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elena55 [62]
3 years ago
6

Evaluate log base 16 0.25​

Mathematics
1 answer:
AveGali [126]3 years ago
5 0

Answer:

Step-by-step explanation:

Rewrite log16(0.25)

using the change of base formula.

Exact Form:

log(0.25)log(16)

Decimal Form:

−0.5

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Help with these problems please, DUE T O D A Y !!!! I’ll try to make you guys brainlist who ever answers first
Makovka662 [10]

Answer:

19) n = -14

20) x = 4

21) b= -14

22) x = 2

23) x = -1

24) x = -9

Step-by-step explanation:

19) Use the distributive property to get rid of the parentheses. You will get:    20-4n = 76. So, n = -14.

20) Multiply both sides of the equation by 2 to get: -8 + x = -4. So, x = 4

21) Add 3 to both sides to get: \frac{b}{14} = -1. So, b = -14

22) Use the distributive property to get rid of the parentheses. You will get: -40 - 5x = -50. Then, add 40 to both sides to get: -5x = -10. So, x = 2.

23) Use the distributive property to get rid of the parentheses. You will get: -72 = -64 + 8x. Then, add 64 to both sides to get: -8 = 8x. So, x = -1

24) Add 2 to both sides to get: \frac{x}{3} = -3. So, x = -9

Hope this helps :)

4 0
3 years ago
I need help fast with this question HELPPPP !
Svetradugi [14.3K]

The shape looks like a box with a chunk taken out of it. So, to find the volume of the shape, let us find the volume of the hypothetical "perfect" box and then subtract the volume of the chunk.

Volume of the box = 15x6x12 = 1080 cm³

Volume of the chunk = 10x6x4 = 240 cm³

Volume of weird shape = 1080-240 = 840 cm³

Answer: 840 cm³

4 0
3 years ago
Question is in attached file
Nonamiya [84]

The rate of the passenger train is 81.67 MPH and the rate of the freight train is 66.67 MPH.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

The distance traveled by passenger train = 245 miles

The distance traveled by freight train = 245 miles

The time takes for both trains is the same.

Let's suppose the rate of the passenger train is x and the rate of the freight train is y;

As we know,

Distance = speed×time

245/x = 200/y

200x = 245y

200x - 245y = 0 ..(1)

x = 15 + y ..(2)

Equations (1) and (2) represent the situation.

After solving equations (1) and (2):

\rm x=\dfrac{245}{3}= 81.67\\\\\\\:y=\dfrac{200}{3}=66.67

Thus, the rate of the passenger train is 81.67 MPH and the rate of the freight train is 66.67 MPH.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

5 0
1 year ago
When x=12,y=8 find x when y=12
Naya [18.7K]
X would equal 18 when y equals 12.

Since x equals 12 when y=8, you can write it as 8/12

Then it says when y = 12 what is x, well you divide 12 and 8 to get 1.5 then multiply 12 and 1.5 to get what x equals when y is equal to 12.

Correct me if I am wrong.
8 0
3 years ago
Use IF functions to calculate the regular pay and overtime pay based on a regular 40-hour workweek in cells E5 and F5. Pay overt
g100num [7]

Excel formulas are expressions used to perform computation.

  • The Excel formula to enter in cell E5 is =IF(D5<$B$21,D5,$B$21) * C5
  • The Excel formula to enter in cell E5 is =IF(D5>$B$21,(D5-$B$21) * C5 * $B$22, 0)
<h3 /><h3>The regular pay</h3>

From the complete question, cell B21 represents base work hour

So, we start by checking if the work hour in cell D5 is less than the base work hour in cell B21

If yes, the work hour remains D5; otherwise the work hour is cell B21

The work hour is then multiplied by the rate in cell C5

Hence, the Excel formula to enter in cell E5 is =IF(D5<$B$21,D5,$B$21) *

<h3>The overtime pay</h3>

Here, we start by checking if the work hour in cell D5 is greater than the base work hour in cell B21

If yes, the overtime hour the difference between D5 and B21; otherwise the overtime hour and pay is 0

The over time hour if there is, is then multiplied by the rates in cells C5 and B22

Hence, the Excel formula to enter in cell E5 is =IF(D5>$B$21,(D5-$B$21) * C5 * $B$22, 0)

Read more about Excel formulas at:

brainly.com/question/1285762

3 0
2 years ago
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