Answer:
3
Step-by-step explanation:
4x +1 =2x +7
4x - 2x =7 - 1
2x =6
x=6 :2
x=3
Answer:
-2x to both sides
-1 to both sides
then you get 2x=6
divide each side by 2
x=3
tep-by-step explanation:
Graph the linear equation find three points that solve the equation then plot on the graph x-4y=-18
15b+5b+12+12b
simplified
Answer: 49B
Step-by-step explanation: Its the right answer
Answer:
32b + 12
Step-by-step explanation:
Add up all the values with b in them, so 15 + 5 + 12 = 32. Then, add the whole number. Your simplified answer should be 32b + 12.
Hopefully this helps- let me know if you have any questions!
Which expression is equivalent to (10x)–3? StartFraction 10 Over x cubed EndFraction StartFraction 1000 Over x cubed EndFraction StartFraction 1 Over 1000 x cubed EndFraction StartFraction 1 Over 10 x cubed EndFraction.
The expression which is equivalent to the provided expression of variable x is,
[tex]\dfrac{1}{1000x^3}[/tex]
What is the equivalent expression?Equivalent expressions are the expression whose result is equal to the original expression, but the way of representation is different.
The given expression in the problem is,
[tex](10x)-3[/tex]
Let the equivalent expression of this expression is f(x). Thus,
[tex]f(x)=(10x)^{-3}[/tex]
The number, with negative power, can be written in the fraction of 1 with the same but positive power or exponent. Therefore,
[tex]f(x)=\dfrac{1}{(10x)^{3}}[/tex]
Solve it further as,
[tex]f(x)=\dfrac{1}{(10)^3(x)^{3}}\\f(x)=\dfrac{1}{1000x^3}[/tex]
Hence, the expression which is equivalent to the provided expression of variable x is,
[tex]\dfrac{1}{1000x^3}[/tex]
Learn more about the equivalent expression here;
https://brainly.com/question/2972832
Answer: C
Step-by-step explanation:
Given f (x) = 17 minus x squared, what is the average rate of change in f(x) over the interval [1, 5]? –6 Negative one-half One-fourth 1.
The average rate of change in f(x) over (1,5) is -6.
Given function is:
[tex]f(x) =17-x^{2}[/tex]
[tex]f(5) = -8\\\\f(1) = 16[/tex]
What is the average rate of change in a function over an interval?The average rate of change is a measure of how much the function changed per unit, on average, over that interval.
We know that
The average rate of change in f(x) over (a,b) is given by:
The average rate of change = [tex]\frac{f(b)-f(a)}{b-a}[/tex]
So, The average rate of change in f(x) over (1,5) = [tex]\frac{f(5)-f(1)}{5-1}[/tex]
The average rate of change in f(x) over (1,5) = [tex]\frac{-8-16}{5-1}[/tex]
The average rate of change in f(x) over (1,5) = -6.
Therefore, the average rate of change in f(x) over (1,5) is -6.
To get more about the average rate of change visit:
https://brainly.com/question/8728504
Answer:
-6
Step-by-step explanation:
Do the following side lengths form a right triangle?
7,24,25
Answer:
yes
Step-by-step explanation:
Mrs. Martin made 15 gallons of
sweet tea for a celebration. How many
quarts of sweet tea did Mrs. Martin
make?
Answer:
60 US Quarts
Step-by-step explanation:
15 gallons = 60 US Quarts
Answer:
60 US QUARTS
Step-by-step explanation:
Since, 1 gallon = 4 US QUARTS
15 gallons = x
Therefore, 15 gallons × 4 US QUARTS / 1 gallon
= 60 US QUARTS
The times of 4 boys in a 4 X 100 metres relay race were:
Arthur 12.5 seconds
Walter 13.0 seconds
Ken 12.4 seconds
Andy 12.02 seconds
Who ran the fastest leg?
Graph the function y=x3+6x2+2x-11. Based on the graph, what is the largest possible x-value if y=0? Round your answer to the nearest hundredth, if necessary.
1.11
1.9
5.2
13.2
Answer:not sure but I would go with 1.11.11
Step-by-step explanation:
A garden is in the shape of a rectangle, ABCD, and a semicircle.
AD is the diameter of the semicircle.
Carol is going to cover the garden with fertiliser.
A box of fertiliser costs £4.99
Carol has been told that one box of fertiliser will cover 12 m? of garden.
(a) Work out the cost of buying enough fertiliser to cover the garden completely.
Answer:
34.93
Step-by-step explanation:
find area of semicircle=(pi×radius squared)/2=27.7
find area of rectangle=base×height=47.04
74.74=total area
if one box covers 12 how many boxes cover 74.74=6.2283 but you cannot buy .2283 of fertiliser so you round up to 7 boxes
so total cost becomes 7×4.99=34.93
Lia and Sydney are each traveling in a car along the highway. Lia's travel is modeled by a table. Sydney's travel is modeled by a graph.
Did Lia or Sydney travel faster? How do you know?
I need this(im giving 30 points)need it fast plz
Answer:
Lia traveled faster because her distance surpassed Sydney's distance after the first hour.
Step-by-step explanation:
PLEASE HELP I WILL GIVE BRAINLEST!!!. How much of the brownies will each person get if there are 3 people and 4 brownies? Use words, pictures, and an equation to explain your thinking.
Answer:
each person will get 3/4 of a brownie
Step-by-step explanation:
If you divide 3 into 4 you get 3/4
[tex]3/4 = \frac{3}{4}[/tex]
A circle's radius is 15 centimeters.
What is the circle's circumference (use 3.14 for pi and round to nearest
tenth)?
Plzzzzzz help me
Answer:
use the formula for circumference
Step-by-step explanation:
Answer:
706.8 if rounded then its 706.9
I need help with this worksheet.
Answer:
A = 40
B = 90
C = 53.5
D = 34
E = 90
F = 52.9
G = 90
H = 59.6
I = 104.5
J = 45
K = 90
L = 72
M = 107.3
N = 47.7
O = 36
P = 90
ANYONE GOOD AT MATH NEED HELP
Answer:
*I just learned that in probability if a question has 'and' it means you multiply and if it has 'or' it means you add*
1a) 1/6
There are two numbers greater than four (5 and 6). There are 6 possible numbers you can get, so the fraction would be 2/6, or simplified would be 1/3. There are two options you can get when flipping a coin, so the chance of getting a head is 1/2. This is an 'and' problem so multiply 1/3•1/2 and you get 1/6.
1b) 1/4
There are 3 even numbers (2, 4, and 6), so the probability would be 3/6 or simplified to 1/2. The chance of landing on a tail is also 1/2, as there are two possible options. This is an 'and' problem so multiply 1/2•1/2 and you get 1/4.
2) 1/8
Write out your possible results: HHH, HHT, HTH, THH, HTT, THT, TTH, TTT.
3a) 1/8
There are 4 shirt options to choose from. The chance of picking blue is 1/4. There are 2 pant options. The chance of picking black is 1/2. This is an 'and' problem, so multiply 1/4•1/2 and you get 1/8.
3b) 1/4
There are 4 shirt options to choose from. This is an 'or' problem because he can choose an orange shirt OR a red shirt. The probability of picking an orange shirt is 1/4 and the probability of picking a red shirt is 1/4. 'Or' means you use addition so add 1/4+1/4 and you get 2/4 or simplified is 1/2. There are 2 pant options to choose from, so the probability of choosing brown pants is 1/2. Now, this is an 'and' problem, so multiply 1/2•1/2 and you get 1/4.
Are the ratios 16:8 and 2:1 equivalent?
Thus 16:8 and 2:1 are equivalent.
→ 16:8
divide both by 8
[tex]\rightarrow \sf \dfrac{16}{8} :\dfrac{8 }{8}[/tex]
simplify
→ 2 : 1
Answer:
Yes! Because they are in proportion: 1x8 = 8, 2x8 = 16 therefore, 2:1 and 16:8 are equivalent. Similar to equivalent fractions - you need to multiply both numbers by the same number.
Step-by-step explanation:
If you need further help, feel free to let me know. I noticed you've posted 2 of the same type of questions - is there anything you are confused about?
Solve the system of equations using substitution
4x + 2y = 16
=−12+5
Answer:
[tex]x=\frac{70}{11},\:y=\frac{20}{11}[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}4x+2y=16y\\ y=-\frac{1}{2}x+5\end{bmatrix}[/tex]
[tex]\mathrm{Substitute\:}y=-\frac{1}{2}x+5[/tex]
[tex]\begin{bmatrix}4x+2\left(-\frac{1}{2}x+5\right)=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}[/tex]
[tex]Simplify[/tex]
[tex]\begin{bmatrix}3x+10=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}[/tex]
Isolate x for 3x+10=16(-1/2x+5): [tex]x=\frac{70}{11}[/tex]
[tex]\mathrm{For\:}y=-\frac{1}{2}x+5[/tex]
[tex]\mathrm{Substitute\:}x=\frac{70}{11}[/tex]
[tex]y=-\frac{1}{2}\cdot \frac{70}{11}+5[/tex]
[tex]-\frac{1}{2}*\frac{70}{11}+5=\frac{20}{11}[/tex]
[tex]y=\frac{20}{11}[/tex]
[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]
[tex]x=\frac{70}{11},\:y=\frac{20}{11}[/tex]
George wrote an integer. The opposite of George's integer is -53. Which of these statements about George's integer must be true? I. The integer is 53. II. The integer has an absolute value of -53. III. The integer is -53. IV. The integers has an absolute value of 53.
Answer: The integers has an absolute value of 53.
Step-by-step explanation:
Given that:
George wrote an integer ;
Let integer = y
Opposite of integer = - 53
From the options given, the best conclusion that must be true is to say George's integer has an absolute value of 53. Because an absolute value clears our doubt of the integer being positive or negative. Also, an absolute value cannot be negative.
Also, an integer of - 53 cannot have an opposite value of - 53
What is angle P
I will mark you.
Trent drank 3/5 of a gallon of water. Nicholas drank 2/3 of a gallon. who drank more water?
Answer:
Trent drank more Water than Nicholas because 3/5 is bigger than 2/3
If you flip the coin 96 times,how many heads?
If this is a good coin meaning that the head has as many chances as being flipped as a tail then you can expect 48.
There are only two options per flip and thus both sides have an even chance of getting flipped. So each would have half the number of flips to be flipped.
Hope that helped!
Number 2 =D I solved the last 2 so this is my last one
Answer:
Combined Weight Change = -35 lb / 4 total people = Avg weight change per person of -8.75 lb.
Step-by-step explanation:
What is it called when you can not factor an equation
Answer:
polyminal
Step-by-step explanation:
A polynomial with integer coefficients that cannot be factored into polynomials of lower degree , also with integer coefficients, is called an irreducible or prime polynomial . Example 1: x2+x+1.
Example 2:
The polynomial
x2−2
is irreducible over the integers. However, we could factor it as
(x−2√)(x+2√)
if we are allowed to use irrational numbers. So the irreducibility of a polynomial depends on the number system you're working in.
Someone please help me on this.
Answer:
[tex]36n^2+12n+1[/tex]
Step-by-step explanation:
Foil the equation!
1. You see that is to the second power so it means this [tex](6n+1)*(6n+1)[/tex]
2. Then you use the Foil method. First, Outside, Inside, and Last.
3. Combined like terms
4. Answer!
A tip you can use to avoid Foil is this mental math trick: (Keep in mind this only works if the polynomial is being squared.)
1. Multiply the first number by itself = [tex]6n *6n = 36n^2[/tex]
2. Add the first number by itself = [tex]6n+6n = 12n[/tex]
3. Multiply the last number by itself = [tex]1*1 =1[/tex]
4. Combined to form your answer = [tex]36n^2+12n+1[/tex]
NOTE: This is the same thing as a foil but it uses mental math so it takes less time!
One piece of wheat bread contains 2 g of fiber or 8% of the amount of fiber that most people need in a day. What is 8% written and decimal and fraction?
8% written and decimal and fraction are 0.08 and 2/25 respectively
Writing percentage in decimal formGiven the percentage of fiber expressed as 8 %
We are to write 8% in both decimal and fraction form
Decimal form of 8% is 0.08
Fractional form of 8% = 8/100 = 2/25
Hence 8% written and decimal and fraction are 0.08 and 2/25 respectively
Learn more on decimal and fractions here:https://brainly.com/question/703656
lison had 310 rocks in her rock collection. After three months, her collection increases by 40%. How many rocks does Alison have now?
Answer:
434
Step-by-step explanation:
310 * 1.4 = 434
or if you want to break it up more:
10% of 310 = 31 (to get 10% divide by 10)
to get from 10% to 40% multiply your answer by 4
31 * 4 = 124
so 40% = 124
this means over the three months Allison's rock collection increased by 124.
to get the total amount of rocks Allison has now add the increase to the original value
310 + 124 = 434
A statue casts a shadow that is 360 meters long. At the same time, a person who is 2 meters tall casts a shadow that is 6 meters long. How tall is the state?
Answer:
1080
Step-by-step explanation:
what is the slope in y-1= -2/3x
Answer:
-2/3
Step-by-step explanation:
The slope is the coefficient of the variable x when it comes to graphing. In this equation, relatively no change needs to be made, as the y-intercept is on one side while the slope doesn't need to move.
Answer:
m= - 2/3
Step-by-step explanation:
could i have brainiest answer thankss friend :)
They need to park the Mystery Machine. They could either park in the lot that charges $5 and then $2 an hour, or they could park using the meter on the street that charges $3.75 per hour.
Write an equation that describes when the cost is the same at both locations (the parking lot and on the street).
Please, I just need an equation
Answer: 5 + 2x = 3.75x
Step-by-step explanation:
From the question, they could either park in the lot that charges $5 and then $2 an hour, or they could park using the meter on the street that charges $3.75 per hour.
The equation that describes when the cost is the same at both locations goes thus:
Let the number of hours used be x
The equation can then be written as:
$5 + $2x = $3.75x
5 + 2x = 3.75x
solve pls brainliest
Answer:
15 out of 21 boys brought their lunch to school
Step-by-step explanation:
We need to get the denominator the same!
3/5 x 7 = 21/35
3/7 x 5 = 15/35
15 out of 21 boys brought their lunch to school :)
Please rate and mark brainliest!!
Have an amazing day!!
Answer:
the answer would be 15/21 my friend :) please rate 5 stars and give brainlest.
Step-by-step explanation:
PLEASE HELP! I WILL MAKE YOU BRAINLIST
I would say proportional because the rise/run is constant