Answer:
f(-3)= 15
Step-by-step explanation:
f(-3) means x is equal to -3
-3 squared - 2(-3)
-3*-3 -2(-3)
*Negative multiplied by a negative equals a positive
9+6= 15
f(-3)= 15
Hope this helps!
Answer:
put (-3) in place of x then it will be 9-6 then f(-3)=3
What modifications did kepler make to copernicus’s model? select two options. planetary orbits are elliptical. planets closer to the sun move faster. planets spin in an epicycle while orbiting earth. venus has phases due to its orbiting of the sun. earth’s rotation causes the rising and setting of the sun.
The modifications did Kepler make to Copernicus’s model are planetary orbits are elliptical (A) and Earth’s rotation causes the rising and setting of the sun (E).
What are the laws of Kepler?There are three laws, made by the Kepler, to explain the motion of the planet around the sun.
First Law-According to this law, all the planets moves in the elliptical orbits. The center of this orbital path is the Sun. Thus Planetary orbits are elliptical. Second Law-The planet moves in elliptical orbit. The line of planet and sun sweeps out equal mass in equal time.Third Law-The square of the period of a planet to complete one path of electrical orbit is directly proportional to the cubes of semi-major axis of their orbit.Earth’s rotation causes the rising and setting of the sun because of the earth's rotation on its axis.
Hence, the modifications did Kepler make to Copernicus’s model are planetary orbits are elliptical (A) and Earth’s rotation causes the rising and setting of the sun (E).
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A rental car company charges $68.64 per day to rent a car and $0.12 for every mile driven Jackson wants to rent a car knowing that he plans to drive 500 miles he has at most $210 to spend what is the maximum amount of number of days that Jackson can rent a car while staying with his budget
Answer:
maximum amount of number of days that Jackson can rent a car while staying with his budget is 2 days
Step-by-step explanation:
first of all find the amount of money he will spend for 500 miles
in this case we multiply 0.12 by 500
=> 0.12 × 500
=> 60
subtract 60 from the money budgeted which is $210
=> $210 - 60
=> 150
divide 150 by the company charges per day which is dollars 68.64
=> 150 ÷ 68.64
divide 150 by 68.64
=> 2.185314685314685
approximately
=> 2 days
Answer:
2
Step-by-step explanation:
Let's say the number of days that Jackson can rent the car is x. By the question to know 6Click and drag like terms onto each other to simplify fully.
2-5+7y-5x+7x-2y
Answer: 5y + 2x - 3
(In simplest form)
5(4)+6a-9 I need the answer because its hard
Answer:
6a+11
Step-by-step explanation:
First you do 5 times 4 which is 20. Next you want to subtract 20 and 9 and you get 11. Lastly you want to rearrange the terms so you get the solution of 6a+11
What is 5 divided by (-3) but in the long division?
Answer:
Step-by-step explanation:
Divide 5 by 3
5 divided by 3 is 1 (in the set of integers). The remainder is 2.
5/3 is 1.666666666666666666666666666666666666666666666666666666666666667 (in the set of reals).
Solution for 5 divided by 3
✍️See below how to solve this division manually.
5 divided by 3 - Long Division Solution
The solution below uses the "Long Division With Remainders Method". It is one of two existing methods of doing long division.
Start by setting the divisor 3 on the left side and the dividend 5 on the right:
1 ⇐ Quotient
―
3)5 ⇐ Dividend
3
-
2 ⇐ Remainder
The result of the division of 5 divided by 3 is 1.6666666666666667, as a decimal number.
5/3 as a mixed number
5 divided by 3 equals to the mixed number 1 2
3
.
Note that the result of the division 5÷3 is not an exact value and is equivalent to a recurring decimal 1.66... (which has 6 as the period).
S is the midpoint of RT. If RS = 6x and ST = x + 10, what is RS?
Answer: 12
Step-by-step explanation:
pls help i don’t know how to do this
Step-by-step explanation:
to do what ?
the calculation of the 2 solutions for the quadratic equation is already done here.
so, what else do you need ? an explanation ?
in general, a quadratic equation looks like
ax² + bx + c = 0
and the formula for the solutions is
x = (-b ± sqrt(b² - 4ac))/(2a)
remember, a linear equation (x¹) has one zero solution.
a quadratic equation (x²) has 2 zero solutions.
a cubic equation (x³) has 3 zero solutions.
and so forth.
the 2 solutions here are created by the "±" operation. one solution is using the "+". and the other the "-". that is all.
so, what happened here was simply putting the values of the given equation into the solution formula and doing the calculations.
and the final line is saying that the solutions are the set of the 2 numbers represented by the "±" expression.
to finish this up for better clarity :
the first solution is
x = (-17 + sqrt(217))/4 = -0.567270034...
the second solution is
x = (-17 - sqrt(217))/4 = -7.932729966...
is there anything still unclear ? please let me know.
Please help!!<3
Thanks in advance!!:))
It took Allen 2 hours to plant 4 flats of flowers. How many hours would it take for him to plant 22 flats of flowers
Answer:
11
Step-by-step explanation:
Answer:
11 hours
Step-by-step explanation:
22÷4 = 5.5
5.5×2 = 11
14 out of 50 equals what percent
Answer:
28%
Step-by-step explanation:
50 x 0.28 is 14
help ts all in the screenshot
I think it's decreasing
Find the value of x.
Answer:
x = 25
Step-by-step explanation:
[tex]2x + 10 + 30 = 90[/tex]
[tex]2x + 40 = 90[/tex]
[tex]2x = 50[/tex]
[tex]x = 25[/tex]
What is the sum of m? PLEASE HELP
Answer:
m = 8
Step-by-step explanation:
first set the inside values equal to 90 degrees (6m + 6) + 36 = 90.
then easily work it out.
subtract 36 from each side
(6m + 6) + 36 = 90
-36 -36
so now it's (6m + 6) = 54
subtract 6 from each side
6m = 48
divide each side by 6
m = 8
Find the approximate unknown angle o using inverse trigonometric ratios (sin-1,cos-1, or tan-1)
Answer:
[tex]\displaystyle 34°[/tex]
Step-by-step explanation:
[tex]\displaystyle csc^{-1}\:1\frac{4}{5} = \theta; 33,748988596...° \\ \\ \boxed{34° \approx \theta}[/tex]
OR
[tex]\displaystyle sin^{-1}\:\frac{5}{9} = \theta; 33,748988596...° \\ \\ \boxed{34° \approx \theta}[/tex]
I am joyous to assist you at any time.
out of 232 tourists shopping in venice florida 25% purchased seashells as souvenirs. Using the percent as a rate per 100 how many tourists purchased seashells
Answer:
58 tourists
Step-by-step explanation:
25% = .25
.25 x 232
=58
-1/10 dived by 1/8. please answer in fraction form
Answer:
-4/5
Step-by-step explanation:
I calculated it and the answer came directly
Answer:
[tex] -\dfrac{4}{5} [/tex]
Step-by-step explanation:
[tex] -\dfrac{1}{10} \div \dfrac{1}{8} = [/tex]
[tex] = -\dfrac{1}{10} \times \dfrac{8}{1} [/tex]
[tex] = -\dfrac{1 \times 8}{10 \times 1} [/tex]
[tex] = -\dfrac{8}{10} [/tex]
[tex] = -\dfrac{4}{5} [/tex]
4x + 6y = -8
-6x-6y = 24
what are the coordinate point where the two lines will intersect
Answer:
the point where the two lines intersect is (-8, 4)
what is 0.75x – 100 ≤ 80
Answer: X is less than or equal to 240
The solution to the inequality 0.75x - 100 ≤ 80 is x ≤ 240.
Given is an inequality what is 0.75x – 100 ≤ 80, we need to solve it,
To solve the inequality 0.75x - 100 ≤ 80, we can follow these steps:
1. First, let's isolate the variable x by adding 100 to both sides of the inequality:
0.75x - 100 + 100 ≤ 80 + 100
0.75x ≤ 180
2. Next, we can divide both sides of the inequality by 0.75 to solve for x:
(0.75x) / 0.75 ≤ 180 / 0.75
x ≤ 240
Therefore, any value of x that is less than or equal to 240 will satisfy the inequality.
Therefore, the solution to the inequality 0.75x - 100 ≤ 80 is x ≤ 240.
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1. The price of an article with 15% VAT is Rs. 920. What will be the
price excluding VAT?
Answer:
Rs 800
Step-by-step explanation:
VAT%=15%
Total price =Rs920
Consider price without VAT as Rs x.
Then,
Total price =x+15%of x
or,920=23x/20
or, 23x=920*20
or, x=18400/23
Therefore, x=Rs 800
pls help mee i need it immediately pls
find the area of the composite shapes
Diego estimates that there will need to be 3 pizzas for every 7 kids at his party. Select all the statements that express this ratio.
Select all that apply:
a.The ratio of pizzas to kids is 3 to 7.
b.For every 7 kids there need to be 3 pizzas.
c.The ratio of kids to pizzas is 7:3.
d.The ratio of kids to pizzas is 3:7.
e.The ratio of pizzas to kids is 7 to 3.
The correct statements that express ratio are;
b. For every 7 kids there need to be 3 pizzas.
c. The ratio of kids to pizzas is 7:3.
Here,
Diego estimates that there will need to be 3 pizzas for every 7 kids at his party.
We have to find the all statements that express this ratio.
What is Ratio?
A ratio indicates how many times one number contains another.
Now,
There are 3 pizzas.
Number of kids = 7
Hence, The ratio of pizzas to kids = 3 : 7 ( it can be read as 3 is to 7 )
And, For every 7 kids there need to be 3 pizzas.
The ratio of kids to pizzas = 7 : 3 ( it can be read as 7 is to 3 )
Therefore, The correct statements that express ratio are;
b. For every 7 kids there need to be 3 pizzas.
c. The ratio of kids to pizzas is 7:3.
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Can you please help me with this question
Answer:
5(2+x^5)
Step-by-step explanation:
...
im guessing we need to factor
A jeweler made a new crown for the queen. It was made with an 8.74-carat diamond, a 7.086-carat ruby, and a 4.932-carat sapphire.
What is the approximate total weight of the gems?
Answer:
20.758
Step-by-step explanation:
8.74 + 7.086 + 4.932
please tell me the snswer omggg dang it i need 20 words
Answer:
A
Step-by-step explanation:
[tex]\sqrt{50}[/tex] is not a perfect square. This means that you can rule out answers B and D, because it won't be 'exactly' anything.
Let's think about the other answer choices. C says that the answer of \sqrt{50} will be between 24 and 25. This is easily checkable by doing [tex]24^{2}[/tex], which equals 576. This easily eliminates option C.
Now, if the other answer choices weren't so obviously incorrect, let's see how you would solve this. What's the closest perfect square root under 50?
[tex]\sqrt{49}[/tex], which equals 7.
What's the closest perfect square root above 50?
[tex]\sqrt{64}[/tex], which equals 8.
This puts [tex]\sqrt{50}[/tex] between 7 and 8.
Answer:
Option A
Step-by-step explanation:
Here we can find out the correct option by eliminating the wrong options . We know that √50 is not a perfect square.
This eliminates option d as it says that its value is exactly 7 .
[tex]\implies \red{\text{ Option D is wrong }}[/tex]
Now look at Option C , it says that it lies between 24 and 25 . This is impossible since , 24² = 576 and 25² = 625 .
[tex]\implies \red{\text{ Option C is wrong }}[/tex]
Again the option b is similar to option d , as it says its exact value is 25 which is not possible. Hence this option is also wrong .
[tex]\implies \red{\text{ Option B is wrong }}[/tex]
Now we are ultimately left with option with shared that its value lies between 7 and 8 . We know that 7² = 49 and 8² = 64. And 50 lies in between them. Therefore Option A is the correct option .
[tex]\implies \green{\text{ Option A is correct. }}[/tex]
Which graph shows the solutions of the system of equations 2x - y = 8 and x - y = 2?
(Refer to both images for all answers)
Answer:
A. First graph
Step-by-step explanation:
2x - y = 8 in slope intercept form is y = 2x - 8
x - y = 2 in slope intercept form is y = x - 2
The first graph matches the slope intercept form equations.
Use the equation below to find y. If M=2, X=5 and, B=12. y=mx+b. y=
Please help ASAP!
Also answer in number form.
Answer:
y= (2)(5)+12
=10+12
= 22
Answer:
22
Step-by-step explanation:
replace the variables with the given values:
y=(2)(5)+12
y=10+12
y=22
Sent the other one too early
Please help, it's due today, I'll give brainliest!
Answer:
yes its right
Step-by-step explanation:
Answer:
J: (2, 4)
K: (1, 1)
L: (4, 0)
M: (1, 3)
N: (3, 2)
O: (2, -2)
P: (-1, 0)
Im not sure what the J' or K' means, i might have to search it up but ill try answering that too
Step-by-step explanation:
this is very simple actually! i can teach you:
(x,y)
so if you are counting left or right it goes to the x. for example, if you want to find J, you go to the black dot that says J and count starting from 0 or by looking at the x axis.
if you are counting up or down you go to (input the value) the y. if you want to find J for example, (the y coordinate) you go to the black dot and you count starting from 0. usually it will have the points -5 -4 -3 -2 -1 0 1 2 3 4 5 but in your problem it does not have so you just have to count carefully.
i will go search for what K' or J' means
Please help me out with this
Graph y=3/4x + 2
Answer:
i wrote how to below!
Step-by-step explanation:
okay since the y intercept is 2, put a dot on the point (0, 2)
now for the next one just substitute an easy value like 1 to the equation
y = 3/4(4) + 2
the 4 will cancel out the denominator then...
y = 3 + 2
y = 5
now put a point on (4, 5)
Answer:
answer in explanation
Step-by-step explanation:
(0,2)
(1,2.75)
(2,3.5)
(3,4.25)
(4,5)
a diver is -46 feet in the water. he swims up 0.5 feet every 3 seconds. what is the location of the diver relative to the surface after 15 seconds
Answer:
-43.5
Step-by-step explanation:
After 15 second he would have swam to a level of -43.5.
Find the slope of a line perpendicular to
3x+2y=6
Answer:
the slope should be -1/3 because perpendicular is always opposite of the original slope.
Step-by-step explanation: