Is this correct? If not whats the correct answer
Tyra solved the quadratic equation x2-10x -24 = 0by factoring. Her work is shown below:
Step 1: x2-10x -24 = 0
Step 2: x2-4x - 6x - 24 = 0
Step 3: (x2-4x) + (-6x - 24) = 0
Step 4: x(x-4) - 6(x - 4)=0
Step 5: (x-4)(x-6)=0
Step 6: x-4 = 0, x-6 = 0
Step 7: x=4 or x = 6
Step 8: 4, 6
Tyra did not find the correct solutions. Investigate the steps, decipher her mistakes, and explain how to correct Tyra’s work.
Answer:
Step 5 was not correct
Step-by-step explanation:
Tyra cannot take x and 6 common and then remove those valuse.
In 10^3(exponent), 10 is the base, and 3 is the exponent. That means 10 will appear as a factor 3 times: 10 · 10 · 10. 10^3(exponent) = 1000.
In 2^7, how many times will 2 appear as a factor?
A
2
B
14
C
7
D
9
Simplify (Write without absolute value sign)
ex) ║120 +x║, if x < -120
answer would be: -120 -x
My problems:
1. ║x-120║, if x<-120
2. ║x-(-12)║, if x > -12
3. ║x-(-12)║, if x < -12
4. ║x-(-12)║, if x = -12
5. ║x ÷ 3║, if x > 0
6. ║x ÷ 3║, if x < 0
7. ║x ÷ 3║, if x = 0
**WILL GIVE BRAINLIEST IF 4 OR MORE ARE CORRECT**
Answer:
-(x-120)
x-(-12)
-(x-(-12))
0
x / 3
-(x/3)
0
Step-by-step explanation:
1. || x-120||, if x<-120.
If x is less than -120, then x - 120 will be a negative number.
Since absolute value will make a negative number positive, the answer will be -(x-120).
2. ||x-(-12)||, if x > -12.
Basically x -(-12) = x + 12. If x is greater than -12, then ||x+12|| will be positive. The answer is x-(-12).
3. ||x-(-12)||, if x < -12.
Again, x-(-12) = x + 12. If x is less than -12, ||x+12|| will be negative.
Absolute value makes a negative number positive. The answer is -(x-(-12)).
4. ||x-(-12)||, if x = -12.
So we can substitute x with -12. ||-12-(-12)|| = ||-12+12||, which equals ||0||, which is also just 0. (Answer is 0.)
5. ||x / 3||, if x > 0.
Any positive number divided by another positive number will be positive, meaning you can just take out the absolute value sign. Answer is x /3.
6. ||x / 3||, if x < 0.
Any number less than 0 is negative, and any negative number divided by a positive number will be negative. If we take out the absolute value, we'll have to reverse it with a -. Answer: -(x/3).
7. ||x / 3||, if x = 0.
||0/3|| = ||0||, which is still 0.
Hope this helps!
I need this immediately
What's the answer to this please help. :)
I WILL GUVE BRAINLIEST!!!
Answer:
[tex]31.73\ in^2[/tex]
Step-by-step explanation:
1. Approach
The easiest way to solve this problem is to find the area of the triangle and the area of the inscribed circle. Then subtract the area of the inscribed circle from the area of the triangle.
2. Find the area of the triangle,
The area of the triangle can be found using the following formula,
[tex]A_t=\frac{b*h}{2}[/tex]
Where (b) represents the base of the triangle, and (h) represents the height.
Substitute in the given values and solve,
[tex]A_t=\frac{b*h}{2}\\\\A_t=\frac{12*10}{2}\\\\A_t=\frac{120}{2}\\\\A_t=60[/tex]
3. Find the area of the inscribed circle,
The formula to find the area of a circle is the following,
[tex]A_c=(pi)r^2[/tex]
Where (pi) represents the numerical value (3.1415...) and (r) represents the radius of the circle. By its definition, the radius of a circle is always half of the diameter, thus the radius of the given circle is (3).
Substitute in the given values and solve,
[tex]A_c=(pi)r^2\\\\A_c=(pi)(3)^2\\\\A_c=(pi)9\\\\A_c=28.26[/tex]
4. Find the area of the shaded region,
To accomplish this task, subtract the area of the circle from the area of the triangle,
[tex]A_t-A_c=A_s[/tex]
[tex]60-28.26=A_s[/tex]
[tex]31.73=A_s[/tex]
PLS HELP ILL GIVE BRAINLIEST!
Answer:
B
Step-by-step explanation:
-the base angles are 34, so the total value of both base angles is 68
-an isosceles triangle is equal to 180
-subtract 68 from 180 for the answer, so the equation is 68+x=180
hope this helps, comment in you have a question :)
Answer:
i think its b
Step-by-step explanation:
Ill give brainliest
Principal 10,000
Rate %3
How many years until the interest reaches $12,700
Answer choices:
A. 7 years B. 12 years
C. 9 years D. 22 years
B) Jillian won the game because the person with the lower mean took fewer putts on average for each hole
Answer:
golf
Step-by-step explanation:
Answer:
?
Step-by-step explanation:
are you trying to answer
Philip made $1,155 in 15 days. Let “m” represent the amount of money that Philp made each day. If Philip made the same amount of money each day, how much did he make in one day.
Please Help I Will Give 5 Stars
The Empire State Building is just over 1,450 feet tall. In anticipation of visiting this landmark on your vacation, you create a model of it using blocks. (I only need the scale factors)
1) Suppose you are making a model where one block represents 2 feet. About how many blocks tall is your model of the Empire State Building? What is the scale factor?
2) Suppose you are making a model where one block represents 5 feet. About how many blocks tall is your model of the Empire State Building? What is the scale factor?
Answer:
he is right up their
Step-by-step explanation:
42- _____ = 31
with explanation plz
Answer:11
Step-by-step explanation:11 bc 42-11=31
Answer:
11
Step-by-step explanation:
To figure this out you just need to to do 42 - 31
Find the value of h in the following figure.
Answer:
h = 40°
Step-by-step explanation:
h = 180° - 140° = 40°
Pls answer will mark brainliest to correct answer
Answer: 85ft
Step-by-step explanation:
if the friend is on ground levle, then just add 35ft and 50 ft.
whaaa? Pirmavera, you know i don't know this, bros
im not good with this. also letters should have never been added to math.
Answer:
153
Step-by-step explanation:
Answer: and explanation
multiply both sides of the equation by 3 to get:
3V = Bh then divide both sides by h
h=3v/B
Two lines, A and B, are represented by equations given below: Line A: y = x − 4 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why? (1 point) a (−3, −5), because the point satisfies one of the equations b (−3, −5), because the point lies between the two axes c (−4, −8), because the point satisfies both equations d (−4, −8), because the point does not lie on any axis
Answer:
The answer is "C"
Step-by-step explanation:
Answer:
Answer C. This point lies between the two axes and its coordinates satisfy both equations
Step-by-step explanation:
Line A: y = x − 4
Line B: y = 3x + 4
Let's actually solve this system, using substitution: Equate
Line A: y = x − 4 to Line B: y = 3x + 4, obtaining:
x − 4 = 3x + 4
Subtract (x - 4) from both sides. Doing so yields
0 = 2x + 8, and so x = -4.
From Line A let's find y: Letting x = -4, we get: y = -4 - 4 = -8
and so the solution is (-4, -8). This matches Answer C. This point lies between the two axes and its coordinates satisfy both equations.
The front panel of a cereal box has an area of 97 square inches. W The box has a total volume of 169.75 cubic inches. Which equation represents , the width of the box in inches?
Answer:
1.75
Step-by-step explanation:
97*1.5=169.75
Kyle bought a DVD that cost $19.23, including tax. She gave the sales clerk a $20 bill. How much change should Kyle receive?
Answer: Kyle received $0.77
Step-by-step explanation:
ok last one help meee
PLS HELP!
A slice is made parallel to the base of a right rectangular pyramid, as shown.
What is the area of the resulting two-dimensional cross-section?
Enter your answer in the box.
____cm²
Answer:
i think its 60cm and i actually solve it XD
Can someone plz help, I got some of it but not all
Answer:
Its 6x8+9 so its 7
Step-by-step explanation:
So bscily you divide 8 by 4 its 2 and 2x3 is 6+1=7 there you go buddy
Answer:
(section a)
LMN~JKH
(section d)
[tex]\frac{LN}{ML} =\frac{JH}{KJ} \\[/tex]
[tex]\frac{KH}{JH} =\frac{MN}{LN}[/tex]
help I cant remember what is A slope
Answer: A slope is basically basically a number that describes the steepness and direction of the line.
To solve for a slope of the line, it is simply rise/run
RISE = How much did the line go up
RUN = How much did the line go in a horizontal fashion
Simplify: 18(5)
A. 95
B. 90
C. −90
D. −95
Answer:
i think that the answer might be B
When you translate(x , y + 6) the figure will move _____.
6 units right
6 units left
6 units up
6 units down
forty yards of fabric are used to make 9 school banners. how many yards of fabric does banner use? between what 2 whole numbers does that answer lie?
Answer:
4 4/9,4 and 5
Step-by-step explanation:
y − 16 =
plzzz helpppp
Segment ME has a length of 13 inches and is rotated 270∘ counterclockwise about the origin to segment M′E′.
What is the length of segment M′E′?
Answer
90
Step-by-step explanation:
Divide 270 degrees by 3
I know that bc I had the same question on khan academy
Answer:
90
Step-by-step explanation: