calculate the following showing populations the temperature in Johannesburg was 15° it drastically decreased by 17 °c what is the temperature now
Answer:
-2 degrees Celsius.
Step-by-step explanation:
15 - 17 = -2
I need help with this question please.
Answer:
One of them is 2 but I don't know the other one
Step-by-step explanation:
what is the slope line perpendicular to the equation 4x+3y=9
Answer:
m=3/4
Step-by-step explanation:
first, let's put the line 4x+3y=9 from standard form (ax+by=c) into slope-intercept form (y=mx+b)
we have the equation 4x+3y=9
subtract 4x from both sides
3y=-4x+9
divide by 3
y=-4/3x+3
perpendicular lines have slopes that are negative and reciprocal. If the slopes are multiplied together, the result is -1
so to find the slope of the line perpendicular to the line y=-4/3x+3, we can take the slope of y=-4/3x+3 (-4/3) multiply it by a variable (this is our unknown value), and have that set to -1
(m is the slope value)
-4/3m=-1
multiply by -3/4
m=3/4
therefore the slope of the perpendicular line is 3/4
hope this helps!! :)
5 of 10
A fair dice is rolled.
Work out the probability of getting a number more than 4.
Give your answer in its simplest form.
Answer: 1/3
Step-by-step explanation:
numbers more than 4 are: 5, and 6
so 2/6 chance of rolling a number greater than 4
in simplest form this is 1/3
Answer:
number 4 are t is greater
(x+1)^2 = -4
What are the solutions?
Answer:
x = 4i - 1 or
x = 4i + 1
Step-by-step explanation:
(x+1)^2 = -4
x+1 = (+-)4i
x = +-4i - 1
==>
x = 4i - 1 or
x = 4i + 1
will be giving brainliest to the correct one, no links or account will be reported:)
Answer:
x = 38
∠P = 26º
Step-by-step explanation:
The sum of the angle in a triangle is 180
x + (x + 78) + (x - 12) = 180
Combine like terms
3x + 66 = 180
Subtract 66 from both sides
3x = 114
Divide both sides by 3
x = 38
-----------------------
∠P = x - 12
∠P = 38 - 12
∠P = 26º
Answer:
Step-by-step explanation:
(x+78)+(x-12)+x=180
3x+66=180
3x=114
x=38
P=26
Miguel and Bartholomew each have credit card debt. Miguel owes $2000 and makes a monthly payments, reducing his debt by $250 per month. Bartholomew owes $1500 and makes monthly payments, reducing his debt by $150 per month. Let m represent The number of months and b represent the balance on the credit card account in dollars. Write a system of 2 equations to represent this situation. When will Miguel and Bartholomew owe the same amount of money?
Answer:
Miguel:
b = 2000 - 250m
Bartholomew:
b = 1500 - 150m
When m = 5
Step-by-step explanation:
Let
m = The number of months
b = balance on the credit card account in dollars.
Miguel owes $2000 and makes a monthly payments, reducing his debt by $250 per month.
Miguel:
b = 2000 - 250m
Bartholomew owes $1500 and makes monthly payments, reducing his debt by $150 per month
Bartholomew:
b = 1500 - 150m
When will Miguel and Bartholomew owe the same amount of money?
Miguel balance = Bartholomew balance
2000 - 250m = 1500 - 150m
2000 - 1500 = -150m + 250m
500 = 100m
m = 500/100
m = 5 months
Patrick’s drawing uses a scale of 1 inch = 10 meters. Squidward made another scale drawing of the hotel with a scale of 2 cm = 40 meters. How tall is the hotel on Squidward’s drawing?
Answer:
10 m building in Patrick's drawing would be of 0.5 cm
Step-by-step explanation:
Scale of Patrick's drawing is
1 inch = 10 meters
or 2.54 cm = 10 meters
1 cm = 3.94 m
In case of Squidward the scale is 2 cm = 40 meters or
1 cm = 20 meters
So a 10 m building in Patrick's drawing would be of
0.5 cm
Answer:
13.5
Step-by-step explanation:
Given: Patrick’s drawing uses a scale of 1 inch = 10 meters. Squidward made another scale drawing of the hotel with a scale of 2 cm = 40 meters.
To find: How tall is the hotel on Squidward’s drawing?
Formula: Height of the building = y × tan x + measurer's height
Solution: The height of the building is calculated by using the formula. y = distance of the measurer from the building. x = the angle measured from the clinometer.
Find the distance between the points
Answer:
12 hope this help
Step-by-step explanation:
The length of a shadow building is 28 m the distance from the top of the building to the tip of the shadow is 38 m find the height of the building if neccessary round your answer nearest tenth
Answer:
25.7m
Step-by-step explanation:
Pythagorean Theorem: a^2+b^2=c^2
28^2+b^2=38^2
784+b^2=1444
b^2=660
b=25.6904652 or 25.7m
there are 3 red marbles,4 blue marbles,2 green marbles, 6 clear marbles in a burlap bag. One marble is randomly pulled from the bag. What is the probability the marble was green?
Can someone plz help me with this one problem plz!!!
Answer:
sure. answer down below.
Step-by-step explanation:
[tex]A=\pi r^2\\A=3.14*(4)^2\\A=50.24[/tex]
Answer:
50.24
Step-by-step explanation:
Area of circle is π x [tex]radius^{2}[/tex]
= 3.14 x [tex]4^{2}[/tex]
= 50.24
Please help I need to get this done
Answer:
48
Step-by-step explanation:
So you take 7x-92+6x+12=180
And then you get x=20
Plug in 20 for x for <LOM
And you get and you get 48
Hope this helped!!
Gallup is a company that carries out daily opinion polls on a variety of topics. In a recent daily poll of 1{,}0001,0001, comma, 000 randomly selected US adults, 334334334 said they were engaged at work.
Based on this sample, which of the following is a 90\%90%90, percent confidence interval for the proportion of all US adults who would say they are engaged at work?
Choose 1 answer:
Choose 1 answer:
Answer:
c
Step-by-step explanation:
Khan Academy
Answer:
(0.309,0.359)
Step-by-step explanation:
WILL GIVE BRAINIEST BUT ONLY IF YOU GET IT RIGHT!!!!!
Answer:
17.20
Step-by-step explanation:
Let me know if this is right or not.
Answer:
Step-by-step explanation:
use pythagorean theorem which is c=square root of a2+b2
but we solving side be so
b=square root of c2-a2
b= square root (196-100)
b2=96
b approximately = 9.8
a. Complete the table of values for the relation y = - 6. Please answer each question in the box provided.
x y = - 6
-6
-3
0
3
6
9
Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values. Tap for more steps.
:
HELP!!What is the volume of the rectangular prism?
2 inches
8 inches
4 inches
A
14 cubic inches
B
112 cubic inches
164 cubic inches
64 cubic inches
Answer:
64 cubic inches
Step-by-step explanation:
The formula to find the volume of a rectangular prism is
Length x Width x Height
Therefore, 2 x 8 x 4 = 64.
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D
Step-by-step explanation:
9514 1404 393
Answer:
C. Residuals aren't random; linear is not a good fit
Step-by-step explanation:
The attached graph shows the given points (black) and the best-fit line (red). The residuals are connected by the dashed red line. They are decidedly NOT random. It appears that an exponential fit would work better than this linear fit.
The residual values are not randomly dispersed around the horizontal axis, so a linear fit is not appropriate.
find the area of the shape below
Answer:
114
Step-by-step explanation:
Answer:
Area = 115 yards
Step-by-step explanation:
If we look at this as two rectangles, you can see that the area of one is going to be 10yd multiplied by 9yd, which gives us 90yd. The other smaller rectangle will be 6yd multiplied by 4yd, which gives us 24yd.
Now, add the two areas back together to get the area of the whole shape and you get A=115yd.
Hope this helps!
In the year 2003, a company made $5.4 million in profit. For each consecutive year after that, their profit increased by 9%. How much would the company's profit be in the year 2006, to the nearest tenth of a million dollars?
Profit in 2006: $7 million
First convert the percent into decimal: 9% = 0.09
Then use the percent increase then multiply by the number using this formula: ( 1 + r ) = ( 1 + 0.09) = 1.09
You only want to find how much profit in 2006, so you do this:
2003: 5.4
2004: 5.4 (1.09) = 5.886
2005: 5.886 (1.09) = 6.41574
2006: 6.41574 (1.09) = 6.99316
Then you take 6.99316 and round to the nearest tenth of a million dollars.
7 million dollars.
how do i make my grades go up quickly- yes in all subjects plz help me
Answer:
Step-by-step explanation:
A way to make your grades go higher is by asking your teacher for extra credits. If you fail some quizzes ask your teacher to re-take it to get a better grade, another way is ask your teacher for assistance on assignments.
Help help help help help help dont troll
Answer:the correct answer is C
Step-by-step explanation:
I need answer Immediately pls!!!!!!
Answer:
1/3
Step-by-step explanation:
Total number of people who play sports in the Algebra 2 class:
[tex]21 - 9 = 12[/tex]
If there are 10 students who play Basketball, there are 2 students who ONLY play Baseball. If there are 9 students who play Baseball, there are 3 students who ONLY play Basketball.
So the number of students who play BOTH sports is:
[tex]12 - 2 - 3 = 12 - 5 = 7[/tex]
If 7 from the 21 Algebra 2 class students play BOTH sports, the probability is:
[tex]P = \frac{7}{21} = \frac{1}{3}[/tex]
What is an ecosystem?
1. A self-contained living thing
2. A group of interacting 3.individuals from the same species located in the same area
4. All of the biotic and abiotic things within a given area and all of their inteactions
5. A food web
Answer:
4
Step-by-step explanation:
Need help I'll give branlist plzzzz
Did I do it right? If I didn't, Can u please explain why and give me the correct answer please?
Answer:
Step-by-step explanation:
1) find the total of candies
3 + 6 + 5 + 2 + 8 = 24
2) divide the number of yellow candies for the total amount of candies
5/24 = 0.21 (correct)
3) use a proportion
6 : 24 = x : 200
x = (200 *6) / 24 = 50 (correct)
PLEASE HELP
A special truck cleans the surface of the ice rink shown below. The figure is composed of a square and two semicircles. 105 If the truck cleans the entire surface, how many square meters of ice will the truck dean? Use 3.14 for T. Round your answer to the nearest tenth. Show your work. Answer: square meters
Answer:
1026.02, you can round that online
Step-by-step explanation:
If P( 9,r ) = 3,024, what is r ?
plz plz plz... help mè
I mark it... :(
Answer:
[tex] \frac{9i}{(9 - r)i} = 3024 \\ (9 - r)i = 9i \div 3024 = 362880 \div 3024 = 120 = \\ = 1 \times 2 \times 3 \times 4 \times 5 = 5i \\ r = 4[/tex]
Tell whether the statement is always, sometimes, or never true. Explain.
1. If x and y are supplementary angles, then y is acute.
2. If x and y are complementary angles, then x is obtuse.
Answer:
1. If x and y are supplementary angles, then y is sometimes acute because supplementary angles are angles that add up to 180 degrees. So, y can be acute while x can be obtuse, y can be obtuse while x can be acute, or both can be right angles.
2. If x and y are complementary angles, then x is never obtuse. Complementary angles are angles that add up to 90 degrees, and obtuse angles are angles over 90 degrees, so it's impossible to have an obtuse angle as a complementary angle.
Step-by-step explanation:
Answer:
1) Sometimes
2) Never
Step-by-step explanation:
1) you could have two angles add up to 180 degrees and one of them could be less than 90
example, x = 140° and y = 40°
2) if two angles are complementary then their sum is 90° so neither angle must be less than 90°, thereby making them both acute angles
5/11x6/7 = 5/14.........................................
Answer:
[tex]5 \div 11 \times 6 \div 7 = \frac{30}{77} [/tex]