Answer and Step-by-step explanation:
If the radius is 5, then we can plug 5 into the area of a circle equation.
A = [tex]\pi r^{2}[/tex]
A = [tex]\pi (5)^{2}[/tex]
A = 25[tex]\pi[/tex]
The area of a circle with radius 5 is 25[tex]\pi[/tex].
#teamtrees #PAW (Plant And Water)
2. Which pair of angles is not congruent? F. ∠1 and ∠7 G. ∠3 and ∠5 H. ∠4 and ∠6 I. ∠2 and ∠5
Answer:
I) ∠2 and ∠5
Step-by-step explanation:
Jerel runs 5 days each week. On each of 4 days, he runs 2.3 km. If Jerel runs a total of 14 km, how many kilometers does he run on the fifth day? a3.8km b4.8km c5.8km d4.7km
Answer:19
Step-by-step explanation:
Please help me with this question.
Step-by-step explanation:
Mean of the origibal set = 20
No. of terms = 10
Sum = Mean x No. of terms
= 20 x 10 = 200
The sum of additional numbers to make the new set of observstion is 4 + 8 + 12...... + 40 = 220
New Sum = 200 + 220 = 420
The no of terms stay the same
New Mean = New Sum/ N
= 420/10
= 42
Usually I dont need help with questions but this one really has me stuck:
Jan wants to buy a book that is regularly $34.99. Find the cost when it is on sale at 10% off.
Answer:
$31.491
Step-by-step explanation:
Price of the book=$34.99
Sale given=10%
Price of the book after sale=34.99-{(10/100)*34.99}
=34.99-3.499
=34.990-3.499
=$31.491
I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS
Answer:
768-452.16=315.84
Step-by-step explanation:
plzzz need help for this question
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Find the measure of each angle
Answer:
4x=80 and 5x=100
Step-by-step explanation:
4x+5x=180
9x=180
1/9 (9x)=1/9 (180)
x=20
4(20)=80
5(20)=100
-10=-8+6(w-5) simplify your answer as much as possible
Answer:
i hope this helps
Step-by-step explanation:
-10 = -8+6(w-5) (reorder)
-8+6(w-5) = -10 (add 8 to both sides)
6(w-5) = -2 (divide both sides by 6)
w-5 = -1/3 (add 5 to both sides)
w = 14/3 or 4 2/3
In ASTU, u = 84 inches, s = 13 inches and ZT=165º. Find the length of t, to the
nearest inch.
Answer:
60 i hope it right good luck
CAN AYONE PLEASE HELP ME WITH MY HOMEWORK ILL MARK BAINLYIST
Answer: v-(kx8)
Step-by-step explanation: plz mark me brainliest
Find the square root of -162 and please explain your answer
Answer:
12.7279221 i
Step-by-step explanation:
Round to 13 or 12.7
Katie wants to collect over a hundred seashells she already has 34 seashells in her collection each day she finds 12 more seashells on the beach Katie can use fractions of days to find seashells write an equality to determine the number of days D it will take Katie to collect over a 100 seashells. no explanation needed
Answer:
6
Step-by-step explanation:
The length of stay at a specific emergency department in Phoenix, Arizona, in 2009 had a mean of 4.6 hours with a standard deviation of 2.9. Assume that the length of stay is normally distributed.
a. What is the probability of a length of stay greater than 10 hours?
b. What length of stay is exceeded by 25% of the visits?
c. From the normally distributed model, what is the probability of a length of stay less than 0 hours? Comment on the normally distributed assumption in this example.
Answer:
a) the probability of a length of stay greater than 10 hours is 0.03144
b) the length of stay is exceeded by 25% of the visits is 6.5 hrs
c)
P( X < 0 ) = 0.0559
The probability of length of stay less than 0 hours is 0.0559, length of stay cannot be less than 0. When the normal model is used, we assume that the LOF is approximately normally distributed.
The LOF is better modeled by the normal distribution near the mean and worse in the tails.
The probabilities in the left tail for the vales of X < 0 can be neglected.
Step-by-step explanation:
Given that;
mean μ = 4.6
standard deviation σ = 2.9
let x represent length of stay;
a. What is the probability of a length of stay greater than 10 hours?
p( x > 10 ) = p( x-μ/σ > 10-4.6 / 2.9 )
= p( Z > 1.86)
= P( Z < - 1.86 )
FROM THE Z SCORE TABLE;( Z < - 1.86 ) = 0.03144
p( x > 10 ) = 0.03144
Therefore, the probability of a length of stay greater than 10 hours is 0.03144
b) What length of stay is exceeded by 25% of the visits?
p( X > x ) = 0.25
so
p( X < x ) = 0.75
p( x-μ/σ < x-4.6 / 2.9 ) = 75
p( Z < x-4.6 / 2.9 ) = 0.75 ----- 1
also, from the standard normal table; P( Z < 0.67 ) = 0.75 ------ 11
from equation 1 and 11
x-4.6 / 2.9 = 0.67
x-4.6 = 2.9 × 0.67
x - 4.6 = 1.943
x = 4.6 + 1.943
x = 6.543 ≈ 6.5
Therefore, the length of stay is exceeded by 25% of the visits is 6.5 hrs
c) From the normally distributed model, what is the probability of a length of stay less than 0 hours?
P( X < 0 ) = p( x-μ/σ < 0-4.6 / 2.9 )
= P( Z - 1.59)
from table;( Z - 1.59) = 0.0559
P( X < 0 ) = 0.0559
The probability of length of stay less than 0 hours is 0.0559, length of stay cannot be less than 0. When the normal model is used, we assume that the LOF is approximately normally distributed.
The LOF is better modeled by the normal distribution near the mean and worse in the tails.
The probabilities in the left tail for the vales of X < 0 can be neglected.
(its a practice question)
Answer:
your answer will be X=30
Step-by-step explanation:
[tex]85 = 3x - 5[/tex]
[tex]90 = 3x[/tex]
[tex]x = 30[/tex]
hope it helps you!!
Use the drop-down menus to complete the statements to match the information shown by the graph.
Answer:
wheres the graph tho
Step-by-step explanation:
????
Answer:
Where the graph idiot
Step-by-step explanation:
Help help thank you
help me FAST :> math problem 15 points come on please
Answer:
D
Step-by-step explanation:
z+nm is equiveland to mn+z since its the same equation but wrote in different positions.
Answer: the answer is D
Z + nm
19. Quadrilateral ABCD is a parallelogram. What is the measure of ZDAB? Show your work.
A
B.
5x-3
3x+17
D
С
Answer:
∠DAB = 133°
Step-by-step explanation:
Given - Quadrilateral ABCD is a parallelogram. ∠D = 3x + 17, ∠B = 5x - 3
To find - What is the measure of ∠DAB?
Proof -
We know that In a parallelogram, opposite angles are equal.
So, ∠A = ∠C and ∠B = ∠D
Now,
As ∠B = ∠D
⇒3x + 17 = 5x - 3
⇒17 + 3 = 5x - 3x
⇒20 = 2x
⇒x = 10
So,
∠B = 5(10) - 3 = 50 - 3 = 47
⇒∠B = 47°
Also, we know that
∠A + ∠B = 180°
⇒∠A = 180° - ∠B
⇒∠A = 180° - 47° = 133°
⇒∠A = 133°
⇒∠DAB = 133°
The tape diagram represents an equation.
W
1.3
2.7
Write an
equation to represent the image.
Answer:
w+1.3=2.7
Step-by-step explanation:
Answer:
1.3 + w = 2.7
Step-by-step explanation:
Hope this helps
5^-2 + 7^0
PLSSS HELP MEEE IM IN SCHOOL RIGHT NOW
TRY THIS
Step-by-step explanation:
Step-by-step explanation:
Given
[tex] {5}^{ - 2} + {7}^{0} \\ = \frac{1}{ {5}^{2} } + 1 \\ = \frac{1}{25} + 1 \\ = \frac{1 + 25}{25} \\ = \frac{26}{25} [/tex]
Hope it will help :)❤
Lei is icing some cupcakes. She has 3/4 cups of frosting. Each cupcake needs 3/16 cup of frosting. How many can she frost?
Answer:
4
Step-by-step explanation:
3/4÷3/16
3/4×16/3
3•16=48
4×3=12
48÷12=4
Which statement about the line in the graph is false?
The two triangles are similar.
The ratio of the horizontal side length to the vertical side length of each triangle is equal to the slope of the line.
The ratio of the vertical side length to the horizontal side length of each triangle is equal to the slope of the line.
The slope of the line is 6.
help please, thx <3
Answer: n=-42
Step-by-step explanation:
Take the given equation
-67 = n - 25
+25 +25
Add 25 to each side to cancel out the negative 25 on the right side
-67 + 25 = -42
n = -42
For keeping business rocords, every three mouths of a year is called a quater. How many months are equal to three-quaters of a year? Explain how you found your answer.
Answer:
9 months
Explanation:
3 times 3 is nine
If one quarter is 3 months. 3 of these quarters would have 9 months all together.
A robot can complete 3 tasks in 5/6 hour. Each task takes the same amount of time. It takes the robot 5/18 hour(s) to complete one task. How many tasks can the robot complete in one hour.
calculate the 25% of 6 hours 20 minutes
6 hours and 20 mintues = 380 mintues
25% of 380 = 95 mintues = 1 hour and 35 mintues
Step-by-step explanation:
your welcome also use the website calculator.net it had a percentage calculator
Answer:
The answer is 95 minutes.
Step-by-step explanation:
1. Convert 6 hours to minutes which would lead to 360 minutes.
2. 360 minutes + 20 minutes = 380 minutes.
3. Now find 25% of 380 minutes.
How I found 25%.
1. 50% of 380 = 190.
2. 50% of 190 = 95.
Now since the half of our base half is 95 then 2 halfes are 2 25% but we need 1 only so we can conclude that, 25% of 380 minutes is 95.
Hope this helped :).
The radius of a circle is 7 centimeters. What is the area?
r=7 cm
Give the exact answer in simplest form.
square centimeters
开
Answer:
49开
Step-by-step explanation:
I believe it's 153.9
Please help cus I don’t know
Answer:
D) 53°
Step-by-step explanation:
All interior angles of any triangle add up to 180°
? = 180° - 43° - 84°
? = 53°
Answer:
Its B. 53
Step-by-step explanation:
To find the unknown angel you need to add the number you already have AKA 43 and 84 you need to add up to 180 so 43+84+53= 180
Use the following coordinate plane to write the ordered pair for each point.
Step-by-step explanation: When finding the coordinates
of a given point, be very careful with your signs.
On the x-axis, left means negative and right means positive and
on the y-axis, down means negative, and up means positive.
So to find the coordinates for point A, we start at the origin,
which is the point (0, 0), and we move 2 units to the left and 4 units up.
So that's the point (-2, 4).
Remember to go left or right first, then up or down.
So for point B, we go 0 units to the left or right and 3 units down.
So that's the point (0, -3).
For point C, we move 4 units to th
right and 4 units down so tha's (4, -4).
On a drive from one city to another, the person averaged 51 mph. If he had been able to average 72 mph, he would have reached his destination 7 hrs earlier. What is the driving distance between one city and the other?
Answer: 1224 miles
Step-by-step explanation:
Given
the average speed of a person is 51 mph
If speed is increased to 72 mph, he would have reached 7 hr earlier
Suppose d and t be the distance and time taken
[tex]\Rightarrow t_1=\dfrac{d}{51}[/tex]
If the speed is 72 mph
[tex]\Rightarrow t_2=\dfrac{d}{72}[/tex]
Also, [tex]t_1-t_2=7[/tex]
[tex]\Rightarrow \dfrac{d}{51}-\dfrac{d}{72}=7\\\\\Rightarrow \dfrac{1}{51}-\dfrac{1}{72}=\dfrac{7}{d}\\\\\Rightarrow \dfrac{24-17}{1224}=\dfrac{7}{d}\\\\\Rightarrow \dfrac{7}{1224}=\dfrac{7}{d}\\\\\Rightarrow d=1224\ miles[/tex]