Can some one plz help i really dont wna failll plzzz
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(Score for Question 2: ___ of 8 points)
2. Find the Perimeter and area of the following shape using correct math
a. Perimeter:
b. Area
Answer:
(a) 33.7 cm
(b) 79.25 cm²
Step-by-step explanation:
(a)
Find the perimeter of the semicircle (circumference ÷ 2).
10 cm is the diameter of the semicircle.
The perimeter of the semicircle
= (10 × 3.14) ÷ 2
= 31.4 ÷ 2
= 15.7 cm
The perimeter of the shape
= 15.7 + 10 + 4 + 4
= 33.7 cm
(b)
Find the area of the circle then divide to 2
The formula of the area of a circle
= πr²
The radius of the circle
= 10 ÷ 2
= 5 cm
The area of the semicircle
= (3.14 × 5²) ÷ 2
= 78.5 ÷ 2
= 39.25 cm²
The area of the rectangle
= 4 × 10
= 40 cm²
The area of the shape
= 39.25 + 40
= 79.25 cm²
Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains.
If he has 2 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?
Answer:
20
Step-by-step explanation:
dekameter=10 meters
dekameter*2
20 meters
20/20=1
20 meter long pieces
To get the paint color moss green, 2 parts
violet paint is mixed with 3 parts yellow
paint. How many parts yellow paint
should be mixed with 5 parts violet
paint to make moss green paint?
Evaluate (x^3-x^2-3x+8)+(2x^3+3x^2+x-7)
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 3x^3+2x^2-2x+1
Explanation:
x^3 + 2x^3 - x^2 + 3x^2 -3x + x + 8 - 7 = 3x^3+2x^2-2x+1
I hope this helped!
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- Zack Slocum
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Help me pls please pretty please help me
Answer:
[tex]3\frac{1}{4}[/tex] inches
Step-by-step explanation:
Height of the tallest conifer = [tex]9\frac{1}{2}[/tex] inches
Height of the shortest conifer = 6 + measure of one segment on the number line
Measure of one segment on the number line = [tex]\frac{6\frac{1}{2}-6}{2}[/tex]
= [tex]\frac{\frac{1}{2}}{2}[/tex]
= [tex]\frac{1}{4}[/tex]
Therefore, height of the shortest conifer = 6 + [tex]\frac{1}{4}[/tex]
= [tex]6\frac{1}{4}[/tex]
Difference in tallest and shortest conifer = [tex]9\frac{1}{2}- 6\frac{1}{4}[/tex]
= (9 - 6) + [tex](\frac{1}{2}- \frac{1}{4})[/tex]
= 3 + [tex]\frac{1}{4}[/tex]
= [tex]3\frac{1}{4}[/tex] inches
what is the slope of a line parallel to the line whose equation is y=2/3x+7 fully simplify your answer
Answer:
2/3
Step-by-step explanation:
When a line is parallel to another, it means that there are never going to be any solutions(they won't ever intersect each other.) To do so, the slope of the lines have to be the same. It doesn't matter what the y-intercept is.
So the slope of the second line is going to be the same as the first line: 2/3
Which three side lengths will NOT form a triangle?
a- 4cm, 2cm, 8cm
b- 5in, 8in, 4in
c- 2ft, 3ft, 6ft
d- 5m, 2m, 4m
Answer:
i believe it's A bc 8 cm is too long to reach 4 cm
Find the surface area of a pringles can that has a radius of 1.6 inches and a height of 9.8 inches. (Find the WHOLE surface area, including the top cover.
Answer:
10.55
Step-by-step explanation:
help pleaaseee rons of points and brainliest just need help.
Since both equations equal y they need to equal each other.
2x - 5 = -3x + 10
Add 3x to both sides:
5x -5 = 10
Add 5 to both sides
5x = 15
Divide both sides by 5
X = 3
Now solve for y by replacing x with 3:
Y = 2(3)-5 = 6-5 = 1
Y = -3(3)+ 10 = -9+ 10 = 1
Check: replace y with 1 and solve for x:
1 = 2x -5
Add 5 to both sides
6 = 2x
Divide both sides by 2
X = 3 ( True)
Write the percent of free space on the computer as a decimal . Volume capacity free space%free space(c:)150GB 60GB 40%
Answer:
Here we know that:
Volume capacity = 150 GB
Free space = 60GB
Here we know that 150 GB represents the 100%, then which percentage represents the 60 GB of free space?
Well, we can write:
60 GB = X
150 GB = 100%
Now we can take the quotient between these two equations:
(60GB/150GB) = X/(100%)
Now we can solve this for X
(60GB/150GB)*(100%) = X = 0.4*100% = 40%
Answer:
there are right :)
Step-by-step explanation:
please answer(46 points).Question=9a+1≥19
Help me pls I’m so confused
Answer:
(2u+8)(2u+10) inches^2=4u^2+36u+80 inches^2
Step-by-step explanation:
I don't know what the options are. But I'll try to help you anyway. Is that variable for the width of the frame... u? We'll just use u.
So the area of a rectangle is found using length* width. To find the combined area of the mat and the photo, we need the combined length and the combined width.
combined length=u+8+u
(Think of it from the top to the bottom: the top strip has a length of u inches, 8 is given, and the bottom strip is also u inches long.) You can simplify it to get 2u+8 inches.
combined width=u+10+u=2u+10 inches
To find the area, you need to multiply these dimensions.
(2u+8)(2u+10) inches^2
I think this would be your answer for Part B, because it's factored.
I think for Part A, you need to multiply it all out.
=2u(2u+10) + 8(2u+10)
=4u^2+20u + 16u+80
=4u^2+36u+80 inches^2
Hope I could help you!
How tall, in cm, is 1 cup? Explain how you determined the height of 1 cup.
Answer:
1 cup is 14 cm because if two cups is 16 and 4 cups is 20 then as cups stack 2 cm is added from each cup. To get to 20 from 16 its 4 cm.
Step-by-step explanation:
pls answer asap no wrong answers pls
Answer:
401.92
Step-by-step explanation:
The formula used the calculate the volume of a cylinder is
πr^2h
π= 3.14
H= 8
r= 4
Volume= 3.14 × 4^2 × 8
= 3.14 × 16×8
= 401.92
Hence the volume is 401.92
If a polynomial has two factors: It will either have two zeros or the same zero twice.
True or false
Find the measure of the interior angles.
Reggie pays $982.27 each month to rent an apartment. How much will it cost him to rent the apartment for one year?
Answer:
11787.24
Step-by-step explanation: If it costs 982.27 each month, multiply that number times 12 to equal a full year to get your answer.
Mrs. Avery is going to randomly select one student from her class to read a poem out loud. There are 151515 boys and 131313 girls in her class.
What is \text{P(boy})P(boy)start text, P, left parenthesis, b, o, y, end text, right parenthesis?
Answer:
53.57%
Step-by-step explanation:
Answer:
53.57%
Step-by-step explanation:
10. Please help me with this question
Answer:
9
Step-by-step explanation:
because 1 is one hour and the first line across is 5 so it it is not 6 miles so it has to be 9 miles she rode
what is it m + 5 = 8.9 solve for the
Answer:
3.9
Step-by-step explanation:
m+5=8.9
m=8.9-5
m=3.9
given 4p = 18-5q. Calculate
i) value when q is 2
ii) value when p is 2
Answer:
i). 2 ii). 2
Step-by-step explanation:
i). 4p = 18 - 5(2)
4p = 18 - 10
4p = 8
p = 2
ii). 4(2) = 18 - 5q
8 = 18 - 5q
-10 = - 5q
q = 2
find the gradient of a line that is perpendicular to 8y+4x=5
Answer:
gradient = 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope (gradient) and c the y- intercept )
Given
8y + 4x = 5 ( subtract 4x from both sides )
8y = - 4x + 5 ( divide the terms by 8 )
y = - [tex]\frac{1}{2}[/tex] x + [tex]\frac{5}{8}[/tex] ← in slope- intercept form
with gradient = - [tex]\frac{1}{2}[/tex]
Given a line with gradient m then the gradient of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{1}{2} }[/tex] = 2
2 is the gradient of a line that is perpendicular to 8y+4x=5
What is slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane
The slope of line can also be called ad gradient of a line.
The standard form of line or slope intercept form of a line is given by
y=mx+c
where m is the slope of line and c is the y intercept.
The given equation of line is 8y+4x=5
We need to convert the equation of line to Slope intercept form
8y=5-4x
Divide both sides by 8
y=5/8-4/8x
y=-1/2x+5/8
So m is -1/2.
Two lines are said to be perpendicular if m₁m₂ =-1
if m₁=-1/2
then we need to calculate m₂
-1/2m₂=-1
m₂=2
Hence gradient of a line that is perpendicular to 8y+4x=5 is 2.
To learn more on slope of line click:
https://brainly.com/question/14511992
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algebraic inverse proportion
y is inversely proportional to x.
When y=30, x=3
Work out y when x=6
Answer: tell me if i am wrong
yx = k, where k is a real constant.
When y = 30, x = 3.
=> k = (30)(3) = 90.
Hence when y = 6, x = k/y = (90)/(6) = 15.
Step-by-step explanation:
Can someone help me thanks you
Answer:
Step-by-step explanation:
M = sum of the terms / number of the terms
1. Mean = 145/5 = 29
Option A is the correct answer
2. Mean = 35 /5 = 7
Option B is the correct answer
Answer:
1. 29 (A) 2. 7 (B)
Step-by-step explanation:
1. 2+57+38+42+6 = 145
145/5 = 29
2. 4+9+7+10+5 = 35
35/5 = 7
help help mEEEEEEEEEEEE PLEASE PLEASE
Answer:
The length is 12
Step-by-step explanation:
rectangle = 2w + 2l
Substitute 15 with w
2l + 2(15) = 54
Multiple
2l + 30 = 54
Subtract 30 from both side
2l = 24
divide by 2
l = 12
Use
I
=
P
R
T
I=PRT to find the total amount in the savings account. Type in "money form".
$350.00 at 6.2% for 2 years
Answer:
43.4
Step-by-step explanation:
When he was measuring herbs on his balance scale, Neville placed a 1/2 gram weight, then a 1/5 gram weight, and finally a 1/8 gram weight before the scale balanced. How much did his herbs weigh?
Answer: [tex]\dfrac{33}{40}\ gm[/tex]
Step-by-step explanation:
Given
Neville place three weights in the sequence
[tex]\dfrac{1}{2}\ gm,\dfrac{1}{5}\ gm,\dfrac{1}{8}\ gm[/tex]
The total weight of the three weights is
[tex]\Rightarrow \dfrac{1}{2}+\dfrac{1}{5}+\dfrac{1}{8}=\dfrac{20+8+5}{40}\\\\\Rightarrow \dfrac{33}{40}\ gm[/tex]
Thus, herbs weigh [tex]\frac{33}{40}\ gm[/tex]
George and Michelle each claimed to have the better recipe for chocolate chip cookies. They decided to conduct a study to determine whose cookies were really better. They baked a batch of cookies using their own recipe. George asked a random sample of his friends to taste his cookies and to complete a questionnaire on their quality. Michelle asked a random sample of her friends to complete the same questionnaire. For her cookies. They than compared the results. Which of the following statements about this study is false?
A. Because George and Michelle have a different population for friends, their sampling procedure makes it difficult to compare the recipes
B. Because George and Michelle each used only their own respective recipes, their cooking ability is confounded with the recipe quality
C. Because George and Michelle each used only the ovens in their houses, the recipe quality is confounded with the characteristics of the oven
D. Because George and Michelle used the same questionnaire, their results will generalize to the combined population of their friends
E. Because George and Michelle each baked one batch, there is no replication of the cookie recipes
Help me please I suck at this
Answer:
Radius is 4.2
Diameter is 8.4
Step-by-step explanation:
diameterd=2r
d=2×4.2
d=8.4
Plz mark as brainllest
Answer:
The answer for radius is 4.2 cm. The answer for diameter is 8.4 cm.
Step-by-step explanation:
If the line cuts halfway through the middle it is a radius, as you can see there. It says 4.2 cm, so that's your radius. If the line is straight through the circle and not cut in half then it is a diameter. The radius is half of the diameter. So if you add 4.2 or multiply 4.2x2 then you get 8.4 which is your diameter.