Answers
Answer:
<5 and <7= 56 degrees
Step-by-step explanation:
for <5: 180-124=56
<7 is equal to <5
Brainliest Plz?
Related Questions
Each envelope in the class contains the same number of triangles and quadrilaterals. Write an expression that
represents the total number of sides in the room.
Answers
Answer: 3t+4q.
Step-by-step explanation: Triangles have 3 sides, so there will be 3 sides for each triangle in the envelope. This is represented by 3t. Quadrilaterals have 4 sides, so there will be 4 sides for each quadrilateral in the envelope. This is represented by 4q. The total number of sides will be the number of triangle sides and the number of quadrilateral sides together.
An arborist examined trees in an orchard to see if they were infected with a virus. The arborist counted 7 infected trees and 43 healthy trees. What percentage of the trees in the orchard were infected?
Answers
Answer: Percentage of infected trees =2%
Step-by-step explanation:
Number of Infected trees =7
Number of healthy trees=43
Total number of trees in the orchard=43+7=50
Percentage of infected trees =Number of Infected trees/Total number of tress in the orchard x 100
7/50 x 100 =2%
When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval (CI) and margin of error (ME) for the true proportion of all college students who own a car.
Answers
Answer:
The margin of error will be "0.65". A further explanation is provided below.
Step-by-step explanation:
The given values are:
n = 343
x = 110
At 99% confidence level,
[tex]\alpha = 1-99[/tex]%
[tex]=1-0.99[/tex]
[tex]=0.01[/tex]
then,
[tex]\frac{\alpha}{2} =\frac{0.01}{2}[/tex]
[tex]=0.005[/tex]
or,
[tex]Z_{\frac{\alpha}{2} }=Z_{0.005}[/tex]
[tex]=2.576[/tex]
Now,
The point estimate will be:
⇒ [tex]\hat{P}=\frac{x}{n}[/tex]
⇒ [tex]=\frac{110}{343}[/tex]
⇒ [tex]=0.321[/tex]
or,
⇒ [tex]1-\hat{P}=1-0.321[/tex]
⇒ [tex]=0.679[/tex]
The margin of error will be:
⇒ [tex]E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )[/tex]
On substituting the above values, we get
⇒ [tex]=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }[/tex]
⇒ [tex]=2.576\times \sqrt{\frac{0.217959}{343} }[/tex]
⇒ [tex]=0.065[/tex]
hence,
⇒ [tex]\hat{P}-E<p<\hat{P}+E[/tex]
⇒ [tex]0.321-0.065<p<0.321+0.065[/tex]
⇒ [tex]0.256,0.386[/tex]
probability of rolling a factor of 45
Answers
Answer:
Step-by-step explanation:
POOP THEN PEEEEEE
PLEASE HELP!!!!
What is the probability that a student is in the 11th grade or plays football?
Answers
Answer:
40.4
Step-by-step explanation:
I used a calculator
Can someone plz help me plz I beg u :/
Answers
Answer:
i think the answer is b
Step-by-step explanation:
the others just dont feel right
A small airplane climbs at an
angle of 18° with the ground.
Find the horizontal distance it
has flown when it has reached an
altitude of 800 m.
a) 2,462 m
b) 260 m
c) 761 m
d) 2,588 m
e) 841 m
Answers
Answer:
Choice C, 761 m
Step-by-step explanation:
let horizontal distance be x
in the right triangle, cos= adj/hyp
cos(18)=x/800
x=cos(18)×800= 760.845≈ 761
A: 7x - 3x +10
B:+4x²+66-4
A-B=
Answers
Answer:
A-B=7x-3x+10-4x²-66+44x-52-4x²hope it helps
stay safe healthy and happy.
What is the angel of c??
Answers
Subtract (65+65) from 180° and you’ll get the angle of C, which is 50°
Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for $532
Answers
Answer:
★ Given :
Cost of 50 chickens and 30 ducks = $ 550
Cost of 44 chickens and 36 ducks = $ 532
★ To find :
Cost of chicken and duck
★ Solution :
Assume :
Cost of chicken = x
Cost of duck = y
According to question :
50x + 30y = 550 ......(1)
44x + 36y = 532......(2)
1) - (2)
(50x + 30y) - (44x + 36y) = 550 - 532
50x + 30y - 44x - 36y = 18
6x - 6y = 18
6(x - y) = 18
x - y = 18/6
→ x - y = 3 ....(3)
In equation 1 ,
50 x + 30y = 550
taking 10 common
10(5x + 3y) = 550
5x + 3y = 550/10
5x + 3y = 55
by taking 3 common
3(5/3 x + y) = 55
by dividing 3 on both sides
5/3x + y = 55/3 .....(4)
(3) + (4)
x - y + 5/3 x + y = 3 + 55/3
x + 5/3 x = 64/3
8/3 x = 64/3
by multiplying 3 on both sides
8x = 64
x = 64/8
→ x = 8
→ Cost of chicken = $ 8 ..
by putting value of x in equation 3
x - y = 3
8 - y = 3
y = 8 - 3
→ y = 5
→ Cost of ducks = $5..
Step-by-step explanation:
mrk me brainliest plz
Apply the distributive property to create an equivalent expression. (6m -7) ⋅ 4
Answers
Answer:
24m-28
Step-by-step explanation:
I hope this helps!
answer:
the simplified version of this is: 24m-28
NEED HELP ASAP!!!
complete the table to show an equivalent ratio where the number of ears at the start of 100.
Answers
Answer:
60
Step-by-step explanation:
If Isabelle sells 150 out of 250 ears of corn. Then the percentage of the ears of corn she sold will be 60%.
What is the percentage?The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.
Every morning she starts with 250 ears of corn.
On Saturday, Isabelle sells 150 out of 250 ears of corn.
Then the percentage of the ears of corn she sold will be
[tex]\rm P = \dfrac{150}{250} \times 100\\\\P = 15 \times 4\\\\P = 60 \%[/tex]
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
PLEASE NO LINKS Thanks :))
Answers
Answer:
C: 22 points.
Step-by-step explanation:
Find the Area of the below triangles #s 1 & 2 (Show all work)
Area =
1. H = 4 in.
B = 15 in.
Area =
2. H = 8 in.
B = 15 in.
Answers
Answer:
1) 30 in²
2) 60 in²
Step-by-step explanation:
a = (1/2)bh
----------------------
h = 4
b = 15
a = 1/2 * 4 * 15
a = 30 in²
----------------------
h = 8
b = 15
a = 1/2 * 8 * 15
a = 60 in²
Write the equation in point-slope form of the line that passes through the given point and has the given slope: (-2, -1); m=-3
Answers
Answer:
y+1=-3(x+2)
Step-by-step explanation:
point-slope form is the formula y-y1=m(x-x1), where (x1, y1) is a point and m is the slope
we are given a point (-2, -1) and a slope of -3
all we really need to do is substitute the given into the formula
remember: since the formula gives subtraction, we're going to be subtracting, even though we have negative numbers
substitute -2 as x, -1 as y and -3 as m
y--1=-3(x--2)
we can simplify this equation:
y+1=-3(x+2)
Hope this helps!
Can someone plz help me plz I beg u plz
Answers
Answer:
A.... X=3
Step-by-step explanation:
X = 3 cuz 3x3 is 9 which would be equal to the other side when you add it with the other 2 blocks
Ravi and Hasan bought 13⁄4 of pies , Ravi ate 1/3 and Hasan ate 2/3 of it
. How much pie is left?
Answers
Answer:
The final answer is 0
Step-by-step explanation:
1/3 + 2/3 = 1 which means Ravi and Hasan ate the whole thing
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
What are the domain and the range of this function?
•< •≤ •-5 •-4 •1 •7
D: ?, ? | X: ?, ?
R: ?, ? | Y: ?, ?
Answers
Answer:
The domain is the set of x -coordinates, {0,1,2} , and the range is the set of y -coordinates, {7,8,9,10} . Note that the domain elements 1 and 2 are associated with more than one range elements, so this is not a function.
Step-by-step explanation:
this is an example
Please help me with this
Answers
Answer:
12m
Step-by-step explanation:
its similar triangles the opposite is always 2times the side.
-8/13 + -4/13 pls solve and tell
Answers
Answer:
-12/13
Step-by-step explanation:
Given,
-8/13+(-4/13)
=-8/13-4/13
=-12/13
What are all expressions that are equivalent to 6(2–4n)
Answers
Answer:
I found 1 and its 18(6-12n)
Is this by chance a multiple choice question?
Step-by-step explanation:
Can someone please help me with this question for hw
Answers
Hope this helps ya :D
jada and diego are practing the piano for sn upcoming rehersal the table list the number of minutes each of them practiced in the past few weeks jadas practice time 10 10 20 15 25 25 8 15 20 20 35 25 40. Diegos practice time 25 10 15 30 15 20 20 25 30 45. plz help
Answers
Answer:
jadas practice time is 168 minutes or 2 hours 48 minutes. Diegos practice time is 235 minutes or 3 hours 55minutes hope this helps! have a nice day and good luck with your test!
Step-by-step explanation:
All dimensions of a cylinder are multiplied by 1.5. Which statement is true?
A. The total surface area is multiplied by 3.375.
The volume is multiplied by 2.25.
B. The total surface area is multiplied by 2.25.
The volume is multiplied by 3.375.
C. The total surface area is multiplied by 3.
The volume is multiplied by 4.5.
D. The total surface area is multiplied by 4.5.
The volume is multiplied by 3.
Answers
Answer:
The true statement is;
B. The total surface area is multiplied by 2.25
The volume is multiplied by 3.375
Step-by-step explanation:
By scale drawing proportionality, we have;
The amount by which all the dimensions of the cylinder are multiplied to create an image of the cylinder = 1.5
∴ The scale factor between the original cylinder and the image of the cylinder, S.F. = 1.5
By rule, we have;
The area factor of the surface area = S.F.² = 1.5² = 2.25
Therefore;
The total surface area of the original cylinder is multiplied by 2.25 to get the total surface area of the image of the cylinder
By rule, we have;
The volume factor = S.F.³ = 1.5³ = 3.375
Therefore;
The volume of the original cylinder is multiplied by 3.375 to find the volume of the image of the cylinder.
Answer:
B
Step-by-step explanation:
Denise's scores on her math assignments were 91, 87, 100, 88, 95, and 91. If she earns scores of 98, 100, 88, and 86 on her next four assignments, how will the median of all of her scores be affected? pls help
Answers
Answer: look down below
Step-by-step explanation:
BEFORE
91+87+100+88+95+91=552
552\6=92
Median=92
the 6 is how much data points we have
AFTER
91+87+100+88+95+91+98+100+88+86=924
924/10=92.4
the 10 represnts how many data points we have now
MEDIAN=92.4
the median will be increased by 0.4
I know the answer but I don’t know how to solve it
Answers
Answer: b
Step-by-step explanation:
I can't see the question
Find (−7x+6)−(−10x+8)
Answers
Answer:
3x-2
Step-by-step explanation:
(-7x+6)-(-10x+8)
open the parenthesis
-7x+6+10x-8
combine like terms
3x-2
Brainist to who answers this!
Answers
Answer:
13t² + 2t + 9
Step-by-step explanation:
(9t² - 3t + 5) - (-4t² + 5t + 4)
Solving like terms
-(-4t²) becomes + 4t²
(9t² + 4t²) + (-3t + 5t) + (5+4) =
13t² + 2t + 9
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
URGENT!!
Solve for X
Answers
Answer:
[tex]\frac{X}{100} =\frac{600}{800} \\\\X = \frac{6}{8} \times 100 = 75[/tex]
Jonas received a gift card of $35.00 to use for an online App Market to buy applications for his tablet. All Apps cost $1.75. Which table represents the relationship between x, the number of Apps Jonas can buy, and y, the balance remaining on his gift card.
Answers
Answer:
A)
Step-by-step explanation:
The starting balance is $35
after one game purchase, the balance is 35-1.75=33.25
after two game purchases, the balance is 35-(1.75*2)=31.50