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3 years ago

Solve for x

Mathematics

1 answer:

Anon25 [30]3 years ago

6 0

Answer:

3. x = y - 3

Step-by-step explanation:

You want to move all numbers on the same side of x to the other side with y. Whenever doing this, we have to reverse the operation. In this problem, we have + 3 with x. So we will need to subtract 3 from both sides.

x + 3 = y

x = y - 3

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A submarine is descending to examine the seafloor 2,100 feet below the surface. It took the submarine 8.75 hours to reach the se

marshall27 [118]

Answer:

240 feet per hour

Step-by-step explanation:

Given that:

Submarine is descending for examining the sea floor.

Distance of sea floor from the surface = 2100 feet

Time taken for the descend = 8.75 hours

To find:

The rate of descent in feet per hour = ?

Solution:

Here, we are given the distance traveled in feet and the time taken to travel that distance in hours.

And we have to find nothing but the speed of the submarine.

First of all, let us have a look at the relationship among speed, distance and time.

$Speed = \dfrac{Distance}{Time}$

Putting the values of distance and time.

$Speed = \dfrac{2100}{8.75}\\\Rightarrow Speed = \bold{240\ feet/hr}$

7 0

3 years ago

HELP ME ASAP PLEASE!!

fomenos

Answer:

x>1

Step-by-step explanation:

Make a line put number like

__________|____________________

-4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10

4 0

3 years ago

Please match each function formula with the corresponding transformation of the parent function y= -x^2-1

pishuonlain [190]

Answer:

The answer in the attached figure

Step-by-step explanation:

we have the parent function

$y=-x^{2}-1$

case 1) Reflected across the x-axis

we know that

The rule of the transformation is

(x,y)------> (x,-y)

$y=-(-x^{2}-1)$

$y=x^{2}+1$

case 2) Reflected across the y-axis

we know that

The rule of the transformation is

(x,y)------> (-x,y)

$y=-(-x)^{2}-1$

$y=-x^{2}-1$

case 3) Translated left by 1 unit

we know that

The rule of the transformation is

(x,y)------> (x-1,y)

$y=-(x+1)^{2}-1$

case 4) Translated right by 1 unit

we know that

The rule of the transformation is

(x,y)------> (x+1,y)

$y=-(x-1)^{2}-1$

case 5) Translated down by 1 unit

we know that

The rule of the transformation is

(x,y)------> (x,y-1)

$y=-(x)^{2}-1-1$

$y=-(x)^{2}-2$

case 6) Translated up by 1 unit

we know that

The rule of the transformation is

(x,y)------> (x,y+1)

$y=-(x)^{2}-1+1$

$y=-(x)^{2}$

8 0

3 years ago

Question: a=-4,(3,0),(-8,0)

s2008m [1.1K]

Answer:

the y intercept are 0,0 the x intercepts are -8 '3

Step-by-step explanation:

remember solpe equal rise over run an m = x2 - x1

over

y2 - y1

8 0

3 years ago

Gillian purchased 25 books at the library book sale. each hardcover book cost $1.50, and each paperback book cost $0.50. gillian

Sindrei [870]

H + p = 25
1.50 h + 0,50 p = 26.50
___________________
p = 25 - h
1.50 h + 0.50 ( 25 - h ) = 26.50
1,50 h + 12.50 - 0.50 h = 26.50
h = 26.50 - 12.50
h = 14
p = 25 - 14
p = 11
Gillian purchased 14 hardcover books and 11 paperback books.

3 0

4 years ago