Answers
Answer:
If you just solve normally, you will get x=2 and x=-3. But if you plug these in to check your work, you will find that they are wrong. Your answer is no solution
Step-by-step explanation:
ln(2x+3)+ln(x-2)=ln(x^2-2x)
Rule: log(a) + log(b) = log(a*b)
ln( (2x+3)(x-2) ) = ln(x^2-2x)
Rule: If log(a) = log(b) then a = b
(2x+3)(x-2) = x^2 - 2x
2x^2-x-6=x^2-2x
x^2+x-6=0
Using Quadratic Formula:
x = 2 and x = -3
But, plugging these numbers back into the original equation is false!
Related Questions
What is the value of Point C on the number line below?
A) 0.208
B) 0.28
C) 0.302
D) 0.32
Answers
Answer:
0.28
Step-by-step explanation:
All you need to do is count.
0.20, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30
C
Point C sits on the point 0.28.
hurry!!!! I need help
Answers
Because A and B side angles equal.
So x+17°=67°
So when you find the x from the problem
x=67°-17°=50°
A biologist has two brine solutions, one containing 7% salt and another containing 28% salt. How many milliliters of each solution should she mix to obtain 1 L of a solution that contains 19.6% salt?
Answers
Answer:
Each litters can be represented as; x and y respectively to the 7% and the 28%
x + y =1
7x + 28y =19.6
This a simultaneous equation and can either be solved by using elimination or substitution method
Using the substitution method
eqn1, x=1-y
putting into eqn2
7(1-y)+28y =19.6
7-7y+28y=19.6
21y=12.6
y=3/5
but x=1-y
so
x=1-3/5
x=2/5
Triangle ABC below has a right angle C and a height CD. (A height in a triangle connects its vertex and the opposite side, and is perpendicular to that side.)
If AC is 3 units long and BC is 4 units long, what is the length of AD?
Answers
can you show the picture please?
Write a similarity statement comparing the three triangles in the diagram
P R S Q
Answers
Answer:
The answer is ΔJMK ≈ ΔMLK ≈ ΔJLM ⇒ answer (A)
Step-by-step explanation:
* Lets start with the equal angles i the three triangles
- In ΔJMK
∵ m∠JKM = 90°
∴ m∠KJM + m∠KMJ = 90 ⇒ (1)
- IN ΔMLK
∵ m∠MKL = 90°
∴ m∠KML + m∠KLM = 90° ⇒ (2)
∵ m∠KMJ + m∠KML = 90° ⇒ (3)
- From (1) , (2) , (3)
∴ m∠KJM = m∠KML
∴ m∠KMJ = m∠KLM
* Now lets check the condition of similarity in the 3 triangles
- At first ΔJMK and ΔMLK
- In triangles JMK , MLK
∵ m∠KJM = m∠KML
∵ m∠KMJ = m∠KLM
∵ m∠JKM = m∠MKL
∴ ΔJMK ≈ ΔMLK ⇒ (4)
- At second ΔJMK and ΔJLM
∵ m∠KJM = m∠MJL
∵ m∠KMJ = m∠MLJ
∵ m∠JKM = m∠JML
∴ ΔJMK ≈ ΔJLM ⇒ (5)
* If two triangles are similar to one triangle, then they are
similar to each other
- From (4) and(5)
∴ ΔJMK ≈ ΔMLK ≈ ΔJLM
what do you think???
Answers
Answer:
To entertain
Step-by-step explanation:
Because the dad made a joke to entertain, and the story is entertaining the readers.
Answer: entertain
Step-by-step explanation:
Part A
The prefix inter: means "between," and the word part cept means "to take." Based on
this information, what does the word interceptor mean as it is used in the passage?
"The interceptors covertly eavesdropped on Germany's radio messages, sending
them along to the team at Bletchley." (paragraph 6)
one who broadcasts radio messages to bring down his enemy
one who cannot decide between two sides, as in a war or argument
one who seizes something on its way from one place to another
one who takes part in cracking codes by means of a hidden key
Answers
Answer: B - one who cannot decide between two sides, as in war or argument
Step-by-step explanation:
Evaluate : ab−5c+b
for a = 12, b = 3 and c = - 4
Answers
Answer:
59
Step-by-step explanation:
[tex](12*3)-5*(-4)+3=59[/tex]
If you stacked the cubes on top of each other to make an enormous tower, how high would they reach?
Answers
Answer:
Is this an actual question
A recipe uses 6 tablespoons of butter for every 8 oz of cheese. the rate is __ tablespoons for every 1 oz. the raze is __ oz for every 1 tablespoon.
Answers
1/4 or .75
6 divided by 4 equal 1/4 or .75
You call 5 friends, tomorrow they call 5 each. Write an equation.
Answers
Answer:
5+5=10
Step-by-step explanation:
5+5=10
hope this helps. plz mark me as brainliest.
Which of the following inequalities has the graphed solution below?
zzGroup of answer choices
x − 1 ≥ 0
x − 1 ≤ 0
x + 1 ≥ 0
x + 1 ≤ 0
Answers
Use the data set and line plot below. Jerome studied the feather lengths of some adult fox sparrows.
How long are the longest feathers in the data set?
A.
2
2
inches
B.
2
1
4
214
inches
C.
2
1
2
212
inches
D.
2
3
4
234
inches
Answers
Answer: 2 1/2
Step-by-step explanation:
the answer is D i took the test here is proof
In the figure below, 7 ||
m. Find x.
Answers
Answer:
x+65°=120°[by alternate interior angle]
x=120°-65°
x=55°
the same ice cream shop is running a sale on cylindrical shaped tubs of ice cream. The cylinder has a radius of 4.5 cm and a height of 18 cm. Find the volume of a tub of ice cream
Answers
Answer:
you got this
Step-by-step explanation:
I believe in you
What is the total weight of 3 bags if their individual weights are 2/5, 7/10 and 3/5 pound? Give your answer as a mixed number in siplest form
Answers
Answer:
1 7/10
Step-by-step explanation:
Given that:
Weight of bag 1 = 2/5 pounds
Weight of bag 2 = 7/10 pounds
Weight of bag 3 = 3/5 pounds
Total weight of the three bags :
2/5 + 7/10 + 3/5
Take the lcm of 5 and 10
Lcm of 5 and 10 = 10
(4 + 7 + 6) / 10
17 /10
= 1 7/10
What are the variables in this expression?
f + 2g + h/4 - 7
A) f and g only
B) g and h only
C) f, g, and -7 only
D) f, g, and h only
Answers
hope this helps :)
Simplify. Simplify.
62+15
Answers
Answer:
62+15= 77
Step-by-step explanation:
Answer:
77
Can I have brain list
Step-by-step explanation:
Determine the projection of u=1.6i+3.3j in the v=-2.1-.5j direction.
A.8i+.2j
B.2.3i+.5j
C. -.6i-1.3j
D. -1.2i-1.1j
Answers
Answer:
[tex]0.80i +0.2j[/tex]
Step-by-step explanation:
The projection of u on v is expressed as;
[tex]proj_{v} u = \dfrac{u*v}{|v|^2} * v[/tex]
Given
u=1.6i+3.3j
v=-2.1i-.5j
u*v = (1.6i+3.3j )*(-2.1i-0.5j )
u*v = 1.6i(-2.1i) + 3.3j(-0.5j)
u*v = -3.36 - 1.65
u*v = -5.01
|v|² = (√(-2.1)²+(-0.5)²)²
|v|² = (-2.1)²+(-0.5)²
|v|² = 4.41+0.25
|v|² = 4.66
Substitute into the formula;
[tex]= \frac{1.71}{-5.01} * (-2.1i - 0.5j)\\= -0.3413 (-2.1i - 0.5j)\\= 0.8i + 0.17j\\= 0.80i +0.2j[/tex]
Please help me solve these two questions
Answers
I hope the answer is helpful
Help pleaseeeeeeeeeeeeeeeeeee
Answers
Explanation
What is the value of a?
A. -18
B. -14
C. 14
D. 18
Answers
...................
14. The diagonals of square ABCD intersect at E. If AE = 2, find the perimeter of ABCD.
Answers
Answer:
B, [tex]8\sqrt{2}[/tex]
Step-by-step explanation:
Diagonals of a square are congruent so AC= 4
using pythagorean theorem we can then do [tex]x^{2} +x^{2}[/tex]=[tex]4^{2}[/tex]
[tex]2x^{2} = 16\\x^{2} =8\\x=\sqrt{8} \\x=2\sqrt{2}[/tex]
Then for perimeter we times the [tex]2\sqrt{2}[/tex] by 4 and get
[tex]8\sqrt{2}[/tex]
Hope this helps and please mark brainliest!!
plz help me please please
Answers
Answer:
5%
Step-by-step explanation:
Answer:
5% increase
Step-by-step explanation:
30/600 equals .05 or 5%
Brainlest for correct awnser :D
Answers
Answer:
24 inches
Step-by-step explanation:
Find the number of subsets in the set (x l x is a day of the week)
a. 124
b. 256
c. 127
d. 128
Answers
A cheese shop has some bulk cheese in blocks measuring 30 cm x 20 cm x 8 cm. How much paper is needed to cover the block of cheese
Answers
Answer:
232cm
Step-by-step explanation:
A cheese usually has the shape of a cuboid.
Characteristics of a Cuboid
A cuboid is a convex polyhedronIt has 12 edgesIt has 8 facesIts base shape is a rectangleIt has 6 facesThe amount of paper that would be needed to cover the block of cheese can be determined by calculating the perimeter of the block of cheese which is shaped as a cuboid
Perimeter of a cuboid = 4 x (length + breadth + height)
4 x (30 + 20 + 8) = 232cm
What is equity? What does it mean to have positive equity? What does it mean to have negative equity?
Answers
Positive equity relates to assets you own that are financed by loans. The term positive equity is most commonly used with real estate investments, but there are other asset types where positive or negative equity is a consideration. As part of your financial situation, positive equity is a component of your overall net worth.
The concept of negative equity arises when the value of an asset (which was financed using debt) falls below the amount of the loan/mortgage that is owed to the bank in exchange for the asset. It normally occurs when the value of the asset depreciates rapidly over the period of use, resulting in negative equity for the borrower.
What is equivalent to 8?
A:2^3
B:3^-2
C:2^-3
D:3^2
Answers
Answer: A:2^3
Step-by-step explanation:
8=2*2*2=(2)^3
If a pack of highlighter costs 2.40 what is the cost Per highlighter, in dollars and cent
Answers
From the information you gave me, I am going to guess it is a 4 pack of highlighters.
Answer: $0.60 per highlighter
Explanation: To find the unit rate of an item, take the price ($2.40) and divide it by the amount of the product included (4).