Answer:
3
Step-by-step explanation:
(10x 2 +5x-3)+( 7x 2 -2x+7)
Answer:
3x+38
Step-by-step explanation:
1. (10x2 +5x-3)+(7x2 -2x+7) : rewrite problem
2. (20+5x-3)+(14-2x+7) : PEMDAS (10x2=20 and 7x2=14)
3. (5x+17)+(-2x+21) : PEMDAS (20-3=17 and 14+7=21)
4. 3x+38 : Combine like terms
9/10 / -6/5 WHAT IS THE ANSWER?!?!?!?!?
Answer:
the answer is [tex]-\frac{3}{4}[/tex]
Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
HELP HAVING A BAD DAY
Write as a monomial in standard form:
(–x^2y^3m)^5
Answer: -x^10y^15m^5
Explanation:
The term -x^2 is the same as -1*x^2
Raising -1 to an odd number power leads to -1. So this is why the answer has the negative out front.
For each of the variable terms, multiply the inner and outer exponents. For example, (x^2)^5 = x^(2*5) = x^10.
The general rule is (a^b)^c = a^(b*c).
For the term 'm', think of it as m^1
What is the 75th term of the arithmetic sequence -1, 5, 11
Answer:
75th term = 443
Step-by-step explanation:
[tex]a_{n}=a_{1}+d(n-1) \\a_{n}=-1+6(n-1) \\a_{75}=-1+6(75-1) \\a_{75}=-1+6(74)\\a_{75}=-1+444\\a_{75}=443 \\\\[/tex]
Which linear inequality is represented by the graph?
O y > 1/3x - 4
O y < 1/3x - 4
O y < 1/3x + 4
O y > 1/3 x + 4
What is the conjugate of the denominator (5 – V2)?
Answer:
5 + [tex]\sqrt{2}[/tex]
Step-by-step explanation:
Given a ± [tex]\sqrt{b}[/tex] , then the conjugate is
a ∓ [tex]\sqrt{b}[/tex]
Given
5 - [tex]\sqrt{2}[/tex] , then the conjugate is 5 + [tex]\sqrt{2}[/tex]
What is the slope of a line that passes through the points (2,0) and (6,−12)?
please help
Answer:
-3
Step-by-step explanation:
0 - -12 = 12
2-6 = -4
12/-4 = -3
Answer:
y=-3x+6
Step-by-step explanation:
I found the rise over run by doing x1-x2/y1-y2 and found it to be 4/-12 then simplify to -3 and that's the slope. to find the intercept you get the x-intercept which is a given of 2 scince the slope is negative with the x-intercept being positive the y-intercept is going to be positive 2×3 =6 so y intercept is 6.(Sorryfor makingthe explanationof y-interceptdo complicated)
HELP:( I know I’m slow and all asking all these question today but...
Second answer
Step-by-step explanation:
A case of wood screws weights LaTeX: 18\frac{2}{3}\:18 2 3 pounds. Each individual box of wood screws weighs LaTeX: 1\frac{1}{3}1 1 3 pounds. How many boxes are in the case?
Answer:
5
Step-by-step explanation:
Cause you have to divide 113 by 23 and you get 4.91304347836 and cause a bigger number you have to round up and u will get at least 5 boxes.I hope I helped :)
Help!! I do not get it, you have to find the ratio and put it in simplest form all I need to do is letter (W)!!
Answer:
24
Step-by-step explanation:
ratios are just like fractions. The ratio would be 1200:50 but think of it like [tex]\frac{1200}{50}[/tex]
To simplify find common factors of each number
1200 and 50 can both be divided by 50 so divide each by 50
1200 ÷ 50 =24
50 ÷ 50 = 1
now your new ratio is 24:1 or just 24
Answer:
Step-by-step explanation:
24 students to every 1 teacher 24:1
1200/50= 24
How many ways can the number 10 be written as the sum of exactly three positives and not
necessarily different integers if the order in which the sum is written does not matter? For instance,
10 = 1 + 4 + 5 is one such sum. This sum is the same as 10 = 4 + 1 + 5.
In 8 ways the number 10 can be written as the sum of exactly three positives and not necessarily different integers if the order in which the sum is written does not matter .
What is positive integers ?Positive integers are all whole numbers, both positive and negative, that are larger than zero and do not include fractions or decimals
According to the question
The ways can the number 10 be written as the sum of exactly three positives and not necessarily different integers order doesn't matter
Now ,
10 as sum of 3 positive integers
10 = 1 + 1 + 8
10 = 1 + 2 + 7
10 = 1 + 3 + 6
10 = 1 + 4 + 5
10 = 2 + 2 + 6
10 = 2 + 3 + 5
10 = 2 + 4 + 4
10 = 3 + 3 + 4
Hence, In 8 ways the number 10 can be written as the sum of exactly three positives and not necessarily different integers if the order in which the sum is written does not matter .
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Please helpp!
Find the difference. Use a number line. Enter your answer as a simplified mixed number.
Answer:
2[tex]\frac{7}{9} \\[/tex]
Step-by-step explanation:
-(2/9) + 3
= 27/9 - 2/9
= 25/9
= 2[tex]\frac{7}{9} \\[/tex]
Solve for x
Is it A,B,C or D?
Answer:
A makes the most sense, you would get rid of Y by multiplying it,it is the opposite of divison, this is because x is already almost by itself. the last step would be to get rid of Y. you would multiply Y to cancel it out on the right side and do the same to the left. this automatically gets rid of B and C,leaving A and D, but D doesnt have the R,so that gets rid of D, leaving A.
what is 4 divided by 5/9 equaled to ?
Answer:
7.2
Step-by-step explanation:
Answer:
Step-by-step explanation:
4 / 5/9
= 4 x 5/9
= Reciprocal ( means interchange it)
9/5 x 4
In this case there is no cancelation so you can write it directly
= 36/5 is the answer In Improper Fraction it is 7 1/5
egadar amd fred share cupcakes in the ratio 3:1 if edgar gets 9 cakes how many does fred get(pleez someone anwer my question
Answer:
3
Explanation:
For every 3 cupcakes that Edgar gets, Fred gets 1. So, if Edgar gets 9, Fred gets 3.
16. A negative number x a negative number is always positive. *
true
false
nositi
Answer:
True.
Step-by-step explanation:
I don't know the explanation behind any of it, but a negative number, when multiples by another negative number, is always positive.
If g(x) = 3x -1 and if g(x)=7, then which of the following is the value of a?
a) 22
b) 5
c) 8/3
d) 21
Answer:
C 8/3
Step-by-step explanation:
g(x)=3x-1=7
<=> 3x=7+1
<=> 3x=8
<=> x=8/3
Hannah works at an electronics store as a salesperson. Hannah earns a 7% commission on the total dollar amount of all phone sales she makes, and earns a 7% commission on all computer sales.
How much money would Hannah earn in
commission on a day that she sold $1000 worth of phones and $1700 worth of computers?
How much money would Hannah earn in commission on a day that she
sold $p worth of phones and $c worth of computers?
Answer:
Step-by-step explanation:1000x.07 70
1700x.07. 119
119+70. 189
The amount of commission earned on a day that she sold $1000 worth of phones and $1700 worth of computers is $189.
The amount Hannah earns in commission on a day that she
sold $p worth of phones and $c worth of computers is 0.07 ( p + c).
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Commission on phones = 7%
Commission on computers = 7%
Now,
Sold phones worth = $1000
Computer sold worth = $1700
Now,
The total commission earned.
= 7/100 x 1000 + 7/100 x 1700
= 70 + 119
= $189
Now,
The total commission earned.
= 7/100 x p + 7/100 x c
= 7/100(p + c)
= 0.07 (p + c)
Thus,
$189 commission was earned.
0.07 ( p + c) commission was earned.
Learn more about percentages here:
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A number is divisible by 11 if the difference of the
sums of the alternate digits is either 0 or divisible
by 11.
Answer:
★ A number is divisible by 11 if the sum of the digits in the odd places and the sum of the digits in the even places difference is a multiple of 11 or zero.
Step-by-step explanation:
Hope you have a great day ;-)
Answer:
the answer is 4 odd
Step-by-step explanation:
I think
the sum of two numbers is 72 the greater number is 8 more than the smaller number which equation can be used to solve for the smaller number?
a x - (x + 8) = 72
b x + (x + 8) =72
c x(x + 8) = 72
d x(x - 8) = 72
Answer:
let x is the smaller number
bigger number is x + 8
The sum of two numbers is 72
so
x + (x+8) = 72
answer
x + (x + 8) = 72
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Two numbers add up to 72
let's assume they r x and y
ome number is 8 more than the other
so it will be x and x+8
Therefore x+x+8=72
Solve for x:
3x - 6y = 9
The
The table shows the average daily number of hours sleep of 10 children.
Age (years)
6 1 3 8 4 5 2 7 9 7
Number of hours sleep 12.5 15 13.2 11 14 12 14 11.69.8 11
The first eight results have been plotted.
a) Plot the next two points.
x
Number of hours sleep
b) What type of correlation is shown
by the graph? Negative
10
c) Draw a line of best fit.
2
4
6
8
10
Age (years)
Please help.
Answer:
C: about 10 Hours
Step-by-step explanation:
i was on the assignment and i got C correct
The missing points are (7, 11), and (9, 9.8) and the type of correlation is negative.
What is the line of best fit?A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.
[tex]\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}\\\\\\\rm c = \dfrac{\sum y -m \sum x}{n}[/tex]
Let the line of best fit is:
y = mx + c
The missing points are:
(7, 11), and (9, 9.8)
The correlation will be negative.
The line of best fit is shown in the picture.
Thus, the missing points are (7, 11), and (9, 9.8) and the type of correlation is negative.
Learn more about the line of best fit here:
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f(x) = –x^2– 10
Find f(-4)
Shel bought a $6,000 desk based on her income she can only afford to pay 600 per month The charge on the unpaid balance is 2% each month Calculate the balance outstanding at the end of month 2
Answer:
$5,030.40
Step-by-step explanation:
The balance outstanding at the end of any month is the due amount after adjusting for interest and loan repayment amount. The amount outstanding can be calculated as:
First month
Due amount = $6,000
Interest at 2% = $6,000*2% = $120
Loan repayment = $600
Reduction in balance = $600 - $120 = $480
Balance remaining = $6,000 - $480 = $5,520
Second month
Due amount = $5,520
Interest at 2% = $5,520*2% = $110.4
Loan repayment = $600
Reduction in balance = $600 - $110.4 = $489.60
Balance remaining = $5,520 - $489.60 = $5030.40
Hence, the balance outstanding at the end of month 2 is $5,030.40
what's 5 more than twice a number is 17 into an equation
Answer:
5+2x=17
Step-by-step explanation:
I hope this helps!!
Answer:
let the number be x
5+2x=17
if you use synthetic division for this polynomial: 3x^5-12x^4+12x^3+30x^2-39x-42. What would the answer be?
Answer : x^5 - 4x^4 +4x^3 + 10x^2 - 13x - 14
Explanation :
(3x^5-12x^4+12x^3+30x^2-39x-42)/3 = x^5 - 4x^4 +4x^3 + 10x^2 - 13x - 14
What is the slope and y-intercept of the graph? (write your answer in simplest form)
Slope:
y-intercept:
Answer:
Slope: 1/1.5
Y-intercept: -1
Step-by-step explanation:
Help me I want good grades i
slope for (-5,0) (5,-4)
Answer:
-2/5
Step-by-step explanation:
I did an assignment like this last week and got an 100
When you answer on a lot of posts anf now your phone is having a notification rave-
Haha! I know how that feels
