Answer:
-20%
Step-by-step explanation:
percentage change is calculated by
(new price - old price) / old price
(64 - 80) / 80
please give thanks by hitting heart button! :)
Zoologists have been carefully observing an
endangered species in the foothills. They have
noticed that the population, P, of the animal in the
foothills has increased by 3% each year. Their
observations indicated that 500 of the animals
were initially in their study.
Which rule can be used to estimate the
population of the endangered animal over time?
Answer:
i would do last option
Step-by-step explanation:
Which is the graph of the function f(x) = x^3 -3x^2-4x
Answer:
b
Step-by-step explanation:
Find the slope and the y-intercept of the graph of y=−7x+12.
Hi!
[tex]\spadesuit[/tex] We're given an equation in slope-intercept form.
The formula for slope-intercept is:[tex]\clubsuit~~~\large\boldsymbol{y=mx+b} ~~~\clubsuit[/tex]
where:
[tex]\clubsuit ~\boldsymbol{m - > slope}[/tex]
[tex]\clubsuit~~\boldsymbol{b- > y-intercept}[/tex]
Therefore,
[tex]\stackrel{\heartsuit}{\boxed{\boxed{\textsc{Answers:}\begin{cases}\bold{Slope:-7}\\\bold{y-intercept:12}\end{cases}}}}[/tex]
Cheers!!I hope that helped, have a wonderful day. :)
What are the roots of the equation x2 + 15x = -57 in simplest a + bi form?
Answer:
Step-by-step explanation:
Rewrite x2 + 15x = -57 as x^2 + 15x + 57 = 0, in which the coefficients of this quadratic are {1, 15, 57}.
Then the discriminant is b^2 - 4ac = 225 - 4(1)(57) = -3
Because the discriminant is negative, we know that the two roots will be complex. They are:
-15 ±i√3
x = ---------------
2
9514 1404 393
Answer:
x = -7.5 ± i(√3)/2
Step-by-step explanation:
We can add (15/2)² to complete the square:
x² +15x +(15/2)² = -57 +(15/2)²
(x +7.5)² = -0.75
x +7.5 = ±i(√3)/2 . . . . take the square root
The roots are ...
[tex]x=\displaystyle\left \{ {{-\dfrac{15}{2}+i\dfrac{\sqrt{3}}{2}} \atop {-\dfrac{15}{2}-i\dfrac{\sqrt{3}}{2}}} \right.[/tex]
Chloe was out at a restaurant for dinner when the bill came. Her dinner came to $28. She wanted to leave a 25% tip. How much was her meal plus the tip, before tax, in dollars and cents?
Answer:
25 upon 100 into 28
And add to 28 for total
Step-by-step explanation:
What I did was I found what 25% of $28 is, which is $7. The equation came to this:
[tex]28+7=35[/tex]
The total price with the 25% tip is $35
Thank you! Btw can I please get brainly :3
12 m
9 m
What is the length of the hypotenuse?
C =
meters
Step-by-step explanation:
AC^2=AB^2+BC^2
c^2=9^2+12^2
c^2=81+144
c^2=225
c=15
HELLPPP PLEASE!!!!
What is the meaning of the the point (4, 22)?
and am I wrong for the first one?
Answer:
The meaning of (4,22) is Magi had run 4 mike's in 22.5 mins
Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest
Answer:
No, you are correct for the first one. The meaning of the point (4, 22) is that Magi took 22 minutes to run 4 miles.
Step-by-step explanation:
(4, 22) is written as (x, y) where x is the number of miles Magi ran and y is the number of minutes Magi took.
Thus, when Magi ran 4 miles, she took 22 minutes.
How would i know if a line on a graph has passed the vertical line test?
Answer:
The vertical line will only pass the graph line once.
Step-by-step explanation:
For example, I found an example online. The vertical line intersects a circle twice. But on a horizontal squiggly line, it only touches it once. So the circle is NOT a function but the squiggly line IS a function.
Hope this helps!! Brainiest is appreciated!! Happy Holidays!!!!
helpppppppppppppppppp
The 1st option is correct.
Answer:
m/15=-3
Step-by-step explanation:
When you see quotient it means to divide
is means equal
I hope this helps
Explain, in terms of the structure of the expression for L(t) , why Lincoln's balance can never be 499.
Answer:
after 19 years, Helen's balance is still larger than Lincoln's but after 20 years, Lincoln's balance will be larger than Helen's.
Step-by-step explanation:
If angle 2=3x+17 and angle 3 = 5x- 21 what is angle 1
Answer:
(3x - 17)
Step-by-step explanation:
hope this helps
What is the square root of 5900?
Answer:
76.81
Step-by-step explanation:
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I NEED HELP WITH THIS ASAP THERE IS ALSO ONE MORE QUESTION TO THIS PROBLEM PLEASE HELP
Answer:
whoa hold up there friend
Step-by-step explanation:
it will be 4,6,8,10 and the 2nd one is $10,$15,$20,$25
28/n=7/9 help me with this
Answer:
n = 36
Step-by-step explanation:
[tex]\frac{28}{n}[/tex]=[tex]\frac{7}{9}[/tex]
=> 28 x 9 = n x 7
=> 252 = 7n
=> n = 252 ÷ 7 = 36
Answer:
n= 36
Step-by-step explanation:
solve for n by cross multiplying
Hope this helped you :)
Please help me I can't figure this out.
Answer:
C. 256 square inches
Step-by-step explanation:
if each side of the cube is 8, and the height is 4 your equation would be 8x8x4=256
What's the average between 63 and 162
Answer:
112.5
Step-by-step explanation:
The average is calculated as
average = [tex]\frac{sum}{count}[/tex], then
average = [tex]\frac{63+162}{2}[/tex] = [tex]\frac{225}{2}[/tex] = 112.5
Evaluate 2x+5(x-8) when x = 2
How much is left on the card after Carl has seen the maximum number of movies
Answer:
how much was on it and how many is the maximum movies
Step-by-step explanation:
$9.05 - 75cents =
hi guys answer this calculation with the working pls
Answer: 9.05-0.75=$8.3
Step-by-step explanation:
kyle has $1.60 in change in his pocket. He has the same number of quarters as nickels. He has 4 more dimes than quarters. How many of each coin does he have?
Ellis is making some beef burgers for his friends. His recipe 500g of beef mince and 120g of cheese to make four burgers. He buys 1.5 of mince and 400g of cheese, and makes as many burgers as possible. How much cheese will he have left over
Given :
Ellis is making some beef burgers for his friends.
His recipe 500g of beef mince and 120g of cheese to make four burgers.
He buys 1.5 of mince and 400g of cheese, and makes as many burgers as possible.
To Find :
How much cheese will he have left over.
Solution :
500 g and 120 g of beef mince and cheese respectively make 4 burgers.
125 g and 30 g of beef mince and cheese respectively make 1 burgers.
Now, we will keep increasing the ingredients until there is any shortage of any ingredients.
1000 g and 240 g will make 8 burgers.
1500 g and 360 g will make 12 burgers.
1625 g and 390 g will make 13 burgers.
Cheese left is ( 400 - 390 ) g = 10 g.
Therefore, 10 grams of cheese will be left.
Find the product. Write your answer as a fraction in simplest form.
-3/10 × (-8/15)=??
Answer: simplify the expression
4/15
Answer:
8/15 is already in the simplest form
Step-by-step explanation:
solve by completing the square or square root method x^2-4x+9=0?
Please use numbers
The angle of elevation to an airplane viewed from
the control tower at an airport is 7º. The tower is
200 feet high and the pilot reports that the altitude is
5200 feet. How far away from the control tower is
the airplane? Round your answer to the nearest foot.
(x - 2)^5 binomial expansion
Which fraction represents the solution to -6/5/(-3/25) in simplest form?
A. -10
B. -18/125
C. 10
D. 18/125
The fraction represents the solution to (-6/5)/(-3/25) in the simplest form will be 10. Then the correct option is C.
What is Algebra?Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.
The fraction numbers are given below.
-6/5 and -3/25
Then the division of the numbers -6/5 and -3/25 will be given by putting a division sign between them. Then we have
⇒ (-6/5) ÷ (-3/25)
⇒ (-6/5) / (-3/25)
⇒ (6/5) x (25 / 3)
⇒ 150 / 15
⇒ 10
The part that addresses the answer for (- 6/5)/(- 3/25) in the most straightforward structure will be 10. Then the right choice is C.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
ANSWER PLSSS!!!!!!
What is Ann's speed at 7 mins? give a reason to support your answer
Answer:
40 Miles per hour
Step-by-step explanation:
The answer is in the graph.
I need answer ASAP OLZ
Answer:
the second one
Step-by-step explanation:
A speed limit is 35 mph. A car is travelling 10 mph over the speed limit. I’d that a sum of 0
Answer:
The car is going 45 mph
Step-by-step explanation:
Since the speed limit is 35 mph and the car is 10 mph over the speed, we can add them to find out how fast the car is going. We can solve 35+10 which will give us 45. So it is not a sum of 0 but instead a sum of 45.
(hope this helped)
Answer:
35+10 =45
Step-by-step explanation:
add 10 to 35 then divide by 2
Solve for the unknown variable and verify your answer. 2.8(3d – 2) = –12.32 *
Answer?
Answer:
-.8
Step-by-step explanation:
divide both sides by 2.8
3d-2=-4.4
add two to both sides
3d=-2.4
divide both sides by 3
d=-.8