50 POINTS! false answers will be reported and u wont get points
Can a solution to this equation be 3, because then both sides would have divide by 0?
Answer:
Step-by-step explanation:
If we multiply x - 7 by x - 3, we get x^2 - 10x + 21. This shows that the LCD is x^2 - 10x + 21, or (x - 7)(x - 3). Let's convert each of the two fractions on the right to their equivalents, with the LCD in the denominator.
Multiplying both the numerator and the denominator of 6/(x - 7) by (x - 3), we get 6(x - 3) over x^2 - 10x + 21, which is the LCD.
Similarly, we get 5(x - 7) over x^2 - 10x + 21.
Now all three of the original fractions have the same denominator, x^2 - 10x + 21. We can now "drop" the LCD, which leaves us with:
x^2 - 29 = 6(x - 3) + 5(x - 7)
Performing the indicated multiplications, we get:
x^2 - 29 = 6x - 18 + 5x - 35. Combining like terms:
x^2 - 29 = 11x - 53, or x^2 - 11x + 24 = 0
This factors as follows: x^2 - 11x + 24 = 0 = (x - 3)(X - 8) = 0
Then the preliminary solutions are x = 3 and x = 8. Unfortunately, we cannot substitute x = 3 into the original equation, because that would lead to division by zero. The only valid solution is x = 8, since every term of the original equation is defined at x = 8, and the equation is true for this value.
Repeat: 3 cannot be a solution because the 3rd fraction is undefined at
x = 3. So we have only one valid solution (8) with no other solution to multiply by 8.
Answer: You may divide by a variable. But only if you know the variable is non-zero. So, if setting the variable to zero makes both sides of the equation zero, we have a solution that that variable is 0, or the equation with the variable divided out holds. E.g. solve x(x-1) = 0.
someone pls help! mathematics.
bot answers/nonsense = reported
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The formula for any geometric sequence is an = a1 · rn - 1 , where an represents the value of the n th term, a1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the geometric sequence 4, 8, 16, 32, ...?
an = 4 · ( ) n - 1
an = 2 · 4 n - 1
an = 32 · 2 n - 1
an = 4 · 2 n - 1
Answer:
a(n) = 4*(2)^(n - 1)
Step-by-step explanation:
The correct version of this formula is a(n) = a(1)*r^(n - 1). Must use the " ^ " symbol to indicate exponentiation, and enclose the "n - 1" inside parentheses.
Here, if 4, 8, 16, 32, ..., then a(1) = 4 and r = 2 (e. g., 16/8 = 2, 32/2 = 16, and so on).
Then the correct formula for this geometric sequence is
a(n) = 4*(2)^(n - 1), where use of the parentheses as indicated is mandatory.
Answer:
a(n) = 4*(2)^(n - 1)
Step-by-step explanation:
The correct version of this formula is a(n) = a(1)*r^(n - 1). Must use the " ^ " symbol to indicate exponentiation, and enclose the "n - 1" inside parentheses.
Here, if 4, 8, 16, 32, ..., then a(1) = 4 and r = 2 (e. g., 16/8 = 2, 32/2 = 16, and so on).
Then the correct formula for this geometric sequence is
a(n) = 4*(2)^(n - 1), where use of the parentheses as indicated is mandatory.
Our basketball team won 60 per cent of their games. If they lost 8 games, how many
games did they play altogether?
O 10
O 12
O 16
O 20
o none of these
What steps do you need to take to solve the equation 2x+6= 18?
Choose the correct answer below.
A. Subtract 6. Then, multiply by 2.
B. Subtract 6. Then, divide by 2.
C. Add 6. Then, divide by 2.
D. Add 6. Then, multiply by 2.
Answer:
B subtract 6 then divide by 2
Answer:
B. Subtract 6. Then, divide by 2.
Step-by-step explanation:
2x + 6 = 18
Subtract 6 from both sides.
2x = 12
Divide both sides by 2.
x = 6
Answer: B. Subtract 6. Then, divide by 2.
angle sum theory
A)105°
B)97°
C)106°
D)100°
PLZ HELP ILL GIVE U BRAINLIEST
True or false: Every sequence is either arithmetic or geometric. If this is true, explain. If false, give a counterexample to illustrate.
Answer:
No false
Step-by-step explanation:
Theres the fibonacci sequance 1,1,2,3,5,8...
I need help ASAP please help me I’ll give Brainliest
Answer:
Step-by-step explanation:
A and C are equivalent.
6d+6=2(3d+3)
6d+6=3d+3+3d+3=(3d+3)+(3d+3)
Answer:
A and C
Step-by-step explanation:
Given
4d + 6 + 2d ← collect like terms
= 6d + 6
Comparing the following
A
2(3d + 3) ← distribute parenthesis by 2
= 6d + 6
B
6(d + 6) ← distribute parenthesis by 6
= 6d + 36 ≠ 6d + 6
C
(3d + 3) + (3d + 3) ← remove parenthesis
= 3d + 3 + 3d + 3 ← collect like terms
= 6d + 6
Thus A and C are equivalent to the original expression
Emma has collected information about the cats and dogs that children in her class have as pets
there are 30 pupils total
find the number of children having both cats and dogs as pets
a.4
b.8
c.12
d.16
Answer:
c. 12
Step-by-step explanation:
the answer is c.12 due to the table
Help please I will give you the brainliest
Answer:
well option D will be your answer
Step-by-step explanation:
hope it helps you
have a great day
If f(x) = x3 + 4, then what is the remainder when f(x) is divided by x + 6?
Pls help
Edward has $20,000 in a savings account that earns 13% interest per year. The interest is not compounded.How much interest will he earn in 1 year?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
$
Answer:
22,600
Step-by-step explanation:
find the solution for the following equation using the algebraic method: 3x^2+10x=8
help plz im confused
Answer:
x = 16
Step-by-step explanation:
Δ ABC and Δ ADE are similar , thus the ratios of corresponding sides are equal, that is
[tex]\frac{AB}{AD}[/tex] = [tex]\frac{BC}{DE}[/tex] , substitute values
[tex]\frac{x}{x+6}[/tex] = [tex]\frac{8}{11}[/tex] ( cross- multiply )
11x = 8(x + 6)
11x = 8x + 48 ( subtract 8x from both sides )
3x = 48 ( divide both sides by 3 )
x = 16
The probability Bob guesses the winner of a certain baseball game is 4/5. The probability Joe independently guesses the winner of another game is 1/3. What is the probability that exactly one of them selects the winner? (Fraction answer)
SANA ALL SMART HAHAHAHHAAHHAHAAHA
which expression represents 2 more than the product 5 and 4.
A. (5+4)×2
B. (5×4)+2
C. 2+(5+4)
D.2×(5×4)
Answer:
i think it's B. (5 x 4) + 2
Step-by-step explanation:
pls give brainly crown
and if i'm wrong i'm sooooo sorry
Plzzz help I don’t understandddddd
Answer:
k = -10.5
Step-by-step explanation:
k + 7.5 = -13
Subtract 7.5 from both sides
k + 7.5 - 7.5 = -13 - 7.5
k = -20.5
Find the points of intersection of the circles.
Answer:
D. (5,0) and (5,10)
Step-by-step explanation:
Simplify (1+3)2-10÷2
what the solution?
Answer:
3
Step-by-step explanation:
(1+3)2-10÷2
1+3=4
4x2=8
10÷2=-5
8-5=3
Please help !!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:A-false B-false C-true D-true E-false
Step-by-step explanation:
if im wrong pls tell me :)
How do you graph a quadratic function?
Answer:
Step-by-step explanation:
Compare the equation with the standard form, y=ax2+bx+c . Since the value of a is positive, the parabola opens up.
So, y=0 implies, by the zero product property, x+4=0 or x−2=0 .
Substitute x=−1 in the equation y=−x2−2x+8 to find the y -coordinate of the vertex.
plz help fast (worth 15 pts) A prism and two nets are shown below:
Image of a right triangular prism and 2 nets. The triangle bases have base 4, height 3, and diagonal side 5. The length of the prism from the bases is 9.4. Net A has 3 rectangles in a row. The middle one has sides AC and CD. This middle one has triangle ABC on top and identical triangle below. Net B is the same except that the triangle base ABC is on top of the last rectangle which has sides AC and CD. Units are in inches.
Part A: Which is the correct net for the prism? Explain your answer. (2 points)
Part B: Write the measurements of Sides AB, BC, and CD of the correct net. (4 points)
Part C: What is the surface area of the prism? Show your work. (4 points)
Answer:
This is worth more than 15
Step-by-step explanation:
Image of a right triangular prism and 2 nets. The triangle bases have base 4, height 3, and diagonal side 5. The length of the prism from the bases is 8.6. Net A has 3 rectangles in a row. The middle one has sides AC and CD. This middle one has triangle ABC on top and identical triangle below. Net B is the same except that the triangle base ABC is on top of the last rectangle which has sides AC and CD. Units are in inches.
Step-by-step explanation:
What is the equation of the line –3x–2y=30 in slope-intercept form?
change the equation to : y = mx + b
Enter your answer in the box.
Answer:
y=-3/2x-15
Step-by-step explanation:
plz help
a diagram with line m parallel to line n is shown express the value of y in terms of x
Answer:
y = 170 - 3x
Step-by-step explanation:
l // m
y + 3x + 10 = 180 {co interior angles are supplementary}
y + 3x = 180 - 10 {Subtract 10 from both sides}
y+ 3x = 170 {Subtract 3x from both sides}
y = 170 - 3x
The low temperatures on New Year's Day in a city for 5 years are shown below.
2°F, -10°F, 7°F, 4°F, -13°F
Part A
What was the average low temperature on New Year's Day for the 5 years?
A. -2.5°F
C. 0.6°F
B. -2°F
D. 4°F
Part B
If, in the 6th year, the low temperature was 7°F, what was the average low temperature for the 6
years?
A. -0.5°F
C. 0.8°F
B. -0.2°F
D. 1.4°F
Answer:
Part A - B. -2F
Part B - A. -0.5F
Step-by-step explanation:
Part A. -
2 + -10 + 7 + 4 + -13 = -10
-10 / 5 = -2
Part B. -
-10 + 7 = -3
-3 / 6 = -0.5
On a coordinate plane, point A is 10 units up and 7 units to the right.
What are the coordinates of A?
Answer:
y=7x-10
Step-by-step explanation:
a would-be a y coordinate
Answer:
Y=7X-10
Step-by-step explanation:
Please help this is soo easy. I need it for my lil sis
Answer:
14
3/8 lb
1 1/4 lb
Step-by-step explanation:
Answer:
Packages of Meat altogether- 14
Total Weigh- 1 1/2
Round 7 to the nearest 10
Answer:
You can't round 7 to the nearest to 10, because there is nothing to round.
Step-by-step explanation:
Prism A is a triangular prism. The triangular base has a base of 7 meters and height of 9 meters. The prism has a height of 4 meters. Prism B is a rectangular prism with length of 8 meters, width of 2 meters, and height of 8 meters. Which prism has the least volume? Prism '
*see attachment for the diagram of the prisms
Answer:
Prism A
Step-by-step explanation:
✔️Volume of triangular prism (Prism A) = ½×bhl
b = 7 m
h = 9 m
l = 4 m
Volume of Prism A = ½ × 7 × 9 × 4
Volume of Prism A = 126 m³
✔️Volume of rectangular prism (Prism B) = L × W × H
L = 8 m
W = 2 m
H = 8 m
Volume of Prism B = 8 × 2 × 8 = 128 m³
✔️Prism A has the least volume
Answer:
Prism A has the least volume!
Step-by-step explanation:
I took the assignment on Edge and got it right. :)
How many halves are equivalent to 4/8
Answer:
2 : 2/4 and 1/4
Step-by-step explanation:
4/8 can be simplified to 2/4 and then 1/4