The equation of a circle is x^2 + y^2 = 56.25
Answer:
Step-by-step explanation:
General equation of circle with center at (0, 0) : x² + y² = r²
x² + y² = 56.25
x² + y² = 7.5²
Radius = 7.5 units
Center (0 , 0)
one Sunday, number of visitors of a zoo was 840. on Monday, the number of visitors is decreased to 420, by what percentage was it decreased ?
Answer:
half or 50%
Step-by-step explanation:
What is the Domain, Range, Decreasing, Increasing, Y-Intercept, X-Intercept, Maximum, and Minimum of the graph shown?
Step-by-step explanation:
I am not able to see the whole graph, but what I could see is that
domain=22
range=11
the x-intercept is there is no x-intercept!
y-intercept is 2
max is 10
minimum is 1
I am so sorry! But if you let me know about the decreasing and increasing values like that are they asking for? The greatest places in the graph where it increases or decreases?
Hope that helps :)
A hot water tap filled a bath in 7 1/2 minutes,while a cold water tap fills it in 5 minutes,how long will it take to fill the bath when both taps are turned on together?
Answer:
3 minutes
Step-by-step explanation:
Let's say that the bathtub is 15L
It would take 7.5 mins to fill 15L
15L/7.5 = 2L per minute
The other tap would take 5 minutes to fill 15L
15L/5 = 3L per minute
3L per minute + 2L per minute = 5L per minute
15L/5L per min = 3 minutes
Sorry for the delay. Accidentally pressed the answer button without the answer. Hope I helped.
PLEASE HELP ITS MATH!!!!!
Answer:
The first one, yes they are similar, they have at least two corresponding angles
my brother needs help with this !
Answer:
1. 20
2. 35
3. 20
4. 20
Step-by-step explanation:
Are u serious..... ඩඩඩඩඩඩඩ
What is the multiplier?
A. 0.123
B. 0.111
C. 9
D. 81
Answer:
it is eather d or b
Step-by-step explanation:
Find the midpoint between A (8, 2) and B (10, 4)
Answer:
(9,3)
Step-by-step explanation:
m={(x1+x2)/2,(y1+y2)/2}
m={(8+10)/2,(2+4)/2}
m={9,3}
Hope that helps :)
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Write and solve an equation to find the answer. From midnight to 6:00 am, the temperature rose 8°C. At 6:00 am, the temperature was − 20 ° C. What was the temperature at midnight?
Answer:
The temperature at midnight is -12 degree Celsius
Step-by-step explanation:
Given -
Temperature at 6:00 PM = -20 degree Celsius
Let the temperature at midnight be X degree Celsius
From midnight to 6:00 am, the temperature rose by 8 degree Celsius
X - (-20) = 8
X = 8-20
X = -12 degree Celsius.
The temperature at midnight is -12 degree Celsius.
Mateo has 60 wooden tiles in the shape of diamonds as shown below. He plans to glue these tiles side by side onto a tabletop. What will the area of the tabletop be?
Answer:
the base is 6 inches, the height is 4.5 inches. Multiply that by usinhg the formula A = bh your answer will be 27 then multiply that by 60 and your answer is 1,620.
Step-by-step explanation:
Using diagonals from a common vertex, how many triangles could be formed from a
24-gon?
Answer:
22 triangles in a 24-gon.
Step-by-step explanation:
24−2=22
There are 22 triangles in a 24-gon.
Answer:
13 triangles in a 15-gon
Step-by-step explanation:
15-2=13
A cake weights 900 g. Paul cuts it in 4 pieces. The biggest piece weighs as much as the 3 other pieces weigh together. What is the weight of the biggest piece?
Answer:500 g
Step-by-step explanation:
The area of a sign in the shape of a square is 219 square inches. Which measurement is closest to the side length of the sign in inches.
A: 55 in
B: 15 in
C: 7 in
D: 110 in
Answer:
B: 15 inches
Step-by-step explanation:
Find out how long is a side of the sign.
Square root 219 = 14.79
14.79 estimated to the nearest whole number =
15
A pizza parlor is creating a questionnaire to survey customers about their satisfaction with the taste of their pizzas. Which questions would be considered good questions to include on the survey?
Answer:
On a scale of 1 to 10, how satisfied are you with the taste of our pizzas?
Would you recommend our pizzas to your friends and neighbors? Please answer either yes or no.
Step-by-step explanation:
PLEASE HELP!! Solve for y.
Answer:
hypotenuse²=base²+height²
[tex] \sqrt{85 } {}^{2} = 6 {}^{2} + x {}^{2} \\ [/tex]
85=36+x²85-36=x²49=x²49½=xx=7Please help quickly
4x(3a + b + ab)
Answer:
you must find value of the variables
Step-by-step explanation:
82 is 66 percent of what?
Answer: 80.49.
Can u give me brainliest
Step-by-step explanation:
Will mark brainly
ASAP
Answer:
7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
please help!!
Find the value of x.
Answer:
x = 4
Step-by-step explanation:
2(8x) = 64
x = 4
Students recorded the amount of liquid in fluid ounces each of them drank in one day. The box plot shows the summary of the results. Which statement best describes the data represented in the box plot?
Which statement best describes the data represented in the box plot?
Half the students drank from 78 to 114 fluid ounces.
The greatest number of students drank from 30 to 78 fluid ounces.
The data represent 78 student responses.
The mean number of fluid ounces that the students drank is 78.
Answer:
the data represent 78 students reponses
Answer:
the data represent 78 students reponses
Step-by-step explanation:
Can someone help me please algebras hard
Answer:
A: -25+100
B: t=4 seconds
C: 124ft
Step-by-step explanation:
Ive attached my work
Hope it helps!
Sorry for slow response :/
Solve the following quadratic by factoring. x² + 3x – 40 = 0
A. X = -8, x=5
B. X= 8, x=5
C. X=8,x= -5
Answer:
That would be A!
Step-by-step explanation:
Please tell me if i made a mistake or misunderstood!
х
NK
a
1
2
3
у
2
4.
8
16
Is the table linear, exponential, Quadratic, or not a
function at all?
Answer:
Is Linear
Step-by-step explanation:
Because The number said that
Fidel has a rare coin worth $550. Each decade, the coin's value increases by %10
Which kind of function best models the relationship between time and the coin's value?
Answer: Exponential
Step-by-step explanation: I did it in khan
will give brainlest <3
What are the names of the angels shown in this diagram?
A. ABC, ABD
B. ABC
C. ABD, DBC
D. ABC, ABD, DBC
Answer: D
Step-by-step explanation: mark me brainliest
help ASAP i'll mark u brainliest pls
Answer:
About 4 hours.
Step-by-step explanation:
To find the answer we will add both percentages of Watching TV and Homework. 8% + 13% = 21%. Now we will divide 100 by 21 and we get 4 hours a day.
What is the product?
(9t - 4)(-9 t - 4)
negative 81 t squared minus 16
negative 81 t squared + 16
negative 81 t squared minus 72 t + 16
negative 81 t squared + 72 t + 16
Answer:
The product is -81 t² + 16
Step-by-step explanation:
The product of two binomials (ax + b)(cx + d), where a, b, c, and d are constant
Multiply (ax) by (cx) ⇒ 1st × 1st
Multiply (ax) by (d) and (b) by (cx) ⇒ ext-reams and nears
Add the two products ⇒ like terms
Multiply (b) by (d) ⇒ 2nd × 2nd
Let us find the product of (9 t - 4) and (-9 t - 4)
Multiply the 1st two terms
∵ (9 t)(-9 t) = -81 t²
Multiply the ext-reams
∵ (9 t)(-4) = -36 t
Multiply the nears
∵ (-4)(-9 t) = 36 t
Add the like terms
∵ -36 t + 36 t = 0
Multiply the 2nd two terms
∵ (-4)(-4) = 16
Write the answer
∴ (9 t - 4)(-9 t - 4) = -81 t² + 0 + 16
∴ (9 t - 4)(-9 t - 4) = -81 t² + 16
The product is -81 t² + 16
A rectangular plot of land is represented on a map by the vertices (10,10), (10, 90), (70.5, 90), and (70.5, 10), where the x- and y-coordinates are measured in yards. What is the area of the plot of land?
Answer:
Area of the plot of the land is 4840 square units.
Step-by-step explanation:
Let's draw the rectangle approximately on an x y plane. That would help us to find the length and width of the rectangle.
Answer: 4,480yd^2
Step-by-step explanation:
You have the x and y coordinates of the vertices (10, 10), (10,90), (70.5,90), and (70.5, 10) you have the coordinates: x and y as the first two which are the ones in bold. From that you do 70.5-10= 60.5.
Then you subtract the x and y coordinates again, which are underlined. From that do 90-10=80
Last you do 60.5x80=4,840 yards squared
Mark me brainliest!!!
Hope this Helps!!!
Two sides of a right triangle measure 222 units and 444 units. What is the area of the square that shares a side with the third side of the triangle?
Answer:
the area of the square = x² = 147,852 ft²
Step-by-step explanation:
Given;
two sides of a right triangle, = 222 units and 444 units
let the third side of the right triangle that shares a side with a square = x
the third side is obtained by applying Pythagoras theorem, and assuming the third side to be either adjacent or opposite side.
x² = 444² - 222²
x² = 147,852
x = √147,852
x = 384.52 ft
Therefore, the area of the square = x² = 147,852 ft²
Answer:
20 = x^2
Step-by-step explanation:
to find c^2 you need to do:
a^2 + b^2 = c^2
so- 2x2 + 4x4 = 4+16= 20
20 = x^2 and since x is squared you do not find the square root
In a javelin throw competition, five athletics score 56, 58, 63, 57 and 61 meters. What are their Mean and Median?
Answer:
Mean = 59
Median = 58
Step-by-step explanation:
Given the data for a Javelin throw :
56, 58, 63, 57 61 meters
Reordering the data: 56, 57, 58, 61, 63
Mean, m = Σx / n
n = sample size = 5
m = (56 + 57 + 58 + 61 + 63) / 5
m = 295 / 5
m = 59
The median : 1/2 (n+1)th term
1/2(5 +1) the term
1/2(6) = 3rd term
Median value = 58