What does substitute mean logarithms.

Answers

Answer 1

Answer:

Substitution means putting numbers in place of letters to calculate the value of an expression.

Step-by-step explanation:


Related Questions

An investor invested a total of ​$3,000 in two mutual funds. One fund earned a 7​% profit while the other earned a 3​% profit. If the​ investor's total profit was ​$142​, how much was invested in each mutual​ fund?

Answers

Answer:

Step-by-step explanation:

x= fund that got 7%

y= fund that got 3%

x+y=3000

.07x+.03y=142

y=3000-x

.07x+.03(3000-x)=142

.07x+90-.03x=142

.04x=52

x= 1300

x+y=3000

1300+y=3000

y=1700

1300 in the fund that earned 7%

1700 in the fund that earned 3%

Geometry help me!
Extra points!

Answers

Answer:

71

Step-by-step explanation:

PLEASE HELP! NEED IT NOW!
Calculate the circumference and area of a circle with the given measure. Use 3.14 for p.
a. radius = 3 cm
b. diameter = 4 ft

Answers

Answer:

ok

Step-by-step explanation: 3cm i believe

. A coach divided his team into two proups of equal size. 5/8 of the first group drinks at least 2 glasses of water a day. 75% of the second group drinks at least 2 glasses of water a day. What fraction of the team drinks at least 2 glasses of water a day?
a 1/2
b 5/8
c 11/6
d 3/4

Answers

Answer:

b is the answer of the question because it is the only answer

PLS HELPPPP

Answer the following problem using the SOLVE Method
Math Club members are selling Math club members are selling Pi Day T-shirts for $7.50 each. The goal is to
raise $500 by Friday. The figure below shows how much they have raised by
Wednesday. What is the minimum number of T-shirts they must still sell in
order to reach their goal? Explain your reasoning.

Answers

The minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

Let x represent the number of Pi Day T-shirts sold.

They are selling Pi Day T-shirts for $7.50 each, So to raise $500:

7.5x > 500

Dividing through by 7.5:

7.5x / 7.5 > 500 / 7.5

x > 66.7

Hence, the minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

Find out more at: https://brainly.com/question/25285332

Hey can you guys help me pls :))

Answers

Answer:

-d-1<2. => -(-2)-1=1<2. the forth option is true

Of the students in your class, 12% are left-handed. What fraction of the students are left-handed? Are there more right-handed or left-handed students? Explain. Write your answers in simplest form. A comparison of these two fractions is:

Answers

Answer:

3/25

More right handed

3/25 ≤ 22/25

Step-by-step explanation:

There are more right handed people because 88% of them are right handed.

12/100 = 3/25

Singer A and Singer B had the two top-grossing concert tours for a certain year, together generating $334 million in ticket sales. If Singer B took in $26 million less than Singer A, how much did each tour generate?

Answers

195 million dollars

need help with this math question

Answers

Answer:

please resend question

Step-by-step explanation:

¿Cuál es la probabilidad de que una mujer que ha sido vacunada en este lapso de cuatro
meses haya recibido su segunda dosis en octubre ?

Answers

Answer: buddy if you put it in English i can do it I’m a teacher

Step-by-step explanation:

I think of a number. I add 3 then divide it by 2. My answer is 12. Form an equation and solve it to find my number.

Answers

Answer:

21

Step-by-step explanation:

21 plus 3 equals 24 divided by 2 equals 12

Find the values of x and y.

Answers

Answer:

Y = 69

X = 42

Hope this helps!

Find the probability of flipping a coin 3 times and getting all heads.

Answers

Answer:

.13

Step-by-step explanation:


What is the answer

Answers

Answer:

It's a im taking the same test lol

Step-by-step explanation:

I got the answer but I don't know how to show my work, can ya'll tell me what I should write??

Answers

Answer:

one side is 16, the other is 8[tex]\sqrt{3}[/tex]

Step-by-step explanation:

30-60-90 angle triangle always give the following sides

1-[tex]\sqrt{3}[/tex]-2 , which is a-b-c

to label your triangle as such

8= a

other leg =b

hypotenuse = c

so. if a =8, then

c = 8*2 =16

b=8[tex]\sqrt{3}[/tex]

Will give brainliest!

Answers

Answer:

[tex] \frac{1}{2} + \frac{5}{8} [/tex]

[tex] \frac{1 \times 4}{2 \times 4} + \frac{5}{8} [/tex]

[tex] \frac{4}{8} + \frac{5}{8} [/tex]

[tex] \frac{9}{8} [/tex]

[tex]1 \frac{1}{8} [/tex]

Answer:

all, but the bottom

Step-by-step explanation:

They all add up correctly but the one on the bottom makes no sense.---------------------------------------------------------------------------------------------------------------------------

Creflo is 6 years older than Dean.
Raheem is twice as old as Creflo.
The sum of their ages is 34.
Work out the ratio of Dean's age to Creflo's age to Raheem's age.

Answers

C = D + 6
R = 2C
D + C + R = 34

R = 2 (D+6)
R = 2D + 12

D + (D + 6) + (2D + 12) = 34
Add like terms.

4D + 18 = 34
4D = 34 - 18
4D = 16
D = 4

C = D + 6
C = 4 + 6
C = 10

R = 2C
R = 2(10)
R = 20

Write as ratio.
D:C:R
4:10:20

What is the slope of a line with the equation of 2.5x+5y=20

Answers

I’m hoping this helps but the slop will be 25. If I’m wrong then I’m sorry but I got taught a different way on how to do it

The required slope of the given line is 2.5x+5y=20 m = 1/2

Given that,
To determine the slope of the line 2.5x+5y=20.

What is the slope of the line?

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

here,
standard equation of the line,
y = mx + C
Transform the given equation into the equation of the line,
2.5x+5y=20
y = 1/2x + 8
When comparing the above equation with the standard equation of line,
m = 1/2

Thus, the required slope of the given line is 2.5x+5y=20 m = 1/2

Learn more about slopes here:
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If you the numbers 2 and 2, what will the final sum be

Answers

It would be 4 because you add 2 and 2 and you will get 4

12 people sharing an 8 gummy worm pieces how much per person will get equally show two ways

Answers

Divide it into 12 parts or into 66 2/3

which is not a factor of 36​

Answers

Answer:

all numbers to 36 except 1, 2, 3, 4, 6, 9, 12, 18, and 36.

Step-by-step explanation:

5(6a +1) = 7(4x + 3) w/steps

Answers

Answer:

[tex]\frac{15a- 8}{14} = x[/tex]

Step-by-step explanation:

Step 1 - Divide both sides of the equation by 7:

[tex]5(6a + 1) = 7(4x + 3)\\[/tex]

[tex]\frac{5(6a + 1)}{7} = \frac{7(4x + 3)}{7} \\\\\frac{5(6a + 1)}{7} = 4x + 3[/tex]

Step 2 - Subtract 3 from both sides to isolate the 4x:

[tex]\frac{5(6a + 1)}{7} - 3 = 4x + 3 - 3\\\frac{5(6a + 1)}{7} - 3 = 4x[/tex]

Step 3 - Expand equation:

[tex]\frac{5(6a + 1)}{7} - 3 = 4x \\\\\frac{30a + 5}{7} - 3 = 4x[/tex]

Step 4 - Translate -3 into a fraction and add it:

[tex]\frac{30a + 5)}{7} - 3 = 4x\\\frac{30a + 5 + (7 * -3)}{7} = 4x\\\frac{30a + 5 + (-21)}{7} = 4x\\[/tex]

[tex]\frac{30a - 16}{7} = 4x[/tex]

Step 5 - Divide both sides of the equation by 4:

[tex]\frac{\frac{30a - 16}{7}}{4} = \frac{4x}{4}[/tex]

Multiply the two fractions together to simplify:

[tex]\frac{30a - 16}{4 * 7} = \frac{4x}{4}[/tex]

[tex]\frac{30a - 16}{28} = x[/tex]

Step 6 - Simplify by dividing the fraction by 2:

[tex]\frac{(30a \div 2)- ( 16 \div 2)}{28 \div 2} = x[/tex]

[tex]\frac{15a- 8}{14} = x[/tex]

Hope this helps!

Help please I really need it!!!

Answers

Answer:

They are similar

Step-by-step explanation:

If a triangle has the same two angle as another one it means that they are similar triangles. this is because all triangles have 180 degrees shared between all of the angles in them. that is the case for these triangles.

hope this helps!

is 540 or 630 closest to 594

Answers

Answer:

630

Step-by-step explanation:

630 - 594 = 36

594 - 540 = 54

630 is closest to 594

Answer:

630 is closer

Step-by-step explanation:

The number of units separating 540 and 594 is 54; that separating 594 and 630 is 36.  So 630 is closer to 594.

There are 18 girls and 12 boys on the swim team. What FRACTION of the team is made up of boys?

Answers

Answer:

12/30

Step-by-step explanation:

Hope this helps man. Have a GREAT day.

Sincerly, lipor

A 12/30 fraction of the team is made up of boys.

What is a fraction?

A fraction is defined as part of a whole.

The total number of team members is 

12+18=30

The number of boys on the team is 12.

Hence, the fraction of boys o the team is 12/30. 

To learn more about fraction, use the link given below:

https://brainly.com/question/10354322

#SPJ2

In two or more complete sentences describe how to determine if the function, f(x) =3cos(x) is even by looking at a graph

Answers

Answer:

You know that a cosine graph is a sine graph moved to the left by pi/2, therefore, like a linear equation, you need to make the cosine graph 3 times less width.

Step-by-step explanation:

I need help with this question! Whoever is correct, I will give brainliest!

Answers

The system of equations that can be used to model the situation is:

B. [tex]x + y = 27[/tex][tex]y = 3 + \frac{1}{2}x[/tex]

What is a system of equations?

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

Variable x: number of boxes Juan packed.Variable y: number of boxes David packed.

Together they packed 27 boxes, hence:

[tex]x + y = 27[/tex]

David packed 3 more than half the number Juan packed, hence:

[tex]y = 3 + \frac{1}{2}x[/tex]

Hence, the system of equations that models the situation is:

B. [tex]x + y = 27[/tex][tex]y = 3 + \frac{1}{2}x[/tex]

You can learn more about system of equations at https://brainly.com/question/25960609

What is the slope for this table?

Answers

Do u have a graph?
Sheeeeeeeeeeeeeeeeeeeeeeeesh

solve pls brainliest

Answers

Answer:

16 sq mm

Step-by-step explanation:

hope this helps

Hey ,here it is
Can u give me a brainliest answer?

Area of the figure= 2x2 + 2x6
Area of the figure= 4+12
Area of the figure = 16m^2

Write an expression to represent:
Nine less than the quotient of two and a number z.

Answers

Answer:

2 / z - 9

Step-by-step explanation:

Don't worry division always goes before subtraction so you don't need any parenthesis.

Tell me if I'm wrong :)

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