Answer:
False
Step-by-step explanation:
It is given that Noah thinks :
9x - 2x + 4x = 3x as the subtraction sign after 9x tells us to subtract everything that comes after 9x.
This is wrong as according to the BODMAS rule, we have to do the addition operation first and then followed by subtraction operation.
That is
⇒ 9x - 2x + 4x
⇒ (9x -2x)+ 4x
⇒ 7x + 4x
⇒ 11x
Therefore the answer to the equation is 11x and not 3x.
PLZ I NEED HELP ILL GIVA YALL BRAINLIEST
Answer:
39 possible outcomes.
Step-by-step explanation:
Since there are 52 cards in a deck and Jane has 3 decks, that would give Jane 156 cards, leaving us to divide that number by 4 because 4 cards are dealt at the start of the game.
21 The graph of an exponential function is shown on the grid.
Based on the graph, which statement about the function is true?
A The range is the set of all real numbers less than 0.
B The domain is the set of all real numbers greater than-4.
C The range is the set of all real numbers greater than 0.
D The domain is the set of all real numbers less than-4.
Answer:
C The range is the set of all real numbers greater than 0.Step-by-step explanation:
We see that the function has positive range and no restriction of domain.
A The range is the set of all real numbers less than 0.
Incorrect, positive values onlyB The domain is the set of all real numbers greater than-4.
Incorrect, the domain can get any valueC The range is the set of all real numbers greater than 0.
Correct, the range is restricted to positive valuesD The domain is the set of all real numbers less than-4.
Incorrect, no restrictionsAnswer:
C is the correct answer!!
Step-by-step explanation:
hope this helped!!
4. 8 16,
Find the next 3 term of geometric sequence
Answer:
32, 64, 128
Step-by-step explanation:
Let us start by looking at the geometric progression. A geometric progression multiplies each number by a constant, which we can name r, to get the next term. Let us find this constant:
16÷8=2
8÷4=2
Both expressions confirm that our r, the constant, is indeed 2.
To find the next few terms, we simply multiply by r:
1. 16r=16×2=32
2. 32r=32×2= 64
3. 64r= 64×2 = 128
I hope this helps! Please let me know if you have any further questions :)
-5x+ 8y = 10
-4x+ y = -19
Answer:
(6, 5)
Step-by-step explanation:
Carlos purchased 6 dog leashes and 5 cat brushes for $32. Later in the summer, he purchased 3 more dog leashes and 2
cat brushes for $14. What were the prices of the leashes and brushes?
Answer:
all together the total amount of money spent was 46$
Step-by-step explanation:
The perimeter of a square is 68 inches. Write and solve an equation to find the length of its sides.
Answer:
17
Step-by-step explanation:
68/4=17
all 4 sides are equal lengths since it is a square.
Answer:
Step-by-step explanation:
68+68+68+68= (or 68x4) 272 inches
Find the value of x
Look at the picture^^
Answer with work please I need help???
Step-by-step explanation:
[tex] {30.5}^{2} = {x}^{2} + {19.1}^{2} \\ 930.25 = {x}^{2} + 364.81 \\ {x}^{2} = 930.25 - 364.81 \\ {x}^{2} = 565.44 \\ x = \sqrt{565.44} \\ \\ x = 23.78[/tex]
A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half
of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To
determine who listens and who does not, the teacher identifies the two students who scored highest on the last test
and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-
scoring students and continues in this manner until each student has their instructions. Which of the following best
describes this plan?
O This is a cluster sample.
O This is an observational study.
O This is a stratified random sample.
O This is an experiment with blocking.
O This is a completely randomized experiment.
For your question: "A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half
of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To
determine who listens and who does not, the teacher identifies the two students who scored highest on the last test
and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-
scoring students and continues in this manner until each student has their instructions. Which of the following best
describes this plan?"
The answer is D
can someone please help me
Marlowe loves to draw. She wants to refine her skills and start taking drawing lessons at a local art studio. The table shows the cost of drawing lessons.
Sorry im a little late but here's how i did it.
Hope this helps! :)
The table gives an inequality and a number to divide both sides of the inequality by. Identify the new, true inequality.
A:
B:
C:
D:
The inequality symbol is only reversed when dividing by a___ number.
Answer:
A: -4 <-1
B: -2 < -1
C: 2> -5
D:2> -1
negative
Step-by-step explanation:
i did the assignment mark as brainliest?
The new true inequality are:
A = -4 < -1
B = -2 < -1
C = 2 > -5
D = 2 > -1
The inequality symbol is only reversed when dividing by a negative number.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
A:
8 > 2
8/-2 > 2/-2
-4 < -1
B:
-10 < -5
-10/5 < -5/5
-2 < -1
C:
16 > -40
16/8 > -40/8
2 > -5
D:
-8 < 4
-8/-4 > 4/-4
2 > -1
Thus,
A = -4 < -1
B = -2 < -1
C = 2 > -5
D = 2 > -1
Learn more about inequalities here:
https://brainly.com/question/20383699
#SPJ6
a mockingbird flaps its wings about fifty thousand four hundred times in an hour round this number to the nearest thousand.
Answer: It would be 50,000
Step-by-step explanation: If it was 50,500 - 50,999 it would be : 51,000
Hope it helped out :)
Matt is given 9/10 hours to shovel a driveway. He only uses 2/3 of the given time to shovel the driveway. How much time is left?
Answer:
0.23333333333
Step-by-step explanation:
Answer:
7/30
Step-by-step explanation:
first make them both have common denominator
9/10= 27/30
2/3=20/30
they both go into 30 then subtract 27/30 and 20/30
Work out the percentage change to 2 decimal places when a price of £125.99 is increased to £150.
Answer:
Percent change is 19.06%
Step-by-step explanation:
It is given that:
Price before change = £125.99
Price after increase = £150
Change = 150 - 125.99 = £24.01
Percent of change = [tex]\frac{Change}{Price\ before\ change}*100[/tex]
Percent of change = [tex]\frac{24.01}{125.99} * 100[/tex]
Percent of change = 0.1906 * 100
Percent of change = 19.06%
Therefore,
Percent change is 19.06%
Answer:
19.06
Step-by-step explanation:
I need help with this problem
Answer:
-0.125 or -1/8
Step-by-step explanation:
switch the numerator and denominator and then divide. So, -8/1 should switch to 1/-8, and then you divide the two to get, your answer, -0.125
A 6 ft tall petrified stump standing next to a car casts a 12 ft shadow. If the car casts a shadow that is 6 ft long, then how tall is it?
Answer:
3 feet tall
Step-by-step explanation:
Carlo wants to join the gym.The gym offers three membership options 1.Pat as you go. 2.All in one price. 3.Regular deal
Answer:
This question is incomplete and lacks essential data, I have found a similar question and I am putting data below to complete this question and will try to solve this.
1. $120 = Pay as you go
2. $90 = Regular Deal
3. $100 = All in one price.
For Carlo, regular deal is the best option to choose because he goes to gym 20 times and it is least expensive.
Step-by-step explanation:
This question is incomplete and lacks essential data, I have found a similar question and I am putting data below to complete this question and will try to solve this.
Question Complete: Carlo wants to join the gym. The gym offers three membership options
1.Pay as you go = Pay only $6 each time you work out
2.Regular deal = Pay $50 a month and $2 each time you work out
2.All in one price = Pay one time $100 per month for unlimited use of our great facilities.
Carlo thinks he will go to the gym about 20 times a month.
Calculate how much each of these options would cost Carlo for one month.
Solution:
Option 1. Pay as you go:
Each time gym fee = $6
Carlo thinks he will go to gym 20 times a month
So,
Cost for option 1 = $6 x 20 = $120
Option 2. Regular deal:
$50 a month + $2 each time
So, Carlo thinks he will go to gym 20 times a month
Cost for option 2 = $50 + 20x(2$) = $90
Similarly,
Option 3. All in one price:
Fee = one time $100 per month.
Cost for option 3 = $100 per month
Because there is not any each time visit fee in this option, so whether Carlo go to gym 20 times or 30 times a day. he will be charged a fixed fee of $100 a month.
For Carlo, regular deal is the best option to choose because he goes to gym 20 times and it is least expensive.
Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000 . Find the maximum revenue Luci can make selling cookies in one day. Find the price she should sell the cookies to make the maximum revenue
Answer:
The maximum revenue Luci Lulu can make selling cookies in one day is $2,000.
The price Luci Lulu should sell the cookies to make the maximum revenue is $1.
Step-by-step explanation:
From the question, we have:
x = −2000p + 4000 ..................... (1)
Where;
x = number of cookies sold
p = price of a cookie, p, and the
Revenue function (R) can therefore be obtained as follows:
R = px ……………………….. (2)
If we substitute equation (1) into (2), we will have:
R = p(−2000p + 4000)
R = −2000p^2 + 4000p ……………… (3)
Differentiating equation (3) with respect to p and set it equal to zero, we have:
−4000p + 4000 = 0
Solving for p, we have:
4000 = 4000p
p = 4000 / 4000
p = 1
Therefore, this implies the price Luci Lulu should sell the cookies to make the maximum revenue is $1.
Substituting p = 1 into equation (3), we have:
R = (−2000 * 1^2) + (4000 * 1)
R = (−2000 * 1) + (4000 * 1)
R = −2000 + 4000
R = 2000
This implies that the maximum revenue Luci Lulu can make selling cookies in one day is $2,000.
HELP FIND THE UNIT RATE OF 90 DAYS/20 TRIPS PLEASEEEEE
Answer:
The unit rate is 4.5 days per trip
Step-by-step explanation:
So the equation would be 90 divided by 20
Simplified it is the same thing as 9 divided by 2
90 divided by 20 is 4.5
Answer:
4.5/1
Step-by-step explanation:
First, I found that 10 was the first factor or whatever I could find, so our new ratio is:
9/2
This is obviously not the unit rate, but if we divide by 2 we get:
4.5/1
So our unit rate is 4.5/1
After 50 soccer games, the ratio of wins to losses is 3:7. How many games did the team win?
Answer:
15
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)
I need help in this question
Answer:
y/x
Step-by-step explanation:
What is 1.8(x-4.2)+x simplified, I do not need to know what is x is, I just wanted to know what the equation is simplified
Answer:
2.8x - 7.56
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
what is 10 x 1080? Can someone help?
Answer:
10,800
Step-by-step explanation:
1. Multiply the ones
2. Multiply the tens
3. Multiply the hundreds
4. Multiply the thousands
5. Multiply the ten - thousands
Follow the steps and you will get the answer!
If x = 5y - 1 and 2x + 5y = -32, what is the value of y?
Answer:
y = 2 and five together
Step-by-step explanation:
The approximate time between two high tides or
two low tides is?
Answer:
It's (very roughly) 12 hours from one high tide to the next, and of course the same for low tides. That's because the tides produced when the Moon is directly overhead or in the opposite direction are the same. Same with two low tides, since there are two tides a day (both low and high).
Answer:
Because the Earth rotates through two tidal bulges every lunar day, coastal areas experience two high and two low tides every twenty-four hours and fifty minutes. High tides occur twelve hours and twenty-five minutes apart. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.
Step-by-step explanation:
because I said
please mark me brainliest
2z(4w+3z-5)-(2w+5z)(1w+4z-3) expand
Answer:
-14z^2-5zw+5z-2w^2+6w
Step-by-step explanation:
2z(4w+3z-5)-(2w+5z)(1w+4z-3)
8zw+6z^2-10z-\left(2w+5z)(w+4z-3)
8zw+6z^2-10z-20z^2-13zw+15z-2w^2+6w
-14z^2-5zw+5z-2w^2+6w
-3(-4r - 5)
combining like terms
Answer:
12r + 15
Step-by-step explanation:
Just distribute
I will try to give brainliest for the CORRECT answer
Answer:
BC is 40.8
B° is 59.03°
C° is 30.96°
Step-by-step explanation:
classic pythagoras (a² + b² = c²)
35² + 21² = 1666
sqrt1666 = 40.8
you do tan(x) here because you want to find B° and only know the opposite and adjacent sides.
35/21 = 1.66...
tan-¹(1.66..) = 59.03°
you do tan(x) here because you want to find C° and only know the opposite and adjacent sides.
21/35 = 0.6
tan-¹(0.6) = 30.96°
Mr. Hanepen can eat 30 pieces of candy in 3 minutes
and has already eaten 57 pieces of candy.
Solve for brainlist! ♥️
Solve for z.
2
=
4
5
12
Answer:
z=2256
did you mean
2z=4512?
i hope this was the question and that the answer is correct!^^