Answers
Answer:
13. 9.77 inches (rounded to 3 s.f.)
14. 249m² (rounded to 3 s.f.)
Step-by-step explanation:
13. To find the arc length, the formula is the angle of the arc out of 360° multiplied by the circumference of the full circle. Circumference of circle: pi × r × 2
[tex]\frac{80}{360}[/tex] × pi × 7 × 2 = 3[tex]\frac{1}{9}[/tex]pi
= 9.77 inches (rounded to 3 s.f.)
14. To find the sector area, the formula is the angle of the sector out of 360° multiplied by the area of the full circle. Area of circle: pi × r × r
[tex]\frac{285}{360}[/tex] × pi × 10 × 10 = 79[tex]\frac{1}{6}[/tex]pi
= 249m² (rounded to 3 s.f.)
Related Questions
A local school donated canned goods to help the community. Cans were packed into boxes each weighing 16.4 pounds. The volunteers packed 9 boxes. How many total pounds of food did they collect? A. 97.6 B. 147.6 C. 976 D. 1,476
Answers
Answer:
147.6 pounds of foodStep-by-step explanation:
Each box weighed 16.4pounds, if the volunteers packed 9 boxes, we need to calculate the total pounds of food collected. Using the equality postulate;
1 box = 16.4 pounds
9 boxes = x pounds of food
Cross multiply;
1 * x = 9 * 16.4
x = 147.6 pounds of food
Hence the volunteers collected 147.6 total pounds of food
Plz hurry I have 10:00 minutes. Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the
equation –2x+3-4-3 x2
*x=1
07-13
07-
3
Answers
Answer:
the first one
Step-by-step explanation: i think . pls don't blame me if you get it wrong im just trying to help
Answer:
= -8x-1
Step-by-step explanation:Let's simplify step-by-step.
−2x+3−4−3x(2)
=−2x+3+−4+−6x
Combine Like Terms:
=−2x+3+−4+−6x
=(−2x+−6x)+(3+−4)
=−8x+−1
Answer:
=−8x−1
The mean distance of Venus from the sun is about 1.08 x 10^8 km. Write that number in standard form
Answers
Answer:
It is 108,000,000
Step-by-step explanation:
You move the decimal 8 times to the right since it's a positive number!
Which expression is not equivalent to the other three?
O 2x + 2+ 2x + 3x - 8
O 4 + 7x - 2
O-2 + 5x + 2x - 4
O ex-X-6
Answers
9514 1404 393
Answer:
B. 4 +7x -2
Step-by-step explanation:
The simplified values of the expressions are ...
7x -67x +27x -67x -6The second expression listed is not equivalent to the others.
Answer:
It's B. 4 + 7x - 2
Best of luck love
What is the perimeter of the triangle?
2(x+3)
6x
4(x – 10)
Answers
Answer:
Step-by-step explanation:
12x-34
Add all the sides together
2(x+3) + 6x + 4(x – 10)
distribute:
2x+6 + 6x + 4x-40
and add:
12x-34
Rob sells electronics and earns $625 per week, plus 12% of his sales. Last week, he sold $3250 worth of electronics. What was his total earnings for last week?
Answers
Answer:
$1,015
Step-by-step explanation:
Given that:
Weekly earning = $625
Commission = 12% of sales
sales made last week = $3250
Last week earning = weekly earning + commision on sale
Commission on sale = 12% of sales
Commission on sale = (0.12 * 3250) = $390
Last week earning = weekly earning + commision on sale
Last week earning = $625 + $390 = $1,015
I need help with this problem
Answers
Answer:
in this case you can use protector also but
there is another way
Step-by-step explanation:
as we know sum of a triangle is 180 degree
so let's D= 2x,x
35+x+2x=180
3x+35=180
3x=180-35
3x=145
x=145÷3
x =46.06
The copy machine in the teacher’s lounge can print 3 single-sided pages in 16 seconds. Mr. Adams has 25 students in his class, and has to give three one-page quizzes on Friday. How long will it take the machine to print all of Mr. Adams’ copies if he needs to print one copy of each quiz for every student?
Answers
Answer:
150 seconds
Step-by-step explanation:
if there perimeters are the same 8x (2) = (4x+10) 14
Answers
Answer:252
Step by step explanation:
db
need help asap please!!
Answers
Answer:
Step-by-step explanation:
Your worth it love u
Marley used 7 cups of water to make 4 loaves of French bread. What equation can be used to model the total cups of water needed y for making x loaves of French bread? Write the equation in the form y =kx .
Answers
Answer:
[tex]\displaystyle y=\frac{7}{4}.x[/tex]
Step-by-step explanation:
Proportional Relationship
It's the type of relationships between two variables where their ratios are equivalent.
In a proportional relationship, one variable is always a constant value by the other. That constant is known as the constant of proportionality.
A proportional relationship between the variables x and y is written as:
y=k.x
For this problem, y represents the cups of water needed for making x loaves of French bread.
We know Marley used y=7 cups of water to make x=4 loaves of French bread. Substituting into the equation:
7=k.4
Solving for k:
[tex]\displaystyle k=\frac{7}{4}[/tex]
The equation to model the problem is:
[tex]\mathbf{\displaystyle y=\frac{7}{4}.x}[/tex]
Adam currently runs about 40 miles per week, and he wants to increase his weekly mileage by 10%. How many miles will Adam run per week?
Answers
it would be 50miles i think or it would be 44
3 3/8 divided by 9=?
Help! Please! Thank you for your time!
Answers
Answer:
0.375
Step-by-step explanation:
ignore the top but please help. will ignore brainliest
Answers
Answer:
the in's are 6 7 and the outs are 12 and 0.2
Step-by-step explanation:
An unbalanced force causes a change in _________________ or _________________________.
50 POINTS!
A balanced force ____________________________________. It has a net force of _______________.
The UNIT for force is the _______________________________. It is abbreviated ________.
Answers
Answer:
What?
Step-by-step explanation:
A school assembly had 25 students in attendance, and 20% of them were first-graders. How many first-graders were at the assembly?
Answers
Answer:
5
Step-by-step explanation:
20%=0.2
25 x 0.2 = 5
What is the area of △MNP?
A. 40 m2
B. 60 m2
C. 68 m2
D. 127.5 m2
Answers
answer is B. 60 m2
Step-by-step explanation:
17²=15²+MP²
289=225+MP²
289-225=64
So... MP²=64.... MP=8
8×15= 120
120÷2=60
Hey uhm.. im not super good at math so i need help with this : 0.45/4.2 = x/14 solve for x
Answers
Answer:
x= 1.5
Step-by-step explanation:
what is the slope of this equation? 6x+3y=24
Answers
Answer:
Slope of the given equation is
M = 8
Eight bottles of soda and four bags of chips cost $16. Six bottles of soda and 7 bags of chips cost $14. How much does a bottle of soda cost? How much does a bag of chips cost?
Answers
Answer: soda 1.75 dollars and chips is 0.50 dollars
Step-by-step explanation:you have to work out the question like a simultaneous equation so key s=soda and c=chips
8s+4c=16
6s+7c=14 make chips equal
56s+28c=112
24s+28c=56 Take the equations away
32s=56
S=56\32
S=7/4
S=1.75 sub that answer in the first equation
8*1.75=14
14+4c=16
4c=2
C=0.5
The price of apples is $3.60 for 3 pounds. Write the price as a unit rate.
Answers
Answer:
B
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Maura is going on a plane. She can't have a carry-on backpack that weighs more than 10 pounds. She weighed the items she wants to pack on a sensitive scale: book: 5.142 pounds, jacket: 3.6 pounds, backpack: 1.28 pounds. What is the total weight of these items? If all of these items are in her backpack, can she take all of these things?
Answers
Answer:
2.098 pounds total these pounds
Whats 2/3 divided by 4
Answers
Answer:
(2/3) / 4 = 1/6 or 0.16666
Step-by-step explanation:
a boat travels 36 miles in one hour. what is it’s speed in miles per minute
Answers
Answer:
What they said
Step-by-step explanation:
-2( x - 3 ) = 8x -3( 5 + x )
find the value of x
Answers
Answer:
0.45
Step-by-step explanation:
Help please geometry, show all work!! Thanks :-)
Answers
Answer:
t = 18
Step-by-step explanation:
thank me later
To celebrate the first day of school, Reagan brought in a tray of caramel brownies and walnut brownies. The tray had a total of 20 brownies, of which 10% were caramel. How many caramel brownies did Reagan bring?
Answers
Answer:
2 were caramel
Step-by-step explanation:
What the slope of (0,5) and (8,2)
Answers
Write the statement "All right angles are congruent" in if-then form.
Answers
Answer:
If all right angles equal 90 degrees then all right angles are congruent.
The subtotal for a TV was $1,029.99. What does that mean?