Answers
Answer:
the answer is : -2x^2+13
Step-by-step explanation:
pls mark brainliest plspls
oh and btw hows ur day been going, hope good, make sure to not forget to drink water :)
Related Questions
[tex] \sqrt{2} \div 2 + 2 \div \sqrt{2 } [/tex]
What does it equal to??
Answers
Answer:
[tex]\frac{3\sqrt{2} }{2}[/tex]
Step-by-step explanation:
Given
[tex]\frac{\sqrt{2} }{2}[/tex] + [tex]\frac{2}{\sqrt{2} }[/tex] ← rationalise the denominator by multiplying by [tex]\frac{\sqrt{2} }{\sqrt{2} }[/tex]
= [tex]\frac{\sqrt{2} }{2}[/tex] + ( [tex]\frac{2}{\sqrt{2} }[/tex] × [tex]\frac{\sqrt{2} }{\sqrt{2} }[/tex] )
= [tex]\frac{\sqrt{2} }{2}[/tex] + [tex]\frac{2\sqrt{2} }{2}[/tex]
= [tex]\frac{3\sqrt{2} }{2}[/tex]
What is the solution?
Answers
Answer:
(2,3)
Step-by-step explanation:
it's the point of intersection
hope this helps, pls mark brainliest :D
Answer:
2,3 i believe 2 on the x axis and 3 on the y
Step-by-step explanation:
What is the slope of the line that passes through the points El 1, 4) and F(2, 6)?
O-3/2
O 2/3
O 3/2
Answers
Answer:
2/3
Step-by-step explanation:
(6 -4) / (2 - (-1)) =(2) / (2+1) = 2/3
Scarlet deposited $500 in a savings account with simple interest. One year later she had earned $30 in interest. What was the interest rate?
Answers
Answer:
6%
Step-by-step explanation:
Interest = Principal x Rate x Time (in years)
30 = 500r
r = 3/50 or 6/100 which is 6%
Could you tell me the answer of 3(b)? Pleaseeeeee
Answers
Answer:
(b)
[tex]\displaystyle \frac{2005}{2006}[/tex]
Step-by-step explanation:
(a)
First, we have to prove that:
[tex]\displaystyle \frac{1}{x}-\frac{1}{x+1}=\frac{1}{x(x+1)}[/tex]
Operate:
[tex]\displaystyle \frac{1}{x}-\frac{1}{x+1}=\frac{x+1-x}{x(x+1)}[/tex]
Simplifying:
[tex]\displaystyle \frac{1}{x}-\frac{1}{x+1}=\frac{1}{x(x+1)} [1][/tex]
(b)
Now we use the above expression to find the sum:
[tex]\displaystyle S=\frac{1}{1\times 2}+\frac{1}{2\times 3}+\frac{1}{3\times 4}+...+\frac{1}{2005\times 2006}[/tex]
Let's use [1] for each term of the sum:
[tex]\displaystyle \frac{1}{1\times 2}=\frac{1}{1}-\frac{1}{2}[/tex]
[tex]\displaystyle \frac{1}{2\times 2}=\frac{1}{2}-\frac{1}{3}[/tex]
[tex]\displaystyle \frac{1}{3\times 4}=\frac{1}{3}-\frac{1}{4}[/tex]
[tex]\displaystyle \frac{1}{2005\times 2006}=\frac{1}{2005}-\frac{1}{2006}[/tex]
Substituting:
[tex]\displaystyle S=\frac{1}{1}-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+....+\frac{1}{2005}-\frac{1}{2006}[/tex]
Note the terms 1/2 and -1/2, 1/3 and -1/3, etc. are canceled out, leaving only the first and last terms:
[tex]\displaystyle S=\frac{1}{1}-\frac{1}{2006}=\frac{2006-1}{2006}[/tex]
[tex]\boxed{\displaystyle S=\frac{2005}{2006}}[/tex]
I'm having some trouble on this
Answers
16 children together weigh 480 kg 960 g . If weight of all the children are equal, find the weight of each child.
Answers
Answer:
30.06 kg
Step-by-step explanation:
480kg 960g = 480969g.
480960 / 16 = 3060g
30060g
30060g = 30.06kg.
In order for the parallelogram to be a square x = ?
Answers
Answer: x = 7
Step-by-step explanation: In order for a parallelogram to be a square, the angles at the corners must be 90 degrees, and the diagonals that bisect the corner angles must be 45 degrees.
4x + 17 = 45 Subtract 17 from both sides.
4x = 28 Divide both sides by 4
x = 7
You throw a ball into the air from a height of 5 feet with an
initial vertical velocity of 32 feet per second. Use the vertical
motion model, h = –16t2 + vt + s, where v is the initial
velocity in feet per second and s is the height in feet, to
calculate the maximum height of the ball. Round your answer
to the nearest tenth if necessary.
Maximum height
Answers
X = -32/2(-16) = 1 = time
-16(1)^2 + 32(1) + 5 = 21 ft!
Select the correct answer.
Which statement is true about this equation?
3(-y + 7) = 3(y + 5) + 6
A
The equation has one solution, y= 0.
OB.
The equation has one solution, y=-1.
C.
The equation has no solution.
D.
The equation has infinitely many solutions.
Reset
Answers
Answer:
THE ANSWER IS A. I GOT IT RIGHT ON EDMENTUM.
Step-by-step explanation:
A
The equation has one solution, y= 0
John states that the product of two real numbers is a real number. Extending this to imaginary numbers John states that the product of two imaginary numbers must be imaginary. Is his statement correct?
I am having a hard time with imaginary numbers,please help.
Answers
___________________________________________________________
Answer:
no. i*i = -1
2i*3i=-6
now if they meant complex numbers the answer is still no
(2+4i)(2-4i) = 4-8i+8i-16 = -12
___________________________________________________________
find the mean of given data 32,41,28,54,35,26,23,33,38,40.
Answers
Answer:
350/ 10 = 35
Step-by-step explanation:
hope it helps!
........
Answer:
mean= 32+41+28+54+35+26+23+33+38+40/10
mean=350/10
mean= 35
I need help thank you
Answers
Answer:
x is greater than or equal to 8.75 or 8 3/4
Step-by-step explanation:
So we first write the inequality 3 + 1.2c "is greater than or equal to sign" 13.5. Then we subtract 3, then divide both sides by 1.2 to isolate c. We get x "is greater than or equal to" 8.75.
The equation 4 = p(l+r) can be used to calculate compound interest on a savings account. A = future balance
p= current balance, r= rate of interest, and t= time in years. If you deposit $2,000 at 10% each year, how much
money will be in your account in 10 years? (Round to the nearest dollar.)
A 2200
B. 4000
C. 4318
D. 5,187
Answers
Please help me answer these.
1: A storage box has a volume of 56 cubic inches, and the base of the box is 4 inches by 4 inches
What is the height of the box?
2: A pool in the shape of a rectangular prism is being filled with water. The length and width of the pool is 24 feet and 15 feet. If the height of the water in the pool is 1 1/3 feet, what is the volume of the water in cubic feet?
3: Lin’s second pan has a length of 8/3 inches, a width of 15/4 inches, and a height of 3/2 inches. What is the volume of the second pan?
4: Lin has two small baking pans, each shaped like a rectangular prism.
Lin lines the bottom of her first pan with aluminum foil. The area of the rectangular piece of foil is 11 1/4 square inches. It’s length is 4 1/2 inches. What is the width of the foil?
5: Select all statements below that show correct reasoning for finding 15 divided by 2/9
A - Multiply 15 by 2, then divide by 9
B - Multiply 15 by 9 then divide by 2
C - Multiply 15 by 1/9 then multiply by 2
D - Multiply 15 by 9, then multiply by 1/2
6: Mai biked 6 3/4 miles today, and Noah biked 4 1/2 miles. How many times the length of Noah’s bike ride was Mai’s bike ride?
Answers
Answer:
1 is 3.5
2 is 480
3 is 15
4 is 2.5
5 is B and D
quick one pls help!!
Answers
Student council wants to paint a mural of the school mascot on a wall in the gym. The scale 1 inch represents 2.5 feet is used in their plan the mascot will be 10 feet tall in the actual mural how tall is the mascot on the plan in inches
Answers
Answer:
4 inches
Step-by-step explanation:
1 inch * 10 feet / 2.5 feet = 4 inches
A right triangle has a right exterior angle?
True or False?
Answers
By the distributive law 49×17+49×3
Answers
Explanation:
(49 x 17) + (49 x 3)
833 + 147 = 980
Please help! 30 points! ASAP plz and correct answers only please!!
Answers
Answer: NA and Rb and there are 20 protons in calcium!
Step-by-step explanation:
Answer:
No. of protons = 20
No. of electrons = 20
No. of neutrons = 20
Step-by-step explanation:
Part 1 :
Na, K and Rb are in the same group.
So, K and Rb are the two elements that have the same properties as sodium ( Na ).
Part 2 :
Atomic Number of Calcium = 20
Note :
Atomic Number = No. of protons
Therefore,
No. of protons = 20
Note :
No. of neutrons = No. of protons.
Therefore,
No. of neutrons = 20
Calcium is the 20th element, with 20 protons. Since a stable atom has a net charge of 0, it must have 20 electrons.
Homer buys groceries for 50 dollars and a coffee for 5 dollars. Sales tax is 8%. How much does Homer actually have to pay?
Answers
Answer:
44
Step-by-step explanation:
(50+5)=55x.08= 4.4
55+4.4= 59.4
Answer:
$59.40
Step-by-step explanation:
$55 + $4.40 (8% tax) = $59.40
Find a public opinion poll from a media source that predicts a probability. Design a probability experiment that models a political science public opinion poll.
What are the possible outcomes and sample space of the experiment?
What were the results of the experiment? Show the results in table format.
What is the probability of each option?
How can a binomial probability experiment be set up to test the accuracy of the results?
i know this is a bit of an odd one to need help with, but this decides my grade, so please only answer if you can help
Answers
Probability theory, a branch of mathematics concerned with the analysis of random phenomena. The outcome of a random event cannot be determined before it occurs, but it may be any one of several possible outcomes. The actual outcome is considered to be determined by chance.
What is the equation in slope-intercept form of a line that passes through the point (4, 5) and has a slope of 1/2?
Answers
Answer:
1/2x + 5
Step-by-step explanation:
The y intercept is 5 & the slope is already given!
WILL GIVE BRAINELIEST ( dont know how to spell it lol)
Temperature can be measured in degrees Celsius (°C). A temperature of 0°C is the freezing point of water. Which statements are true?
Select all correct answers.
A temperature of 10°C is colder than –12°C.
A temperature of 10°C is colder than –12°C.
When the temperature is 70° above freezing, the temperature is 70°C.
When the temperature is 70° above freezing, the temperature is 70°C.
A temperature of –16°C is colder than –12°C.
A temperature of –16°C is colder than –12°C.
A temperature of –8°C is colder than –12°C.
A temperature of –8°C is colder than –12°C.
A half degree above the freezing point is a negative number.
A half degree above the freezing point is a negative number.
When the temperature is 7° below freezing, the temperature is –7°C.
Answers
Answer:
When the temperature is 70° above freezing, the temperature is 70°C.
A temperature of –16°C is colder than –12°C.
When the temperature is 7° below freezing, the temperature is –7°C.
A temperature of 10°C is colder than –12°C.
When the temperature is 70° above freezing, the temperature is 70°C.
A temperature of –8°C is colder than –12°C.
When the temperature is 7° below freezing, the temperature is –7°C.
What are the domain and range of the function? F(x)=-3/5x^3
Answers
Answer:
A) Domain: All real numbers, excluding zero (-∞, 0) ∪ (0, ∞)
Range: All real numbers, excluding zero (-∞, 0) ∪ (0, ∞)
Step-by-step explanation:
Kirk's average driving speed is 7 kilometers per hour faster than Thor's. In the same length of time it takes Kirk to drive 450 kilometers, Thor drives only 408 kilometers. What is Kirk's average speed?
Answers
Answer:
x = 816 kilometers per hour.
Step-by-step explanation:
Given the following data;
Distance traveled by Kirk = 450km
Distance traveled by Thor = 408 km
Let the average driving speed of Thor be x.
Translating the word problem into an algebraic equation;
k = x + 6
We know that the time taken to cover a distance by an object with speed is given by the formula;
Time = distance/speed
Substituting into the equation, we have;
408/x = 405/x + 6
Cross-multiplying, we have;
408*(x + 6) = 405*x
408x + 2448 = 405x
408x - 405x = 2448
3x = 2448
x = 2448/3
x = 816 kilometers per hour.
In Siberia, a record high temperature of 98 F has been reported. The record low temperature is 192 degrees lower than the record high temperature. What was the coldest Siberia temperature?
Answers
Answer:
Lo: - 94o F
Step-by-step explanation:
Hi: 98oF
Difference: 192 degrees lower
Low: ?
Formula
98 - 192 = -94
That seems incredibly cold. I've lived through a day that was - 60oF and that was enough. (about - 51o C)
If you think in Celcius
The formula is
C = 5/9(F - 32)
C = 5/9 (-94 - 32)
C = 5/9 (-126)
C = -60
I think Siberia must be much colder than -60.
what is the slope represented in the table??????
Answers
Answer:
what?
Step-by-step explanation:
karma
please simply the equation:- -p - 11 + 3
Answers
Answer:
11+p-3 or 3+p-11
Step-by-step explanation:
depending if the p is negative or positive
If a^m=a^n , what can you determine about m & n?
Answers
Answer:
m=n
Step-by-step explanation:
i am not 100% sure what the answers would be but it would me m=n