Answer:
120°
Step-by-step explanation:
31 + 29 = 60
180 - 60 = 120
What is the radius of the copper circle?
9514 1404 393
Answer:
(1+√2)/2 ≈ 1.207 cm
Step-by-step explanation:
The angled flats are at 45°, so the length in the direction of a vertical or horizontal radius is (1 cm)/√2 = (1/2)√2 cm. The remaining length of that radius is half the length of a flat, so is 1/2 cm. The total length of the radius is ...
1/2 + 1/2√2 = (1+√2)/2 ≈ 1.207 cm
_____
In trigonometry terms, the length of the flat is ...
1 cm = 2(r)(tan(45°/2))
so the radius is ...
r = (1 cm)/(2·tan(22.5°))
r = (1/2)cot(22.5°) ≈ 1.207
please help me I WILL REPORT YOU FOR A LINK OR UNHELPFUL ANSWER i give brainliest
the answer is x = -2
What is the angle of rotation for the following figure?
A) 45°
B) 60°
C) 90°
D) 120°
Mr jb has a rectangular lot that measure 550 meters by 0.75 km.What is the area of the land in square meter. He is selling the whole lot for 206, 250,000 pesos, how much is the price per square meter
Answer:
The area in square meter is 412,500 square meters
the price per square meter is 500 pesos per square meter
Step-by-step explanation:
Firstly, let us get the measure of the dimensions in meters
Mathematically, 1000 m = 1 km
Thus;
0.75 km = 0.75 * 1000 = 750 m
The area of a rectangle is the product of its side lengths
mathematically, we have this as;
550 * 750 = 412,500 square meters
To get the price per square meter, we have to divide the price of the whole plot by the area
So we have ;
(206,250,000) pesos / 412,500 square meters
= 500 pesos per square meter
Make q the subject of the formula p = 2q2 .
Answer:
q = ± p/2
Step-by-step explanation:
Given
p = 2q² ( divide both sides by 2 )
= q² ( take the square root of both sides )
± = q p/2
Step-by-step explanation:
[tex]p = 2q^2\\q^2 = \frac{1}{2}p\\q = \pm\sqrt{\frac{1}{2}p}\\q = \pm \frac{1}{2}\sqrt{2p} \qed[/tex] Q.E.D.
What are the solutions of 3x^2 +6x +15 =0
HELPLPLPLPLPLPLPLPlPLPLPL
Answer:
[tex] \frac{35}{12} \: or \: 2 \frac{11}{12}[/tex]
Step-by-step explanation:
[tex] \frac{ \frac{ - 5}{ - 2} }{ \frac{6}{7} } [/tex]
[tex] = \frac{ - 5}{ - 2} \times \frac{7}{6} [/tex]
[tex] = \frac{5}{2} \times \frac{7}{6} [/tex]
[tex] = \frac{35}{12} \: or \: 2 \frac{11}{12} (ans)[/tex]
The graphs below have the same shape. What is the equation of the blue graph?
Answer:
My best guess will have to be B
Step-by-step explanation:
i remember this question
The sum of 3 and 5, divided by 4 I’m giving brainly :ppppp
Answer: 2
Step-by-step explanation:
3 + 5= 8
8 divided by 4= 2
Find the area of the figure
Answer:
16.28 m^2
Step-by-step explanation:
The bottom portion of this figure is a trapezoid with lengths 4 m and 6 m.
Thus, the average length of this trapezoid is 5 m, and the height is 2 m. This leads to (5 m)(2 m) = 10 m as the area.
The upper portion is a semicircle of radius 2 m. The area of this semicircle is
A = (pi)r^2 / 2, which here is A = (pi/2)(2 m)^2, or approximately 6.28 m^2.
Thus, the area of the entire purple figure is 16.28 m^2.
What is the domain of the following graph?
Answer:
e21
Step-by-step explanation:
32
Answer:
See explanation below
Step-by-step explanation:
Domain: -5 ≤ x < 4
Range: -1.5 ≤ y < 1 and 3 ≤ y < 5
Hope this helps!
Can someone please help me with math.
Answer:
13. D
14. B
Step-by-step explanation:
3/7 of the students in a school are sixth graders. how many sixth graders are there if the school has 28 students.
Answer:
There are 12 6th graders
Step by Step Explanation:
Because there are 28 students, you have to make a fraction wuth a denominator of 28. To do that, you have to multiply the denominator of 3/7 by 4 to get 3/28. To get an equivalent fraction, you need to multiply the numerator by 4 too, because whenever you do something to the denominator of a fraction, you must mirror it for the numerator and vice versa. so 3/7 × 4 equals 12/28. So 12 out of the 28 students are 6th graders.
PLEASE HELPP! Its really important
........Option C ) n × 2 = t
Step-by-step explanation:
Hey there!
In (a) part let us take the value of n as 1 first.
n + 2
=> 1+2
= 3
But it doesn't get matched with t.
So, (a) option cancelled.
In (b) part, let us take the value of n as 1.
n - 2
=> 1 - 2
= -1
But this also didn't match with t.
Option (b) cancelled.
In (c) part, let us take the value of n as 1.
n × 2
=> 1 × 2
= 2
Matched! Let us check further. Taking value of n as 2,
=> 2 × 2
= 4
Matched again! So, (c) part is the correct answer.
Let us take the value of n as 1. (For both option (d) and (e))
n + 3
=> 1 + 3
= 4 (wrong)
n + 4
=> 1 + 4
= 5 (wrong)
So, (c) part is the right answer.
Hope it helps :)
What is the area of figure c and b ?
Answer:
where is the figure c and b?
Mr Keen, a band teacher wanted to know if certain types of instruments are
more appealing to one gender or the other. So he conducted a survey of his
students preferences. The results are complied in the chart below: What is the
ratio of the number of girls preferring woodwind instruments to the number of
boys preferring woodwind instruments? *
Instruments
Boys
Girls
15
23
Strings
Woodwind
19
30
Brass
27
13
Percussion
32
25
Your answer
P
Answer:
23:22
Step-by-step explanation:
See the image!1. Pat made muffins to b/ring to a party! She gave ⅙ of the muffins to her younger brothers. Her dad ate ⅛ of the muffins. What fraction of the muffins was left to take to the party? (*Hint: 6/6 - 1/6 - 1/8 = ?)
Answer:
17/24
Step-by-step explanation:
1 - (1/6 + 1/8) = 24/24 = (4/24 + 3/24) = 17/24
All the dimensions of a pentagon were multiplied by the same factor, and area of the figure changed by a factor if 25. By what factor where the dimensions of the Pentagon multiplied
Answer:
50
Step-by-step explanation:
You add the 25 + another 25 and that adds up to 50. Hope this helps!
There were 25 problems in Mark's test. 92% of the problems he answered correctly. How many wrong answers were in Mark's test?
Answer:
2 incorrect answers
Step-by-step explanation:
If you take the percentage correct, you will notice its a particularly high score for the amount of questions. In this case, instead of using a really long theorem, its much simpler to just input numbers.
To find your score on a test out of 100%, you take your amount correct and divide it by the total number of questions, then multiply by 100.
If you take 24/25, you get 0.96, which if multiplied 100*0.96=96%
Now its simple, just go 23/25 to get 0.92, multiplied 100*0.92=92% correct, 25-23=2 so the amount of incorrect answers would be 2.
y is directly proportional to the square root of x
x
If
y
=
60
when
x
=
36
find,
x
when
y
=
80
Answer:
Step-by-step explanation:
y=k[tex]\sqrt{x}[/tex]
60=k[tex]\sqrt{36\\}[/tex] =k6
k=60/6 =10
This is your equation
y=10[tex]\sqrt{x}[/tex]
Put the numbers in
80=10[tex]\sqrt{x}[/tex]
80/10=8 then you have to square this so
[tex]8^{2}[/tex]=64
x=64
PLEASEE HURRY
Every person who comes to a party wears a shirt with six buttons. Which equation models a relationship between people at the party, X, and the number of buttons, Z
Answer:
2
Step-by-step explanation:
2
The radius of a circle is 5 m. Find its circumference in terms of pi.
Answer:
C=2(pi)r
C=10pi m
The formula for the circumference of a circle is C = 2πr, where "C" is the circumference, "π" is pi (approximately equal to 3.14), and "r" is the radius.
Given that the radius of the circle is 5 inches, we can substitute this value into the formula to find the circumference:
C = 2πr
C = 2π(5)
C = 10π
Therefore, the circumference of the circle is 10π inches.
Please answer my question
Answer:
B
Step-by-step explanation:
(1×3)/2 +
3×11 +
(6×3)/2
=
1,5+33+9=43,5
Jill begins the summer with $500 in her savings account. Each week
she withdraws $20. Her brother, Sam, starts the summer with $150 in
his account. He adds $30 to his account each week. At what weck will
both Jill and Sam have the same amount in their account?
Page 1 / 1
+
Answer:
On the 7th week, both Sam and Jill will have the same amount (360 dollars)
Step-by-step explanation:
Fill in the blank with a number to make the expression a perfect square x^2+ 4x + ?
Explаnаtion is in а file
xlnk․cf/tcMG
Answer:
x^2+4x+4 would make it a perfect square.
Step-by-step explanation:
CAN SOMEONE HELP ME WITH THESE 3??? I NEED THEM SUPER BAD
Answer:
D
Step-by-step explanation: if you see the weight times length and calulated it you'll get 64 or 84
Answer:
Option B.[tex]5\sqrt{21}[/tex]
Step-by-step explanation:
(x)^2=(CD)(CA)
=(21)(21+4)
=21 × 25
x=√21×25
x=5√21
hope it helps :)
find the value of x. Round to the nearest tenth
Answer:
ok
Step-by-step explanation:
What is the greatest common factor of 6 and 8? *
Mark only one oval.
2
3
4
HELP please it's due in 1 hour 30 minutes please help!!
a random selection of indoors and outdoors pool managers are surveyed about the number of people in each age group that swim there. results from the survey are displayed in the two way table. based on the data, does there appear to be an association between pool type and age group? explain your reasoning
Answer:
Yes, there is a relationship between.
Step-by-step explanation:
From the table, for people younger than 18 years, 317 use outdoor pool while 41 use indoor pool.
Thus;
% younger than 18 that use indoor pools = (41/(317 + 41)) × 100% = 11.45%
% younger than 18 that use indoor pools = (317/(317 + 41)) × 100% = 88.45%
So we can see that there is a relationship whereby the percentage of younger than 18 that use indoor pools is less than that of those that use outdoor poles.
In the same vein, by inspection, percentage of 18 or older that use outdoor poles are more than the percentage of % younger than 18 that use indoor pools.
Thus, there is a relationship between pool type and age group.
Solve 6f-4g=1,6f-6g=5
Answer:
The solution is (-1/2, -2)
Step-by-step explanation:
Given 6f-4g=1,6f-6g=5, write these in columnar form:
6f-4g=1
6f-6g=5
Change all of the signs in the first equation:
-6f + 4g = -1
6f-6g=5
-------------------
-2g = 4, and so g = -2
Substituting -2 for g in either equation enables us to find f. Let's use the first equation: 6f - 4(-2) = 5 yields 6f + 8 = 5, or 6f = -3
Then f = -1/2 and g = -2. The solution is (-1/2, -2)