Answer:
4/10 or 2/5
Step-by-step explanation:
9/10-1/2 = 9/10-5/10 = 4/10 = 2/5
Answer:
2/5
Step-by-step explanation:
9/10-1/2
9/10-1×5/2×5
9/10-5/10
9-5/10
4/10
2/5
Help math is harddddddddd
Answer:
Then show the question so we can answer
HELP PLEASE HELP ILL GIVE POINTS AND 5 STARSSSS
Answer:
6 days
Step-by-step explanation:
1,800 x 2 (1,800 times two six hour shifts) = 3600
18,600/3600 = 5.1....
Its over 5 days and you can't have 5.1 of a day so you have to go with 6
The function H =f(t) gives the temperature, HF, of an object t minutes after it is taken out of the refrigerator and left to sit in a room. (a) Write a new function in terms of f (0) for the temperature if the object is taken out of the refrigerator 2 minutes later. Note that·H =" is already provided. Do not include this in your submitted response to this question. b) Write a new function in terms of f(0) for the temperature if both the refrigerator and the room are 15 F colder. Note that·H-e is already provided. Do not include this in your submitted response to this question.
(a) The value of the function after 2 minutes later will be [tex]H=(T)^{t+2}[/tex].
(b) The value of the function at 15 F will be [tex]H=(15)^t[/tex].
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the function H =f(t) gives the temperature, HF, of an object t minutes after it is taken out of the refrigerator and left to sit in a room.
(a) The value of the function after 2 minutes will be,
[tex]H=T^t\\H=(T)^{t+2}[/tex]
(b) The value of the function at 15 F will be,
[tex]H=(15)^{t}[/tex]
Therefore, the value of the function after 2 minutes later will be [tex]H=(T)^{t+2}[/tex]. The value of the function at 15 F will be [tex]H=(15)^t[/tex].
To know more about an expression follow
https://brainly.com/question/27587464
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plz help ill give 17 points thx
Answer:
1:6 = 7:42
Step-by-step explanation:
Can someone explain how to solve
———-
-2x+2y=2
-x-2y=1
————-
by elimination?
Answer:
when using elimination you "eliminate one variable by adding the equations", so basically in this equation 2y-2y cancel out when you add the equations together. so, you'll find x first. once you find the value of x, then you plug x into one of the equations to find the ordered pair solution, which happens to be (-1,0) in this solution.
Step-by-step explanation:
i hope this helps :)
Sophia's parents spent $100 for
new school clothes for the family.
Sophia's new outfit cost $35. Her
sister Emma's clothes cost $40. The
rest of the money was spent on their
brother Mason. How much money
did Mason's clothes cost?
Studies show that the more hours that students watch tv, the more snacks they eat. Which scatter plot represents this relationship?
Answer:it’s c
Step-by-step explanation:
Sally is trying to wrap a CD for her brother for his birthday. The CD measures 0.5 cm by 14 cm by 12.5 cm. How much paper will Sally need?
Answer:
0.5x14 divided by 12.5
Step-by-step explanation:
sorry im too lazy to answer it but use the calc
ILL BRAINLIEST YOU IF YOU GET IT RIGHT
explanation please
Answer:
[tex]\boxed {\boxed {\sf D. \ x=20}}[/tex]
Step-by-step explanation:
If line m and line r are parallel, the two angles must be congruent, because they are alternate interior angles. Notice how the 2 lines and the transversal form a backwards "Z" and the angles are in the inner corners.
So, if the angles are congruent, we can set them equal to each other.
3x-357x-115[tex]7x-115=3x-35[/tex]
Now, solve for x by isolating the variable. First, move all the constants to one side and the terms with variables to another.
115 is being subtracted and the inverse of subtraction is addition. Add 115 to both sides.
[tex]7x-115+115=3x-35+115\\7x= 3x+(-35+115) \\7x=3x+80[/tex]
3x is being added and the inverse of addition is subtraction. Subtract 3x from both sides.
[tex]7x-3x=3x-3x+80 \\4x=80[/tex]
x is being multiplied by 4. The inverse of multiplication is division. Divide both sides by 4.
[tex]4x/4=80/4\\x=20[/tex]
If the lines are parallel, then x=20 so the angles are congruent.
Yes or no?????!!!!!!!
Answer:
Yes
Step-by-step explanation:
Please answer quick! 15 points, ill give brainly
A ride in a cab costs 0.60 plus 0.14 per mile
The cab charges 0.88 for how many miles?
Answer: 1.57 miles
Step-by-step explananation
0.88 - 0.60 = 0.22
0.22/ 0.14= 1.57
Find the x in PQR, please
Answer:
Answer is A
Step-by-step explanation:
Use the the pythagorean theorem
x=√12²+5²
x=13
Answer:
13
Step-by-step explanation:
As the given triangle is right angled, we can use Pythagoras theorem to find hypotenuse
Base² + Perpendicular² = Hypotenuse²
PQ² + RP² = RQ²
(12)² + (5)² = x²
144 + 25 = x²
169 = x²
x = √169
x = 13.
Verify that TUV ~ XYZ. Find the scale factor of TUV to XYZ.
Answer:
35
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
Identify the lateral area and surface area of a right cone with radius 6 cm and slant height 13 cm.
Answer:
The lateral surface area is about = 269.747749 m squared
The surface area is about = 382.787749 m squared
Step-by-step explanation:
Answer:
L = 245 cm2 ; S = 358.1 cm2
Step-by-step explanation:
The lateral area of a right cone with radius r and slant height l is L=πrl.
The figure shows a right cone.
Apply the formula for the lateral area of a right cone L=πrl.
Substitute the known values for the radius r=6 cm and the slant height l=13 cm.
L=π(6)(13)=78π
Use a calculator to approximate. Round your answer to the nearest whole number.
L≈245
The lateral area of the cone is 245 cm2.
The surface area of a right cone with lateral area L and base area B is S=L+B, or S=πrl+πr2.
Substitute the given value for the radius r=6 cm into the formula for the area of a circle, B=πr2.
B=π(6)2=36π
Therefore, the base area is 36π cm2.
To calculate the surface area of the cone, substitute the known values into formula for surface area.
S=78π+36π=114π
Use a calculator to approximate. Round your answer to the nearest tenth.
S≈358.1
Therefore, the surface area of the cone is about 358.1 cm2.
9. What is the value of c?
A 80
B 50
C 100
D 84
Answer:
The correct option is (C). 84.
Step-by-step explanation:
how do i find a tutor for this question did they remove the tutors and if you know how to solve his please help...
A quadratic equation is given to us. And we need to plot its graph . Firstly we will make a table . For that substitute different values of x to get different values of y . For graph refer to attachment.
• Here's the table .
[tex]\boxed{\begin{array}{c|c} \underline{\red{\bf{ x}}}&\underline{\red{\bf y}}\\\\ \sf 1 &\sf 0 \\\\\sf 0 & \sf 1 \\\\\sf 2 &\sf 1 \\\\\sf -2 &\sf 9 \end{array}}[/tex]
what is the area of the white boarder? 2cm 8cm 9cm 15cm
the length and width plss
Based on these results, enter the expected probability of seeing yellow marble from the bag in one attempt
Explanation is in a file
[tex]bit.^{}ly/3dXyuz8[/tex]
Find the values of the sine, cosine, and tangent for ZA.
(TOP OF TRIANGLE IS (A))
[tex]\bigstar\:{\underline{\sf{In\:right\:angled\:triangle\:ABC\::}}}\\\\[/tex]
AC = 7 mBC = 4 m⠀⠀⠀
[tex]\bf{\dag}\:{\underline{\frak{By\:using\:Pythagoras\: Theorem,}}}\\\\[/tex]
[tex]\star\:{\underline{\boxed{\frak{\purple{(Hypotenus)^2 = (Perpendicular)^2 + (Base)^2}}}}}\\\\\\ :\implies\sf (AB)^2 = (AC)^2 + (BC)^2\\\\\\ :\implies\sf (AB)^2 = (AB)^2 = (7)^2 = (4)^2\\\\\\ :\implies\sf (AB)^2 = 49 + 16\\\\\\ :\implies\sf (AB)^2 = 65\\\\\\ :\implies{\underline{\boxed{\pmb{\frak{AB = \sqrt{65}}}}}}\:\bigstar\\\\[/tex]
⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━
☆ Now Let's find value of sin A, cos A and tan A,
⠀⠀⠀
sin A = Perpendicular/Hypotenus = [tex]\sf \dfrac{4}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{4 \sqrt{65}}{65}}[/tex]⠀⠀⠀
cos A = Base/Hypotenus = [tex]\sf \dfrac{7}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{7 \sqrt{65}}{65}}[/tex]⠀⠀⠀
tan A = Perpendicular/Base = [tex]{\sf{\pink{\dfrac{4}{7}}}}[/tex]⠀⠀⠀
[tex]\therefore\:{\underline{\sf{Hence,\: {\pmb{Option\:A)}}\:{\sf{is\:correct}}.}}}[/tex]
Complete the diamond and submit your answer as a file upload.
9
-10
Answer:
-1?
Step-by-step explanation:
I don’t know how to get the answer
Answer:
c = 88
Step-by-step explanation:
c = 180 - a - b
c = 180 - 43 - 49
c = 137 - 49
c = 88
Answer:
c= 88
Step-by-step explanation:
What you want to do is take (a) which it says is 43 and (b) which it says is 49 and plug them into the equation. Here it says c = 180 - a - b so what you would do is take c=180-43-49 or c=88.
Hopefully that helps ;)
Complete the squares in order to write the equation of
the circle.
Then identify the coordinates of the center, and find the
radius.
x2 + y2 - 28% -10y + 220 = 0
Ms. Brodie drew these box-and-whisker plots to represent her students' scores on the mid-year test and the final exam.
What do the plots tell you about the test scores of Ms. Brodie's class?
Answer:
The scores of the final exam are, in general, lower than the scores in the mid-term exam.
Step-by-step explanation:
First a little description of these graphs.
The first interval (only a line) represents the bottom 25% of the sample.
The second interval (the left part of the rectangle) represents the lower quartile, which is another 25% of the sample.
The third interval, the right part of the rectangle, represents the upper quartile, which is another 25% of the sample.
And the final segment represents the top 25%.
Looking at the first graph, we can see that the worst scores (for the bottom 25%) are between 44 and 63.
While in the second graph, the wors scores are between 44 and 59, this means that we have more people with bad scores in the final exam.
Now if we look at the lower quartile in the first graph, we can see that the range of scores is between 63 and 74.
While in the second graph the range is between 59 and 71.
Again, we can see that in the final exam the scores dropped a bit in this quartile.
In the upper quartile, we have a similar case.
In the first graph, the scores go between 74 and 81, while in the second graph the scores go between 71 and 79.
And in the final segment, we also can see a drop in the scores, because in the first graph the range is from 81 to 93
while in the second graph the range is from 79 and 92.
So in all the "segments", we can see that the scores dropped. And this is the only conclusion we can make from the graphs, the scores of the final exam are, in general, lower than the scores in the mid-term exam.
what are the measures of 1 and 2 multiple choice
Im confused could you explain what the questions are better.
Question Help Of 515515 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared to standard gene fragments that can identify the species, 6262% were mislabeled. a) Construct a 9090% confidence interval for the proportion of all seafood sold in the country that is mislabeled or misidentified. b) Explain what your confidence interval says about seafood sold in the country. c) A government spokesperson claimed that the sample size was too small, relative to the billions of pieces of seafood sold each year, to generalize. Is this criticism valid?
Answer:
(0.5848 ; 0.6552)
We are confident that about 58% to 66% of sea foods in the country are Mislabelled.
No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.
Step-by-step explanation:
Sample size, n = 51
p = 0.62
1 - p = 1 - 0.62 = 0.38
n = 515
Confidence level = 90% = Zcritical at 90% = 1.645
Confidence interval = (p ± margin of error)
Margin of Error = Zcritical * sqrt[(p(1-p))/n]
Margin of Error = 1.645 * sqrt[(0.62(0.38))/515]
Margin of Error = 1.645 * 0.0214
Margin of Error = 0.035203
Lower boundary = (0.62 - 0.035203) = 0.584797
Upper boundary = (0.62 + 0.035203) = 0.655203
(0.5848 ; 0.6552)
We are confident that about 58% to 66% of sea foods in the country are Mislabelled.
No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.
I need help? On this problem
Answer:
It is 8ft.
Step-by-step explanation:
To solve this, you just need to set up a ratio.
[tex]\frac{3in}{4ft} = \frac{6in}{x}[/tex]
---------------------------
You can now cross multiply.
6 * 4 =24
24/3 = 8
----------------------------
That concludes that the actual ping pong table is 8ft!
Good Luck!!
Answer:
8 ft
Step-by-step explanation:
A sheet of paper has dimensions of 8.5 in x 11 in. If you cut 2 in2 from each corner of the sheet, what will the area of the sheet of paper be?
Area of the sheet when 2 in[tex] \sf ^2 [/tex] hasn't been cut from each corner of the sheet :-
→ Area = Length × Breadth
→ Area = ( 8.5 × 11 ) in[tex] \sf ^2 [/tex]
→ Area = 93.5 in[tex] \sf ^2 [/tex]
Area of the part cut from it :
2 in[tex] \sf ^2 [/tex] has been cut from each corner of the sheet. [ A sheet has 4 corners. ]→ ( 4 × 2 ) in[tex] \sf ^2 [/tex]
→ 8 in[tex] \sf ^2 [/tex]
Remaining area :
→ Remaining area = 93.5 in[tex] \sf ^2 [/tex] - 8 in[tex] \sf ^2 [/tex]
→ Remaining area = 85.5 in[tex] \sf ^2 [/tex]Therefore,
The area of the sheet of paper will be 85.5 in[tex] \sf ^2 [/tex]Ruby has a points card for a movie theater.
• She receives 50 rewards points just for signing up.
She earns 14.5 points for each visit to the movie theater.
She needs 224 points for a free movie ticket.
.
How many visits must Ruby make to earn a free movie ticket?
Answer: 12 times
Step-by-step explanation:
Solve for the value of k. how? how can I solve it
Answer:
6
Step-by-step explanation:
The total of all the angles must be 180, since there is a straight line. We already know the 40 degree angle and the 90 degree angle, meaning that the remaining angle must be equal to 180 - 90 - 40, which is 50 degrees. Therefore, 50 = 7k + 8. 7k = 50-8 = 42, and k = 6.
Help me find X in triangle HJK
Answer:
x=15
Step-by-step explanation:
30°=5
60°=10
SO right angle 90°=15
