Based on the graph, which of the following represents a solution to the equation? (4 points) A. (−2,−3) B. (3, 1) C. (1, 3) D. (3, 2)
Answer:
C (1,3)
Step-by-step explanation:
The only choice that appears on the line is 1 on the horizontal or X axis and 3 on the vertical or Y axis.
Which of the following principles of experimental design reduces errors due
to chance by repeating an experiment on different subjects under different
conditions?
A. Placebo effect
B. Replication
C. Randomization
D. Control
E. Blindness
Answer:
Replication
Step-by-step explanation:
Replication meaning it's going to be repeated, also it said replication was right on a-pex
please help me on the question on the bottom
The probability of an event is 75%. Describe the likelihood of the event.
I need help with this...
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.
Answer:
1/3
Step-by-step explanation:
just convert it?
3/10
Step-by-step explanation:
60% is the same as 60/100
90% is the same as 90/100
90-60=30
30/100
30/100 is divided by 10 on each side to simplify it to 3/10
Mark all the inequalties to make the statement true. Hint: There are more than 1 answers!
p > -12
0
12
1
-100
HELP PLS! MIDDLE SCHOOL MATH!!!!
You spin the spinner once.
What is P(7)?
Write your answer as a percentage rounded to the nearest tenth.
PLS LOOK AT THE IMAGE!!!!
You are making the kite shown at the right from
five pairs of congruent panels. In parts (a)-(d)
below, use the given information to find the side
lengths of the kite's panels.
Answer:
a. Side lengths of ΔBEX are;
BE = 15 ft.
EX = 12 ft.
BX = 9 ft.
b. Side lengths of XEFY are;
XY = 6 ft.
EX = 12 ft.
FY = 7.5 ft.
EF = 7.5 ft.
c. Side lengths of YFGZ are;
GZ = 6 ft.
FY = 7.5 ft.
YZ = 2 ft.
FG = 2.5 ft.
d. Side length of triangle ZGC
GZ = 6 ft.
GC = 10 ft.
ZC = 8 ft.
Step-by-step explanation:
The given parameters are;
XY : YZ : ZC is 3 : 1 : 4
The length of BC = 25 in.
The length of EB = 15 in.
Therefore, EC = √(BC² - EB²) = √(25² - 15²) = √400 = 20 in.
Given that EX║ YF║GZ, we have;
EF : FG : GC is 3 : 1 : 4 (Parallel lines cut segments in equal proportions)
Therefore;
EF = 20 × 3/(3 + 1 + 4) = 7.5 ft.
FG = 20×1/8 = 2.5 ft.
GC = 20×4/8 = 10 ft.
EC/EX = BC/EB
20/EX = 25/15
EX = 15×20/25 = 12 ft.
XC = √(EC² - EX²) = √(20² - 12²) = 16
XY : YZ : ZC is 3 : 1 : 4
Therefore;
XY = 16 × 3/8 = 6 ft.
YZ = 16 × 1/8 = 2 ft.
ZC = 16 × 4/8 = 8 ft.
GZ = √(GC² - ZC²) = √(10² - 8²) = 6
Area of triangle ΔZGC = 1/2×6×8 = 24 ft²
XB = BC - XC = 25 - 16 = 9 ft.
Area of ΔBEX = 1/2×9×12 = 54 ft²
a. Side lengths of ΔBEX are;
BE = 15 ft.
EX = 12 ft.
BX = 9 ft.
FY = √(FC² - YC²) = √((10 + 2.5)² - (8 + 2)²) = 7.5 ft.
Area of YFGZ = (GZ + FY)/2 × YZ = (6 + 7.5)/2 × 2 = 13.5 ft²
Area of YFGZ = 13.5 ft²
Area of XEFY = XY × (EX + FY)/2 = 6 × (12 + 7.5)/2 = 58.5 ft.²
b. Side lengths of XEFY are;
XY = 6 ft.
EX = 12 ft.
FY = 7.5 ft.
EF = 7.5 ft.
c. Side lengths of YFGZ are;
GZ = 6 ft.
FY = 7.5 ft.
YZ = 2 ft.
FG = 2.5 ft.
d. Side length of triangle ZGC
GZ = 6 ft.
GC = 10 ft.
ZC = 8 ft.
Given the equation 6x + 18 = 72:
Part A: Write a short word problem about a purchase made to illustrate the equation. (6 points)
Part B: Solve the equation showing all work. (4 points)
Answer:
Part A: You are buying candy bars online. They cost $6 each and there is an $18 shipping fee. You have $72 to spend. How many candy bars can you get?
Part B: x=9
Step-by-step explanation:
6x + 18= 72
You want to get x alone:
Subtract 18 from both sides
Rewrite:
6x= 72-18
Now, subtract 72-18
Rewrite:
6x= 54
Divide 6 from both sides
So, that would be 54/6
Answer: x=9
Hope this helps!!
Answer:
Step-by-step explanation:
Answer: x=9
I need help, please im stuck on this problem
Answer:
4 yards
Step-by-step explanation:
divide it by 3
Question #8 is 5(x + 2) = 30
Step-by-step explanation:
Question:-\(\\ \tt{:}\leadsto 5(x+2)=30\)
SOLUTION:-\(\\ \tt{:}\leadsto 5(x+2)=30\)
\(\\ \tt{:}\leadsto 5x+10=30\)
\(\\ \tt{:}\leadsto 5x=30-10\)
\(\\ \tt{:}\leadsto 5x=20\)
\(\\ \tt{:}\leadsto x=\dfrac{20}{5}\)
\(\\ \tt{:}\leadsto x=4\)
\(\huge\text{Hey there!}\)
\(\large\textsf{5(x + 2) = 30}\\\large\textsf{5(x) + 5(2) = 30}\\\large\textsf{5x + 10 = 30}\\\large\text{SUBTRACT 10 to BOTH SIDES}\\\large\textsf{5x + 10 - 10 = 30 - 10}\\\large\text{CANCEL out: 10 - 10 because it gives you 0}\\\large\text{KEEP: 30 - 10 because it helps you solve for your x-value}\\\large\text{NEW EQUATION: \textsf{5x = 30 - 10}}\\\large\text{SIMPLIFY IT}\uparrow\\\large\textsf{5x = 20}\\\large\text{DIVIDE 5 to BOTH SIDES}\\\mathsf{\dfrac{5x}{5} = \dfrac{20}{5}}\)
\(\large\text{CANCEL out: }\rm{\dfrac{5}{5}}\large\text{ because it gives you 1}\\\large\text{KEEP: }\rm{\dfrac{20}{5}}\large\text{ because it gives you the result of the x-value}\\\text{NEW EQUATION: x = }\rm{\dfrac{20}{5}}\\\large\text{x = 20\ }\div\large\text{ 5}\\\large\text{SIMPLIFYIT!}\uparrow\\\large\textsf{x = 4}\\\huge\boxed{\textsf{Therefore, your answe is: x = 4}}\huge\checkmark\\\\\\\\\\\huge\text{Good luck on your assignment \& enjoy your day!}\\\\\\\\\frak{Amphitrite1040:)}\)
PLEASE HELP!! NO WRONG ANSWERS <3
Answer:
bottom left
Step-by-step explanation:
Answer: bottom left one
Step-by-step explanation:
Please answer the question below. Topic: Scale drawings
Find an exact value. cosine of negative seven pi divided by twelve a) square root of six plus square root of two b) quantity square root of six minus square root of two divided by four c) square root of two minus square root of six d) quantity square root of two minus square root of six divided by four
Answer:
The correct option is d
d) (√2 - √6)/4
Step-by-step explanation:
The term given in the question is:
cos (-7π/12)
Solve the term by using scientific calculator:
cos (-7π/12) = (1 / 2√2) - (√3 / 2√2)
Mulitplying and dividing both terms on the right hand side of equality with 2√2:
(1 / 2√2) - (√3 / 2√2) = (1 / 2√2)(2√2 / 2√2) - (√3 / 2√2)(2√2 / 2√2)
(1 / 2√2)(2√2 / 2√2) - (√3 / 2√2)(2√2 / 2√2) = 2√2 / (2√2)² - (2√2)(√3) / (2√2)²
2√2 / (2√2)² - (2√2)(√3) / (2√2)² = 2√2 / (4)(2) - 2√6 / (4)(2)
2√2 / (4)(2) - 2√6 / (4)(2) = √2/4 - √6/4
√2/4 - √6/4 = (√2 - √6)/4
Grace thinks of a mixed number. She multiplies it by 3. 1 Then she subtracts 7- 3 Then she divides by 5. 3 Her answer is 4 What mixed number did Grace start with?
first answer thats correct ill give brainliest
Answer: hi I think answers this but I might be wrong 19 9/100
Step-by-step explanation:
we have to do inverse operations!
hope this helps!
pls vote for brainliest!!
collin is building vegetable gardens. the first garden will be 3 feet long and 2/3 wide. the second garden will be 3 feet long and 3/2 feet wide. how do these areas compare
How can equations help you model the relationship between two quantities
Answer:
Construct functions to model linear relationships between two quantities. ... Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.
Step-by-step explanation:
Hope this helps! =D
A department store stocks pants and shorts in the colors black and blue. The relative frequency of their orders for blue pants is half the relative frequency of their orders for black shorts. Which two-way frequency table could represent the data from the store's orders?
Answer:
Table 2
Step-by-step explanation:
The question is to identify the table where the relative frequency of orders for blue pants is half the relative frequency of their orders for black shorts.
We are interested in the number of blue pants and black shorts.
If we name them as p and b respectively, then we are looking for a table where s/p=2
Let's verify relevant data in all tables:
Table 1:
p= 82, s= 41 ⇒ s/p= 41/82 ≠ 2, no, not this oneTable 2:
p= 57, s= 114 ⇒ s/p= 114/57 = 2, yes, it is the oneTable 3:
p= 78, s= 110 ⇒ s/p= 110/78 ≠ 2, no, not this oneTable 4:
p= 44, s= 150 ⇒ s/p= 150/44 ≠ 2, no, not this oneSo only one of tables- the second one from top represents the required data.
Answer:
The second table
Step-by-step explanation:
I did the test.
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? **Select all that apply**. Explain your reasoning for the choices you select.
A.) 1520
B.) 20+0.1520
C.) 1.1520
D.) 1510020
Answer:
15/100 * 20, because the meal is 20 dollars and to find the percent of something you divide it with 100 so you will divide 15 with 100 and you’ll get 0.15. Then you will times it with the amount the meal cost because thats the charge. So 0.15•20 and you’ll get $3. A 15% tip for a $20 meal is $3.
All of the following are irrational except _____.
√5
√9
√7
OR
√11
Answer:
9
Step-by-step explanation
Sqaure root of 9 is 3, a rational number
Giving brainliest!!!!!!!!!!
Answer:
A
Step-by-step explanation:
The line plot is obviously symmetric because if you fold it, you would get a perfect fold. It is not bell shaped because, well, it's not in the shape of a bell. It just creates a straight line of points. This just makes option A the only logical answer.
Best of Luck!
Please Help!!
The equation and the tables represent two different functions. Use the equation and the table to answer the questions. This table represents C as a function of A.
Your first answer is correct, the 2nd one is wrong though. If you look at the table when c is 21 a is 5. The next one is 15 because if you plug 5 in the equation you get 15. Not sure about the third question I think c is right though. For the last one -3 is incorrect and should be 0, 12 is fine and 10 should be 5.
The telephone company offers two billing plans for local calls. Plan 1 charges $29 per month for unlimited calls and Plan 2 charges $19 per month plus $0.05 per call.
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.
b. Explain the meaning of the answer to part a.
Answer:
Step-by-step explanation:
wouldn't you do 29 x 19=551+0.05=551.05
Answer:
The number of monthly calls for which Plan 1 is more economical than Plan 2 is 200 calls If more than 200 calls are made, the plan 1 charge will be more than plan 2. Let the number of charges per month be x If plan 2 charges $16 per month plus $0.04 per call, this is expressed as 0.04x + 16 Price that pan 1 charges = $24 If Plan 1 is more economical than Plan 2, this is expressed as:0.04x + 16 > 24 Subtract 16 from both sides:0.04x + 16 - 16 > 24 - 16 0.04x > 8 x = 6/0.04 x = 200 This shows that if more than 200 calls are made, the plan 1 charge will be more than plan 2.
Find the surface area of the prism or pyramid. Round to the nearest whole number if necessary.
What is the answer totally forgot how to do this HELP!
Answer:
C
Step-by-step explanation:
Easy
just kinda do it
A=11mm
B=4mm
C=8mm
D=8mm
I'm not sure how you spell it, but it's the abbreviation for the Socials, the jet set, the West-side rich kids. It's like the term "greaser," which is used to class all us boys on the East Side.
Which sentence best states the theme of this excerpt?
Neighborhoods are usually divided by social classes.
Some people judge others based on appearances.
All teens experience similar events in life.
People are sometimes labeled by where they live.
Answer:
I think it may be B
Step-by-step explanation:
What is the area of a square with a perimeter of 55 cm
Answer:
Step-by-step explanation:
A= 189.06cm2
Answer:
Step-by-step explanation:
189.06cm2