log (100) = log (400) - log (4)

Answers

Answer 1

Answer:

log100=log(400)- log(4)

=log(100x4) - log4

=log100 + log4 -log4

= log100

Step-by-step explanation:

log400 = log 100x4 but log ab = log a + log b


Related Questions

Acellus
Corresponding Angles are congruent.
Which angle corresponds with < 2?
4246 4342
4845 44141
«[?]
Enter

Answers

Answer:

<6

Step-by-step explanation:

Corresponding angles have the same matching corner when a transversal line crosses tow straight lines.

Thus, in the diagram given, the angle that has the same matching corner with <2 is the angle that corresponds to <2.

<6 has the same matching corner with <2.

Therefore, <6 corresponds with <2

The volume of a cylinder is represented by the equation V Tarah, where V is the
volume of the cylinder, r is the radius of the base, and h is the height of the cylinder.
Solve the equation in terms of r.

Answers

Answer:

[tex]r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Step-by-step explanation:

The volume of a cylinder is given by :

[tex]V=\dfrac{1}{3}\pi r^2h[/tex] .....(1)

Where

r and h are the radius and the height of the cylinder.

We need to solve the equation of r. Cross multiplying both sides in equation (1).

[tex]3V=\pi r^2h[/tex]

Dividing both sides by [tex]\pi h[/tex]. So,

[tex]\dfrac{3V}{\pi h}=\dfrac{\pi r^2h}{\pi h}\\\\r^2=\dfrac{3V}{\pi h}\\\\or\\\\r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

So, the radius of the cylinder is equal to [tex]\sqrt{\dfrac{3V}{\pi h}}[/tex].

Prove that the following triangles are similar?

Answers

Answer:

You have that:

angle N = angle Z

and

angle ZYX = angle NYM (because they are vertical angles

Since you have two congruent angles, you can say that the two triangles are similar according to the AA Triangle Similarity Postulate.

[tex]1/5(6+3+1)^{2}[/tex]

Answers

Ur answer is 20

Evaluate
6+3+1
10
1/5*10 2

1/5*100

100/5 multiple the #

20

Corey records the temperature in degrees Celsius each morning. At 8am the temperature was 3 degrees below zero. It rose 3 degrees by 10am. Which equation shows the change in temperature from 8am to 10am?

A 3+3=6
B-3+3=0
C-3+3= -6
D-3-3= -6​

Answers

B

It was 3 degrees below so the 3 will be a negative 3. Then by 10 it rose up by 3 so it is a positive 3. So -3+3=0

help!!!!!!!!!!!!!!!!

Answers

If 6 is the longest side, and 4 is the shortest side, then the middle has to be 5.

What is four plus eight

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

you take the number 8 and then you add 4. and you find yourself with the answer 12

Give me the answer please

Answers

a.
|40|= 40 bc the distance from 0 to 40 is 40

b. |-40|= 40 bc the distance from 0 to -40 is 40

absolute value for a negative number will always be the opposite and absolute value for a positive number will still be positive. for example the absolute value of -5 would be 5. the absolute value of 45 would just be 45. does that help?
ANSWERS:
A: 40 because the distance from 0 to 40 is 40
B: 40 because the distance from 0 to -40 is 40

EXPLANATION:
Absolute value will never be negative.
Absolute value only means how far a number is from zero.

SOME OTHER EXAMPLES:
The absolute value of −9 is 9
The absolute value of 3 is 3
The absolute value of 0 is 0
The absolute value of −156 is 156

A line that includes the point (7, 3) has a slope of -6. What is it equation in point-slope form?

Answers

Answer:

Y-3=-6(x-7)

Step-by-step explanation:

Y-y1=M(x-x1)

Y-3=-6(x-7)

Y-3=6x-42

Add 3 to both sides

Y=6x-39

Welp, I gave you slope intercept form and point slope form.

Is the answer above me correct??

Can someone please help me complete the factoring of the polynomial

Answers

(3-5y) is the factored part

The scores on a 100 point exam are normally distributed with a mean of 80 and a standard deviation of 6. A student's score places him between the 69th and 70th percentile. Which of the following best represents his score?

Answers

Answer:

85-89

Step-by-step explanation:

I will give brainliest

Answers

Answer:

Refer the attachment for explanation :

Gretchen has the highest ratio of blue and red marbles.

Hope it helps :)

The circumference of the smaller circle is 20% of the circumference of the larger circle. Find the circumference of the larger circle. Round your answer to the nearest tenth.

Answers

Answer:

92.5

Step-by-step explanation:

ANSWER AND EXPLAIN PLEASE ILL MARK BRAINLIEST!!!!!!!!!!!

Answers

Answer:

x = 1 and y = -2

Step-by-step explanation:

Given that,

2x-3y = 8 ..(1)

4x+3y = -2 ..(2)

Add equation (1) and (2),

2x-3y+4x+3y = 8+(-2)

6x = 6

x = 1

Put the value of x in equation (1).

2-3y = 8

2-8 = 3y

-6 = 3y

y = -2

Hence, the value of x is 1 and that of y is -2.

Please hurry

Which table contains data with a nonproportional relationship?

Do you guys see 4 picture?

Answers

Answer: x

Step-by-step explanation:

Determine if the pairs of expressions below are always equivalent. Prove your answer

A. 4n + 12 and 4 (n +3)

B. m + m 3m and 3m + 2

C. 4x + 8y and 4 (x + 8y)

D. 3 (2t + 2 ) and ( t + 1 ) x 6

E. p + p and p + 7​

Answers

A and D are the right answer

Tom is 10 years younger than Becky. In two years, Becky will be twice as old as Tom. How old is Tom now?

Answers

Answer:

20

Step-by-step explanation:

Answer:

tom is 8 and becky is 18 now

Step-by-step explanation:

in two years becky would be 20 and tom will be 10

hope this helps

The recipe calls for 2 2/4 but jams only have 1/4 how many cups do jams need to measure out 2 2/4 cups of raisins

Answers

Answer:

brainliest

Step-by-step explanation:

she needs altogether 2 2/4.

that is 2 wholes and 2/4 fraction.

if we consider using 1/4 cup, 1 whole is made of four quarter cups.

Therefore 2 wholes require eight quarter cups. then theres a remaining fraction of 2/4 which is equivalent to two quarter cups.

1/4 + 1/4 = 2/4. therefore altogether  8 + 2 = 10 of the 1/4 cups are required for the recipe.

10 of 1/4 cups are needed

The ratio of cats to dogs is 5:4 in Riverside. If there are 20 dogs, how many cats live in Riverside?
Select one:

25

20

30

16

Answers

Answer:

25

Step-by-step explanation:

c to d is 5 to 4

5x5=25

fffff

Answer:

25

Step-by-step explanation:

We need to divide 20 by 4 to see how much 1 equals in this problem.

20÷4=5

5 equals 1

Now we add 5 to 20 because the ratio is 5:4.

20+5=25

Our answer is 25.

Solve the inequality for x= 1 + 2x > -23

Answers

Answer:

x = -12

Step-by-step explanation:

1 + 2x > -23

-1

2x > -24

x < -12

what is 8x5 please help

Answers

Answer:

8x5 equals 40.

Step-by-step explanation:

Answer:

8x5 is 40, hope that helped :)

Please help!! Only correct answers please! (Easy?)

Answers

Answer:

sorry no can't do i have cancer

Step-by-step explanation:

The probability that John will drive to school is 0.36 , the probability that he will ride with friends is 0.11 , and the probability that his parents will take him is 0.53 . He is not allowed to have passengers in the car when he is driving. What is the probability that John will have company on the way to school?

Answers

Answer:

0.64 = 64% probability that John will have company on the way to school

Step-by-step explanation:

John will have company when:

He rides with his friends(0.11 probability).

His parents take him(0.53 probability).

What is the probability that John will have company on the way to school?

0.11 + 0.53 = 0.64

0.64 = 64% probability that John will have company on the way to school

Please help asap pls only 1 question I need to finish pls this is middle school homework

Answers

Answer:

a,d,b,c

Step-by-step explanation:

We wish to modify the cellular telephone coding system in order to reduce the number of errors. In particular, if there are two or three zeroes in the received sequence of 5 bits, we will say that a deletion (event D) occurs. Otherwise, if at least 4 zeroes are received, then the receiver decides a zero was sent. Similarly, if at least 4 ones are received, then the receiver decides a one was sent. We say that an error occurs if either a one was sent and the receiver decides zero was sent or if a zero was sent and the receiver decides a one was sent. For this modified protocol, what is the probability P[E] of an error? What is the probability P[D] of a deletion?

Answers

Solution :

Here, we have 5 trails that corresponds to the 5 times the binary symbol is sent. On each trail, success is said to occur when the binary symbol is received correctly. The probability of a success is p = 1 - q = 0.9 and q = 0.1

Now if the 0 is being transmitted, then the 0 is sent 5 number of times and then we call the decoding a 0 success. Let the repeated transmission are independent. In this case, we have 5 trails. Let each repeated bit the receiver decodes as 1 a success, using the binomial probabilities. We using the [tex]$S_{k,5}$[/tex] to denote an event of [tex]$k$[/tex] successes in the 5 trails, then the probability k are decoded at the receiver is:

[tex]$P[S_{k,5}]=\binom{5}{k}p^k(1-p)^{5-k}$[/tex]

           [tex]$=\binom{5}{k}(0.9)^k(1-0.9)^{5-k}$[/tex]

           [tex]$=\binom{5}{k}(0.9)^k(0.1)^{5-k}$[/tex]    

Here, k = 1, 2, 3, 4, 5

The probability of the transmitted bit to be decoded correctly is:

[tex]$P[C]=P[S_{5,5}]+P[S_{2,5}]$[/tex]

         [tex]$=\binom{5}{3}(0.9)^5(0.1)^{0}+\binom{5}{4}(0.9)^4(0.1)^1$[/tex]

         [tex]$=(0.9)^5+5(0.9)^4(0.1)^1$[/tex]

         = 0.91854

The probability that the deletion occurs is

[tex]$P[D]=P[S_{3,5}]+P[S_{2,5}]$[/tex]

          [tex]$=\binom{5}{3}(0.9)^3(0.1)^{2}+\binom{5}{2}(0.9)^2(0.1)^3$[/tex]

         [tex]$=10(0.9)^3(0.1)^2+10(0.9)^2(0.1)^3$[/tex]

         = 0.081

The probability of an error is

[tex]$P[E]=P[S_{1,5}]+P[S_{0,5}]$[/tex]

          [tex]$=\binom{5}{1}(0.9)^1(0.1)^{4}+\binom{5}{0}(0.9)^0(0.1)^5$[/tex]

         [tex]$=5(0.9)^1(0.1)^4+(0.1)^5$[/tex]

         = 0.00046

Evaluate the expression.

3×2⁴​

Answers

The answer to this equation is 48

Which of the following options have the same value as 96% of 25?
Choose 2 answers:
96
100
• 25
Pro
B
0.96 - 25
Tea
0.96 . 0.25
96 25
100 100
96 - 25

Answers

Answer:

A

Step-by-step explanation:

yyjvgyujjjjuyrcjkoiffffgy

Solve the following system of equations by substitution. Which of the following is the solution?

Answers

The solution is (1,5) because when you plug in your x and y values none of the above answer make sense except (1,5)

Answer:

It is (1,5) :)

find the value of x

Answers

Answer:20

Step-by-step explanation:

the other side is a mirror it would be 20 as well

The ratio of two numbers is 7 to 5. The sum of the numbers is 36. What are the numbers?
A. 26 and 10
B. 18 and 8
C. 21 and 15
D. 14 and 10

Answers

Answer:

Step-by-step explanation:

a/b=7/5

a=7b/5

a+b=36, using 7b/5 for a we have

7b/5+b=36

7b/5+5b/5=36

12b/5=36

12b=180

b=15, and since a=7b/5

a=7(15)/5

a=21

So the numbers are 21 and 15

Answer:

C is the correct answer please like for more

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