Answer:
A
Step-by-step explanation:
If you simplify the equation you are left with 5 = -1, which is an untrue statement. Therefore, no matter what value you use for x you will always be left with 5 = -1.
Answer:
A
Step-by-step explanation:
The equation is not true for any value of x because it has 4x on both sides, but has both +5 and -1 on both sides, so this is impossible.
The equation would never work because the left side would always be bigger than the right side and vice versa.
What is the volume of the cone to the nearest tenth? A) 401.2 yd3 B) 421.4 yd3 C) 484.3 yd3 D) 536.2 yd3
Answer:
Option (D). 536.2 yd³
Step-by-step explanation:
Radius of the circular base of the cone = 8 yd
Height of the given cone = 8 yd
Formula for the volume of the cone = [tex]\frac{1}{3}\pi r^{2}h[/tex]
Here r = radius of the circular base of the cone
h = height of the cone
By substituting the values of r and h in the formula,
V = [tex]\frac{1}{3}\pi (8)^2\times (8)[/tex]
= [tex]\frac{1}{3}(512\pi )[/tex]
= 526.165
≈ 526.2 yd³
Therefore, volume of the given cone is 526.2 yd³.
Option (D) will be the answer.
Answer:
D
Step-by-step explanation:
PLZ HELP!!!!!!!!!!!!!!!!!!
The figure shows the letter Z and four of its transformed images—A, B, C, and D:
A coordinate plane is shown. The letter Z has endpoints at negative 6 comma 3, negative 6 comma 1, negative 4 comma 1 and negative 4 comma 3 and has a diagonal line that goes from top right to bottom left in between. A is a shape that has endpoints at 4 comma 3, 4 comma 1, 6 comma 3 and 6 comma 1 and has a diagonal line that goes from top left to bottom right. B has endpoints at negative 6 comma negative 1, negative 6 comma negative 3, negative 4 comma negative 1 and negative 4 comma negative 3 and has a diagonal line that goes from top right to bottom left. C has endpoints at negative 3 comma negative 1, negative 3 comma negative 3, negative 1 comma negative 1, negative 1 comma negative 3, and has endpoints that go from top left to bottom right. D has endpoints at 2 comma negative 1, 2 comma negative 3, 4 comma negative 1, and 4 comma negative 3 and has a diagonal that goes from top right to bottom left.
Which of the four images was formed by a reflection of the letter Z?
A
B
C
D
heres the pic
Answer:
Step-by-step explanation:
The answer is C
Answer:trust me its c
Step-by-step explanation:
I took the test and aced it
Sharyn needs yards of fabric to make a dress for herself and yards of the same fabric to make a matching dress for her daughter. If she buys yards of fabric, how much will she have left over?
A.
yards
B.
yards
C.
yards
D.
of a yard
Answer: The answer is C 5/8 yards
Step-by-step explanation:
determine the solution, if any *Check.for extraneous solutions 3/x+2 = 4/3x-5
The value of X is 4.6
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Answer:
[tex]x = 4 \frac{3}{5} \\ [/tex]
Step-by-step explanation:
[tex] \frac{3}{x + 2} = \frac{4}{3x - 5} \\ [/tex]
Use cross multiply
[tex]3(3x - 5) = 4(x + 2) \\ 9x - 15 = 4x + 8 \\ 9x - 4x = 15 + 8 \\ 5x = 23 \\ \frac{5x}{5} = \frac{23}{5} \\ x = 4 \frac{3}{5} [/tex]
Hope this helps
brainliest appreciated
good luck! have a nice day!
Two distinct number cubes, one red and one blue, are rolled together. Each number cube has sides numbered 1 through 6.
What is the probability that the outcome of the roll is an odd sum or a sum that is a multiple of 5?
Enter your answer, in simplest fraction form, in the box.
Answer:
[tex]P(E_1 or E_2) = \frac{7}{12}[/tex]
Step-by-step explanation:
Given
Two cubes of side 1 - 6
Required
Probability that the outcome of the roll is an odd sum or a sum that is a multiple of 5
First, the sample space needs to be listed;
Let [tex]C_r[/tex] represent the Red cube
[tex]C_b[/tex] represent the Blue cube
S represent the sample space
[tex]C_r = (1,2,3,4,5,6)\\C_b = (1,2,3,4,5,6)\\S = (2,3,4,5,6,7,3,4,5,6,7,8,4,5,6,7,8,9,5,6,7,8,9,10,6,7,8,9,10,11,7,8,9,10,11,12)[/tex]S is gotten by getting the sum of [tex]C_r[/tex] and [tex]C_b[/tex]
[tex]n(S) = 36[/tex]
Calculating the Probability
Let [tex]E_1[/tex] represent the event that an outcome is an odd sum
[tex]E_1 = (3,5,7,3,5,7,5,7,9,5,7,9,7,9,11,7,9,11)[/tex]
[tex]n(E_1) = 18[/tex]
[tex]P(E_1) = \frac{n(E_1)}{n(S)}[/tex]
[tex]P(E_1) = \frac{18}{36}[/tex]
Let [tex]E_2[/tex] represent the event that an outcome is a multiple of 5
[tex]E_2 = (5,5,5,5,10,10,10)[/tex]
[tex]n(E_2) = 7[/tex]
[tex]P(E_2) = \frac{n(E_2)}{n(S)}[/tex]
[tex]P(E_2) = \frac{7}{36}[/tex]
Let [tex]E_3[/tex] represent the event that an outcome is an odd sum and a multiple of 5
[tex]E_3 = E_1 and E_2[/tex]
[tex]E_3 = (5,5,5,5)[/tex]
[tex]n(E_3) = 4[/tex]
[tex]P(E_3) = \frac{n(E_3)}{n(S)}[/tex]
[tex]P(E_3) = \frac{4}{36}[/tex]
Calculating [tex]P(E_1 or E_2)[/tex]
[tex]P(E_1 or E_2) = P(E_1) + P(E_2) - P(E_1 and E_2)[/tex]
[tex]P(E_1 or E_2) = P(E_1) + P(E_2) - P(E_3)[/tex]
[tex]P(E_1 or E_2) = \frac{18}{36} + \frac{7}{36} - \frac{4}{36}[/tex]
[tex]P(E_1 or E_2) = \frac{18 + 7 - 4}{36}[/tex]
[tex]P(E_1 or E_2) = \frac{21}{36}[/tex]
[tex]P(E_1 or E_2) = \frac{7}{12}[/tex]
Hence, the probability that the outcome of the roll is an odd sum or a sum that is a multiple of 5 is [tex]\frac{7}{12}[/tex]
Answer:
P=(E1 or E2) 7/12
Step-by-step explanation:
There are five more blue blocks than green blocks. Three times the number of green blocks, increased by double the number of blue, equals 95. How many of each colour are there?
Answer:
22 blue blocks
17 green blocks
Step-by-step explanation:
Hi, to answer this question we have to write a system of equations:
There are five more blue blocks than green blocks.
So, the number of blue blocks (b) is equal to the number of green blocks (g) plus 5.
b = g+5Three times the number of green blocks (3g), increased by double the (+2b) number of blue, equals 95.
3g+2b =95The system is
b = g+5
3g+2b =95
Replacing b=g+5 in the second equation:
3g + 2 (g+5)=95
Solving for g:
3g +2g+10 =95
5g = 95-10
5g=85
g= 85/5
g= 17
Replacing g=17 in the first equation:
b = g+5
b = 17 +5
b=22
It is 3:00pm here, and Australia is 13 hours ahead of us. What time is it in Australia?
2:00 am
3:00 pm
4:00 am
5:00 am
Answer:
4 am
Step-by-step explanation:
Answer:
4:00 AM
Step-by-step explanation:
15:00 + 13:00
28:00
24:00+4:00
00:00+4:00
4:00 AM
Which statements correctly describe the fraction bar diagram shown at left? Check all that apply.
A fraction bar labeled 1 whole divided into 7 parts. 1 part is shaded.
The unshaded portion of the fraction bar represents a unit fraction.
.Each part of the whole fraction bar is equal to one-seventh.
.The shaded portion of the fraction bar represents a unit fraction.
.The shaded portion of the fraction bar represents .
.Each part represents a unit fraction.
Answer:
B. Each part of the whole fraction bar is equal to one-seventh.
C. The shaded portion of the fraction bar represents a unit fraction.
E. Each part represents a unit fraction.
Step-by-step explanation:
The answer is B because, there are 7 parts to the diagram, which means each part is equal to 1/7. So each part is a unit fraction, and 1/7 can represent the shaded part, and since it is a unit fraction, C. can also apply.
Hope this helps! Have a great day!
(Make sure to stream Mic Drop, Boy With Luv, Blood Sweat & Tears, Black Swan, On, and etc.! [BTS songs])
Answer:
B
Step-by-step explanation:
Whole fraction is 7/7
Each part of the whole fraction = 1/7
Each question on a multiple-choice exam has four choices. One of the choices is the correct answer, worth 5 points, another choice is wrong but still carries partial credit of 1 point, and the other two choices are worth 0 points.
If a student picks answers at random, what is the expected value of his or her score for a problem?
_____points
If the exam has 30 questions, what is his or her expected score?
_____points
Answer:
1.5
45
Step-by-step explanation:
The probability for each answer is 1/4
(5+1+0+0)/4 = 6/4= 1.5Each question has an expected value of 1.5 points.
The expected score of the test is 30*1.5= 45 points
pls answer i will mark as brainliest
somebody please help me
Answer:
382.5 square inches
Step-by-step explanation:
The surface area of a 3D object is the sum of the area of all of the surfaces. Therefore, the surface area of this prism is:
[tex]9\cdot 13.5 + 2(\dfrac{1}{2} \cdot 10\cdot 9)+ 9\cdot 9 + 10\cdot 9= 382.5[/tex] square inches.
Hope this helps!
helppppppppp me please :(
Answer:
12.57cm
Step-by-step explanation:
circumference =2^r
=2×22/7×2
=12.57cm
If F(x) = log 5 2x, find F^-1(x). a. 5^y=2x b. 5^2y=x c. y = (5^x)/2
Answer:
y = [tex]\frac{5^{x} }{2}[/tex]
Step-by-step explanation:
y = log 5 2x
inverse ------> y=x
x = log 5 2y
[tex]5^{x} = 2y[/tex]
y = [tex]\frac{5^{x} }{2}[/tex]
Answer:
y = ([tex]5^{x}[/tex] )/2
Step-by-step explanation:
Hope This Helps!!
Find the midpoint of the line segment.
Answer:
(9,-5)
Step-by-step explanation:
Find the middle of each of the x and y coordinates. Then put that together.
Answer:
The correct answer is
(9, -5)
Find the middle of each of the x and y coordinates. Then you can plug in each x/y into a coordinate. This will get you the midpoint.
Hope I could help
- Quinn :)
Given that triangle PQR congruent triangle STU, , what is the measure of angle U ?
Answer: B or 52 degrees...
Step-by-step explanation:
Congruent means to have identical properties and because triangle PQR is congruent to triangle STU, their angles are also congruent.
In the theorem AAA, angle P is congruent to S, angle Q is congruent to T and angle R is congruent to U.
The sum of the angles in a triangle is 180 degrees and so you would do 180-86-42 which would get you to 52 degrees and that is the answer.
Question 4
A book sold 31,300 copies in its first month of release. Suppose this represents 9.9% of the number of copies sold to date. How many copies have been sold to date?
Answer:
313131 total books
Step By Step Explanation: We can use the equation 9.9%x=31000 and x represents the total number of books.
We could also convert this percent to a decimal by moving it two places to the left (0.99).
Nevertheless, we can divide both sides by 9.9% to find that the total number of books is 313131 books.
Stephan has a piece of wood that measures 18 inches long and 12 inches wide. He wants to make a tray with sides 2 inches high. Maurice says that he can make a tray that has a base measuring 101/2 inches by 101/2 inches. Is he correct? Use the drop-down menus to explain your answer.
Answer:
He is wrong, because for 2 inches of height, the peice of wood for base has smaller width than the width required for the base Maurice wants to make.
Step-by-step explanation:
Length of wood = 18 inches
Width of wood = 12 inches
If height of the table is needed = 2 inches
2 inches are reduced from each side of the piece of wood.
The new measurement become:
Length of wood = 18 - 2 - 2 inches
Length of wood = 14 inches
Width of wood = 12 - 2 - 2
Width of wood = 8 inches
Maurice wants to make a table with following dimensions:
Base = [tex]10\frac{1}{2}\cdot10\frac{1}{2}[/tex]
which means
Length required = [tex]10\frac{1}{2} = \frac{21}{2}=10.5 inches[/tex]
Width required = [tex]10\frac{1}{2} = \frac{21}{2}=10.5 inches[/tex]
As width is greater than the width of the piece of wood , he cannot make a table of such dimension from it.
Combine the like terms to create an equivalent expression: -2k-(-5)+1
Answer:
-2k + 6
Step-by-step explanation:
-2k -(-5) + 1 -(-5) is also +5
-2k + 5 + 1 Combine like terms
-2k + 6
Answer:
-2k+6
Step-by-step explanation:
-2k-(-5)+1
-(-5)+1=6
-2k+6
Happy Paws charges $19.00 plus $3.50 per hour to keep a dog during the day. Woof Watchers charges $11.00 plus $4.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable h to represent the number of hours. help???????????//
Answer: 6.4 hours
Step-by-step explanation:
Hi, to answer this question we have to write an equation for each case:
Happy paws: the cost is equal to the fixed charge (19) plus the product of the charge per hour (3.50) and the number of hours (h).
Happy Paws Cost = 19+3.50h
Woof Watchers: the cost is equal to the fixed charge (11) plus the product of the charge per hour (4.75) and the number of hours (h).
Woof Watcher Cost = 11+ 4.75h
Since both costs must be equal:
Happy Paws Cost =Woof Watcher Cost
So:
19+3.50h = 11+ 4.75h
Solving for h:
19-11 = 4.75h-3.50h
8 = 1.25h
8/1.25 =h
h = 6.4 hours
The M virus has a diameter of 5 x 10^-7meters, while the P virus measures about 2 x 10^-8meters in diameter. A) is the M virus or P virus larger in diameter? B) how many times as larger is the larger virus than the smaller virus?
Answer:
(A) The M virus is larger than the P virus in diameter
(B) Diameter of virus M is 25 times the diameter of virus P
Step-by-step explanation:
Notice that the values given are in the so called "scientific notation", and which involves in this case negative exponents for the multiplier 10.
So we can write these values in decimal form for easier comparison of which one is he largest one:
Diameter of M virus = [tex]5\,*\,10^{-7}\,m = 0.0000005\,\,m[/tex]
Diameter of P virus = [tex]2\,*\,10^{-8}\,m = 0.00000002\,\,m[/tex]
Which clearly shows that virus M is larger than virus P in diameter
The quotient between diameters will give us the answer to how many times larger virus' M diameter is:
[tex]\frac{M}{P} =\frac{0.0000005}{0.00000002} \\\frac{M}{P} =25[/tex]
-5 5/8 + 3 1/2
A: -3 1/8 B: -2 1/2 C: -2 1/8 D: -7/8
ASAP
Answer:
C
Step-by-step explanation:
You take the fractions and turn them into mixed numbers. You do that by multiplying the whole number with the denominator and adding the numerator for the new numerator and the denominator stays the same. Now, you'd get -45/8 + 7/2. Change the denominator of the second one to 8 so you can add them, do this by multiplying the numerator and denominator by 4. Now you get -45/8 + 28/8. -45 +28 is -17 so your answer is -17/8. If you need it In mixed form, 8 goes into -17 2 times so you get -2 and the remainder 1/8 so -2 1/8.
What is the rate of change in the table?
Answer:
3
Step-by-step explanation:
Answer:
1
From -2 to 0 there is 2, but from 1 to 3 there is also 2, so 2/2=1
Which of the following best describes a line? A. The set of all points in a plane at a given distance from a given point B. The set of all points in a plane that are equidistant from a given point and a given line C. The set of all points in a plane that are equidistant from three points D. The set of all points in a plane that are equidistant from two points
Answer: B. A line is the set of all points in a plane at a given distance from a given point.
Step-by-step explanation:
There is no step by step but hope it helps! :)
Help would be much appreciated
Answer:
Given
Step-by-step explanation:
Question 1)
Answer is c) 12.94 units
Because,
The sides will be √20,√20 and 4 units, so you add them
You get √20 through Pythagorean theorem √(2^2 + 4^2)
= 4.47
Question 2)
Answer:
3x^2 + 4y^0 +x^-1
Substitute the values,
3*(4)^2 + 4*(5)^0 + (4)^-1
3*16 + 4*1 * 1/4
( Any number raised to 0 is 1
4^-1 = 1/4^1 )
= 49
Answer:
Option C
49
Step-by-step explanation:
sides of triangle:
4√2²+4²=√20=4.47√2²+4²=√20=4.47P=4+4.47*2=12.94
Option C is correct
================
x=4, y=5
3x²+4y⁰×x⁻¹=3×4²+4×5⁰×4⁻¹=48+1=49
How do I do this?
Calculate the number of protons and the number of neutrons for each of the below
Answer:
to calculate the number of protons and neutrons, you can look at the element on the periodic table. the number of protons is equal to the atomic number of the element (for example, hydrogen is the first element on the periodic table, so it has 1 proton).
The number of neutrons is the mass number (listed on the periodic table as well) - the number of protons, aka the atomic number.
for example, for the element krypton, we take the mass number, 83.80, and round it up to 84. Then we subtract it's atomic number, 36, from it, to get 48, which is the number of neutrons in the atom
hi can anybody help me please i will mark them as a brainlest
Answer:
area 4.5
Step-by-step explanation:
C has the largest Area. It's area is 4.5
hope this helps
Answer:
C has the largest area.
Step-by-step explanation:
3x3=9, 9/2=4.5
ABC is reflected over the y-axis. What are the vertices of
A' B' C' ?
A (0-2), B'(-2,-4). C'(-5, -1)
A(-2,0), B(-4, 2), C (-1, 5)
A' (0.2). B (-2,4), C'(-5,1)
A'(0, 2). B' (2, 4). C'(5.1)
Answer:
The answer is the first option.
Step-by-step explanation:
When you flip it over the y axis. A would still be the same. ANd the first one matches A.
Four statistics professors and six chemistry professors are available to be advisors to a student organization. The student organization needs two of the professors to be advisors. If each professor has an equal chance of being selected, what is the probability that both professors are chemistry professors?
Step-by-step explanation:
Total professors = 10
Probability of chemistry professors = 2/6 = 1/3
If 1/x + 1/y = 1/4 and 1/x − 1/y = 3/4 , then x = ? PLEASE ANSWER ASAP!!! Thank you!!!!
Answer:
2
Step-by-step explanation:
1/x + 1/y = 1/4
1/x − 1/y = 3/4
add up side-by-side
2/x=4/4
2/x=1
x=2
Identify the conclusion of the following conditional statement: She will go to work if she recovers from her cold. Question 17 options: A) She recovers from her cold. B) She will go to work. C) She won't go to work. D) She doesn't recover from her cold.
Answer:
B) She will go to work
Step-by-step explanation:
In the given question, a conditional statement has been provided which could be proved true if the conditions are in favour or false if the conditions are not in favour.
The conditional statement says that if in future, she will recover from the cold then only she will go to work. The conclusion that can be drawn from the conditional statement is that she will go to work. But this activity can be performed only when the conditions will be in favour of her that is if she will recover otherwise she will remain at her home.
Thus, Option-B is the correct answer.