help pleaseee!!!! I’ll give brainliest
Solve the following logarithmic equation.
A large tank holds 1.9 x 10^7 gallons of oil. How much oil can be stored in 9 tanks. Write your answer in scientific notation.
Answer:
1.71 × 10^8 gallons
Step-by-step explanation:
1.9 × 10^7 = 19,000,000
19,000,000 × 9 = 171,000,000
171,000,000 in scientific notation is 1.71 × 10^8
12 + x - 8 = 3 + 2x
Solve for x
Step-by-step explanation:
I used an online Algebra Calculator to check my answer against to gurantee my answer is 100% correct for you.
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Which set of numbers represents the DOMAIN for the following table below?
X -3 4 6 -12
Y 5 -6 2 0
A
{4,5,6,12}
B
{−12,−3,4,6}
C
{−12,3,4,6}
D
{0,5,−6,2}
Answer:
B. (-12,-3,4,6)
Step-by-step explanation:
The above question is asking the domain
Please help 1/2P-10=15
Answer:
if I'm supposed to solve for P, the answer is 50
Step-by-step explanation:
1/2p-10=15
1/2p=25, subtraction property of equality
p=50, multiplication property of equality
therefore, P is equal to 50
On a map, Delilah is standing at (10, -13). Her friend Pedro is standing at (18, -13). If Delilah walks 8 units left, will she be standing with Pedro? Explain.
Answer:
Yes
Step-by-step explanation:
if she walk 8 to the left she will be at 18-13 which is his location
The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
No,
Delilah is not standing with Petro after she walks 8 units to its left.
The position on the map is not the same.
The coordinates of Delilah and Petro is not the same.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The following coordinates.
Delilah is standing at (10, -13).
Pedro is standing at (18, -13).
Delilah walks 8 units left.
This means,
The coordinates of Dellah will be,
(10, -13) → (10 - 8, -13) = (2, -13)
In order for Delilah to stand together with Pedro both their coordinates must be equal.
Delilah coordinates = (2 , -13)
Pedro coordinates = (18, -13)
Thus,
No,
Delilah is not standing with Petro after she walks 8 units to its left.
The position on the map is not the same.
The coordinates of Delilah and Petro is not the same.
Learn more about coordinates here:
https://brainly.com/question/13118993
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The size of the hermit crab’s shell depends on
the size of the crab. Look at the table below. If a 2-inch hermit crab
grows 1 inch per year, use words to describe a rule that will show
how long a 2-inch crab will grow in x years. Write an expression to
find how large this crab will grow in x years.
Length 2 3 4 5 6 7 8 9 10 11 12 ■
Number of Years 0 1 2 3 4 5 6 7 8 9 10 x
Answer:
i. the length of the of the crab per year is greater than its number of years (x) by 2
ii. length = x + 2
Step-by-step explanation:
i. Given that the size of the hermit crab's shell depends on its size. And it grows 1 inch in a year, then it can be deduced that;
the length of the of the crab per year is greater than its number of years (x) by 2.
ii. To show how large the crab will grow in x years, the required expression that would describe the relationship between the length and years (x) of the crab is:
length = x + 2
lim x → 0, 1, 2,.., x,....
where x is the number of years
Therefore in x years, the length of the crab would be equal to x + 2.
Saba's dance class is 3 miles from her home. Her music class is 12 miles from her
home. Write an equation that shows the number of times farther Saba's music
class is from her home than her dance class is from her home.
Answer:
The number of times Saba's further is 4, because 12/3 = 4
Step-by-step explanation:
Helppppppppppppppppp ASAP
Answer:
Option c - 2x + 1
Step-by-step explanation:
6x^2 - 10x +3x - 5
2x(3x-5) +1 (3x - 5)
(2x+1) (3x-5)
For the following equation, complete the given ordered pairs.
3x + y = 10 (__, 1), (2, __)
A.
(10, 1), (2, 12)
B.
(0, 1), (2, 3)
C.
(3, 1), (2, 4)
D.
(2, 1), (2, 5)
PLEASE HELP ME!!!!!!!!
Answer:
C. (3,1) (2,4)
see attached
I need help on this question
Answer: Capitalism
Step-by-step explanation:
hope it helps
Find the value of x. Then find the length of the segment or angle indicated.
8x-27 6x+1
Answer:
58
Step-by-step explanation:
The length of the base of an isosceles triangle is x. The length of a leg is 3x
- 7. The perimeter of the triangle is 63. Find x. *
20
22
11
12
Answer:
Option C: 11 is the correct answer.
Step-by-step explanation:
Given that:
Length of base of isosceles triangle = b = x
The length of leg of triangle = a = 3x-7
Perimeter of triangle = 63
Perimeter of an isosceles triangle is given by
Perimeter = 2a + b
Putting values in the formula
63 = 2(3x-7) + x
63 = 6x-14+x
63 = 7x-14
63+14=7x-14+14
77=7x
7x=77
Dividing both sides by 7
[tex]\frac{7x}{7}=\frac{77}{7}\\x=11[/tex]
The value of x is 11.
Hence,
Option C: 11 is the correct answer.
Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation: (-3,-2) y=x+2
Given :
A point ( -3 , -2 ).
An equation of a line, y = x + 2.
To Find :
An equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation.
Solution :
Let, equation of new line is :
y = mx + c ....1)
Here, m and c are slope and intercept respectively.
We know, product of slope of two line is -1 :
m( 1 ) = -1
m = -1
It is also given that point ( -3,-2 ) passes through this point.
Putting value of this point and slope in equation 1), we get :
[tex]-2 = (-1)\times ( -3 ) + c\\\\c = -2 -3\\\\c = -5[/tex]
Therefore, the equation of line is : y = -x -5 .
A student took two national aptitude tests. The national mean and standard deviation were 325 and 100, respectively, for the first test, and 50 and 6, respectively, for the second test. The student scored 425 on the first test and 65 on the second test. Use z-scores to determine on which exam the student performed better relative to the other test takers. first exam
Answer:
Second test
Step-by-step explanation:
Given that :
FIRST TEST
Mean (m) = 325
Standard deviation (s) = 100
Score (x) = 425
SECOND TEST
Mean (m) = 50
Standard deviation (s) = 6
Score (x) = 65
Express both scores as standardized scores:
Zscore = (x - m) / s
First Score :
Zscore = (425 - 325) / 100
Zscore = 100/100 = 1
SECOND SCORE :
Zscore = (65 - 50) / 6
Zscore = 15 / 6 = 2.5
Student performed better on second test :
Zscore second > Zscore first
Isaiah already has 16 dollars. Every hour (x) that he works at the bakery, he earns another 4 dollars (y). How many total dollars will Isaiah have after 13 hours of work?
What is the elevation of the surf shop?
Answer:
The elevation of the surf shop is 12.8
Step-by-step explanation:
I hope this helps
Pls I need help ASAP!
Mr.Roberson buys 18 quarts of milk each week for his 5 children. How many gallons of milk does this equal?
Answer:
4 and a half gallons of milk
Step-by-step explanation:
4 quarts = 1 gallon
16 quarts = 4 gallon
18 quarts = 4 1/2 gallons
TRIGNOMETRY TEST DUE AT 10:02 PLZ HELP ME I DONT WANT TO FAIL THIS ONE!!! PLEASE SOMEONE MATH EASY HELP 123 ADDING SUBTRACTING
Answer:
7. 33 degrees
8. 17 degrees
9. 41 degrees
10. 75 degrees
This is all i can do I'd have to look up how to do 11-13
I hope this helps a little
Step-by-step explanation:
Suppose that 2% of produced computers by a company have defects, and defects occur independently of each other. a) Find the probability of exactly 2 defective computers in a shipment of 100 computers. b) The probability that a computer support specialist needs to test at least N computers in order to find one defective computer is 0.6676. Find N.
Answer:
a) P(exactly two defectives) = 0.2734
b) N [tex]\simeq[/tex] 55
Step-by-step explanation:
From the given information:
P(exactly two defectives) = P(X =2) = [tex]^{100}C_2 \times ( 0.02)^2 \times(1-0.02)^{100-2}[/tex]
[tex]= \dfrac{100!}{2!(100-2)!} \times ( 0.02)^2 \times(0.98)^{98}[/tex]
[tex]= 4950 \times 4 \times 10^{-4} \times 0.1380878341[/tex]
= 0.2734
Thus, P(exactly two defectives) = 0.2734
b)
To find:
P(X ≥ 1 )
let X be the random variable that obeys a binomial distribution, X represents the number of defectives,
∴
[tex]X \sim B ( N, 0.02)[/tex]
[tex]P(X \ge 1 ) = 1 - P(X < 1) \\ \\ P(X \ge 1 ) = 1 - P(X = 0)[/tex]
[tex]0.6676 = 1 - ^NC_0 \times (0.02)^0 (0.98)^N[/tex]
[tex]0.6676 = 1 - (0.98)^N[/tex]
[tex](0.98)^N = 1 - 0.6676[/tex]
[tex](0.98)^N = 0.3324[/tex]
N log (0.98) = log (0.3324)
[tex]N = \dfrac{log \ 0.3324}{log \ 0.98}[/tex]
N = 54.51824841
N [tex]\simeq[/tex] 55
Jessica completed 21 math problems In 14 minutes at this rate how many math problems could complete in 30 minutes
Answer
45
Explanation
What is my perfect crime? I break into Tiffany's at midnight. Do I go for the vault? No, I go for the chandelier. It's priceless. As I'm taking it down, a woman catches me. She tells me to stop. It's her father's business. She's Tiffany. I say no. We make love all night. In the morning, the cops come and I escape in one of their uniforms. I tell her to meet me in Mexico, but I go to Canada. I don't trust her. Besides, I like the cold. Thirty years later, I get a postcard. I have a son and he's the chief of police. This is where the story gets interesting. I tell Tiffany to meet me in Paris by the Trocadero. She's been waiting for me all these years. She's never taken another lover. I don't care. I don't show up. I go to Berlin. That's where I stashed the chandelier.
Meryl needs to cut down 10.5 trees for every 555 cabins she builds.
Answer:
6.3 trees.
Step-by-step explanation:
We have been given that Meryl needs to cut down 10.5 trees for every 5 cabins she builds.
Let us find the number of trees Meryl needs to cut down to build 1 cabin by dividing 10.5 by 5.
Now let us multiply 2.1 by 3 to find the number of trees Meryl needs to cut down to build 3 cabins.
Therefore, Meryl needs to cut down 6.3 trees, if she builds 3 cabins.
The midpoint of \overline{\text{AB}}AB is M(-6, -4)M(−6,−4). If the coordinates of AA are (-4, -3)(−4,−3), what are the coordinates of BB?
Answer:
The coordinates of B is (-8,-5).
Step-by-step explanation:
The midpoint of line AB is M. The coordinate of M is (-6,-4).
The coordinates of A is (-4,-3)
We need to find the mid point of B.
If M(x,y) is the midpoint of the coordinates (x₁,y₁) and (x₂,y₂). The mid point theorem is used as follows :
[tex]M(x,y)=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})[/tex]
Let the mid point of B is (x₂,y₂). Put (x,y) = (-6,-4), (x₁,y₁) = (-4,-3).
[tex](-6,-4)=(\dfrac{-4+x_2}{2},\dfrac{-3+y_2}{2})\\\\\dfrac{-4+x_2}{2}=-6\ \text{and}\ \dfrac{-3+y_2}{2}=-4\\\\-4+x_2=-12\ \text{and}\ -3+y_2=-8\\\\x_2=-12+4\ \text{and}\ y_2=-8+3\\\\x_2=-8\ \text{and}\ y_2=-5[/tex]
So, the coordinates of B is (-8,-5).
The coordinates of B are (-8, -5).
Given that,
The midpoint of AB is M(-6, -4). If the coordinates of A is (4,-2),
We have to determine,
The coordinates of B.
According to the question,
The midpoint of line AB is M. The coordinate of M is (-6,-4).
And the coordinates of A is (-4,-3)
If M(x, y) is the midpoint of the coordinates (x₁, y₁) and (x₂, y₂). The midpoint theorem is used as follows :
[tex]M(x, y) = ( \dfrac{x_1+x_2}{2}, \dfrac{y_1+y_2}{2})[/tex]
Let the midpoint of B be (x₂, y₂).
M (x, y) = (-6,-4), and (x₁, y₁) = (-4,-3).
[tex]M(-6, -4) = ( \dfrac{-4+x_2}{2}, \dfrac{-3+y_2}{2})\\\\[/tex]
Solving the equation for the co-ordinate B.
[tex]\dfrac{-4+x_2}{2} = -6\\\\-4 + x_2 = -6 \times 2\\\\-4 + x_2 = -12\\\\x_2 = -12+4\\\\x_2 = -8[/tex]
And,
[tex]\dfrac{-3+y_2}{2} = -4\\\\-3 + y_2 = -4 \times 2\\\\-3 + y_2 = -8\\\\y_2 = -8 + 3\\\\y_2 = -5[/tex]
Hence, The required coordinates of B are (-8, -5).
To know more about Geometry click the link given below.
https://brainly.com/question/20261153
Andy drove 840 miles in 12 hours. How much miles can he drive per hour?
Answer:
70
Step-by-step explanation:
840 / 12 = 70
How to post a answer so people can see it
Could someone help this is hard to me
Answer:
[tex]\frac{4}{8}[/tex] = [tex]\frac{x-2}{x+3}[/tex] ( set the two triangles proportional to each other)
4(x+3)= 8(x-2) (Do the distributive property)
4x+12=8x-16
-4x= -28
x=7
a hotel provides free parking for guests and charges 225 per night passion y equals total cost to stay at the hotel Annex equals number of night
help pls important!!!!!!!!!
Answer:
y = 225(x)
Step-by-step explanation:
Given:
Cost per night = 225
Total cost = y
Number of nights = x
Computation:
Total cost = (Cost per night)(Number of nights)
So,
y = 225(x)
Lin Ying belongs to an athletic club. In 800 m races her times are normally distributed with mean 128 seconds and standard deviation
4 seconds.
(a) What is the probability of her time in an 800 being between 120 and 130 seconds?
(b) What time will she beat in 70% of her races?
Julie belongs to the same club. In 800 m races 85% of her times are less than 140 seconds and 70% are less than 135 seconds. Her times are normally distributed.
(c) Find the mean and standard deviation of Julie's times, each correct to two significant figures.
(d) What is the probability that in an 800 m race Lin Ying will beat Julie?
(e) The club has to choose one of these two athletes to enter a major competition. In order to qualify for the final rounds it is necessary to achieve a time of 114 seconds or less in the heats. Which athlete should be chosen and why?
Answer:
Nine of the times for the first race were at least 16 seconds
Step-by-step explanation:
Here we have from the scatter plot, the times are given as
Time Frequency
19 2
18 2
17 2
16 3
15 1
Therefore, total number of times that are above 16 seconds in the first race is
3 + 2 + 2 + 2 = 9
Therefore, the first option is correct
Answer:
Step-by-step explanation:
The answer is below. Plesetake a look and it will help you
I need help?...........
Answer:
J. 2(×-3)=22...........
Answer:
J. 2( x - 3 ) = 22
Step-by-step explanation:
All you need to do, is substitute the x with 14
2 ( x - 3 ) = 22
2 ( 14 - 3 ) = 22
use PEMDAS
2 * 14 - 2* 3 = 22
28 - 6 = 22
22 = 22
So this problem is the correct one
Hope this helped!
P.S Do you want me to show you the work for the others so you can see how I know there wrong?
