The area of a circular plate is 625 pi square inches. If the radius of the circle is tripled, what is the area of the new circle?
A).1090 π in²
B).1270 π in²
C).6715 π in²
D).5625 π in²
Answer:
D.) 5625 pi inches squared
Step-by-step explanation:
square root of 625 = 25
25 x 3 = 75
A= pi r(squared)
A= 75squared pi
A= 5625 pi inches squared
Answer: D
Step-by-step explanation:
Calculate (1.6) · (0.215). Show your reasoning.
Answer:
0.344
Step-by-step explanation:
i cant show reasoning its just 1.6 times 0.215
Please help !!!!!!
Clare is deriving the quadratic formula by solving ax^2+bx+c=0 by completing the square.
She arrived at this equation:
(2ax+b)^2=b^2-4ac
Briefly describe what she needs to do to finish solving for I and then show the steps.
Answer:
Clare starts with:
a*x^2 + b*x + c = 0
And she gets to:
(2*a*x + b)^2 = b^2 - 4*a*c
Now we want to show the final steps to solve the equation (isolating x)
First, we apply the square root to both sides:
[tex]\sqrt{(2*a*x + b)^2} = \sqrt{(b^2 - 4*a*c)}[/tex]
Because the square root has two solutions, (one negative and one positive), we will write:
[tex]2*a*x + b = \pm \sqrt{b^2 - 4*a*c}[/tex]
Now we subtract b in both sides:
[tex](2*a*x + b) - b = \pm \sqrt{b^2 -4*a*c} - b[/tex]
[tex]2*a*x = \pm \sqrt{b^2 -4*a*c} - b[/tex]
Now let's divide by 2*a in both sides:
[tex]2*a*x/(2*a) = \frac{\pm \sqrt{b^2 -4*a*c} - b}{2*a}[/tex]
[tex]x = \frac{\pm \sqrt{b^2 -4*a*c} - b}{2*a}[/tex]
What is the distance between the integers (-15) and (-9) on a number line?
Answer: 6 Im sure
Step-by-step explanation:
Simplify this expression by combining the like terms
5m + g + 6 + 3g - 2m + k
Answer:
3m+4g+6+k
Step-by-step explanation:
You are buying a home for $158,950. You have an annual interest rate of 3.72% over the next 30 years. How much is the final cost of the house after 30 years? Round to the nearest hundredth
Can someone help me with this
Answer:
C
Step-by-step explanation:
1. Absolute values are in the shape of a V, so the answer is automatically C.
2. If you did not know that, you can see that the graph is a function because it passes the vertical line test. This rules out option A. By looking at the graph, you can see it passes the x-axis twice, meaning that it has 2 x-intercepts. This rules out option B. X-intercepts always have a y-coordinate of 0, so we can rule out option D. The only option left after this is C.
Marlene estimates that 48% of 1,220 is about 600. Which estimates describes why this is a reasonable estimate?
Answer:
By rounding
Step-by-step explanation:
48 % means 48 percent which 48 out of 100.
48% of 1220
= 48/100*1220
= 0.48*1220
=585.6 which is almost equal to 600
1) By rounding
Now if we round 48% we get 50 % as 8 > 5 and 1 is added to 4 making it 5 in tens place leaving 0 in unit's place.
So 50% of 1220
0.50*1220= 610
Again rounding 610 would give 600 as 1 is less than 5 and we drop it out from the tens place leaving zero behind.
2) Complementary
IF we subtract 48% from 100% we get 52%.
So 52% of 1220 would be 634.4
IT again can be rounded in 2 ways Either 52% can be rounded to 50% and 634.4 can be rounded to 600.
Both would give 600
Please help me with my work
Answer:
If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.
Step-by-step explanation:
Answer:
Down below is the answer.
Step-by-step explanation:
So, lets remember that the pythagreon theorm is only useable in right traingles.
The formula for the pythagreons theorm is A^2+B^2=C^2
So basically, if this is not a right triangle, the two sides(4ft^2 and 3ft^2) will be equivelent to 5ft^2.
Lets solve the pythagroens theorm and plug in our values:
4^2+3^2=5^2
Now lets use the square roots:
16+9=25
COmbine the two numbers:
25=25
This is correct!
So yes, this is a right triangle.
HOpe this helps! :)
"Y 1
Themba deposited R100 000 in the bank which offers 5,5% per annum simple interest
His intention is to buy a car after 4 years
1.1
Write interest rate as decimal per annum
Answer:
1 ramdhjajdjejjejdnsns
The line OP is a radius of a circle, centre O draw accurately the circle using compasses
Answer:
put the pointy end of the compass on the end line point then draw a circle at a measurement of 3cm 4 cm or 5 cm
Find the measurement of the exterior 1
Answer:
Sorry, but I can't see this well! I am on lapton, and it is impossible to tilt the whole thing over.
Answer: A: 145 degrees
Step-by-step explanation:
PLEASE HELP GUYS AND GIRLS
Which shape contains exactly two pairs of parallel lines?
Trapezoid
Rectangle
Equilateral triangle
Acute triangle
Answer:
Rectangle is the correct answer hope it helps you have a great day keep smiling be happy stay safe ☺️
A rectangle is a special type of parallelogram. Any parallelogram has two pairs of opposite parallel sides. A rectangle is a parallelogram where all four angles are the same, and all four angles are 90 degrees.
Keep in mind that not all parallelograms are rectangles, but any rectangle is always a parallelogram.
In slight contrast, a trapezoid has exactly one pair of parallel lines, while the other pair of opposite sides are not parallel. Triangles of any kind can be ruled out because they don't have any parallel sides at all.
Jesse and her family are painting their house. When they first started, they bought four 16-cup cans of paint. In order to paint their house, it took all of those cans plus they needed another 16-cup can of paint. How many cups of paint did it take Jesse and her family to paint their house?
Answer:
80
Step-by-step explanation:
yes
A quality control inspector tested 235 CDs and found 8 defective
What is the relative frequency of finding a defective CD?
Answer:
235 C D s =
8 =
Step-by-step explanation:
Describe fully the single transformation that takes shape P to Q
Answer:
Triangle P is scaled up 3 times to become triangle Q.
thank you. please answer asap!
Answer:
96 i think
Step-by-step explanation:
I think its 96. just multiply all the sides
Ms. Acton spent $205.60 at Target. If the sales tax is 10%, what was her final bill?
Answer:
$217.94
Step-by-step explanation:
Can somebody plz help answer these questions correctly thanks (only if u know how to do this) :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST...promise :DDDD
If the graph of f(x) contains the coordinates (0, 1) and (4, 16), which of the
following coordinates must be on the graph of the inverse of f(x)?
a. (-4,-16)
b. (16,4)
c. (0,-1)
d. (-16,-4)
e. (0,1)
Answer:
b. (16 , 4)
Step-by-step explanation:
f(x): 0 -> 1 , 4 -> 16
f⁻¹(x): 1 -> 0 , 16 -> 4
which of the following statements best describes the association
Answer:
C
Step-by-step explanation:
For one, it's negative so all positive answers can be eliminated.
Secondly, the y axis is hit on positive 3. No point even hits negative 3.
Knowing that, the only choice left is C.
Hola, ¿cómo está tu día?
Answer:
Muy bien, y usted?
Answer:
es una pregunta o necesitas eso traducido al inglés ¿?
Determine the slope of the line.
Answer:
2/3
Step-by-step explanation:
find 46% of 70. Do not round your answer.
Answer:
the answer is 32.2
Step-by-step explanation:
Not rounded
hope this helps
Answer:
32.2
Step-by-step explanation:
70 divided by 100 times 46
Find the area of the shape below
Answer:
2 times 2 =4 4 times 4 =16 then you add I think
Is this shape a polyhedron? If it is what is the name of the shape?
does the letter v contain a corresponding angle?
Plz help will give brainalist. Please try...
Its 382.98 the answer
please help me ill mark as brilliant if its correct:)
Answer:
(-3, -1/2)
Step-by-step explanation:
[tex]-\frac{2}{3} (-3) - 4*(-\frac{1}{2}) = 2-(-2) = 4[/tex] > 0