ANSWER FOR BRAINLIEST AND 50 POINTS:
The high temperatures for the last seven days are: High Temperatures: 81, 78, 83, 89, 80, 87, 78
Find the MEAN of the temperatures. Round to the nearest tenths place.
A. 82.3
B. 89
C. 83
D. 78
Answer:
Mean of temperatures = 82.3 (Approx.)
Step-by-step explanation:
Given:
Number of days = 7 days
Temperatures in 7 days = 81, 78, 83, 89, 80, 87, 78
Find;
Mean of temperatures
Computation:
Mean = Sum of all observation / Number of observation
Mean of temperatures = Sum of all seven days temperature / Number of days
Mean of temperatures = [81 + 78 + 83 + 89 + 80 + 87 + 78] / 7
Mean of temperatures = 576 / 7
Mean of temperatures = 82.2857
Mean of temperatures = 82.3 (Approx.)
The area of a rectangular fountain is x2 + 12x + 20 square feet. A 5-foot walkway is built around the
fountain. Find the dimensions of the outside border of the walkway.
Answer:
x + 7 ft and x + 15 ft as the dimensions of the outside border of the walkway.
Step-by-step explanation:
[tex]x^{2} +12x + 20 = (x + 2)(x + 10)[/tex]
The dimensions of the fountain is x + 2 and x + 10
Adding the 5-ft walkway, we get x + 7 ft and x + 15 ft as the dimensions of the outside border of the walkway.
Question: Find the range of values of x such that the quadratic function f(x) = 6 + 5x - x² does not Intersect the x-axis.
help me pls 20 points
Thankss
Step-by-step explanation:
(x= -1)(x=6)
[tex] {x}^{1} = - 1. {x}^{2} = 6[/tex]
brainiest pls
What is the highest degree of the graph shown above?
a 5
b 60 degrees
c 4
d Not enough information to answer the question
Find the value of x and y that will make each quadrilateral a parallelogram.
Answer:
this question is a bit confusing.
Step-by-step explanation:
here's what I think is the answer
9x-6=6x+9
3x=15
x=5
The point-slope form of a line that has a slope of –2 and passes through point (5, –2) is shown below.
y + 2 = negative 2 (x minus 5)
What is the equation in slope-intercept form?
Answer:
y= -2x+8
good luck on your assignment
What is the slope of the line that passes through the points (6,5) and (7,14)?
Answer:
y = 9x - 49
Step-by-step explanation:
y2 - y1/ x2 - x1
14 - 5/ 7 - 6
9/1
= 9
y = 9x + b
5 = 9(6) + b
5 = 54 + b
-49 = b
PLEASE HELP I DONT KNOW HOW TO SOLVE THIS :((
Answer:
[tex]\displaystyle \angle A=30^\circ[/tex]
Step-by-step explanation:
We are given that in Circle O, Arc BAC measures 300°.
Recall that arc lengths will always total 360°. Therefore:
[tex]\stackrel{\frown}{BAC}+\stackrel{\frown}{CB}=360^\circ[/tex]
By substitution:
[tex]300+\stackrel{\frown}{CB}=360[/tex]
Thus:
[tex]\stackrel{\frown}{CB}=60^\circ[/tex]
∠A intercepts Arc CB. Since it is an inscribed angle, it will be half of its intercepted arc. In other words:
[tex]\angle A=\displaystyle \frac{1}{2}\stackrel{\frown}{CB}[/tex]
Therefore:
[tex]\displaystyle \angle A=\frac{1}{2}(60)=30^\circ[/tex]
If A= (-4 1 -4) (3 3 1) (2 5 5) and B= (-4 -5 4) (3 3 -5) (2 2 -1), find AB
Answer:
[tex]\left[\begin{array}{ccc}11&15&-17\\-1&-4&-4\\17&15&-22\end{array}\right][/tex]
Option D will be your answer
[tex]-----------[/tex]
hope it helps...
have a great day!!
What two words will fill in the blanks correctly?Single choice.
(1 Point)
In similar figures, the ratio of the lengths of their corresponding sides are ____________ and corresponding angles are ____________.
equal and congruent
similar and similar
similar and congruent
here's the answer :
=》
In similar figures, the ratio of the lengths of their corresponding sides are equal and corresponding angles are congruent.
hence, A. equal and congruent is correct.
Answer:
equal and congruent
Step-by-step explanation:
equal and congruent
Please help!!!
If data set A has a larger standard deviation than data set B, data set B is
more spread out thar data set A.
O A. True
O B. False
Answer:
the answer is B.FALSE
Step-by-step explanation:
hope it helps
Please find the answer , it is a very importatnt question
Step-by-step explanation:
The given expression is :
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}=\sqrt5 x+y[/tex] ....(1)
Taking LHS of the above expression
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}[/tex]
Rationalizing both denominator and numerator.
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}\times \dfrac{2-3\sqrt5}{2-3\sqrt5}=\dfrac{4-6\sqrt5-2\sqrt5+15}{2^2-(3\sqrt5)^2}\\\\=\dfrac{19-8\sqrt5}{4-45}\\\\=\dfrac{19-8\sqrt5}{-41}\\\\=\dfrac{\sqrt5 \times 8}{41}+(\dfrac{-19}{41})[/tex]
Equation (1) becomes,
[tex]\dfrac{\sqrt5 \times 8}{41}+(\dfrac{-19}{41})=\sqrt 5\ x+y[/tex]
Equating both sides,
[tex]x=\dfrac{8}{41}[/tex] and [tex]y=\dfrac{-19}{41}[/tex]
Hence, this is the required solution.
At a football stadium, 10% of the fans in attendance were teenagers. If there were 100 teenagers at the football stadium, what was the total number of people at the stadium?
Answer:
The answer is 1000.
*Explanation*
Attendance at the football stadium is 100%
100% - 10% = 90%
10% = 100 attendance
900% = 900 attendance
900 + 100 = 1000 attendance
in an exam 90% students passed if the 15 student fail find the number of students appeared in the examination
Answer:
150
Step-by-step explanation:
15 fail
90 percent pass
15=10 percent
135=90 percent
150
Step-by-step explanation:
90%passed
100%-90%=10% failed
10%=15 students
100%=x students
USE CROSS METHOD10x=1500
x=1500/10
x=150 number of students appeared in the exam.
13 and 14
Please help ASAP
Extra 100 points
Answer:
(3)
(4)
Step-by-step explanation:
but I could be wrong
-5 + 6a + (-8) + (-3a)=
Answer:
-5+6a+(-8)+(-3a)=
-13+3a
hope this helps
have a good day :)
Step-by-step explanation:
Answer:3a and -13
Step-by-step explanation:
hope it helps
On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and
sugar Which system of linear inequalities can Hayley use to model this situation where b represents the
number of loaves of banana bread and represents the number of loaves of zucchini bread?
A /3b + 15
26 +2 9
OB 56 +32 15
3b +59
CS 3b +2:15
16 +2:59
D
26 + 2: 15
| 3b +5359
Answer:
Step-by-step explanation:
On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and
sugar Which system of linear inequalities can Hayley use to model this situation where b represents the
number of loaves of banana bread and represents the number of loaves of zucchini bread?
Due tonight.. *no links*
Answer:
49°
Step-by-step explanation:
106 + 135 + 70 + x = 360
311 + x = 360
x = 49°
Andy’s goal for the week is to run 19 miles. he ran 6.19 miles between monday and friday. he ran 3.1 miles on saturday. how many more miles should he run on sunday to meet his goal?
Answer:
9.71 miles
Step-by-step explanation:
total miles he ran = 6.19 + 3.1 = 9.29
Target = 19 miles
Goal for sunday = 19 - 9.29 = 9.71
HELP ME PLEASE! THE ATTACHMENT HAS THE INFO.
THANK YOU!
Answer:
The answer is B
Step-by-step explanation: yo mum u dont need one
Answer:
Your answer is b
Step-by-step explanation:
Step-by-step explanation: None
The original price of a shirt is $16.00. The price of the shirt is discounted by 20%, then a 4% sales tax is added. What is the final price of the shirt after the discount is taken off and sales tax added?
Answer:
$13.31
Step-by-step explanation:
blehn b;eoj
Answer:
$13.31
Step-by-step explanation:
First, take the original price and apply the discount of 20% by converting the percentage into a decimal (0.2)
16 x 0.2
= 3.2
Next, take away that amount from the original price
16 - 3.2
= 12.8
Now calculate the tax with the new price by converting the percentage into a decimal (0.04)
12.8 x 0.04
= 0.512
Finally, add the tax to the new amount
12.8 + 0.512
= 13.312
Round if necessary.
50 points and brainliest
Answer:
I can't see clearly pls clear it out
Answer:
tha loojs hard
Step-by-step explanation:
On a basketball court there is a semicircle above the free throw line that has a radius of 7 find the area of semicircle
Answer: [tex]77\ \text{sq. units}[/tex]
Step-by-step explanation:
Given
The radius of the semi-circle is [tex]r=7[/tex]
We know, area of the circle is [tex]\pi r^2[/tex]
So, the area of the semi-circle is half of it i.e. [tex]\frac{1}{2}\pi r^2[/tex]
Put the value
[tex]\Rightarrow \dfrac{1}{2}\times\pi \times 7^2=76.97\\\Rightarrow \approx 77\ \text{sq. units}[/tex]
The area of the semi-circle is [tex]77\ \text{sq. units}[/tex]
Could someone please help me urgently ty!
Answer:
m<PRQ=15°
Step-by-step explanation:
so we're given that PQ and RQ are sides of a regular 12-sided polygon (dodecagon)
a regular polygon is a polygon that has all angles be the same measure AND have all sides be the same length
because of that, PQ=RQ, and ΔPQR is isoceles
now we need to find what the question is asking for: m<PRQ
because of base-angles theorem, m<PRQ=m<RPQ
we need to find m<PQR
a dodecagon is 1800° in measure
and we need 1/12th of that measure, since <PQR is 1 out of the 12 interior angles on the dodecagon (a dodecagon has 12 vertecies, so 12 angles). Also because the polygon is regular, every interior angle has the same measure.
so find the measure of <PQR
<PQR= 1/12*1800=150°
now to find the measure of <PRQ:
there are 180° in a triangle
so subtract 150° from 180°
180°-150°=30°
30° is the sum of the base angles (<PRQ is one of the base angles in a triangle)
the base angles are the same measure, so that means the measure of <PRQ is 1/2 the measure of the sum of the base angles
therefore m<PRQ=15°
hope this helps!
25. A sequence of positive integers with 2020 terms is called an FT sequence if each term
after the second is the sum of the previous two terms. For example, if the first two
terms of an FT sequence are 8 and 7, the sequence would begin 8,7,15,22,37,....
For some positive integer m, there are exactly 2415 FT sequences where the first two
terms are each less than 2m and the number of odd-valued terms is more than twice
the number of even-valued terms. What is the value of m?
(A) 21
(B) 69 (C) 115 (D) 35 (E) 105
Answer:
The first term in the sequence is odd-valued and so there are m choices for it.2020 Gauss Contest Solutions Page 19
The second term in the sequence is even-valued and so there are m − 1 choices for it.
Thus, there are a total of m × (m − 1) FT sequences that begin with an odd-valued term
followed by an even-valued term.
Finally, we consider the FT sequences that begin with an even-valued term followed by an
odd-valued term (Parity #4).
Again, there are exactly twice as many odd-valued terms as there are even-valued terms in the
first 2019 terms (since the pattern repeats even, odd, odd).
However in this case, the 2020th term is even and so there are fewer than twice as many odd valued terms as there are even-valued terms.
Thus, there are m2 + m × (m − 1) FT sequences that satisfy the required conditions.
Since there are 2415 such FT sequences, we may solve m2 + m × (m − 1) = 2415 by trial and
error.
Evaluating m2 + m × (m − 1) when m = 30, we get 302 + 30 × 29 = 1770, and so m is greater
than 30.
When m = 33, we get 332 + 33 × 32 = 2145.
When m = 34, we get 342 + 34 × 33 = 2278.
When m = 35, we get 352 + 35 × 34 = 2415, as required.
Answer: (D)
Step-by-step explanation:
aurav went to school for 216 days in a full year. If his attendance is 90%, find the number of days on
which the school was open.
Answer:
The school was open for 240 days
Step-by-step explanation:
216 / x = 90%/100%
216*100= 21,600
21,600/90 = 240
I had $370 my mother gave me $150 my father gave me $150 my aunt and uncle gave me $ 100 and I had another $30. How much did I have?
Answer:
370+150+150+100+30=800
Step-by-step explanation:
Hi guys please help me out I would appreciate it thank you so much
Answer:
D) Angle VUX
Step-by-step explanation:
Nadia and her friend are hiking in the woods. The table shows how far they traveled during the day.
Distance
Time
Traveled
(hours)
(meters)
2
4,000
4
8,000
6
12.000
00
16,000
10
20,000
What is the unit rate, in meters per hour, that Nadia and her friend hiked?
O A. 500 meters per hour
OB. 1000 meters per hour
OC. 2000 meters per hour
D. 4000 meters per hour
Answer:
c. 2000 meters per hour
The school that Shawna goes to is selling tickets to a spring musical. On the first day of ticke sales the school sold 7 adult tickets and 7 student tickets for a total of $91. The school took ir $170 on the second day by selling 14 adult tickets and 12 student tickets. Find the price of an adult ticket and the price of a student ticket.
Answer:
x = price of adult tickets = $7
y = price of students tickets = $6
Step-by-step explanation:
Let
x = price of adult tickets
y = price of students tickets
7x + 7y = 91 (1)
14x + 12y = 170 (2)
Multiply (1) by 2 to
14x + 14y = 182 (3)
14x + 12y = 170 (2)
Subtract (2) from (3) to eliminate x
14y - 12y = 182 - 170
2y = 12
y = 12/2
y = 6
Substitute y = 6 into (1)
7x + 7y = 91 (1)
7x + 7(6) = 91
7x + 42 = 91
7x = 91 - 42
7x = 49
x = 49/7
x = 7
x = price of adult tickets = $7
y = price of students tickets = $6