For each equation, solve for y

Answer: B)

Step-by-step explanation:

THEY TELL THE RELATIVE AGE OF THE ROCK IN WHICH THEY OCCUR.

Answer:

[tex]a^{m-n}[/tex]

Step-by-step explanation:

If we have the expression [tex]m^a \div m^n[/tex], we can use exponent rules to simplify this.

Exponent rules say that [tex]x^a \div x^b = x^{a-b}[/tex]. In this case, x is a, a is m and b is n, so the same rule applied here.

So  [tex]a^m \div a^n[/tex] will be equal to [tex]a^{m-n}[/tex].

Hope this helped!

Answer:

The last table with x and y values:

x       y

40    60

160   15

200   0

is the correct table

Step-by-step explanation:

Notice that the x-value 40 appears in all four tables, so let's use it according to the piece-wise function definition to decide which table can be the true one.

Notice that from the function's description, when x = 40 the function that should be used is (its domain includes 40 according to: [tex]40\leq x\leq 200[/tex] ) : [tex]f(x)=-\frac{3}{8} x+75[/tex],

which therefore gives : [tex]f(40)=-\frac{3}{8} (40)+75= -15+75=60[/tex]

therefore, we know that the only table that shows a y-value of 60 associated with x=40 is the last table. We should check that the other two pairs are also correct before deciding for it:

Is f(160) = 15 , and is f(200) = 0 according to the function's definition?

Let;s calculate f(160) (for which we need to use again the second function given which is valid for x values such that: [tex]40\leq x\leq 200[/tex]

[tex]f(160)=-\frac{3}{8} (160)+75= -60+75=15[/tex]

so, this pair is also correct.

Now the last check (for x = 200):

[tex]f(200)=-\frac{3}{8} (200)+75= -75+75=0[/tex]

which also checks with the values in the given table.

Answer:

16

Step-by-step explanation:

As per table we can conclude the function:

So for x = 4 we get:

Correct answer choice is the last one

Answer:

16

Step-by-step explanation:

was correct.

Answer:

Step-by-step explanation:

A proportion can be written a number of ways. Here, we're asked for a specific ratio. Ratios are generally written using a colon (:) or a division symbol (/ or ÷). Here, the cable bill must be computed from the amounts of the other portions of the bill. That computation lends itself to being written in different ways. The point of the exercise is unclear, so the desired 'three different ways' are also unclear.

__

If we assume that the cable TV portion of the bill is separable from the package, it can be written as ...

  cable bill = $90 -35 -14 = $55 -14 = $41

So, the ratio of internet to cable bills can be written as any of ...

  internet : cable = 35 : (90 -35 -14)

  internet : cable = 35 : (55 -14)

  internet : cable = 35 : 41

  internet / cable = 35 / (90 -35 -14)

  internet / cable = 35 / (55 -14)

  internet / cable = 35 / 41

__

Of course, the computation of the cable bill can be accomplished other ways, so that expression could be any of

  cable bill = 90 -49 = 76 -35

Then you could have ...

  internet : cable = 35 : (90 -49)

  internet / cable = 35 / (76 -35)

Answer:

tbh i would say 1/8 in exact form

Answer:

Use a graphing calc.

Step-by-step explanation:

On the graph, use (0, 0) and (2, 5) to graph the function.

Answer:

x = 30

Step-by-step explanation:

x/5 + 1 = 7

subtract 1 from each side

x/5 + 1-1 = 7-1

x/5 = 6

Multiply each side by 5

x/5 *5 = 6*5

x = 30

Answer:

x = 2

Step-by-step explanation:

The length of bottle G in cm is 5x + 12

The length of bottle H in cm is 3x + 16

The bottles are of equal length, so set them equal to each other to solve for x:

5x + 12 = 3x + 16

2x = 4

x = 2

Answer:

x=-4 or x=9

Step-by-step explanation:

Either factor can be 0 for the result to be 0.

Hence you can solve x+4=0 or x-9=0 with above answers.

Answer:

x(square) - 5x -36 = 0

sorry if its wrong

Answer:

15/26

Step-by-step explanation:

There are 52 cards in a deck. A deck of cards contains 4 queen cards and 26 red cards. 30/52 simplified is 15/26.

Answer:

28/52, simplified is 14/26. The latter is the answer the questionnaire is probably looking for but if a human is marking it it doesn't hurt to write both.

Step-by-step explanation:

There are 26 cards that are red in a deck, plus 4 queens, minus the 2 queens that are already red.

Answer:

π (Pi) is a mathematical constant.

Step-by-step explanation:

The digit π is a mathematical constant. It is interpreted as the ratio of a circle's perimeter to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is roughly identical to 3.14159.

Answer:

A ≈ 47.759 cm²

Step-by-step explanation:

A = πr²

A = (3.14)(3.9)²

A = (3.14)(15.21)

A ≈ 47.759 cm²

Answer:

1734

Step-by-step explanation:

add them

Answer:

the answer to this question is 1734

Answer:

x=1

Step-by-step explanation:

-2x+4=1-4x-3

↦-2x+4x=1-3+4

↦2x=2

↦x=2/2

↦x=1

.°. x = 1

Answer:

[tex] - 2x + 4 = 1 - 4x - 3[/tex]

Firstly take all numbers with variable to L.H.S

and Take all numbers to R.H.S

[tex] - 2x - 4x = 1 - 3 - 4[/tex]

Now solve the equation we get our answer

[tex]-6x = -6[/tex]

Take -6 to the R.H.S and divide -6 by -6

[tex]x = 1[/tex]

1 is ur answer mate

Hope it helps

Answer:

Ok, first we have the relation:

Speed = Distance/Time.

Here we have:

Distance = 24m

Time = 87 mins

Speed = 24m/87mins = 0.279 m/min.

Now, in 6 minutes, the distance moved will be (remember that the movement is downwards)

D(6min) = (0.279m/min)*6min = 1.66 m.

So in 6 minutes, it moves 1.66 meters down, if the initial position is 10m above the ground, then the position after 6 minutes is:

10m - 1.66m = 8.34m above the ground.

And after 70 minutes, the distance moved is:

D(70min) =  (0.279m/min)*70min = 19.53m

Again, the initial position is 10m above the ground, so after 70 minutes the position is:

10m - 19.53m = -9.53m

So after 70 minutes, the position is 9.53 meters under the ground.

The lift will go 2.76m deep from the surface after 70 mins.

The lift moves down 24m in 87 minutes.

The speed of an object that covers 'd' distance in 't' time is d/t.

So, speed of the lift = 24/87 = 3/29m/min

Distance covered in 6 minutes = 6 * 3/29 = 18/29 m

So, if initially lift is at the surface of the earth, it will go 18/29m below the surface.

Distance covered in 70 minutes = 70* 3/29 =210/29m

So, if the initially lift is at 10 m height, it will go (10-210/29) = -80/29 or 2.76m below the surface of the earth.

Therefore, the lift will go 2.76m deep from the surface after 70 mins.

To get more about time, speed and distance visit:

https://brainly.com/question/26046491

I hope this helps you

for cosine in a right triangle

cos Angle =adiacent/hypotenuse

cosQ=4/5

Answer:

x = 6

Step-by-step explanation:

[tex]\frac{9+x}{3x} = \frac{5}{6}[/tex]

6(9+x) = 5(3x)

6*9 + 6*x = 5*3x

54 + 6x = 15x

54 = 15x - 6x

54 = 9x

x = 54/9

x = 6

check:

(9+6)/(3*6) = 5/6

15/18 = 5/6

Answer:

m = 68 - c ; 35

Step-by-step explanation:

Given the following :

Number of blocks Tegan needs to make = 68

Number of blocks completed = c

Number of blocks left to make = m

Therefore, the number of blocks 'm' left to make is given by the equation :

(Total number of blocks needed - number of blocks completed) = number of blocks left to make

(68 - c) = m

Equation : m = 68 - c

If completed blocks 'c' = 33 ; number of blocks needed to complete the igloo :

From m = 68 - c

m = 68 - 33

m = 35

Answer:

Equation: m = 68 - c   Answer: 35

Step-by-step explanation:

Tegan needs 68 more blocks for her igloo. The number of blocks she still needs to make depends on c, the number of blocks she completes.

To find the number of blocks she still needs to make, m, we can use the equation m = 68 - c

To find the number of blocks Tegan still needs to make if she completes 33 blocks we can substitute 33 into the equation for c.

m = 68 - c

m = 68 - 33

m = 35

The equation is m = 68 - c

Tegan still needs to make 35 blocks to finish the igloo.

Answer: Nope.

Explanation: In order to combine like-terms, they must all have the same variable. In 3x + 13y + 10, none of them have the same variable, so therefore cannot be combined.

Answer: 1/5

Step-by-step explanation: 2/5 - 1/5 = 1/5. So 1/5 more visitors saw the panda this month.

Answer:

Hey there!

We have: [tex]3(4)(6)^2-4^2[/tex]

This simplifies to: 432-16, or 416

Let me know if this helps :)

Answer:

Step-by-step explanation:

3st² - s²

s = 4 , t = 6

Substitute these values into the above expression

That's

3(4)(6)² - 4²

12(36) - 16

= 432 - 16

Hope this helps you

Answer:

  2√41 ≈ 12.81 units

Step-by-step explanation:

The distance between two points is conveniently found using the distance formula:

  d = √((x2 -x2)^2 +(y2 -y1)^2)

  d = √((-3-5)^2 +(8-(-2))^2) = √(64 +100) = 2√41 ≈ 12.81 . . . units

Answer:

14

Step-by-step explanation:

Simplify the following:

5 - 2×9 + 9^2/3

Hint: | Evaluate 9^2.

9^2 = 81:

5 - 2×9 + 81/3

Hint: | Reduce 81/3 to lowest terms. Start by finding the GCD of 81 and 3.

The gcd of 81 and 3 is 3, so 81/3 = (3×27)/(3×1) = 3/3×27 = 27:

5 - 2×9 + 27

Hint: | Multiply -2 and 9 together.

-2×9 = -18:

5 + -18 + 27

Hint: | Evaluate 5 + 27 using long addition.

| 1 |  

| 2 | 7

+ | | 5

| 3 | 2:

32 - 18

Hint: | Subtract 18 from 32.

| 2 | 12

| 3 | 2

- | 1 | 8

| 1 | 4:

Answer: 14

Answer:

-3, 1

4, -2

Step-by-step explanation:

Answer: b. 51 - 3

Step-by-step explanation:

Given, Easha has 3 less than 5 times the number of quarters (I)  that Isabelle has.

Here I is the number of quarters that Isabelle has.

Then, as per given,

Number of quarters Easha has = 5 ( number of quarters that Isabelle has) -3

= 5I-3

Hence, the  expression shows the number of quarters Easha has is "5I-3"

So the correct option is b.

Answer:

7.28

Step-by-step explanation:

It’s the hypotenuse of a right triangle, so we can use Pythagorean’s Theorem.

2²+7²=C²

4+49=c²

53=c²

c=7.28

Answer:

7.28 to the nearest hundredth.

Step-by-step explanation:

A is (-5, -4) and B is (-3,3)

The distance AB = √ [(-5 - (-3)^2 + (3 - (-4)^2]

= √(4 + 49)

=√53

= 7.2801

Answer:

Brainleist!

Step-by-step explanation:

first obvious thing is the line is positive

it goes up 3 over 2

so its 3/2

positive = 3/2