Answers
Answer:
Its B.
Step-by-step explanation:
(7-5)² = x²
2² = x²
x² = 2²
x = ±2
x = -2
x = 2
x1 = -2
x2 = 2
Related Questions
When given a system of equations in slope-intercept form, is graphing or substitution the most efficient method to solve? Explain.
Choose the best answer below.
A.
Substitution is the only method that should be used if the answer involves integer values. If the answer involves values that are not integers, graphing would be more efficient because an exact answer can be obtained. It is easier to read graphs when the point of intersection does not occur at integer values.
B.
Graphing is the only method that would be appropriate to use here because it is not possible to use the substitution method if both equations are in slope-intercept form.
C.
Substitution is the only method that would be appropriate to use here because it is not possible to use the graphing method if both equations are in slope-intercept form.
D.
Graphing and substitution are appropriate to use if the answer involves integer values. If the answer involves values that are not integers, substitution would be more efficient because an exact answer can be obtained. It can be difficult to read graphs if the intersection point does not have integer values so this would be an inefficient method to solve with.
PLEASE HELPPPPP
Answers
A system of equations in slope-intercept form can be solved by,
D. Graphing and substitution are appropriate to use if the answer involves integer values. If the answer involves values that are not integers, the substitution would be more efficient because an exact answer can be obtained. It can be difficult to read graphs if the intersection point does not have integer values so this would be an inefficient method to solve with.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, a system of equations in slope-intercept form y₁ = m₁x₁ + b₁ and
y₂ = m₂x₂ + b₂.
We can use both substitution and graphing depending on the numerical values of the variables.
If the solution involves integer numbers, graphing and substitution are the proper methods to utilize. Substitution would be more effective since an accurate solution may be reached if the solution involves values that are not integers. If the intersection point doesn't have integer values, it can be challenging to understand graphs, so using this approach to solve would be ineffective.
learn more about lines and slopes here :
https://brainly.com/question/3605446
#SPJ2
how do you use models to add and subtract fractions that have different denominators?
Answers
Answer:
the langth
Step-by-step explanation:
Is 3 3/4 in its simplest form?
Please put its simplest form if it has a simplest form
Answers
Answer:
that is the simplist form 3 3/34
Step-by-step explanation:
How do you finish this math equation?
3≤7+g
g≥ ?
Answers
Answer:-4
Step-by-step explanation:
Answer:
3 ≤ 7 + g
7 + g ≥ 3
g ≥ 3 - 7
g ≥ -4
I really need help with this, please help
Answers
It’s the same angle degrees
Questions are in file/pictures!
(as you can see all my questions are from math lol)
Answers
Answer:20
Step-by-step explanation: I'm good at math and i know the answers
what measurement is equal to 3,000 meters
Answers
Answer:
A distance of 3,000 meters is approximately 1.86 miles or 3 kilometers.
Step-by-step explanation:
hope it HELPPS
Answer:
1.86 miles or 3 kilometers.
MATH SMARTIES I WILL GIVE BRAINLIEST THIS IS AREA OF THE COMPOSITE FIGURES. DIRECTIONS-NAME THE SHAPES GIVE THE SHAPES THERE FORMULA FIND THERE AREA THEN SUBTRACT THE ANSWERES YOU GOT FROM THE AREAS AND THAT SHOULD ANSWER MY QUESTION
Answers
Answer:
rectangle triangle trapezium
Step-by-step explanation:
rectangle =length×width(12×7=84)
triangle=1/2base×height(1/2×8×7=28)
trapezium=1/2sum of parallel lines ×height(1/2×(6+2)×7=28)
area of the rectangle subtract area of two trapeziums. (84-{28×2}=28)
(copy nd paste)
Sue and Cathy have $20 left for a cab fare home. The cab fare is $3 per mile plus a $2 fixed charge. What is the maximum number of miles they will be able to travel in the cab?
Answers
Answer:
6 miles
Step-by-step explanation:
if u dont mind givin me brainliest im just trying to rank up
5z + 2 = 3z - 10
Show your work and I will give you brainlist
Answers
Answer:
z = -6
Step-by-step explanation:
5z + 2 = 3z - 10
Subtract 3z from both sides
2z + 2 = -10
Subtract 2 from both sides
2z = -12
Divide each side by 2
z = -6
So, the answer is z = -6
Select the correct answer from each drop-down menu.
A sports apparel company surveyed the market about the size of T-shirts people most frequently buy, small, medium, large, or extra-large. The
table shows the survey results.
T-Shirt Size Number of responses
small
11
mediurn
37
large
83
extra-large
19
To help Its sales, the company should focus on producing size
T-shirts. Approximately % of T-shirts the company
makes should be medium and large T-shirts to match the market preference. If the total number of T-shirts sold in a month is 45,000,
of these will likely be size small.
Answers
Answer:
To help Its sales, the company should focus on producing Large
T-shirts. Approximately 80% of T-shirts the company
makes should be medium and large T-shirts to match the market preference. If the total number of T-shirts sold in a month is 45,000, 3,300
of these will likely be size small.
Step-by-step explanation:
In the survey, Large t-shirts are most frequently bought so they should be the primary focus if the company is trying to make more money.
To find the percentage of shirts that the medium and large shirts make up, first you find the total amount of shirts (11+37+83+19=150), then you will find how many mediuma and large shirts (37+83=120). Percentage is (120/150)*100=80%
To find the number of small shirts you can set up a proportion.
[tex]\frac{11}{150} =\frac{x}{45,000}[/tex], then cross multiply
150x=11*45,000
150x=495,000
x=3,300
Jada is 13 5/6
years old. Sheila is 1 1/3
years older than Jada and Jane is 1 1/4
years older than Sheila. How old is Jane?
Answers
Answer:
16 5/12 years old
Step-by-step explanation:
Just add them all together. You need to find the LCD for them to do that.
Hope this helps!
PLEASE NEED HELP ASAP
If 120% of a is equal to 80% of b, then what is the value of a+b in terms of a and b?
Answers
80% of b
120% = 120/100 =1.2
80%= 80/100 = 0.8
1.2a=0.8b | ÷1.2
1a = 2/3 b
1.2a=0.8b | ÷0.8
1b=1.5a
(a+b) = ((2/3b)+ (1.5a)) =2/3b + 1.5a
*not 100% sure
Answer:
120/100 a = 80/100 b
12/10 a = 8/10 b
10 (12/10) a = 10 (8/10) b
12a= 8b
3a= 2b
a+b in terms of a
b = 3/2×a
a+ 3/2×a = 5/2×a
a+b in terms of b
a = 2/3×b
b + 2/3.b = 5/3×b
Factor by grouping: x^3+2x^2−6x−12. Which of the following is one of the factors?
A) (x^2−6x)
B) (x^2−6)
C) (x^2+2)
D) (x−2)
Answers
x³+2x²-6x-12=x²•(x+2)-6(x+2)=(x+2)•(x²-6)
Solve for c: c - 10 + 3c < 2
Answers
c -10 + 3c > 2
combine like terms
4c -10 > 2
+10 +10
4c > 12
divide both by 4
c > 3
LAST ONE! PLEASE HELP ITS THE FINAL QUESTIONS FOR ME TO FINISH THIS DEATH TRAP
Answers
Find three consecutive odd numbers whose sum is 81. *
Answers
pppppppplllllllzzzzzz
Answers
Answer:
a. 12÷72= 0.16≈ 0.2
b. 0.2 × 18= 3.6≈ 4
B is 4
Hole this helps
Can someone help me with these questions
Answers
Answer: you got this try your best
Step-by-step explanation:
(the answers to questions 9 and 10 are in the picture)
If you bought 12 cookies (each cookie for 0.99) how much more would each cookie cost than if you bought them by the dozen? ( A dozen pack is for 6.55)
Answers
Mai started a new exercise program. On the second day, she walked 5 minutes more than on the first day. On the third day, she increased her walking time from day 2 by 20% and walked for 42 minutes. Mai drew a diagram to show her progress.
Answers
Answer:
d = 30 minutes.
day one is equal to 30 minutes
day two is equal to 35 minutes
day three is equal to 42 minutes
Explanation:
The first step is to figure out how much day 2 was worth in total.
Using the model, we can see that 5 of the boxes from day three is equal to day 2.
42/6=7.
One of the boxes equals 7 minutes.
Next we find what all 5 of them equal.
7*5=35.
Day two was worth 35 minutes in total.
The next step is to figure out what d equals. In order to do that, we need to solve the equation:
d + 5 = 35.
subtract 5 from both sides.
d = 30.
Now we know that day one/D is equal to 30 minutes.
Day one: 30 minutes
Day two: 35 minutes
Day three: 42 minutes.
Hope that this is what your looking for. Have a good day and good luck!
D = 30 minutes
what is thissssssss????? pls help
Answers
1/2 + 1/3 + 6/8 = ???
Answers
Answer:
1/2 + 1/3 + 6/8 = 19/12
Step-by-step explanation:
Find the surface area of each prism.
Answers
Answer:
105.84 cm²
129 ft²
Step-by-step explanation:
please mark me as brainliest
PLEASE HELP WITH THESE !!
ILL TRY TO MARK BRAINLIEST !!
Answers
Answer: 1. 32x37.21 =1192
2. 120
3. 12
4. 24
Step-by-step explanation:
2. 894
3. 12
4. 24
I would really appreciate some help!
The graph shows the distance, y, that a car traveled in x hours:
Select one:
a. fraction 1 over 50
b. fraction 1 over 25
c. 25
d. 50
Answers
Answer:
C.25
Step-by-step explanation:
In 1 Hour, The car will be able to travel 25 Miles. Hope it Helps!
Answer:
c) 25
Step-by-step explanation:
( 1, 25) and (2, 50)
m= (y2-y1)/(x2-x1)
m= (50-25)/(2-1)
m=(25)/(1)
m=25
what is 21 divided by 3 + (8 -2 +2)
Answers
Answer:
15
Step-by-step explanation:
21/3+(8-2+2)
PEMDAS
In the parentheses, we can easily learn that the minus two plus two cancels each other out.
21/3+8
7+8
15
If anything is confusing, let me know and I'll explain it more.
an angle measure 23 degrees more than the measure of its complementary angle . what is the measure
Answers
Answer:
67 degrees or 113 degrees.
Step-by-step explanation:
The other angle is 67 degrees because a complementary angle adds up to 90 degrees. It could also be 113 because that is 23 degrees more than a complementary angle.
The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right angles.
What is the area, in square feet, of the shaded region?
What is the area, in square feet, of the non-shaded region?
Answers
Answer:
Step-by-step explanatioihhin:
which of the following is not a solution for finding the perimeter of the square? 2y+2