Answer:
12.5
Step-by-step explanation:
Vetrx is at: (0,-1) because other y values are repeated
y = a(x - 0)² - 1
y = ax² - 1
Using (1,0.5)
0.5 = a(1)² - 1
a = 1.5
f(x) = 1.5x² - 1
f(-3) = 1.5(-3)² - 1
f(-3) = 12.5
Answer:
D. 12.5
Step-by-step explanation:
8(3x+1) please give me your Brainly answer
Answer:
its 3
Step-by-step explanation:
Simplifying
8 = 3x + -1
Reorder the terms:
8 = -1 + 3x
Solving
8 = -1 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
8 + -3x = -1 + 3x + -3x
Combine like terms: 3x + -3x = 0
8 + -3x = -1 + 0
8 + -3x = -1
Add '-8' to each side of the equation.
8 + -8 + -3x = -1 + -8
Combine like terms: 8 + -8 = 0
0 + -3x = -1 + -8
-3x = -1 + -8
Combine like terms: -1 + -8 = -9
-3x = -9
Divide each side by '-3'.
x = 3
Simplifying
x = 3 this took forever to type hope it helped
Solve for r 12-1/5r=2r+1
Answer:
5r
Step-by-step explanation:
12−
1
5r
=
60r−1
5r
To solve the equation 12 - 1/5r = 2r + 1 for r, isolate the variable r on one side of the equation. The equation simplifies to 5 = 1, which is not possible. Therefore, there is no solution for r in this equation.
Explanation:To solve for r in the equation 12 - 1/5r = 2r + 1, we will isolate the variable r on one side of the equation.
Step 1: Combine like terms by adding 1/5r to both sides of the equation:
12 - 1/5r + 1/5r = 2r + 1 + 1/5r
12 = 2r + 1 + 1/5r
Step 2: Combine like terms by subtracting 1 from both sides of the equation:
12 - 1 = 2r + 1 - 1 + 1/5r
11 = 2r + 1/5r
Step 3: Combine like terms by finding a common denominator for the terms involving r:
11 = (10r + r)/5r
Step 4: Simplify the equation:
11 = (11r)/5r
Step 5: Multiply both sides of the equation by 5r to eliminate the denominator:
11 * 5r = 11r
55r = 11r
Step 6: Divide both sides of the equation by 11 to solve for r:
55r/11 = 11r/11
5r = r
Step 7: Divide both sides of the equation by r:
5r/r = r/r
5 = 1
No solution exists for this equation.
Learn more about Solving equations here:https://brainly.com/question/18322830
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Can anyone pls help me in this pls I will mark u as brainliest
Answer:
Step-by-step explanation:
the Pythagorean theorem can be used to find the distance between any two points on the COORDINATE PLANEany point where two sides of a polygon meet is called VERTEXThe ABSOLUTE VALUE of any number is written as |a|the distance around a figure is its PERIMETERAn ISSOSCELES TRIANGLE has at least two sides that are same lengthan EQUILATERA TRIANGLE has three sides that are the same lengtha SCALENE TRIANGLE has its three sides all different in lengthEvaluate 9 ÷ 3[(20 − 7) − 22].
0.18
0.34
27
51
A photo is printed on a 20-inch by 24-inch piece of paper. The photo covers 320 square inches and has a uniform border. What is the width of the border?
Answer: The width of the border is 4 inches
Step-by-step explanation: The paper frame has its dimensions given as 20 inch by 24 inch. That means the area of the paper frame would be;
Area = L x W
Area = 20 x 24
Area = 480 square inches.
However, the photo itself covers an area of 320 square inches of this total surface area. If the photo has a uniform border, that means the photo and the paper frame are best described as congruent parallelograms (similar rectangles).
The ratio of the area of both paper frame and photo is given as;
Ratio = 480 : 320
Ratio = 3 : 2
When the length of the photo frame is given as 24, the length of the photo would be
3/2 = 24/L
L = (2 x 24)/3
L = 48/3
L = 16
Having calculated one side of the photo as 16 inches and the area has been given as 320 square inches, the other side of the photo is now derived as;
Area = L x W
320 = 16 x W
320/16 = W
20 = W
The dimensions of the paper frame is given as 24 inches and 20 inches, while those of the photo is given as 20 inches by 16 inches. The difference in both dimensions is 4 inches on either side (24 - 20 = 4, and 20 - 16 = 4)
Therefore the width of the border is 4 inches
Chaz's new game room is shaped like a cube. It measures 15 feet across. If he wants to paint only the walls of the room, what is the surface area of the region he will paint?
The surface area of the region he will paint is 900 sq.ft.
Step-by-step explanation:
Cubical room measures - 15 ft
Chaz want to paint only the walls of room
Surface of painting region means Lateral surface area (excluding top and bottom)
Lateral surface area of cube = [tex]4a^2[/tex]
⇒ 4 * 15 *15
⇒ 900 sq.ft
The surface area of the region he will paint is 900 sq.ft.
Solve each of the following for x:
a. 10x-18=22
b. 1/2x+50=-5
c. 5(x+4)=100
Answer:
A) 4
B)-110
C) 16
Step-by-step explanation:
If you need to know how to solve it I'm here to help!
:)
factor this expression
r^2-2t-24
Step-by-step explanation:
First we will multiply 24 by 1 = 24 we have to find the factors of 24 that may add or subtract = 2
So
r2 - 6t + 4t - 24
r2 - 6t + 4 ( t - 6)
So the factors are ( r2 - 6t + 4) and (t - 6)
At this rate, how many miles will a ferry boat travel in 30 minutes
Miles=
Answer:
12 miles
Step-by-step explanation:
Please help me it’s on functions
Answer:
A
Step-by-step explanation:
In mathematics, a function is a relation between sets that associates to every element of a first set exactly one element of the second set. Typical examples are functions from integers to integers or from the real numbers to real numbers.
Help please thank you
Answer:
a^-7
Step-by-step explanation:
you would subtract the powers
-13 - -6 = -7
Answer:
1/a^19 (1 over a to the 19th power)
Step-by-step explanation:
when you divide, you subtract the exponents. -13 minus -6 is -19. when its a negative, you put it positive over 1. hope this helps :)
work:
a^-13/a^-6= a^-19
a^-19 --> 1/a^19
*****this is wrong, answer is 1/a^7
List the possible rational zeros.
m(x) = - 4x + 11x² +6x+14
How do I solve this
[tex]m(x)=-4x+11x^2+6x+14\\m(x)=11x^2+2x+14[/tex]
Equating the equation to 0 and solving it
[tex]11x^2+2x+14=0\\D=2^2-4*11*14=-612<0[/tex]
This equation has no solution, so we can't find rational zeros
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P.S. Hello from Russia
Which set of measurements forms a right triangle? Use the Pythagorean theorem: a2 + b2 = c2.
A) 15, 20, 25
B) 15, 21, 26
C) 14, 20, 25
D) 14, 21, 25
Answer:
A. 15, 20, 25.
Step-by-step explanation:
25^2 = 625
20^2 = 400
15^2 = 225.
Now 625 = 400 + 225 = 625 so it is choice A.
Roy took out a 30-year loan for $155,000 at an APR of 5.5%, compounded
monthly. Approximately what would be the total cost of his loan if he paid it
off 4 years early?
O
A. $37,842.06
O
B. $312,423.90
O
C. $316,825.20
O
D. $274,581.84
Answer:
$312,423.90
Step-by-step explanation:
Answer:
312,423.90
Step-by-step explanation:
Correct is b
sergio runs 6 miles in three days. At this rate, how many miles will he run in 20 dayshelp
Answer:
40 miles
Step-by-step explanation:
We have to find how many miles he runs per day. So if we divide 3 days by 3 to get 1 day, that means he would run 2 miles per day. So if we are trying to figure out how many miles he runs in 20 days, we do 20*2 which equals 40. Hope this helps.
(please mark me brianliest)
Answer:
40 miles
Step-by-step explanation:
He runs 2 miles per day
6 miles over 3 days is 2 miles per day
6 divided by 3 is 2
The length of the hypotenuse of a right triangle is 15 in. and one leg has length of 6 in. Find the length of the other leg.
Answer:
C. square root 189 in.
Step-by-step explanation:
IM giving 15 points please help!
a 42 meter lighthouse is observed by a ships officer at a 65 degree anlge to a path of the ship. At the next sighting, the lighthouse is observed at a 42 degree angle. To the nearest meter what is the distance between the 2 sightings?
Answer:
the hhh
Step-by-step explanation:
what is the length of bc in the triangle below
Answer:
This is how i solve it:
Pythagorean theorem:
a squared + b squared = c squared
12 squared + 16 squared = c squared
144 + 256 = 400
square root of 400 is 20
final answer: 20
Please Help!!!
Using a video camera positioned on a table, Kat records her hanging flower basket to find out what is eating the blooms. The camera is positioned so that the line of sight to the basket forms a 25° angle of elevation. The camera sits 42 inches above the ground and the base of the table is 72 inches from the base of the rod the flower basket hangs on. To the nearest tenth of an inch, how high above the ground is the flower basket?
Edit: I got the answer it's 75.5
Answer:
75.5
Step-by-step explanation:
The correct height of the flower basket above the ground is 75.5 inches.
To determine the height of the flower basket above the ground, we can use trigonometry. The camera forms a 25 ° angle of elevation with the flower basket, and the distance from the camera to the base of the rod is given as 72 inches. We also know that the camera is positioned 42 inches above the ground.
We can use the tangent function, which relates the angle of elevation to the opposite side (the height of the flower basket above the camera's height) and the adjacent side (the horizontal distance from the camera to the rod).
Let's denote the total height of the flower basket above the ground as h, and the height of the camera above the ground as [tex]h_c[/tex] = 42 inches. The height of the flower basket above the camera is then [tex]\( h - h_c \)[/tex].
Using the tangent function:
[tex]\tan(25\°) = \frac{\text{opposite}}{\text{adjacent}}[/tex]
[tex]= \frac{h - h_c}{72}[/tex]
We can solve for h:
[tex]\[ h - h_c = 72 \times \tan(25\°) \][/tex]
[tex]\[ h = 72 \times \tan(25\°) + h_c \][/tex]
Now we calculate the value of tan(25°) and substitute the known values:
[tex]\[ h = 72 \times \tan(25\°) + 42 \][/tex]
Using a calculator, we find that 25° is approximately 0.4663. Plugging this value into the equation gives us:
h = 72 x 0.4663 + 42
h = 33.5 + 42
h = 75.5
Therefore, the flower basket is approximately 75.5 inches above the ground.
PLEASE HELP!! DUE TODAY! I GIVE BRAINLIEST
Answer:
.54
Step-by-step explanation:
The probability of a non-glove item is: (# of non-glove items)/(total # of items)
There are 27 non-glove items and 23 gloves. That makes the probability of choosing a non-glove item:
27/(23+27)=
27/50 =
.54
There are 14 books on a shelf. 6 of these books are new.
(a) What is the ratio of used books to all books?
(b) What is the ratio of new books to used books?
?
a) 8:14
b) 6:8
yeah its telling me I'm short of words
calculate the number in the middle of 14.5 and 5.2
Answer:
9.85
Step-by-step explanation:
Because you need to find the mean by doing (14.5+5.2)/2
Answer:
the middle no is 7.25
14.5/3= 7.25
414 rupees
98942 is the accurate answer
Step-by-step explanation:
when the retailer buys the product, its price would be
480-[480*25/100] = 480-120 = 360 rupees.
if the retailer wants to sell it at a profit of 15%
360+[15/100*360] = 360+54 =414 rupees
Andrew draws triangle ABC. He then constructs a perpendicular bisector from vertex A that intersects side BC at point D. What can Andrew conclude, based on his drawing?
AB = BC
BD = DC
AD = BC
AC = BC
Answer:
BD = DCStep-by-step explanation:
A perpendicular bisector is a line segment that goes form a vertex to its opposite side. The important characteristic is that a perpendicular bisector intersects the opposide at the mid point and with a right angle, that's why is called perpendicular and bisector.
So, Andrew can conclude that side BC is divide equally, that is, BD = DC.
Therefore, the right answer is the second choice.
Based on the given information after drawing the triangle Andrew can conclude only BD = DC.
Use the concept of triangle defined as:
A triangle is a three-sided polygon, which has three vertices and three angles which has a sum of 180 degrees.
Given that,
Andrew draws triangle ABC.
He constructs a perpendicular bisector from vertex A.
The perpendicular bisector intersects side BC at point D.
Based on Andrew's drawing,
He can conclude that BD is equal to DC.
The perpendicular bisector from vertex A divides side BC into two equal parts, making BD and DC congruent.
However, Andrew cannot conclude that AB is equal to BC,
AD is equal to BC, or AC is equal to BC based on the given information.
Hence,
For this triangle Andrew can conclude only BD = DC.
Learn more about the triangle visit;
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Three coins are flipped,what is the Probability of getting one HEAD and two TAILs?
Answer:
3/8
Step-by-step explanation:
So, three outcomes give two heads and a tail (HHT, HTH, THH). Therefore, the probability of getting two heads and a tail is 3/8.
Answer:
3/8
Step-by-step explanation:
The possible outcomes are
HHH HHT HTH HTT
TTT TTH THT THH
where H is heads and T is tails
We want one head and two tails
HTT,TTH THT
There are 3 choices that fit
P ( one head and two tails is)= number of one head two tail/ total
= 3/8
What is the value of log8 512
Answer:3
Step-by-step explanation:
Logarithm base 8 of 512 is 3.
Answer:3
Step-by-step explanation:
2 dots plots with number lines going from 0 to 10. Plot A has 0 dots above 0, 1, and 2, 1 above 3, 2 above 4, 2 above 5, 2 above 6, 2 above 7, 0 above 8 and 9, and 1 above 10. Plot B has 0 dots above 0, 1, and 2, 1 above 3, 2 above 4, 3 above 5, 3 above 6, 1 above 7, and 0 dots above 8, 9 and 10. Which statement correctly compares the measures of center in the two sets of data? Both the mean and median are greater for Plot A than for Plot B. Both the mean and median are greater for Plot B than for Plot A. Plot A has a greater median than Plot B, but Plot B has a greater mean. Plot B has a greater median than Plot A, but Plot A has a greater mean.
Answer:
First one:
Both the mean and median are greater for Plot A than for Plot B
Step-by-step explanation:
Set A:
Mean:
[1×10 + 2×7 + 2×6 + 2×5 + 2×4 + 1×3]/10
= 5.7
Median:
Median position: (10+1)/2 = 5.5th value
(5+6)/2
Median = 5.5
Set B:
Mean:
[1×7 + 3×6 + 3×5 + 2×4 + 1×3]/10
= 5.1
Median:
Median position: (10+1)/2 = 5.5th value
(5+5)/2
Median = 5
Mean: A is greater
Median: A is greater
This is not for this exact question, but I realized there was no answer to: Which statement correctly compares the measures of center of the data in the dot plots?
Answer:
C: The mode is greater for Mrs. Ramos’s class.
Step-by-step explanation:
edg2020
Snsnnesnsnsnsmsmzmzmzmzzksskss
Answer:
nice
Step-by-step explanation:
mhm thats very nicee
What is the value of a?
Answer:
a = 2
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Sum the exterior angles and equate to 360, that is
66a + 56a + 31a + 27a = 360, that is
180a = 360 ( divide both sides by 180 )
a = 2
If the ratio of red socks to blue socks is 1:6, how many red socks would I have if I had 24 blue socks?
Answer:4
Step-by-step explanation:
1:6
Divide 6 by 24
you will get 4
Times your answer by 1 and then u will get your final answer
5c + cd, c = 1.5 d = 15
Answer:5(1.5) + 1.5(15)
=7.5 +22.5
=30
Answer:
5(1/5)+ 1/5(15) = 1 + 3 =4