Answer:
A. is NOT the function.
Step-by-step explanation:
In a function, 1 input (the 3) can not have two differnt ouputs (8 and 9) meaning that this is NOT a dunction.
I hope this helps! :)
Which are solutions of x2 5x = 2? check all that apply. startfraction 5 over 2 endfraction startfraction startroot 33 endroot over 4 endfraction startfraction 5 over 2 endfraction startfraction startroot 33 endroot over 2 endfraction startfraction 5 over 2 endfraction minus startfraction startroot 33 endroot over 2 endfraction startfraction negative 5 over 2 endfraction minus startfraction startroot 33 endroot over 2 endfraction startfraction negative 5 over 2 endfraction startfraction startroot 33 endroot over 2 endfraction
Answer:
x = -5/2 + root(33)/2 or x = -5/2 - root(33)/2
Step-by-step explanation:
ok so your computer is
saying:
x^2 + 5x = 2
and takes the 5 divides it by 2 and squares the result
x^2 + 5x + 25/4 = 2 + 25 /4 but then replaces a trinomial with a binomial
(x + 5/2)^2 = 2 + 25/4 = 33/4
solving
x = -5/2 + root(33/4) or x = -5/2 - root(33/4)
or
x = -5/2 + root(33)/2 or x = -5/2 - root(33)/2
Answer:
C and D
Step-by-step explanation:
correct on edge
What is the equation of the line that passes through the point (-5,-2) and has a slope of 3/5?
Answer:
y = 3/5x + 1
Step-by-step explanation:
Formula:
y - y1 = m(x - x1)
Plug in:
y - (-2) = 3/5(x - (-5))
Two negatives make a positive:
y + 2 = 3/5(x +5)
Distribute 3/5 to (x + 5):
y + 2 = 3/5x + 3
Get y by itself by - 2:
y = 3/5x + 1
Hope this helps you :)
Is rectangle efgh the result of a dilation of rectangle abcd with a center of dilation at the origin? why or why not? yes, because corresponding sides are parallel and have lengths in the ratio four-thirds yes, because both figures are rectangles and all rectangles are similar. no, because the center of dilation is not at (0, 0). no, because corresponding sides have different slopes.
The rectangle is symmetrical about the y-axis. Then both the figures are rectangles and all the rectangles are similar. Then the correct option is B.
What is a rectangle?It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.
The rectangle EFGH is dilated of the rectangle ABCD with a center of the dilation at the origin.
From the figure, it is clear that the rectangle is symmetrical about the y-axis. Then both the figures are rectangles and all the rectangles are similar.
More about the rectangle link is given below.
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HELPPP frenss!!! HURRY
Answer:
x=-7
y=2
Step-by-step explanation:
6x+9y=-24
3y=6
therefore, 9y=18,
and 6x=-42
x=-7
y=2
A b c d or e what one
Answer: A its B
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
if y = 0
0 = -2x + 4 _ eq 1
0 - 4 = -2x
-4 = -2x
divide through by 2
x = -4 ÷ -2
x = 2
if x = 0
y = -2(0) + 4_ eq 2
y = 0 + 4
y = 4
:.(x,y) = (2,4)
Find the area of each shaded region.
Answer:
Step-by-step explanation:
What is the volume of the figure below if a = 8 units and b = 6 units?
A.
536 cubic units
B.
704 cubic units
C.
256 cubic units
Answer:
704 cubic units
Step-by-step explanation:
First let's calculate the volume of the cube. The formula to calculate the volume of a cube is V = a^3, a being the edge length of the cube. So we need to cube the value of a, which is 8. 8 cubed is 512 cubic units.
Now we need to calculate the volume of the triangular prism. The formula to calculate the volume of a cube is V = 1/2b * a * h, a being the side edge length of the prism, b being the height of the triangular side, and h being the base edge length of the triangular side, if that makes any sense (easier to explain visually). h and a are equal to the given a, which is 8 in this case. And b in the formula is equal to b in the given problem. So we substitute the values into the formula: V = (1/2*6) * 8 * 8 = 3 * 64 = 192 cubic units.
Now we take the sum of both of the figures:
512 + 192 = 704 cubic units.
If Dylan buys a book that is 25% off, what percent of the original price does Dylan pay?
Answer:
75 percent is your answer
Consider the diagram below, where h represents height and 2 represents length.
Which of the following represents the approximate area of both figures?
Answer:
Both figures have an area of (6hl) by Cavalieri's Principle for two-dimensional figures.
Step-by-step explanation:
Math Nation
Find the value of x
I need the answer ASAP
Answer:
15
Step-by-step explanation:
i kinda remember i think
2(x+8)=46
laws of exponents:
Squares and Square roots:
√9a¹⁶b³⁶
Step-by-step explanation:
Square root is equivalent to 1/2 power:
[tex] {(9 {a}^{16} {b}^{36} )}^{ \frac{1}{2} } [/tex]
Square root of 9 is 3. Multiply the exponents by 1/2 to get:
[tex] 3{a}^{8} {b}^{18} [/tex]
Fatoumata owns a small business selling ice-cream. She knows that in the last week 13 customers paid cash, 39 customers used a debit card, and 5 customers used a credit card.
Based on these results, express the probability that the next customer will pay with a debit card as a percent to the nearest whole number.
Answer:
40
Step-by-step explanation:
40 because 39 will round up to 40 by 1
The probability in percentage that the next customer will pay with a debit card will be 68.42%.
What is probability?Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences. Then the probability is given as,
P = (Favorable event) / (Total event)
She knows that in the last week, 13 customers paid cash, 39 customers used a debit card, and 5 customers used a credit card.
The probability that the next customer that will pay with a debit card will be given as,
P = 39 / (13 + 39 + 5)
P = 39 / 57
P = 0.6842 or 68.42%
More about the probability link is given below.
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What is an equation of a line in point-slope form, that passes through (1, - 7) and has a slope of -⅔
Answer:
[tex]y+7=-\dfrac23(x-1)[/tex]
Step-by-step explanation:
Use the point-slope form of a linear equation: [tex]y-y_1=m(x-x_1)[/tex]
where:
[tex]m[/tex] = slope[tex](x_1,y_1)[/tex] = point on the lineGiven:
[tex]m=-\dfrac23[/tex][tex](x_1,y_1)=(1,-7)[/tex]Substitute the given values into the formula:
[tex]\implies y-(-7)=-\dfrac23(x-1)[/tex]
[tex]\implies y+7=-\dfrac23(x-1)[/tex]
help help helpppppp.fasttttttt.
Answer:
23.6
Step-by-step explanation:
[tex]c=2\pi r[/tex]
The diameter of the cirle is 7.5 m. To find the radius you would take half of the diameter.
7.5 / 2 = 3.75
[tex]c=2\pi 3.75[/tex]
Then you multiply them
your answer is
23.5619
then you round
23.6
Hope this helps!
A cylindrical tank is having water pumped in at a
rate of 45 liters/minute and is releasing water at
the bottom at a rate of 25 liters/minute. After five
minutes, what is the net change in the volume of
the water in the tank in liters?
The net change in the volume of the water in the tank in liters would be 100 liters.
How to find the change in volume?We can calculate the released in released with the released between the water released from the water released .
Quantity of water pumped in per minute = 45 liters
Quantity of water released per minute = 25 liters
Number of minutes = 5 minutes
Total water pumped in = 45 liters × 5 minutes
= 225 liters
Total water released = 25 liters × 5 minutes
= 125 liters
Net change in the volume of the water in the tank in liters
= Total water pumped in - Total water released
= 225 liters - 125 liters
= 100 liters
Learn more about cylindrical shape:
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what is the solution set of 2/5 (x+4) -3/5 (2x+3) = 2/5(2-x)-1
Step-by-step explanation:
2/5(x+4) - 3/5(2x+3) = 2/5(2-x)-1
2/5(x+4)-3/5(2x+3) = 2/5x-1/1(2-x)
2/5(x+4)-3/5(2x+3) = -2/5(2-x)
2/5x+8/5 - 6x/5 + 9/5 = -4/5 - (-2x/5) (-x- = +)
2x/5 + 8/5 - 6x/5 + 9/5 = -4/5 + 2x/5
(take like terms)
2x/5 - 6x/5 - 2x/5 = -4/5 - 9/5 - 8/5
( Find their L.C.M ) (5 is the LCM)
2x - 6x -2x / 5 = -4 - 9 - 8 / 5
-10x / 5 = -13 / 5
( cross multiply)
-50x = -65
x = -65/50
x = -1.3 ( decimal)
or x = 13/10 (improper fraction)
or x = 1 ³/10 ( mixed fraction).
Hope this helps.
Good luck.
If you have any questions, you're free to ask.
help please help me
Answer:
19.6
Step-by-step explanation:
A = πr²
A = (3.14159)(2.5 in.)²
A = 19.6 in.²
A. 0.700
B. 0.635
C. 0.875
D. 0.750
Answer:
0.700 is the answer follow me please please
Please help me with this math problem!! Will give brainliest!! :)
Answer:
5 for both.
Step-by-step explanation:
Multiplying exponents rule with like bases;
Add powers with like bases.
So, if we look at x to the power of the blank multiplied by x to the power of 5, we know that 5 added to that unknown/blank power would equal in 10(using the multiplication of exponents rule), because in the results it says x^10.
Thus,
x to the power of __ · x to the power of 5 = x to the power of 10
And, 5 would make a solution for the blank, because;
x to the power of 5 · x to the power of 5 = x to the power of 10, which is true because their exponents added together would be 10 → (5 + 5).
Now, if we look at y to the power of 3 multiplied by y to the power of the blank, we know that 3 added to the unknown/blank power would equal in 8(using the multiplication of exponents rule) because in the results says y^8.
Thus,
y to the power of 3 · y to the power of __ = y to the power of 8
And, 5 would make a solution for the blank, because;
y to the power of 3 · y to the power of 5 = y to the power of 8, which is true because their exponents added together would be 8 → (3 + 5).
Therefore, 5 would be the answer.Overall you're basically just multiplying all those exponents together.
SOMEONE HELP ME! MATH
Answer:
50%
Step-by-step explanation:
The end goal here is to find the total area of the entire figure from the center to the outer radius D. Then take the ratio of region B with respect to the total area, which will give you the probability of landing in the area B.
Circle A has a radius of 4. Circle B has a radius of 8. Circle C has a radius of 12. Circle D has a radius of 16. Therefore, the total area of the dartboard is given by:
[tex]A_{total}=\pi r^2=\pi (16)^2=256\pi[/tex]
The area of the region B can be found by thinking of region B as a shaded region between two concentric circles A and C. The area of the circle C is given by:
[tex]A_C=\pi r^2=\pi (12)^2=144\pi[/tex]
The area of circle A is given by:
[tex]A_A=\pi r^2=\pi (4)^2=16\pi[/tex]
Therefore the area of region B would be:
[tex]A_B=144\pi -16\pi =128\pi[/tex]
Finally, the probability of landing in region B would be:
[tex]P=A_B/A_{total}=128\pi /256\pi =0.5[/tex]
It took a car 4 hours to travel 180 miles. If the car drove a steady speed, how fast was it going?
0.02 mph
180 mph
45 mph
Answer:
45 mph
Step-by-step explanation:
It took the car 4 hours to travel 180 miles
Then
It took the car 4/4 hours to travel 180/4 miles
Since 4/4 = 1 and 180/4 = 45
Then
It took the car 1 hours to travel 45 miles
Therefore ,the car was it going at 45 mph
Solve the equation 6
2 =
1
= 2-1.
4
Answer:
26
Step-by-step explanation:
welll i have no clue just guess i cant even read the question
solution to 8n is less than72
Answer:
n is less than 9.
Over the past 10 years, what is the warmest temperature recorded, in degrees Fahrenheit, for the month of December in Miami, Florida?
A card is selected at random from a deck of cards.
Determine the probability that the card selected is A 5
Answer:
8/52 = 4/26 =2/13
Step-by-step explanation:
A there are 4 aces
5 there are 4 5s
4+4=8
Solve the system by substitution.
4x + 2y = 10
x − y = 13
Answer:
[tex]\boxed{\tt (6,-7)}[/tex]
Step-by-step explanation:
[tex]\tt 4x + 2y = 10\\x - y = 13[/tex]
First Let's solve for x in x-y=13
[tex]\tt x-y=13[/tex]
Add y to both sides:
[tex]\tt x=13+y[/tex]
Now, Substitute x=13+y into 4x+2y=10:-
Let x=13+y
[tex]\tt 4(13+y)+2y=10[/tex]
[tex]\tt 52+6y=10[/tex]
Now, let's solve for y in 52+6y=10:-
[tex]\tt 52+6y=10[/tex]
Subtract 52 from both sides:-
[tex]\tt 6y=10-52[/tex]
[tex]\tt 6y=-42[/tex]
Divide both sides by 6:-
[tex]\tt \cfrac{6y}{6} =\cfrac{-42}{6}[/tex]
[tex]\boxed{\tt y=-7}[/tex]
Now, we'll Substitute y=-7 into to x=13+y to find "x":-
[tex]\tt x=13+y[/tex]
[tex]\tt x=13+-7[/tex]
[tex]\boxed{\tt x=6}[/tex]
___
How is the scale factor, surface area ratio and volume ratio related?
If two solids are similar with a scale factor of a/b, then the surface areas are in a ratio of [tex]\rm \left (\dfrac{a}{b } \right )^2[/tex].
If two solids are similar with a scale factor of a/b, then the volumes are in a ratio of [tex]\rm \left (\dfrac{a}{b } \right )^3[/tex].
What are the area and volume of similar solids?Two shapes are similar if all their corresponding angles are congruent and their corresponding sides are proportional.
Two solids are similar if they are the same type of solid and their corresponding radii, heights, base lengths, widths, etc. are proportional.
When two shapes are similar in two dimensions, the ratio of their areas is the square of the scale factor.
A comparable relationship holds in three dimensions as well.
Surface Area Ratio: If two solids are similar with a scale factor of a/b, then the surface areas are in a ratio of [tex]\rm \left (\dfrac{a}{b } \right )^2[/tex].
Volumes of Similar Solids; Just like surface area, volumes of similar solids have a relationship that is related to the scale factor.
Volume Ratio: If two solids are similar with a scale factor of a/b, then the volumes are in a ratio of [tex]\rm \left (\dfrac{a}{b } \right )^3[/tex].
Learn more about the area here;
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If one lip balm takes 5 minutes and I spend 2 hours making lil balms how many lil balms would there be?
Answer:
24 balms
Step-by-step explanation:
2 hours is 120 minutes
120 minutes / (5 minutes/balm) = 24 balms
The function y = |x + 6| is a transformation of the parent function
y = |x|.
The graph of the function is shifted
units in the
-hand direction of the parent function.
Answer:
in the lefthand direction
Step-by-step explanation:
in |x + 6| , the +6 means that it shifts left by 6 units
if it was -6, it was should right by 6 units
a square coffee table has an area of 196 square inches.what is the perimeter
Answer:
56 in
Step-by-step explanation:
Square ....so each side is = x
x * x = area = 196
x^2 = 196
x = sqrt (196) = 14 in
perimeter = x + x + x + x = 56 in
Answer:
56 inches
Step-by-step explanation:
Given,
Area of square = 196 square inches
To find : Perimeter of the square = ?
Formula : -
Area of square = side²
side² = 196
= 14 x 14
side² = 14²
side = 14 inches
Formula : -
Perimeter of the square = 4 x side
perimeter of the square
= 4 x 14
= 56 inches