Answer:
No
Step-by-step explanation:
Using the given lengths if we say this is a right triangle then 8 would be length of hypotenuse
From the Pythagorean theorem
8^2 = 5^2 + 7^2
64 = 25 + 49
64 = 74 is not a correct equation so the triangle is not a right triangle for the given lengths
David made an error when determining the product of (–2.5)(–8.3). Step 1: (–2.5)(–8.3) = (–8.3)(–2.5) Step 2: = (–8.3)(–2) + (–8.3)(–0.5) Step 3: = (–16.6) + (–4.15) Step 4: = –20.75 In which step did David make his first error?
Answer:
David make his first error at Step 3
Step-by-step explanation:
We need to determine the error David made when finding the product of (-2.5)(-8.3)
He did the following steps
Step 1: (–2.5)(–8.3) = (–8.3)(–2.5)
Step 2: = (–8.3)(–2) + (–8.3)(–0.5)
Step 3: = (–16.6) + (–4.15)
Step 4: = –20.75
David made a mistake in Step 3
When we multiply (-1) with (-1) we get + instead of - sign. The correct step 3 would be:
Step 3: =(16.6)(4.15)
Step 4: =20.75
So, David make his first error at Step 3
00:0
A toy shop purchases 125 identical stuffiedi animals for a total cost of $312.50 and sells them for $7 each
What is the percent markup?
%
Answer:
They marked it up 30 cents
Step-by-step explanation:
you do 312.50 divided by 125. Then you get 2.50. Then you multiply 7 times 125 then you get 2.80. Finally you do 2.80 minus 2.50 which equals 30 cents.
What is B^y=x in logarithmic form?
Answer:
The logarithmic function for x = 2y is written as y = log2 x or f(x) = log2 x. The number 2 is still called the base. In general, y = logb x is read, “y equals log to the base b of x,” or more simply, “y equals log base b of x.” As with exponential functions, b > 0 and b ≠ 1
Step-by-step explanation:
ttygytex x so r5f3ygthttg
An investment portfolio offers a plan that will increase your holdings 30%
half the time, and lose you 20% the other half. Is this a worthwhile
investment for 1) one year, and 2) for the long term?
Answer:
It is a worthwhile investment for both one year and for the long term.
Step-by-step explanation:
While the investment will obtain in the first half of the year gains of 30%, and in the second half of the year losses by 20%, at the end of the year the benefit obtained by the investment will be greater than 0%. Therefore, both within a year and in the long term, it is a viable and favorable investment, since it will yield positive results at the end of the cycle.
So, for example, an initial investment of $ 100 would operate in the following way:
-First half of the year: 100 x 1.3 = 130
-Second half of the year: 130 - (130 x 0.2) = 104
Thus, at the end of the year a profit of 4% of the initial investment will be obtained.
Charlie's utility function is U(A, B) = AB, where A and B are the numbers of apples and bananas, respectively, that he consumes. When Charlie is consuming 20 apples and 80 bananas, if we put apples on the horizontal axis and bananas on the vertical axis, the slope of his indifference curve at his current consumption is:____________a. -8.b. -1/4.c. -20.d. -4.e. -1/8.
Answer:
D. -4
Step-by-step explanation:
The formula for calculating the slope of his indifference curve at his current consumption is expressed as:
M = -∆y/∆x
∆y is the change in y axis
∆x is the change in x axis
Since apples are put in the horizontal axis, ∆x = 20
Since banana are on the y axis, then ∆y = 80
Substituting the given values into the formula
M = -80/20
M = -8/2
M = -4
Hence the slope of his indifference curve at his current consumption is -4.
Option D is correct.
Gcf and distributive property 60-50
Answer:
bvbhv hacvhkbqwdvwcqbkvwlpbjqcs[lvdcsbhk fveo fveqo fbveq wveqkneqv veq fko nwvd vd
Step-by-step explanation:
Answer:
60= 3(2) and 5(2)
50= 5 and 2(5)
Step-by-step explanation:
whats inequalities ?
Answer:
An equation looks something like this: 4x2=8
In an equation each value on the opposite side of the equal sign is equal unless its unsolved and u need to solve it.
In an inequality, a <, >, ≥ or ≤ separates 2 values that are unequal. < is a less than sign, > is a greater than sign and so on and so forth. An inequality gives all possible answers for an equation. For example 3x+2≤ 8 is showing us that 3x+2 is any value below or equal to 8. ≤ is a less than OR equal too sign.
in the equation 4x-5≤15 the inequality is showing us that 4x-5 is every possible value below or equal to 20. So an answer could be 19, 18, -5, 7 and basically every number below or equal to 20.
Step-by-step explanation:
The fire department has seen an increase in smoke detector sales since 2015. In 2015,
they sold 350 detectors which is up from the previous year by 105%. How many did they
sell in the previous year?
Answer:
Step-by-step explanation:
Given the amount of detectors sold in the current year = 350
percent increment = 105%
To get the amount sold the previous year, we will use the expression;
(105% of x) + x = 350
1.05x = 350 + x
1.05x + x = 350
2.05x = 350
x = 350/2.05
x = 170.7
Hence the amount sold the previous year was 170.7 detectors
Five country music bands and 3 rock bands are signed up to perform at an all-day festival. How many different orders can the bands play in if the following conditions apply?
(a) there are no restrictions on the order
(b) all the bands of each type must perform in a row
Answer: A) 40320
Step-by-step explanation:
Jenna’s Mother is shopping for energy drinks and 12 ounce bottles for Jenna
soccer team. Store a sells a case of 18 bottles for $10
Answer:If we have to find out how much ounces are in a case the answer is 216 ounces because I don’t know the question.
Step-by-step explanation:
40 + (52 – 7) - 4 in algebra
help would be really nice, this is timed.
solve the equation in the image below
Answer:
below
Step-by-step explanation:
the 8 is basically x sooooo
f (8) = 8+11
f(x) = 19
In a two-factor experiment with 2 levels of factor A and 2 levels of factor B, three of the treatment means are essentially identical and one is substantially different from the others. What result(s) would be produced by this pattern of treatment means?a. a main effect for factor Ab. a main effect for factor Bc. an interaction between A and Bd. The pattern would produce main effects for both A and B, and an interaction
Answer:
The pattern would produce main effects for both A and B, and an interaction
Step-by-step explanation:
When there is a two factor experiment having two types of level of factor A and the two level of factor B also the three of the treatment that are similar and the one is totally distinct from the others
So here the treatment pattern would be the pattern in which the important and main impact would be generated for both A and B and then an interaction
hence, the last option is correct
which model represents a fraction greater than 3/5?
Answer:
The last one is your answer :))
Step-by-step explanation:
Answer:
Blue circle.
Step-by-step explanation:
I hope it helps, if my answer is correct, please give BRAINLEST!
What is the range of the function represented by the table?
A 2-column table with 5 rows. Column 1 is labeled x with entries 2, 4, 6, 8, 10. Column 2 is labeled y with entries 2.5, 5.0, 7.5, 10.0, 12.5.
{2, 4, 6, 8, 10}
{2.5, 5.0, 7.5, 10.0, 12.5}
{2, 2.5, 4, 5.0, 6, 7.5, 8, 10, 12.5}
{0.0, 0.5}
Answer:
{2.3, 5.0, 7.5, 10.0, 12.5} Option b
Step-by-step explanation:
Domain is the input values and the range is the output values. The y values.
Answer:
b
Step-by-step explanation:
Which set of side lengths cannot make a triangle?
1.) 3 cm, 3 cm, 6 cm
2.) 3 cm, 4 cm, 5 cm
3.) 3 cm, 5 cm, 7 cm
4.) 3 cm, 6 cm, 6 cm
Answer:
Option "A" is correct answer to the following question.
Step-by-step explanation:
We know that, in triangle sum of two smaller lines ≥ largest side
So,
3 cm + 3 cm < 6 cm [Not correct to the given situation.]
3 cm + 4 cm > 5 cm [Correct]
3 cm + 5 cm > 7 cm [Correct]
3 cm + 6 cm > 6 cm [Correct]
Answer:
A The one that says 3 cm, 3 cm, 6 cm.
Step-by-step explanation:
What is the length of AC?
Round to one decimal place.
4.3
D
?
4.1
8
A
B
5.3
Answer:
5.5
Step-by-step explanation: :D
Last weekend, nina mowed lawns and received $60. This weekend she mowed 6 lawns and received $90. what is the constant of proportionality?
Answer:
$15
Step-by-step explanation:
It is given that,
Last weekend, Nina mowed 4 lawns and received $60. This weekend she mowed 6 lawns and received $90.
We need to find the constant of proportionality.
First we can find the money received when she mowed 1 lawn for last weekend.
4 lawns = $60
1 lawn = $15
Then, we will find the money received when she mowed 1 lawn for this weekend.
6 lawns = $90
1 lawn = $15
Hence, the constant of proportionalityis $15.
An adult elephant that is 10 ft tall casts a shadow that is 15 ft long. Find the length of the shadow that is a 8 ft telephone booth casts.
A. 7ft
B. 12 ft
C. 23 ft
D. 5 ft
Answer:
12 feet long bc of cross multiplying then dividing the product by 10 which gives you 12!
Please help me it’s due at 11:59pm today please help me will mark the brainiest please
Answer:
x=24
Step-by-step explanation:
2/3x+7=23
2/3x=16
x=24
PLEASE HELP!!!!!!!
A sea otter is underwater. Its position below sea level changes by −73.5 ft. in 3 minutes. What is the average change in the otter's position each minute?
Is the otter going deeper or toward the surface of the water? Show your work. Explain your reasoning.
Answer:
24.5
Step-by-step explanation:
❤❤❤❤❤❤❤
plz give brainliest
Find an explicit description of Nul A by listing vectors that span the null space.
A=[ 10 3 1 5 4 0 −2 ]
Answer:
The answer is "[tex]\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] , \left[\begin{array}{c}-6&2&0&1\\\end{array}\right][/tex]"
Step-by-step explanation:
Given value:
[tex]A= \left[\begin{array}{cccc}1&3&5&0\\0&1&4&-2\\\end{array}\right][/tex]
First you find the general Ax = 0 solution for the free variables.
[tex][A \ \ \ 0]= \left[\begin{array}{cccc}1&3&5&0\\0&1&4&-2\\\end{array}\right]\\\\ R_1\to R_1-3R_2\\\\= \left[\begin{array}{ccccc}1&0&-7&6&0\\0&1&4&-2&0\\\end{array}\right][/tex]
Its general solution is:
[tex]x_1 = 7x_3-6x_4,\ \ x_2=-4x_3+2x_4 \ \ with\ \ x_3, and \ x_4\ free. \ So,[/tex]
[tex]x=\left[\begin{array}{c}x_1&x_2&x_3&x_4\\\end{array}\right] = x_3\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] + x_4\left[\begin{array}{c}-6&2&0&1\\\end{array}\right][/tex]
Null A is: [tex]{\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] , \left[\begin{array}{c}-6&2&0&1\\\end{array}\right] }[/tex]
whats the y-intercept of y= 1/3 x-1y
Answer:
(0, 0)
Reasoning:
Y-intercept means set x to 0 and solve, therefore;
[tex]y=1/3(0) -1y[/tex]
[tex]y=0-1y[/tex]
[tex]2y=0[/tex]
[tex]y=0/2=0[/tex]
Thus, the y-intercept is (0,0)
I hope this helps you and good luck!
a. Identify at least three cases in your daily life/work where the analytics could be applied.
b. Choose one of the cases and describe how you will approach the problem. For example, you can start from where/how you collect data, how to use the data, what kind of problem can be solved, and etc.
Explanation:
Remember, the term analytics (or data analytics) refers to the act of carefully examining raw data in other to observe if there are any trends.
a) The following are three cases in our daily life/work where analytics could be applied:
analyzing changes in cell phone charges based on call durationanalyzing changes in our sleeping pattern based on hours spent on electronic gadgetsanalyzing changes in train ticket sales based on the time of the day.b) For example, to analyze changes in my sleeping patterns based on hours spent on electronic gadgets, I need to first know
how many hours of sleep do I have every day in a particular period of time,how many hours have I spent on electronic gadgets daily for a period of time,Next, I need to answer based on the data; Is the amount of hours I sleep lower than expected? or Do I spend more time on electronic gadgets than sleep?Find the unit rate and slope of the graph (ignore what I put down)
Answer:
slope: 5/7
0.714 mile per hour
Step-by-step explanation:
slope: find the point where the line is right on the line graph, put y/x which is 10/14 make the fraction smaller which is 10/14 = 5/7(I divide the denominator and nominator by 2)
Mile per hour: 5/7 cross multiply with x/1, make into an equation:
7x=5 x 1
7x = 5
x = 0.714
Juile sorted 52 sports cards. She divided into 5 equal groups. Juilie had 12 cards left over. How many cards were in each group?
Answer:
A standard deck of cards has 52 cards divided into 4 suits, each of which has 13 cards.
Step-by-step explanation:
Hope this helps!
Answer:
8
Step-by-step explanation:
52-12=40
40/5=8
Do you guys know this.
Answer:
0.77
Step-by-step explanation:
You solve the inner first, then move to the outer.
Plug in x = 20 for g(x) = [tex]\frac{2x+2}{x-6}[/tex]. It should give you [tex]\frac{42}{14}[/tex], which simplifies to 3.
You then need to solve f(x) with the given value from g(x), which is 3.
Plug in x = 3 for the equation [tex]\sqrt{0.4x^2-x}[/tex], and you should get [tex]\sqrt{0.6}[/tex].
The answer is roughly 0.77.
Please answer the 2 questions from the questions on top... (8TH GRADE MATH?!)
Answer:
6. should be C and 7. should be A
To compare investments, analysts convert monthly, quarterly, semiannual rates to annual rates. If an investment of $100,000 is invested at 4.5% twice a year, compounded semiannually, the growth can be modeled by the equation A(t) = 100,000(1.045)2t. What is the equivalent annual growth rate for this investment (rounded to the nearest hundredth of a percent) and what is it worth (rounded to the nearest thousand dollar) after 15 years?
2.23% and $139,000
15.01% and $194,000
9.21% and $375,000
9.01% and $364,000
(a) At Garcia's Bike Rentals, it costs $36 to rent a bike for 9 hours.
How many hours of bike use does a customer get per dollar?
hours per dollar
Answer:
15 mins per dollar
Step-by-step explanation:
how many minutes are their in 9 hours?
540 minutes
so, we divise 540 to 36
this results to 15.
this means, you get 15mins per dollar