The density of ice is:

· less than that of water

· equal than that of water

· greater than that of water

The expression f - 5(2f – 3) is equivalent to two other expressions, option (a) -11f-3 and option (b) -11f + 15.

In mathematics, an expression is a combination of symbols, operated on by certain mathematical operations to create a numerical value or a function.

To understand why this is the case, let's break down the expression.

The first part of the expression is just the variable f, so that is unchanged. The second part involves the multiplication of -5 and (2f – 3).

To evaluate this part, we need to use the order of operations. First, we multiply -5 and 2f and get -10f.

Then, we subtract 3 from this result and get -11f.

Therefore, the expression f - 5(2f – 3) is equivalent to -11f-3 and -11f + 15.

Therefore, the correct options are both (a) and (b).

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Complete Question:

Which expressions are equivalent to - f - 5(2f – 3)?

Choose all answers that apply:

a) -11f-3

b)-11f + 15

c) None of the above​

To find the measure of angle BOC, set the expressions for m∠AOD and m∠BOC equal and solve for x. Then substitute the value of x back into the expression for m∠BOC to find its measure, which is 30°.

To find the measure of angle BOC, we can set the expressions for m∠AOD and m∠BOC equal to each other and solve for x.

7x - 5 = 3x + 15

Subtract 3x from both sides: 4x - 5 = 15

Add 5 to both sides: 4x = 20

Divide both sides by 4: x = 5

Now that we know x = 5, we can substitute it back into the expression for m∠BOC to find its measure.

m∠BOC = (3x + 15)° = (3*5 + 15)° = 30°

Therefore, the measure of ∠BOC is 30°, which corresponds to option B.

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Answer:

(2, -4)

Explanation:

When we reflect a point across the x-axis, we change the coordinates as follows:

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

Then, the image of the point (2, 4) reflected across the x-axis is:

(2, 4) ------> (2, -4)

Answer:

(1/3)x + 3 >= 3

<=> (1/3)x >= 0

<=> x >= 0

=> The only value from set satisfies, that is 0.

Hope this helps!

:)

Answer:

0

Step-by-step explanation:

⅓x + 3 》3

⅓x 》0

x 》0

There are 52 cards in the deck.

Picking the 6 of spades or 9 of clubs are two of the possible cards you could pick.

Your probability is 2/52 or 1/26 or 3.8461538461538%.

Answer:

r = ±4.

Step-by-step explanation:

The general form of a quadratic equation is ax^2 + bx + c = 0, where a, b, and c are constants. To write the equation 2r^2 - 32 in this form, you can subtract 32 from both sides to get 2r^2 - 32 = -32, and then divide both sides by 2 to get r^2 - 16 = -16. Finally, you can add 16 to both sides to get r^2 = 0, which is the standard form of a quadratic equation.

So, the equation 2r^2 - 32 = 0 can be written as the quadratic equation r^2 = 16, which has two real roots, r = ±4.

Answer:

Part a:  a) (-1, 14) and b) (-2, 10)

Part of b:  Equation of the line:  y = 4x + 18

Step-by-step explanation:

Part a Step 1:  Find the equation of the line in slope-intercept form:

The general equation of the slope=intercept form is:

y = mx + b, where

We can plug in (-3, 6) for (x, y) and 4 form to find b, the y-intercept of the line:

6 = 4(-3) + b

6 = -12 + b

18 = b

Thus, the equation of the line is y = 4x + 18

All the points in a) are in (x, y) form.  Thus, we can plug in each x value and see that we get the corresponding y-value to see which points we'd also find on the line:

Checking (-1, 14) for (x, y):

14 = 4(-1) + 18

14 = -4 + 18

14 = 14

Thus, (-1, 14) lies on the line.  Therefore, a) is one of our answers.

Checking (-2, 10) for (x, y):

10 = 4(-2) + 18

10 = -8 + 18

10 = 10

Thus, (-2, 10) lies on the line.  Thus, b) is also one of our answers.

Checking (0, 0) for (x, y):

The only line that passes through (0, 0) is y = x as (0, 0) is the origin and only y = x passes through the origin.  Thus, (0, 0) is not one of our answers.

Checking (1, 14) for (x, y):

A linear function has a constant slope and will never pass through the same y-coordinate twice.  Furthermore, for any function to be classified a function, every x-coordinate can only be paired to one y-coordinate.   Thus, since we've already determined that (-1, 14) lies on the line, we know that (1, 14) can't and doesn't lie on the line.

Checking (2, 10) for (x, y):

Similarly, since we already found that (-2, 10) lies on the line, we know that (2, 10) also can't and doesn't lie on the line.

Part b:

We found in part a that the equation of the line is y = 4x + 18

Answer:

271 prints.

Step-by-step explanation:

So to answer the question, we need to first write a formula to find the answer.

We know that the starting price per month is 6.95 dollars.

The full price is 17.79 dollars.

So we can start this off by writing:

17.79=6.95

Now, every time Jim prints, he charges 0.04 dollars. This will add to the orginal cost, which is 6.95. And remember this isnt a single payment, but a payment that varies depending on the amount of paper, p. So we can write this as:

17.79=6.95+0.04p

6.95 wont ever change, hense why it doesnt have a variable. 0.04 however, varies depending on the amount of paper, and thats why we included the variable p.

These two values combined make 17.79, hense why it is on the opposite side of the equals sign.

So, now we need to find how many papers, p, were printed.

To find this, lets just take our equation, and solve for P like an ordinary problem:

17.79=6.95+0.04p

So first off, lets subtract the 6.95 from both sides, because that iscolates the 0.04p, which contains the variable.

Now we have:

10.84=0.04p

Now, we could divide both sides by 0.04.

But remember, the whole point of doing this is to make 0.04p into 1p.

So another way of doing this is multiplying the 0.04 by 25, since 0.04*25=1.

So lets multiply both sides by 25:

10.84*25 is 271.

Since 10*25 is 250

And

.84*25 is 21.

So now we know:

271=1p

So 271 is your answer!

Hope this helps!

The equation that can be used to find the number of prints, p, is $17.79 = $6.95 + $0.04p and Jim ordered 271 prints last month.

An equation is an expression that shows the relationship between two or more numbers and variables.

We can write an equation to represent the total cost that Jim was charged by the website for last month's prints, p to represent the number of prints he ordered:

Total cost = Monthly fee + Cost per print x Number of prints

Using the values given in the problem:

$17.79 = $6.95 + $0.04p

To solve for p, one side of the equation. First, we can subtract $6.95 from both sides:

$10.84 = $0.04p

Then, we can divide both sides by $0.04:

p = 271

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\( \huge \purple{\tt{Answer:}} \)

\( \sf{\sqrt{36}} = \sf{6} \)

Answer:

√36=6

Step-by-step explanation:

it's can also be understood by 6×6=36

To determine an expression for matrix A given the equation 2A - B = 5(A + 2B), we need to rearrange the equation and isolate A. By expanding the equation and rearranging terms, we find that A = -3B/3.

Hence, the expression for matrix A is A = -B.

Given the equation 2A - B = 5(A + 2B), we can start by expanding it:

2A - B = 5A + 10B

Next, we can rearrange the equation to isolate A:

2A - 5A = 10B + B

Combining like terms:

-3A = 11B

Now, to find the expression for matrix A, we divide both sides of the equation by -3:

A = -B/3

Therefore, the expression for matrix A is A = -B. This means that matrix A is equal to negative one-third times matrix B.

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The graphs of quadratic functions are:

B, D, and F.

The graph of a quadratic function is a parabola. This is, a shape like an "U", such that the arms extend as it goes up/down.

From the given options, the ones that are parabolas are:

B: We can see a parabola that opens downwards.

C: We can see a parabola that opens upwards.

F: we can see a parabola that opens upwards.

So these 3 are the correct options.

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Answer:

(6, - 5 )

Step-by-step explanation:

Given a point (x, y ) on the function then the corresponding point on the inverse is (y, x )

Given

(- 5, 6 ) lies on h(x) , then

(6, - 5 ) lies on \(h^{-1}\) (x)

Answer:

Step-by-step explanation:

It’s c

The amount that James left has left after paying his friend 10% is; $80.325

We are told that James and his friend both earn $8.5 per hour. Thus;

Amount earned by James per hour = $8.5

Amount earned by the friend per hour = $8.5

Total time James works in his first week = 10 ¹/₂ hours

Now, James agreed to pay his friend 1/10 of his salary

Thus, amount that James earned is;

10.5 * 8.5 = $89.25

Thus, amount he has left after paying his friend 10% is;

(100% - 10%) * $89.25 = $80.325

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False, the expressions 2x − 3(x − 4) = 5x + 12 are not equivalent

The expressions are simplified and if the value of both are equal then they are said to be equivalent

Simplifying 2x − 3(x − 4)

= 2x - 3x + 12

= - x + 12

since   2x − 3(x − 4) = - x + 12 ≠ 5x + 12 the expression is said not to be equivalent

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Answer:

1 feet

Step-by-step explanation:

15-14

Answer:

Step-by-step explanation:

Take 17 away from 1:00 = 12:43

Take 17 away from 1:43 = 1:26

Take 17 away from 2:26 = 2:09

Take 17 away from 3:09 = 2:52

There we are: at the time which the watch says now.

Now let's see what the correct time should be:

at 12:43 it is really 1:00

at 1:26 it is really 2:00

at 2:09 it is really 3:00

at 2:52 it is really 4:00

However, it says the watch stopped 6 hours ago meaning that the time should be 10:00 as 4 + 6 = 10.

Answer:

D

Step-by-step explanation:

the best answer may be D because 9/3 =3 3×5=15

Answer:

x = 3

Step-by-step explanation:

2x - 6 = 0 ( add 6 to both sides )

2x = 6 ( isolate x by dividing both sides by 2 )

x = 3

Answer:

I think it’s p(t)=10t-400

Answer:

t(p) = 10p-400

Step-by-step explanation:

Answer:

a is possible

b is not possible

c is possible

Answer:

14:12

Step-by-step explanation:

Answer:

After entering a time in 24-hour format, this calculator lets you add and subtract a period to give a new time, also in 24 hour format. The 24 hour time format is also known as "military time".

For example, you could enter the time 15:00:00 (3 pm), then add 70 seconds to it which would give 15:01:10 ( 3:01 and 10 seconds pm).

Answer:

11 and 13

because prime number is the number which can be factorised by 1 or itself

Answer:

B. 11 and D. 13 because they are odd primes

The degree of the polynomial is 9

Algebraic expressions are simply described as expressions that are composed of terms, variables, constants, coefficients, and factors.

They are also made up of some mathematical operations, such as;

To determine the degree of a polynomial which is also an example of algebraic expressions, we need to take note of the sum of the exponents.

From the information given,we have that

4q^2rs^6

The degree would be;

= 2 + 1 + 6

Add values

= 9

Hence, the value is 9

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The complete question:

Find the degree of this polynomial. 4q^2rs^6

The given equation is

y = - 4x/7 - 4

The slope intercept equation is expressed as

y = mx + c

m represents slope

By comparing both equations,

slope = - 4/7

If two equations are parallel, it means that they have the same slope. Looking at the given options, for the last option,

4x + 7y = - 14

7y = - 14 - 4x

7y =

Answer:

4x + 7y = -14

Step-by-step explanation:

Parallel lines have same slope.

         Write each equation on y = mx + b form.

  4x + 7y = -14

         7y = -4x - 14

     Divide the entire equation by (7)

          \(\sf \dfrac{7}{7}y=\dfrac{-4}{7}x -\dfrac{14}{7}\\\\y = \dfrac{-4}{7}x-2\)

So, the line 4x + 7y = -14 has same slope as the mentioned equation.

4x + 7y = -14 is parallel to the given line.