Lateena solved the equation below. Is her solution correct? Explain why or why not?
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Answer:
No
Step-by-step explanation:
she should have just factored x² - 6x - 7 = 0
(x + 1)(x - 7) = 0
x = -1, x = 7
Related Questions
HELP! I HAVE NO IDEA HOW TO DO IT <3
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Answer:
TY
Step-by-step explanation:
Nice
Thanks for the free Poi nts!
The formula to find the zero of linear polynomial in the form of y=ax+b is
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Answer:
X = - b / a
Step-by-step explanation:
A westbound train travels 16 miles per hour slower than the eastbound train. If two trains are 800 miles apart after 5 hours what is the rate of the westbound train?
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Answer:
6
Step-by-step explanation:
The rate can be calculated as follows
x + x -16
2x-16
(2x-16)×5
10x - 80= 800
10x = 300-80
10x, = 220
x = 220/10
= 22
22-16
= 6 mph
Hence the rate of the west bound tsin is 6mph
What number am I? All of my digits are even. My tens digit is equal to two more than my hundreds digit. My ones digit is equal to two more than my tens digit.
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Answer:
246 or 468.
Step-by-step explanation:
The only possible even digits are 2, 4, 6, and 8 (0 is neither even nor odd).
Therefore, your possible numbers are 246 and 468.
You go completely unprepared for a multiple choice quiz. The quiz has five questions, each with four answer choices. Describe a simulation that you could use to determine the experimental probability of guessing all five questions correctly.
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Answer: I feel d.u.m.b. when there's a genius here
Most likely your gonna fail
Average 50-75 range
Step-by-step explanation:
Mostly luck in this percentage thou
Thats common sense
Answer:
Step-by-step explanation:
Computer languages love this kind of question. You could run it a million times and the computer would bring back an answer in under 10 seconds.
Let us suppose that 4 is the correct answer for all 5 questions.
Run the simulation 1000000 times. There is only 1 answer that is acceptable
select a random number from 1 to 4
do this 5 times
If all five random numbers are 4 then add 1 to counter which keeps track of the number of times 4 was chosen 5 times (it will be pretty small).
End by displaying the number of times 4 was chosen 5 times
Divide by 1 million.
In running the simulation, I described using Delphi it ran the simulation in under 1 second. That is, took the test 1 million times.
I'm going to save this answer and if I can edit the question I'll tell you what I got. If not, I suppose I could put it in a comment.
The experimental answer I got was 993 which is awfully close to 1/1000 which is approximately the theoretical answer. So my simulation that I described will work really well.
The theoretical answer is
1/4 * 1/4 * 1/4 * 1/4 *1/4 = 1 / 1024 So actually 1/1000 (which my simulation nearly got) is really kind of close.
There are other ways of doing this simulation.
The triangle below has a perimeter of 20. Solve for x
Answers
Answer:
x = 5
Step-by-step explanation:
Given that,
First side of a triangle = x+2
The second side of a triangle = 8
The third side of a triangle = x
We know that, perimeter is equal to the sum of all sides. So,
x+2+x+8 = 20
2x+10 = 20
2x = 10
x = 5
Hence, the value of x is equal to 5.
A recipe for trail mix is shown below. 1 1/4 cups granola • 1/2 cup peanuts 1 / 4 cup raisins •1/8 cup chocolate chips Darnell wants to make of the recipe. How much granola, in cups, should he use?
PLEASE HELP ME ASAP YOU GET 10 POINTS FOR THE ONE WHO HELPS ME FIRST
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Answer:
0.875 or 7/8
Step-by-step explanation:
you divide 1/2, 1/4, 1/8 into their decimal form and you add them all up into 0.875 and you turn it into its fraction form and get 7/8
PLEASE HELP SURFACE AREA TRIANGULAR
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Answer:
Step-by-step explanation:
i attached some screen shots that have the formula and the answer lol. I hope these answer your questions!
Find the area of the shaded sector. Blue Cross.
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Step by step explication:
4(4)+4(4)+4(4)+4(4)= 64 cm^2
please help i need to turn it in
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Answer:
978 in
Step-by-step explanation:
(9x6)+(18x18)+(25x24)=978
Answer:
978
Step-by-step explanation:
Make into 3 smaller rectangles and add the area
Are the 2 triangles congruent? *
2 points
e) Yes or No
REASON:
A
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Answer:
no
Step-by-step explanation:
because they are struggling with their identity
convert 0.0008 as a fraction in its simplest form
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help i’m confused♀️ kinda forgot what a inequality is over quarantine lol
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Answer:
t ≤ 10
Step-by-step explanation:
To solve the inequality, simplify it.
-3t + 9 ≥ -21
Subtract 9 from both sides.
-3t ≥ -30
Divide by -3. When dividing by a negative, flip the inequality sign.
The answer is C, t ≤ 10.
Which shows [tex]4^{6}[/tex]÷[tex]4^{5}[/tex] in standard form?
A. 0
B. 1
C. 4
D.16
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The
Answer:
is
Step-by-step explanation:
C. 4
Exponents first
Write an inequality to represent the real-world problem. Then complete the statements.
Jasmine’s computer cost more than $300.
The variable in the inequality represents
The inequality symbol needed is
The constant is
The inequality that correctly represents the problem is
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Answer:Just did the question 2021 edge
Step-by-step explanation:
Write the equation of a circle with a center of (1,-2) and radius of 4.
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Answer:
(x - 1)^2 + (y + 2)^2 = 4^2
Step-by-step explanation:
The standard equation of a circle of radius r with center at (h, k) is
(x - h)^2 + (y - k)^2 = r^2
Replacing h with 1, y with -2 and r with 4, we get:
(x - 1)^2 + (y + 2)^2 = 4^2
What is 2x times 3x............................
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Answer:
What is 2x times 3x
6x
Step-by-step explanation:
3•2=6
What is the absolute maximum or minimum of f(x) = 3x^2-5x-9
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Answer:
Absolute minimum / vertex = (5/6,-133/12)
Step-by-step explanation:
Since a is positive, then the absolute maximum is ∞. The absolute minimum would be the vertex of the parabola, meaning x=-b/2a=-(-5)/2(3)=5/6, and y=3(5/6)^2-5(5/6)-9 = -133/12. Therefore, your absolute minimum / vertex is (5/6,-133/12)
HELP ASAP!!! No links please!! Add explanation! And I will give brainliest to whoever answers first!!!
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Area: ½ x (sum of the lengths of the parallel sides) x perpendicular distance between parallel sides
Area = 1/2( 8 + 14) 5 = 1/2× 22 × 5 = 55 ft^2
PLEASE HELP 20+ POINTS!!!! VERY VERY IMPORTANT
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Answer:C
Step-by-step explanation:30 percent of 7500 is 5250
HELP!!! answer quickly pls
Answers
Answer:
the first option
Step-by-step explanation:
hope it helps!!!
Answer:
it is y=2x+5 because replacing a point such as (-2;1) the remaining equation is 1=1, which is right
Step-by-step explanation:
Select all the correlation coefficients that represent a linear model with a weak correlation .
A. -0.982
B. -0.618
C. -0.103
D. 0.204
E. 0.907
F. 1
Answers
Answer:
C) -0.103 and D) 0.204
Step-by-step explanation:
A linear model with a weak correlation is gonna have an r value closest to 0, whether it be negative or positive. C and D seem to be the best choice as they're closest to 0.
Please answer I really need help due at 11:50
Answers
Answer:
|-3| = 3
|3| = 3
Step-by-step explanation:
Find the area of the trapezoid.
Answers
Answer:
78 ft squared
Step-by-step explanation:
To find the area of trapezoid, we could use this formula:
.5*height*(sum of bases)
We know both the base lengths. They are 10 and 16 ft.
The height can be found by looking at that right triangle whose base is (16-10) ft or 6 ft.
So we want to find the height which is opposite the 45 degree angle and we have the adjacent side's measurement of 6ft.
This has the tangent ratio written all over it since tangent of an angle is opposite side's measurement over adjacent side's measurement.
tan(45)=height/6
1=height/6
6=height
6ft=height
The answer is:
.5*height*(sum of bases)
.5*6 ft*(10 ft+16 ft)
3 ft(26 ft)
78 ft squared
Note: That one right triangle is an isosceles right triangle so we didn't need trigonometry.
Arjay records the number of chirps per minute (x) that crickets make at
different temperatures (™) in degrees Fahrenheit.
He determines that the association is linear and that the line of best fit is
y= *x + 40
What is the interpretation of the slope and y-intercept of this equation?
Temperature (°F)
90
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45
Chirps per minute
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Answer: B
Step-by-step explanation:
PLEASE ANSWER ILL TRY AND MARK BRAINKIEST IF YOH GIVE ME CORRECT ANDWER
Answers
Answer:
option 3
Step-by-step explanation:
What is the slope of the line represented by -3x + 5y = 20 ?
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someone help please :(
Answers
Answer:
D
Step-by-step explanation:
Given f(x) then f(x + a) is a horizontal translation of f(x)
• If a > 0 then a shift left of a units
• If a < 0 then a shift right of a units
Then
g(x + 3)² is the graph of f(x) translated 3 units left
Given f(x) then f(x) + c is a vertical translation of f(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Then
g(x) = g(x + 3)² - 7 is the graph of f(x)
Translated 3 units left and 7 units down
= Simplify the following algebraic expressions given below into their equivalent standard forms.
(x + 10)(x + 10)
Answers
Answer:
https://tex.z-dn.net/?f=(x%2B10)%5E%7B2%7D%20
Step-by-step explanation:
A trapezoid has a height of 6 inches, an area of 120 square inches, and one base measuring 13 inches. Find the length of the other base.
Answers
Answer:
27
Step-by-step explanation:
Givens
b1 = 13
b2 = ?
h = 6
Area = 120
Formula
Area = (b1 + b2) * h/2 Multiply by 2
2Area = (b1 + b2)*h Divide by h
2Area/h = b1 + b2 Subtract b1 from both sides
2Area/h - b1 = b2
Solution
2*120 / 6 - 13 = b2
40 - 13 = b2
b2 = 27
It is always handy to solve an equation in the form that finds the unknown on one side. It makes the solution much easier.