Answer:
Step-by-step explanation:
Based on ur graph, in a class of 90 students (20 rock, 40 hip hop, and 30 country...added = 90) , 30 chose country....30/90 reduces to 1/3.....so 1/3 chose country.
In a class of 450 students......1/3 * 450 = 450/3 = 150 chose country
Answer:
The total percentages do not equal 100%, they equal 102%. If all friends answered, his total should equal 100%
Step-by-step explanation:
0.42 is 42%, 22% is 22%, and 2/5 is 0.4 which is 40%. Together that is 102%. If all friends answered, his total should equal 100%
The perimeter of an equilateral triangle is 15 inches more than the perimeter of a square, and the side of the triangle is 7 inches longer than the side of the square.
Find the side of the triangle (Hint: An equilateral triangle has three sides the same length.)
The side of the triangle is __in3. - in. - in2.
what is Eight decreased by 3 times a number is 2
Answer:
8- 3x = 2 I think this is
Answer: The unknown number is 2.
Step-by-step explanation:
Let the number be x
8-3x = 2
or, -3x = -6
so, x = -6/-3
so, x = 2
Statements Reasons 1. Given 1. Given 4 2. RS + ST = PS + SQ 2. Addition Property 3. RS + ST = RT; PS + SQ = PQ 3. 4. RS=ST;RQ=ST 4. Substitution Property
Find the equation of the line that contains the point (21,27) and is parallel to the x-axis.
Answer:
y - 27 = 0 (x - 21) or y = 27
Step-by-step explanation:
Help me
6 = 1/5 (4y + 10)
Step-by-step explanation:
open the bracket
6={(1/5×4y) + 1/5×10}
6=4/5y+2
6-2=4/5y
4=4/5y
divide both sides by 4/5
y=1/5
The answer you are looking for is y=5.
Solution/Explanation:
Writing out the problem,
6=1/5(4y+10)
Using the Distributive Property,
6=4/5y+2
Subtracting 2 from both sides of the equation,
6-2=4/5y
4=4/5y
Multiplying both sides by 5, to transform the fraction into a whole number,
20=4y
Finally, dividing both sides by 4,
So, therefore the final answer is y=5.
Gear X has 12 cogs (teeth) and turns
clockwise at 30 revolutions per
minute. Gear Y has 24 cogs and gear
Z has 6 cogs
How fast and in which direction does
gear Z turn?
Help me with this math question plss
Answer:
C. 8/17
Step-by-step explanation:
PM = 16+14 = 30 cm
KP= LN = 16×tan45° = 16×1 = 16cm
by using pythagorean theorem, we find :
KM² = PM²+KP²
= 30²+16²
= 900+256
= 1156
=> KM =√1156 = 34cm
so, cos theta = KP/KM = 16/34 = 8/17
A town’s population increases at a rate of 2.3% every year. The current population is 7,500 people. Which equation models this scenario?
Answer:
7500 ( 1.023 ) ^(x)
Step-by-step explanation:
x is the number of years that go by
PLEASEE!! do at least one of the problems and show work!!!
For #8 and #9, fill in the missing information for the following trapezoids. SHOW YOUR WORK to solve for the missing value.
8.
height = 19.8 cm
b1 = ________
b2 = 14.4 cm
area = 401.94 cm2
9.
height = ________
b1 = 20 cm
b2 = 21 cm
area = 205 cm2
Step-by-step explanation:
8. b1 = (2×401.94)/19.8 - 14.4
= 40.6 - 14.4 = 26.2 cm
9. h = (2×205)/(20+21)
= 410/41
= 10cm
compare each number in the top row of the table with the number below it describing any pattern you see complete the table with a variable expression involving n.
1 2 3 4. ... n
1 16 81 256 ... ?
Answer:
The pattern is [tex]n^{4}[/tex].
Step-by-step explanation:
[tex]1^{4}[/tex] = 1, [tex]2^{4}[/tex] = 16, [tex]3^{4}[/tex] = 81, [tex]4^{4}[/tex] = 256
So the pattern is [tex]n^{4}[/tex].
Which number below comes first when the numbers are listed from least to greatest? Explain. 22 16 -3, 817, - 4.5 7 5 ... Which number comes first when the numbers are listed from least to greatest?
A. - 4.5 because it is the negative number with the greatest absolute value.
В. 16 because it is the greatest positive number. 5
C. V17 because it is the greatest positive number.
D. -3 because it is the negative number with the greatest absolute value. 22 hen click Check Answer
Answer: Choice A.
- 4.5 because it is the negative number with the greatest absolute value.
===================================================
Explanation:
Stuff to the left is smaller than stuff on the right for any number line.
For example, we can say 2 < 5 since 2 is to the left of 5.
Another example: -7 < 4
To find the smallest item of your given list, we need to look at the value that is furthest to the left. That value would be -4.5 and this value is negative with the largest absolute value (i.e. it is furthest away from 0).
Check out the number line diagram below. It shows where all of the values are placed. We can see that -4.5 is the left-most item.
HELPPP!!!!!!
How far is weather station A from the storm?
44.6 miles
19.7 miles
42.2 miles
31.2 miles
This value is approximate.
============================================================
Explanation:
Let's focus on the 48 degree angle. This angle combines with angle ABC to form a 90 degree angle. This means angle ABC is 90-48 = 42 degrees. Or in short we can say angle B = 42 when focusing on triangle ABC.
Now let's move to the 17 degree angle. Add on the 90 degree angle and we can see that angle CAB, aka angle A, is 17+90 = 107 degrees.
Based on those two interior angles, angle C must be...
A+B+C = 180
107+42+C = 180
149+C = 180
C = 180-149
C = 31
----------------
To sum things up so far, we have these known properties of triangle ABC
angle A = 107 degreesside c = side AB = 24 milesangle B = 42 degreesangle C = 31 degreesLet's use the law of sines to find side b, which is opposite angle B. This will find the length of side AC (which is the distance from the storm to station A).
b/sin(B) = c/sin(C)
b/sin(42) = 24/sin(31)
b = sin(42)*24/sin(31)
b = 31.1804803080182 which is approximate
b = 31.2 miles is the distance from the storm to station A
Make sure your calculator is in degree mode.
The weather station A is 31.2 miles from the storm
From the triangle shown:
m<B = 90° - 48°
m<B = 42°
m<A = 17° + 90°
m<A = 107°
m<A + m<B + m<C = 180° (Sum of angles in a triangle)
107° + 42° + m<C = 180°
m<C = 180° - 149°
m<C = 31°
The distance between the weather stations A and B = 24 miles
That is, AB = 24 miles
The storm is at point C
The length AC is found by using the rule of sines:
[tex]\frac{sinC}{AB}=\frac{sinB}{AC} \\\\\frac{sin31}{24}=\frac{sin42}{AC} \\\\\frac{0.515}{24} = \frac{0.669}{AC} \\\\0.02146=\frac{0.669}{AC}\\\\AC=\frac{0.669}{0.02146} \\\\AC=31.2 miles[/tex]
The weather station A is 31.2 miles from the storm
Learn more on sine rule here: https://brainly.com/question/4372174
The coordinates of the vertex A of Triangle ABC are ( -4 ,2) and D the mid-point of BC are ( 2 , 5 ).Find the
coordinates of the centroid .
Answer:
(0,4)
Step-by-step explanation:
The line AD is a median, because D is the midpoint of BC.
The centroid is the point of intersection of three medians of triangle, we don't need to depict any another median, because we know that centroid divide each median in ratio 2:1 from the vertices of a triangle from which a median was depicted. That's obvious that the median AD was depicted from A. Let the point of centroid be M. AM:MD is 2:1. So we should find the coordinates of D
xD= (xa*1+xd*2)/ (2+1)= ((-4)*1+2*2)/3=0
yd= (ya*1+yd*2)/ (2+1)= (2*1+ 5*2)/3=12/3=4
(0,4)
find the value :
of x
[tex]\\ \rm\longmapsto <AEC+<CED+x=180[/tex]
[tex]\\ \rm\longmapsto 47+90+x=180[/tex]
[tex]\\ \rm\longmapsto 137+x=180[/tex]
[tex]\\ \rm\longmapsto x=180-137[/tex]
[tex]\\ \rm\longmapsto x=43[/tex]
A rectangular trampoline has an area of 204 squaſe feet. The length of the trampoline is 17 feet. What is the width?
Answer:
width = 12 ft
Step-by-step explanation:
A = w * l
w = a/ 1 = 204/ 17 = 12 ft
please help me with these. i need the steps and everything. i’m so lost
Answer:
Are you in geometry?
For question 5:
To solve for x:
Triangle to the right with the 72 degrees in one angle.
All triangles add up to 180.
Subtact 72 from 180 = 108
Now we need to find the two other angles of that triangle.
We know that the two given eqations for that triangle is 6x-2 and 11x-9 (remeber the property creating the area of intersection, two congruent angles, so the equation 11x-9 applys for both triangles.)
So for the triangle to the right;
(6x-2) + (11x-9) = 108
lets add like terms next
17x - 11 = 108
add 11 to 108
17x = 119
divide 17 from both sides
x = 7
Now we need to find y.
On triangle to the right we have 30degrees. Lets subtract 30 degrees from 180. This equals 150.
We can plug in 7 to the equation 11x-9 which give us 68.
We now know to angles of the triangle. Lets subtract 68 from 150.
We get 82.
The last angle is 82, Which means lets find y.
5y - 8 = 82
add 8 to both sides
5y = 90
divide by 5 to both sides
y = 18
----------------------------------------------------------------
try number 6. on your own to see if you get it know. If you don't, comment to me regarding what you don't understand.
can anyone please help me solve it
11,12 (1)(2)(3),13 this is all
Answer:
answer of 11
Step-by-step explanation:
given A=30°
R.H.S=2sinA cosA
=2 * sin30° * cos30°
[tex] 2 \times \frac{1}{2} \times \frac{ \sqrt{3} }{2} [/tex]
[tex] = \frac{ \sqrt{3} }{2} [/tex]
=sin60°
sin 2*30°
=sin2A
L.H.S=R.H.S
3/5 of the T-shirts and a T-shirt shop are blue 5/8 of those T-shirts are on sale 1/3 of the blue T-shirts that are on sale or size medium what fraction of the shops T-shirts are blue T-shirts that are on sale and are size medium
Answer:
yes their size is medium
find m<YDC
please help!
Answer:
∠YDC measures 140°.
Step-by-step explanation:
We can consider using the Exterior Angle Theorem. According to the theorem, the exterior angle of a triangle is equal to the two opposite interior angles.
In other words:
[tex]\displaystyle m \angle YDC = m\angle DCB + m\angle CBD[/tex]
Substitute:
[tex]\displaystyle (15x + 5) = (80) + (6x+6)[/tex]
Solve for x. Combine like terms:
[tex]15x + 5 = 6x + 86[/tex]
Simplify:
[tex]9x = 81[/tex]
And divide. Hence, the value of x is:
[tex]x = 9[/tex]
∠YDC is given by:
[tex]\displaystyle m\angle YDC = 15x + 5[/tex]
Since we now know the value of x, substitute and evaluate:
[tex]\displaystyle \begin{aligned} m\angle YDC &= 15x + 5 \\ &= 15(9) + 5 \\ &= 135 + 5 \\ &= 140^\circ\end{aligned}[/tex]
In conclusion, ∠YDC measures 140°.
A ball is thrown into the air with an upward velocity of 32 ft/s. It’s height h in feet after t seconds is given by the function h = -16t + 32t + 6 in how many seconds does the ball reach it maximum height? Round to the nearest hundredth if necessary
Answer:
gfxdg
Step-by-step explanation:
i need helpp !! ill mark brainliest !
393/1000. i think, sorry. :c
Cho hình chóp có cạnh đáy là hình vuông cạnh bằng . Tam giác cân tại và mặt bên vuông góc với đáy, biết . Tính thể tích của khối chóp .
Answer:
Ah Here We Go Again :) After Five Years
Seven less than the product of 8 and a number equals 4
If you roll two dices, what is your probability not get 2 on both dice ?
Answer:
10/12 or 5/6
Step-by-step explanation:
So assuming each dice has 6 sides
6+6=12
12-2=10
10/12 or 5/6
Answer:
possible outcomes =1,1,2,2,3,3,4,4,5,5,6,6
probability that you don't get 2 on both dice is
10/12
=5/2
Alphonso was earning S1,860 per month
and then got a 12% raise. How much
will he make per month now?
Answer:
2,083.3
Step-by-step explanation:
Hi I need help On his Multiple Choice questions Try)- and not get it wrong or I cant Complete My Maths Work. The Question itself is on the Image attached Below: thanks!
Answer:
a) Option A is correct.
b) Option B is correct.
Step-by-step explanation:
[tex]a) \: \: 5 \times a \\ = 5a[/tex]
[tex]b) \: \: b \times b \\ = {b}^{2} [/tex]
Hope it is helpful.....can someone help me
please??
Stewart's car can hold a maximum of g gallons
in its gas tank, and gas costs c dollars per
gallon. If the car currently has 2 gallons of gas
in the tank, what is the cost, in dollars, to fill up
the rest of the tank?
The formula that gives us the cost, in dollars, to fill up the rest of the tank is,
Cost = (g - 2) × c
Given that;
The car currently has 2 gallons of gas and can hold a maximum of g gallons,
Hence, the amount of gas needed to fill the tank is,
(g - 2) gallons.
If the cost of gas is c dollars per gallon, the total cost to fill up the rest of the tank can be calculated by multiplying the number of gallons needed by the cost per gallon:
Cost = (g - 2) × c
Thus, the formula that gives us the cost, in dollars, to fill up the rest of the tank is,
Cost = (g - 2) × c
To learn more about the equation visit:
brainly.com/question/28871326
#SPJ3
what is the common denominator of 4/5 and 9/4
hope this helps some
can someone help me ?
Answer:
r = - 29
Step-by-step explanation:
Given
- 3r = 87 ( divide both sides by - 3 )
r = [tex]\frac{87}{-3}[/tex] = - 29
Answer:
here,we have-3r= 87now,r=87÷ -3
r= -29