Answer: A t-shirt costs £3.00x, while a hat costs £2.00
Sorry if it's wrong
Step-by-step explanation:
Find the area of the regular polygon. Round your answer to the nearest hundredth.
6.84
10
A
square units
Answer:
area = 289.24 units²
Step-by-step explanation:
divide the polygon into 9 equal triangles
the top angle of a triangle will be 360°/9 = 40°
the sides of a triangles are both 10 units
The base of a triangle is 6.84 units
the height of a triangle is:
cos 20° = height/10
0.9397 = height/10
height = 9.4 units
The area of a triangle = 1/2(6.84)(9.4) = 32.13 units²
the polygon is made from 9 of these triangles, so 9 x 32.13 = 289.24 units²
answer to this please
Answer:
Sue travels for 3 hours and a half
Sue stays stationary for 2 hours and a half
Step-by-step explanation:
Everytime the curve climbs, it means Sue is travelling. Everytime the curve stays flat, it means Sue is stays stationary. It remains to count up the total for both categories, with one square being 30 minutes.
Sue spends 3.5 hours on travelling and 2.5 hours stationary.
What is distance-time graph?It is a graph which shows how far an object has travelled in a given time.
What is a stationary graph?It is graph of function which represents there is no change in the function value or the function value is constant.
What is change in value?"subtract old value from new value."
For given example,
Given distance-time graph represents a journey made by Sue.
Let 't' represents the travelling time and 's' represents the stationary time.
If we observe the graph,
from 2 pm to 3 pm Sue travelled 5 miles
⇒ t1 = 3 - 2
⇒ t1 = 1 hour
from 3.5 pm to 4 pm she travelled 10 miles
⇒ t2 = 4 - 3.5
⇒ t2 = 0.5 hour
from 5 pm to 6.5 pm she travelled 15 miles
⇒ t3 = 6.5 - 5
⇒ t3 = 1.5 hours
from 7.5 pm to 8 pm she travelled 5 miles
⇒ t4 = 8 - 7.5
⇒ t4 = 0.5 hour
So, the total travelling time would be,
⇒ t = t1 + t2 + t3 + t4
⇒ t = 1 + 0.5 + 1.5 + 0.5
⇒ t = 3.5 hours
Also, Sue spends stationary from 3 pm to 3.5 pm
⇒ s1 = 3.5 - 3
⇒ s1 = 0.5 hour
She spends stationary from 4 pm to 5 pm
⇒ s2 = 5 - 4
⇒ s2 = 1 hour
She spends stationary from 6.5 pm to 7.5 pm
⇒ s3 = 7.5 - 6.5
⇒ s3 = 1 hour
So, the total stationary time would be,
⇒ s = s1 + s2 + s3
⇒ s = 0.5 + 1 + 1
⇒ s = 2.5 hours
Therefore, Sue spends 3.5 hours on travelling and 2.5 hours stationary.
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2) Which equation has the same y-intercept as the graph on the right?
a. f(x) = -2% -2
b. f(x) = (*)*-?
6. f(x) = (a)*+
d. f(x) = 2*-2
Answer:
I'm so sorry if I'm wrong but in my opinion I think the answer is C you don't have to choose it
Which expression is equivalent to -3x + 5x - 2y + 5x? *
A .13x -2y
B. 7x -2y
C. 7x + 2y
calculate the mass of air in a room with internal measurement 6 metre by 4 metre by 9 metre if the density of air is 1.3 m³
Answer:
9.4.6=216
216.1,3=280
Step-by-step explanation:
[tex] \huge\hookrightarrow \mathbb{ \color{gold}Answer}[/tex]
We know,
[tex] \boxed{volume = l \times b \times h}[/tex]
so,
[tex]\hookrightarrow{volume = 6 \times 4 \times 9}[/tex]
[tex]\hookrightarrow volume = 216 \: m {}^{3} [/tex]
now,
[tex] \boxed{density = \frac{mass}{volume} }[/tex]
So,
[tex] \hookrightarrow1.3 = \dfrac{m}{216} [/tex]
[tex]\hookrightarrow \: m = 216 \times 1.3[/tex]
[tex] \hookrightarrow \: m = 280.8[/tex]
hence, mass of air in the room is 280.8 kg
use the pythagorean theorem to find the value of a.
Answer:
a = 5
Step-by-step explanation:
Using Pythagoras' theorem in the right triangle
a² + 12² = 13²
a² + 144 = 169 ( subtract 144 from both sides )
a² = 25 ( take the square root of both sides )
a = [tex]\sqrt{25}[/tex] = 5
Answer:
pythagoras theorem formula
h^2=p^2+b^2
here hypotenuse is 13
you can take a as either perpendicular or base
lets take it base
h^2=p^2+b^2
(13)^2=(12)^2+(a)^2
169=144+a^2
169-144=a^2
25=a^2
[tex]\sqrt{25}[/tex]=a
5=a
Step-by-step explanation:
whats the domain and range?
Answer:
Dom = R - {-4}
Range = R - {0}
Step-by-step explanation:
what is 28=-k+16-2k-9
Answer:
k = -7
Step-by-step explanation:
Let's put the side with the variables on the left.
-k+16-2k-9=28
Now we need to isolate the variable, which is k in this case.
>> Isolating the variable <<Step 1: Simplify as much as you can.-k+16-2k-9=28
-k-2k+16-9=28
-3k+7=28
Step 2: Subtract 6 from both sides(-3k+5) -7 = 28 -7
-3k = 21
Step 3: divide both sides by -3k = -21/3
That's your answer:
k = -7
in the monthly payment formula M=Pr(1+r)n/(1+r)n-1, for r if the interest rate is 6.9%
Answer:
0.00525
Step-by-step explanation:
The value that would be put for rate (r) is, 0.069
What are simple and compound interests?Simple interest is often a predetermined percentage of the principal amount borrowed or lent paid or received over a specific time period.
Borrowers are required to pay interest on interest in addition to principal since compound interest accrues and is added to the accrued interest from prior periods.
The present value monthly payment formula is as follows,
M = (Pr(1 + r)ⁿ)/(1 - r) - 1
Where,
P is the Present Value.
r is the interest rate.
n is the number of times compounded.
Now that we know the interest rate is 6.9%, we can put that in our text., r = 6.9/100 = 0.069
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HELP Trigonometry: Find the area of each shape using the given information
Given:
The vertical height of the trapezoid = 2.9 m
The bases of the trapezoid are 2.3 m and 9.3 m.
To find:
The area of the given trapezoid.
Solution:
The area of a trapezoid is:
[tex]A=\dfrac{1}{2}(a+b)h[/tex]
Where, a, b are bases or length of parallel sides and h is the vertical height of the trapezoid.
Putting [tex]a=2.3,\ b=9.3,\ h=2.9[/tex] in the above formula, we get
[tex]A=\dfrac{1}{2}(2.3+9.3)(2.9)[/tex]
[tex]A=\dfrac{1}{2}(11.6)(2.9)[/tex]
[tex]A=16.82[/tex]
Therefore, the area of the given trapezoid is 16.82 square m.
What is always true about the interquartile range of a data set? Select all that apply.
A.
The interquartile range is greater than the range.
B.
The interquartile range contains the median of the data set.
C.
The interquartile range is less than the range.
D.
The interquartile range contains about 50% of the data set.
The interquartile range is.....
Answer:
Our goal is to understand how range and interquartile range describe data. To do this, we have to define the range and interquartile range of a given set of data, we have to be able to calculate the range and interquartile a range of a given set of data, and then we want to be able to determine how range and interquartile range are impacted by outliers.
So how can you describe data with range and interquartile range? Range tells us if data is grouped closely together or spread far apart. Interquartile range tells us if data is grouped closely around the median. The key concepts. Range is the difference of the maximum and minimum values.
So if we wanted to calculate the range of this particular data set here, we would say 20 minus 1 and get a range of 19. Interquartile range is the difference of the upper and lower quartiles. In order to do this, we first have to find the median to find those upper and lower quartiles. The median of this data set, the value in the middle, is 6. The lower quartile is the median of the lower half, the middle value then of these three data points being 3.
The upper quartile would be the middle of this data set, and that would be 8. So if we wanted to find the interquartile range, we'd subtract those values. 8 minus 3 gives us an interquartile range of 5. Interquartile range describes the spread of data around the median.
A small interquartile range means that most of the data, the middle half, is clustered tightly around the median, whereas a large interquartile range would mean that that data that's in the middle is more spread out. And finally, outliers impact the range, but have little impact on the interquartile range. If we consider our data set here, we see that we have an outlier of 20, but it really only impacts the range.
It does not play a significant role on the interquartile range.
Step-by-step explanation: also brainleist
Hence your answer will be D
Simplify the expression: x^4 • x^6
Answer:
[tex]x^{10}[/tex]
Step-by-step explanation:
Mark as brainllest
Answer:
[tex]x^{10}[/tex]
Step-by-step explanation:
Give other guy brainllest
If there are 1000 meters in one kilometer, how many kilometers are in 4230 meters?
True or False: The point (0, 3) lies on the x-axis.
Answer:
false
Step-by-step explanation:
(x,y)
if the first cord is 0 its on y
is the second cord is 0 its on x
Answer: True
Since the x-coordinate being 0, the point lies on the y-axis. The y-coordinate =+3 being positive, the point lies on the +ve y-axis.
Step-by-step explanation: Hope this help :D
Help pleaseeee NO LINKSSSS
Answer:
Step-by-step explanation:
Radius=r. Diameter=d. C=circumference. A=area
Starting from the center of the circle any line drawn to any point on the circumference of the circle is the radius, if the line is drawn from one point on the circumference to another point on the circumference through the centre of the circle that is the diameter. The circumference of the circle is the perimeter of the circle.
Formulas;
r=d÷2
C=2πr
A=πr²
π=[tex]\frac{22}{7}[/tex] or 3.142
4).
a.)r=d÷2
=4.8cm÷2
=2.4cm
b.)d=4.8cm
c.)C=2πr
=2×3.142×2.4cm
=15.08cm
d.) A=πr²
=3.142×(2.4)²
=3.142×5.76
=18.09cm² or 18.1cm²
5.
a.)r=d÷2
=7÷2
=3.5cm
b.)d=7cm
c.)C=2πr
=2×3.142×3.5
=21.99cm or 21.1cm
d.)A=πr²
=3.142×(3.5)²
=3.142×12.25
=38.49cm²
6.)
a.)r=d÷2
=14÷2
=7cm
b.)d=14cm
c.)C=2πr
=2×3.142×7
=43.99cm
d.)A=πr²
=3.142×(7)²
=3.142×49
=153.96cm²
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
Answer:
D
Step-by-step explanation:
Answer:
D: because the factor, fraction, decimals wont be multiply hundreadths of it specially when you add 27 so D: is my answer
Step-by-step explanation:
Does this help?
Doughnuts at one shop cost £1.80 each.
Doughnuts at a second shop cost 15% more.
What is the difference in the cost of doughnuts at the two shops?
Answer:
Given:
Cost of doughnut at one shop = £1.40
Unknown:
Difference in the cost of doughnuts at the two shops = ?
To find the difference in the cost of doughnuts at the two shops, we must know the cost of doughnut at the second shop;
Given that the cost of doughnut at the other shop is 20% more;
= 1.20 x £1.4
= £1.68
The difference in the cost of doughnuts = £1.68 - £1.40 = £0.28
So the answer is £0.28
Answer:
If the donut cost 1.80 at the first shop it will cost 2.07 at the second shop. the difference is 27 cents
1.80×15%=.27
1.80+.27=2.07
If θ is an angle in standard position and its terminal side passes through the point (-3,4), find the exact value of tanθ in simplest radical form.
Answer:
so x = 20 , y = -21 , which is in quad IV
r^2= 400+441 = 841
r = √841 = 29
then cos Ø = 20/29
sec Ø = 29/20 = 1.45
Step-by-step explanation:
please give brainliest
What is the value of S3= infinity sigma n-1 5(1/3)^n-1
You invest $20,000 in two accounts paying 12% and 11% annual interest, respectively. How much was invested in each account if, after one year, the total interest was $2,255.00.
Answer: [tex]\$5500, \$14,500[/tex]
Step-by-step explanation:
Given
[tex]\$20,000[/tex] is invested in two accounts with a 12% and 11% rate of interest.
Total interest after a year is [tex]\$2255[/tex]
Suppose x amount is invested in first, so the remaining amount is invested in other
Simple interest and Compound interest is the same for a year
[tex]\therefore \text{Interest}=\dfrac{P\times R\times T}{100}[/tex]
For first investment
[tex]I=\dfrac{x\times 12\times 1}{100}\\\\I=0.12x[/tex]
For second investment
[tex]II=\dfrac{\left(20,000-x\right)\times 11\times 1}{100}\\\\II=0.11\left(20,000-x\right)[/tex]
The sum of the two must be [tex]\$2255[/tex]
[tex]\Rightarrow 0.12x+0.11\left (20,000-x\right)=2255\\\Rightarrow 0.01x=2255-2200\\\\\Rightarrow x=\dfrac{55}{0.01}\\\\\Rightarrow x=\$5500[/tex]
Remaining amount is
[tex]\Rightarrow 20,000-5500\\\Rightarrow \$14,500[/tex]
Use the data for the books each class donated for a book drive and find the upper quartile. 28 15 40 45 27 19 50 36 42 37 21 25
A.35
B.18
C.41
D.23
Answer:
41
Step-by-step explanation:
when you find the median you split the numbers in half from the upper to lower parts of the data. then you find the median of the upper part and that is the upper quartile.
median: 32
32, 36, 37, 40, 42, 45, 50
add 40+42 then divide by 2 and you get 41
hopefully this helps
Which relationship has a zero slope?
A. A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 2, 2, 2, 2.
B. A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 3, 1, negative 1, negative 3.
C. A coordinate plane with a straight line starting at (negative 5, negative 5) and passing through the origin, and ending at (5, 5)
D. A coordinate plane with a straight line starting iat (negative 2, 5) and passing the x-axis at (negative 2, 0), and ending at (negative 2, 5).
9514 1404 393
Answer:
A. A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 2, 2, 2, 2
Step-by-step explanation:
The relationship that has constant y-values is the one with zero slope. That would be the first table.
Answer: A
Step-by-step explanation: He is correct
May somebody help me.
Answer:
d
Step-by-step explanation:
it keeps going up by 2 and 2x2 is 4 4x2 is 8 so on?
number of faces?
number of edges?
number of vertices?
Answer:
no of face 8
no of vertices 16
no of edges 24
no links please and help
Answer:
x = 2
Step-by-step explanation:
(7x + 19) + 90 + 57 = 180
(7x + 19) + 147 = 180
7x + 19 = 33
7x = 14
x = 2
Have a nice day!
find the area of the circle
help anyone or somebody please o^o
Answer:
27 degrees
Step-by-step explanation:
Sum of angles in a triangle is 180 degrees.
x + 40 + 113 = 180
x + 153 = 180
x = 180 - 153
x = 27 degrees
can someone pls help
Answer:
10 walnuts..
Step-by-step explanation:
12 - 2 = 10
Answer:
10?
Step-by-step explanation:
12-2=10
trigonometry PLEASE HELP ASAP TYY
Answer:
x = 3.1
Step-by-step explanation:
Begin with the right triangle on the left. Looking at the 39° angle, the 7m side is the hypotenuse and the side marked h (see attached image) is the opposite side. The trig ratio using opposite and hypotenuse is sine.
[tex]\sin{39^\circ}=\frac{h}{7}\\\\h=7\sin{39^\circ}[/tex] Hold this thought!
Focus attention on the right triangle on the right. Looking at the 55° angle, h is the opposite side and the side marked x is the adjacent side. The trig ratio using opposite and adjacent sides is tangent.
[tex]\tan{55^\circ}=\frac{h}{x}\\\\x\tan{55^\circ}=h\\x\tan{55^\circ}=7\sin{39^\circ}\\x=\frac{7\sin{39^\circ}}{\tan{55^\circ}} \approx 3.1[/tex]
PLEASE HELP ME THIS IS DUE TODAY AND I WILL MARK BRAINLEST.
which graph represents a function?
Answer:
first graph is a function
Step-by-step explanation: