Answer:
24 - 27 (answer would be -3)
Step-by-step explanation:
Noah wanted to check his solution of x = 14/5 for the equation 1/2 (7x - 6) = 6x - 10 substituting 14/5 for x, he writes the following
Find the incorrect step in Noah's work and explain why it is incorrect
PLEASE HELP ME
Answer:
Line 4 is incorrect. Noah applied the distributive rule incorrectly.
Step-by-step explanation:
The incorrect step in Noah's work is fourth step that is :
[tex]7.14-6=12.14-20[/tex]
We have equation [tex]\frac{1}{2} (7x - 6) = 6x - 10[/tex]
Substituting [tex]x=\frac{14}{5}[/tex] in the given equation
[tex]\frac{1}{2} (7(\frac{14}{5} ) - 6) = 6((\frac{14}{5} ) - 10\\ (7(\frac{14}{5} ) - 6) = 12((\frac{14}{5} ) - 20\\ 5(7(\frac{14}{5} ) - 6) = 5(12((\frac{14}{5} ) - 20)\\7.14-5.6=12.14-5.20\\98-30=168-100\\68=68[/tex]
So, here in the given solution we observe that the fourth step is incorrect.
Since 5 is not multiplied to 6 and 20.
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In APQR, PR is extended through point R to point S, mZQRS = (7x+8)°,
mZRPQ = (x +12)', and mZPQR= (3x + 20°. Find mZRPQ.
Answer:
Wait what?
Step-by-step explanation:
Answer:
I'm sorry but I don't know
Step-by-step explanation:
I am sorry I needed the points.
Find a linear equation whose graph is the straight line with the given property.
Through (0.5, -2.25) and (1, -5.25)
Answer:
Step-by-step explanation:
-5.25+2.25 - 3
1-0.5 = 0.5
=-6 =m
y=-6x
Which correctly renames
7
8
and
5
6
using a common denominator?
A.
42
48
and
40
48
B.
42
48
and
30
48
C.
14
16
and
15
18
D.
28
24
and
20
24
Answer:
a
Step-by-step explanation:
What is the domain of the function y=x-1?
0-1
O 0
O 1
Answer:
Option 1: negative infinity to infinity
Step-by-step explanation:
negative infinity to infinity
what is -5x^2+7x+1 from 8x^2+x-10
Answer:
13x^2 - 6x -11
Step-by-step explanation:
I NEED HELP WITH THIS PLS I WILL MARK YOU AS BRAINLIEST PLS AND TY
Answer:
1 no 2 and 3 yes
Step-by-step explanation:
do the vertical line test
if the line going vertical hits the line twice then its not a function
1 is not a function
2 is and 3 is a function
Write a linear expression in simplest form to represent the perimeter of the trapezoid below. Then find the perimeter if the value of x is 6 yards. (7x + 3) yd (6x + 3) yd (6x + 3) yd (5x) yd
Answer:
(24x+9)yd
153yd
Step-by-step explanation:
The perimeter is the sum of all the sides, so put all the sides together.
(7x+3)+(6x+3)+(6x+3)+(5x)
7x+6x+6x+5x+3+3+3
24x+9
IF x=6:
(24(6)+9)yd
(144+9)yd
153yd
Can somebody help me find the mean,median, and mode
Answer:
so for the mean u add all the numbers on there and then divide it by 5 since there are 5 numbers on there so 78+84+100+78+81=421 now we divide 421 by 5 so 421÷5= 84!
now the median would be 100? and the mode is 78 since 78 is the number that showed the most!
Use the Pythagorean Theorem to find the length of the leg in the triangle shown below. 3, 5
Step-by-step explanation:
use the pythagorean theorem to find the length of the leg in the triangle below
Which of the following is a solution of y - x < -3?
(6, 2)
(2, 6)
(2, -1)
Answer:
(2, -1)
Step-by-step explanation:
I just plugged (y-x<-3) into desmos (if you haven't used desmos, use it. Its a lifesaver) and the only coordinate pair that was part of the line, is (2,-1)
Hope that helps!
Answer:
(6,2)
coz if y=2 & x=6
then substitute in to the equation
and we get 2-6=-4
so -4 is less than -3; in number line. thats it!!!!!
Pedro uses shapes to make a funny animal. Which best tells about the
shapes in Pedro's animal?
Answer:
The sides of all the shapes are straight
Step-by-step explanation:
Pedro animal has the shape of a horse. The animal is made up of different shapes, we can see that the shapes Pedro animal is made up of consist of two triangles, three rectangles and a hexagon.
All this shapes mentioned above (triangle, rectangle and hexagon) that are used in making this animal have sides with straight edges. Therefore the sides of all the shapes are straight.
A cliff diver jumps from a height of 58 feet with an initial velocity of 4 feet per second.
Answer:
The answer is 6 seconds
What is the value today of a $12,000 cash flow expected to be received seventeen years from now based on an annual interest rate of 7%?
0 $3,799
O $5,888
0 $4,749
O $37,906
Answer:To find the present value of a cash flow expected to be paid or received in the future, you will ??? the future value cash flow by (1 + I)NN.
-divide
-multiply
What is the value today of a $12,000 cash flow expected to be received 17 years from now based on an annual interest rate of 7%?
-$3,799
-$3,039
-$37,906
-$4,749
Your broker called earlier today and offered you the opportunity to invest in a security. As a friend, she suggested that you compare the current, or present value, cost of the security and the discounted value of its expected future cash flows before deciding whether or not to invest. The decision rule that should be used to decide whether or not to invest should be:
-Everything else being equal, you should invest if the current cost of the security is greater than the present value of the security’s expected future cash flows.
-Everything else being equal, you should invest if the present value of the security’s expected future cash flows is less than the current cost of the security.
-Everything else being equal, you should invest if the discounted value of the security’s expected future cash flows is greater than or equal to the current cost of the security.
Now that you’ve thought about the decision rule that should be applied to your decision, apply it to the following security offered by your broker:
Jing Associates, LLC, a large law firm in Denver, is building a new office complex. To pay for the construction, Jing Associates is selling a security that will pay the investor the lump sum of $23,000 in two years. The current market price of the security is $14,245.
Assuming that you can earn an annual return of 8.50% on your next most attractive investment, how much is the security worth to you today?
-$16,606
-$24,421
-$19,537
From strictly a financial perspective, should you invest in the Jing security?
-Yes
-No
Why or why not?
-Because the discounted value of the security’s future cash flows is greater than the cost of the security.
-Because the cost of the security is greater than the discounted value of the security’s future cash flows.
Step-by-step explanation:
there are 650 fruits in a fruit stand, which 208 are mangosteen. how many percent are mangoesteen?
Answer:
32%
Step-by-step explanation:
Given data
Total number of fruits = 650
number of mangosteen= 208
The pecentage of mangosteen is
= 208/650*100
=0.32*100
=32%
Hence the perncetage of mangosteen is 32%
A production process is known to produce a particular item in such a way that 5 percent of these are defective. If two items are randomly selected as they come off the production line, what is the probability that both are defective (assuming that they are independent)
Answer:
0.0025 = 0.25% probability that both are defective
Step-by-step explanation:
For each item, there are only two possible outcomes. Either they are defective, or they are not. Items are independent of each other. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
5 percent of these are defective.
This means that [tex]p = 0.05[/tex]
If two items are randomly selected as they come off the production line, what is the probability that both are defective
This is P(X = 2) when n = 2. So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{2,2}.(0.05)^{2}.(0.95)^{0} = 0.0025[/tex]
0.0025 = 0.25% probability that both are defective
What is equivalent to 2/3?
Answer:
2/3 = 2×4 / 3×4 = 8/12 which is an equivalent fraction of 2/3.
Step-by-step explanation:
Equivalent fraction of a given fraction is got by multiplying or dividing its numerator and denominator by the same whole number.
...............??..?.?.?.?.?.??..??...??..?.??...??..?.?.? a
Answer:
Step-by-step explanation:
2+2=4
Which is the equation of a line parallel to the line with the equation: Y= -3x + 5
A. Y= -3x -7
B. Y= 3x + 2
C. y= -1/3x + 6
D. Y= 1/3x - 1/2
The sum of two numbers is 240. If one number is twice the other number, find the two numbers?
Answer:
160 and 80
Step-by-step explanation:
Answer:
60 and 120
Step-by-step explanation:
60*2=120
120+120=240
What is the value of x in the equation 1/5x - 2/3y = 30, when y = 15?
Answer:
x = (-150)/49
Step-by-step explanation:
Solve for x:
49 x + 150 = 0
Hint: | Isolate terms with x to the left hand side.
Subtract 150 from both sides:
49 x + (150 - 150) = -150
Hint: | Look for the difference of two identical terms.
150 - 150 = 0:
49 x = -150
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of 49 x = -150 by 49:
(49 x)/49 = (-150)/49
Hint: | Any nonzero number divided by itself is one.
49/49 = 1:
Answer: x = (-150)/49
Tim and Joey share a 20-ounce box of cereal. By the end of the week, Tim has eaten 3/10 of the box, and Joey has eaten 3/5 of the box of cereal. How many ounces are left in the box?
Answer:
1/10
of the box is left
so 2 ounces are left
Step-by-step explanation:
find the value of x in the equation below. 18 = x - 10
Answer: x= 28
Step-by-step explanation:
18=28-10
18=18
my friend needs help with this can someone help
Answer:Sorry
Step-by-step explanation:
Hi would help but i dont know and im not in collage sorry.
Jeremy swims 10 laps in 15 minutes. How many laps is that per minute?
The number of laps per minute is given by equation A = 2/3 laps per minute
What do you mean by an Equation?Equations are statements in mathematics that have two algebraic expressions on either side of the equals (=) sign.
It displays the similarity of the connections between the phrases on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are examples of the parts of an equation. When creating an equation, the "=" symbol and terms on both sides are necessary.
Given data ,
Let the number of laps per minute be represented as A
Now , the value of A is
The total number of laps = 10 laps
The total time for 10 laps = 15 minutes
So , the number of laps per minute = number of laps / total time for 10 laps
On simplifying the equation , we get
The number of laps per minute A = 10 / 15
The number of laps per minute A = 2/3 laps per minute
Hence , the number of laps per minute is ( 2/3 ) laps
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what’s the answer to 5y-4
Answer:
y = 0.8
Step-by-step explanation:
help i don't understand plz help
Answer:
naruto
Step-by-step explanation:
rasengan
Simplify Fourth root of 196
Answer:
Exact Form:
√14
Decimal Form:
3.74165738
Step-by-step explanation:
which of these statement is true about this graph
Answer:
Step-by-step explanation:
C
Answer:
the graph is nonlinear because its not touching the 0
f(x) = 4+9x, find f(-3)
Answer:
R3EWS.
Step-by-step explanation: