0)

  =(0*128) + (1*64) + (1*32) + (0*16) + (0*8) + (0*4) + (1*2) + (1*1)

      =0 + 64 + 32 + 0 + 0 + 0 + 2 + 1

         = 64 + 32 +3

             =99

Answer:

f(x)=x+3

Step-by-step explanation:

hope this helps

Answer:

200 mph/321 km/h if the track is 1 mile long and 100 mph/160 km/h if the track is 2 miles long

Step-by-step explanation:

Answer:

A. 4x+13

Step-by-step explanation:

distribute the 4

(4x+20) -7

4x+13

Answer:

A

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

270/45=6

Answer:

1 minute = 6 calories burned

Step-by-step explanation:

270 ÷ 45 = 6

Answer:

2x = 2 × 12 = 24 24 =2x 24-6=18

3y = 3 × 2 = 6 6 =3y

2x = 2×1 = 2 2 =2x 2+0=2

y = 0 0 = y

Step-by-step explanation:

I'm not sure how the question is mentioned in the test but from my point of view I got this not sure how the it is explained in your nest im only 11 so yeh. sos if its wrong

Answer:

y = -4

x = 3

Step-by-step explanation:

I will be using the elimination method to solve this:

Begin by times -1 to the bottom equation.

[tex]2x-3y=18[/tex]

[tex]-2x-y=-2[/tex]

Add them together

[tex]0x-4y=16[/tex]

ignore the 0x and divide -4 to both sides

[tex]\frac{-4y}{-4} =\frac{16}{-4}[/tex]

y = -4

Plug y back into one of the two original equations

[tex]2x-3(-4)=18[/tex]

multiply -3 and -4 to get +12

[tex]2x+12=18[/tex]

subtract 12 to both sides

[tex]2x=6[/tex]

divide by 2 to both sides

x = 3

Answer:

is b

Step-by-step explanation:

Answer:

Sorry if I'm wrong

Step-by-step explanation:

Polynomials: algebraic expressions that contain any number of terms combined by using addition or subtraction.

Non-polynomials: no square roots of variables, no fractional or negative powers on the variables, and no variables in the denominators of any fractions.

Answer:

81 miles

Step-by-step explanation:

18x4=72 and then you have to add the 1/2 and 1/2 of 18 is 9 so you add 72+9=81 to get the answer. Hope this helps! <3

Answer:

x intercept: (1,0)

y intercept: (0,3)

Step-by-step explanation: Substitute variables for 0 and solve

Answer:

y-intercept: 3

x-intercept: 1

Step-by-step explanation:

To find x-intercept:

1. make y equal to 0, leaving 9x=9

2. divide both sides by 9

3. x=1

To find y-intercept:

1. make x equal to 0, leaving 3y=9

2. divide both sides by 3

3. y=3

Hope this helps!

Answer:

53

Step-by-step explanation:

Hope this help you...but if it's not,im so sorry

Answer:

53

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

In her first 5 days, she reads 80 pages. That means that per day, she reads 16 pages. Then, she had 400 pages left, since 480-80 = 400.

So, you divide 400/16 = 25 days.

Answer:

an expression equivalent to f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3

Step-by-step explanation:

As given ,

f(x) = x³ , g(x) = 9 , h(x) = 2x

Now,

f(2x) = (2x)³ = 2³.x³ = 8x³

⇒f(2x) = 8x³

Now,

[tex]\frac{g(x)}{h(x)} = \frac{9}{2x} = \frac{9}{2}x[/tex]

⇒[tex]3\frac{g(x)}{h(x)} = 3.\frac{9}{2}x = \frac{27}{2}x[/tex]

∴ we get

f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3

Answer:

picking a prime number

Step-by-step explanation:

from 1 - 20 : 20

>6 : 15

<12 : 11

even number: 10

Prime: (2,3,5,7,11,13,17,19) 8

Answer:

Step-by-step explanation:

1 ounce = 28.3 gm

2 ounce =x

x =2*28.3

x = 56.6 gm  

Answer:

(0,1)

(0,-3)

(-2.5.-3)

Step-by-step explanation:

pls give me brainliest

:)

Step-by-step explanation:

If D8=127

Therefore D4 =D8 (because corrosponding angles (forming 'F')

Therefore, the D4=D1(because vertically opposite angle)

There fore D4+D1

i. e 127+127 =254

The option (A) is the correct one

PLZZ GIVE ME BRAINLIEST TAG

THANK YOU........

Answer:

x=26

y=116

Step-by-step explanation:

Answer:

Step-by-step explanation:

x8 y5

Answer:

14x+6

Step-by-step explanation:

Multiply 7x by 2 which gets you 14x and multiply 3 by 2 which is 6.

Answer:77.94

Step-by-step explanation:

Explanation:

Think of 6 + y - 3 as 6 + 1y - 3

y and 1y are the same thing because 1 times any number is that same number.

The coefficient is the number to the left of the variable, so the coefficient is 1.

Answer:

B: 1/6

Step-by-step explanation:

3 divided by 18 = 3 x 1/18 = 3/18 = 1/6 (simplified)

Answer:

x^2+4x-11

Step-by-step explanation:

x^2 - 2x - 6 - (-6x + 5)

x^2-2x-6 +6x - 5

x^2 +4x -11