Answer:
El libro que Renzo está leyendo tiene 300 páginas.
Step-by-step explanation:
Dado que Renzo ha leído el 20 por ciento del libro de cuentos, en principio le queda leer el 80 por ciento de éste. Ahora bien, de las páginas restantes (es decir, de ese 80 por ciento) ha leído 1/4 parte. Por ende, ha leído un 20 por ciento adicional de dicho libro (80 /4 x 1 = 20). En conclusión, Renzo lleva leído un 40 por ciento del libro, con lo cual le resta leer un 60 por ciento, que está formado por 180 páginas. Para determinar cuántas páginas tiene el libro, entonces, hay que realizar el siguiente cálculo:
180 / 60 = 3 (valor del 1 por ciento del libro)
3 x 100 = 300 (valor del 100 por ciento del libro)
Por lo tanto, el libro que Renzo está leyendo posee 300 páginas.
what are the points on this website even for?
Answer:
To ask questions you need points.
Step-by-step explanation:
Answer:
They help you ask questions as it costs points to ask questions, and the more points you use on a question, the more points someone gets for answering it, meaning they are more likely to answer your question.
They also are used as a form of ranking users, based on how much time they spend on the site helping people and such.
The height of a tree at time t is given by h(t) = 2t + 3, where h represents the height in inches and t represents the number of months. Identify the independent and the dependent variables.
Answer:
Step-by-step explanation:
You see that 't' is the 'argument' or 'input' to h: h(t). It is always safe to assume that t is the independent variable and h is the depend
The probability that Stu buys a sandwich is 0.5.
The probability that Stu gets the bus is 0.7.
Assuming the events are independent, what is the probability that Stu buys a sandwich and gets the bus?
Answer:
probability that Stu buys a sandwich and gets the bus = 0.35
Step-by-step explanation:
Probability of success of two independent events is the product of the respective probabilities, i.e. the multiplication rule.
P(Sandwich) = P(S) = 0.5
P(Bus) = P(B) = 0.7
Assuming the events are independent,
probability that Stu buys a sandwich and gets the bus
= P(SB) = P(S)*P(B) = 0.5*0.7 = 0.35
Answer: 0.35
Step-by-step explanation:
First there is a 50% chance, or a 0.5 chance that Stu gets a sandwich. Then, ignoring the other .5, there is a .7 chance that he makes the bus. Thus, 1/2 of .7 is 0.35.
Hope it helps <3
How to solve the equation 4×3−15÷3×2+1
Answer:
3
Step-by-step explanation:
We use Order of Operations BPEMDAS.
Step 1: Multiply
12 - 15/3(2) + 1
Step 2: Divide
12 - 5(2) + 1
Step 3: Multiply
12 - 10 + 1
Step 4: Subtract
2 + 1
Step 5: Add
3
Answer: 3
Step-by-step explanation:
PEMDAS
P: No parenthesis
E: No exponents
M and D: 4x3 = 12(12-15÷3×2+1), 15÷3 = 5(12-5×2+1), 5*2 = 10(12-10+1)
A and S: 12-10 = 2(2+1), 2+1=3(3)
Write a polynomial f(x)that satisfies the given conditions,
Polynomial of lowest degree with zeros of - 4 (multiplety 1), 3 (multiplicly 3), and with f(0)= 216,
Answer:
[tex]\boxed{\sf \ \ \ -2(x+4)(x-3)^3 \ \ \ }[/tex]
Step-by-step explanation:
Hello,
let's note k a real, we can write the polynomial as
[tex]k(x-(-4))^1(x-3)^3=k(x+4)(x-3)^3[/tex]
and we know that f(0)=216 so
[tex]216=k(0+4)(0-3)^3=k*4*(-1)^3*3^3=-27*4*k=-108k\\\\<=> k=-\dfrac{216}{108}=-2[/tex]
So the solution is
[tex]-2(x+4)(x-3)^3[/tex]
hope this helps
can someone help me with this question, please?
Answer:
1080
Step-by-step explanation:
Multiply the value by 1440. Hope this helps!
Answer:
1080 minutes
Step-by-step explanation:
In a day there are 24 hrs so first we have to find 1 quarter of a day which will be;
24hrs ÷ 4 = 6hrs
The question says 3 quarters so you multiply 6hrs by 3
6hrs * 3 = 18hrs
Now will use proportion to answer the rest which is as follows.
If 1hr = 60 minutes,
then 18hrs = ? minutes
[tex]\frac{18}{1} * 60mins[/tex]
=1080 minutes.
Hope this will help.
Pattered sheets cost $0.50 each or packages of 60 for $19.99. If Tanesha needs 92 sheets, how much will she save if she buys 2 packages instead of paying individually for the sheets?
Answer:
$7.02
Step-by-step explanation:
Price of 92 sheets = 92 * $0.50 = $46
Price of 2 packages = 2 * $19.99 = $38.98
Savings = $46 - $38.98 = $7.02
Please help and be fast! WILL GIVE BRAINLIEST!
If f(x) = x - 3, which of the following is the inverse of f(x)?
O A. f-'(x) = x-3
O B. f-'(X) = x + 3
O c. f-'(X= 3x
O D. f-'(x) = 3 - x
Answer:
B. f^-1(x) = x+3
Step-by-step explanation:
Given the function f(x) = x-3, to get its inverse, the following steps mist be followed.
First we will make y = f(x)
y = x-3
Then we will make x the subject of the formula to have:
y+3 = x-3+3
y+3 = x
x = y+3
Finally, we will replace back y with x to have:
y = x + 3
f^-1(x) = x+3
This gives the inverse of the function.
Find the y-intercept of the parabola y = x2 – 8.
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Submit
Answer:
-8.
Step-by-step explanation:
You can get the y-intercept when you find the y-value when x = 0.
y = x^2 - 8
y = 0^2 - 8
y = 0 - 8
y = -8
So, the y-intercept is -8.
Hope this helps!
Answer:
y = -8, if x2 mean 2 times x.
y = -7, if x2 mean X^2
Step-by-step explanation:
Y-intercept mean x = 0.
Plug x = 0, into the parabola, you get the answer.
A bag contains orange, purple, and blue marbles. If a marble is selected at random from the bag, the probability it is orange is 0.2, the probability it is purple is 0.3, and the probability it is blue is 0.5. Which colour marble is most likely to be selected? Explain.
Answer:
blue marble
Step-by-step explanation:
Probability is how likely something is to happen. Between the three colors, blue has the greatest probability, meaning it will most likely be selected.
0.5 > 0.2
0.5 > 0.3
A rectangle has the sides: 7cm and 3cm. A square has the same perimeter as the rectangle. What is the side length if the square
Answer:
5
Step-by-step explanation:
Perimeter of the rectangle: 3+7+3+7=20
Square perimeter is same as rectangle, so square perimeter is also 20.
Side length is 20/4, which is 5
line plot
3.
A student builds unifix cube towers to represent the ages of the five children in her family. She places them in order from smallest to largest. She removes the shortest and tallest tower then removes the next shortest and tallest tower. The tower in the middle is remaining. This student has just found which average?
Mode
Mean
Range
Answer:
Mode
Step-by-step explanation:
The answer is Mode. Mode is basically a number or data item that appears most frequently in a data set. First lets see how we find Mode. To find the Mode in the data set, first the numbers or data items are placed in order. Then it is counted that how many times each number appears. A number or data item that appears most frequently is the mode.
So lets a student builds unifix cube towers to represent the ages of the five children as following:
3 1 2 2 4
Now the student first places them in order from smallest to largest
1 2 2 3 4
Now she removes the shortest and tallest tower. Shortest is 1 and tallest is having 4 cubes. After removal of shortest and tallest tower:
2 2 3
Then removes the next shortest and tallest tower. Now the shortest tower has 2 cubes and tallest has 3 cubes. After removal of shortest and tallest tower:
2
The tower in the middle is remaining i.e. 2
So as you can see the most frequently occurring from 1 2 2 3 4 is also 2 as it appears twice. So that means student has found Mode. Although the same method is used to find the median too but here the most appropriate option is Mode. Mean is the way to find the average but it is computed by adding the numbers in the data set with the total size of data. So its not an appropriate option because the method that the student followed does not match with the method to compute mean. Also range is not a valid option because range finds the difference of the largest and smallest number and the method that student used is different from the method to compute range. If we compute the difference between largest and smallest number we get 3.
One spring, a group of students measured rainfall totals at their school. This
chart shows how many inches of rain the students measured each month.
How many more inches did it rain in May than in April?
MONTH
March 5.7
April6.3
May13.8
Subtract the values for May and April
13.8 - 6.3 = 7.5
The two cones are similar. (a) Write down the value of l. (b) When full, the larger cone contains 172 cm3 of water. How much water does the smaller cone contain when it isfull?
Answer/Step-by-step explanation:
a. Since both cones, as shown in the figure attached below, are similar, 11/8 = l/4
Cross multiply to find l
4*11 = 8*l
44 = 8l
l = 44/8
l = 5.5cm
b. Given the slant height and diameter of cone, volume of cone can be calculated using the formula ⅓πr²*√(l² - r²)
Where, r = diameter ÷ 2 = 4/2 = 2cm
l = 5.5cm
Volume of smaller cone = ⅓*3.142*2²*√(5.5² - 2²)
= ⅓*3.142*4*√30.25 - 4)
= ⅓*12.568*√26.25
= ⅓*12.568*5.124
= 64.40/3
Volume of small cone ≈ 21.5 cm³
Write an inequality and show on a number line all numbers:from (–3) to 2 exclusive.
Answer:
[tex]-3 < x < 2[/tex]
Step-by-step explanation:
Given:
Range: -3 to 2
Required:
- Write the inequality
- Represent on a number line
Let the variable be represented by x
The question says -3 and 2 are exclusive of x;
This implies that, -3 is less than x [tex](i.e.\ -3 < x)[/tex] and at the same time x is less than 2 [tex](i.e.\ x < 2)[/tex]
Write out the two inequalities
[tex]-3 < x[/tex] and [tex]x < 2[/tex]
Combine both inequalities
[tex]-3 < x < 2[/tex]
See attachment for number line
Notice that the circle on -3 and 2 are opened
This implies that -3 and 2 are exclusive of the inequality;
Which situation is most likely to show a constant rate of change?
Answer:
The answer is A
Step-by-step explanation:
Find the measure of each angle: Complementary angles with measures (5x)° and (4x−18)°
Answer:
60° and 30°
Step-by-step explanation:
Since they are complementary, the 2 equations add up to 90°
5x + 4x - 18 = 90
9x - 18 = 90
9x = 108
x = 12
Simply plug in x to find our angles:
5(12) = 60°
4(12) - 18 = 48 - 18 = 30°
Answer:
5x = 60°, 4x - 18 = 30°
Step-by-step explanation:
Sum of complementary angles is 90°.
5x + 4x - 18 = 90
9x = 90+18
9x = 108
x = 12
5x = 5* 12= 60°
4x - 18 = 4*12 - 18 = 30°
Hey loves!!! plz help!!!
Answer:
k Nishant
Step-by-step explanation:
there is no comman angle but their is common side that is AC
What is the slope of the line through (-2,-6)and (2,2)
Answer:
Y2-y1/x2-x1
=2-(-6)/2-(-2)
=8/4
=2
Step-by-step explanation:
Given two points of a line to find the slope we use the formula; y2-y1/x2-x1 Hence the answer above.
I will give brainiest
Answer:
Amount the watch normally costs: w
Amount if the discount: 0.3w
Percent decrease of the discount, as a decimal: 0.3
Percent of the normal cost that Chad paid, as a decimal: 0.7
The domain for f(x) and g(x) is the set of all real numbers.
Let f(x) = 3x + 5 and g(x) = x2.
Find (f - g)(x).
A. x2 – 3x - 5
B. -X2 + 3x + 5
C. –3x² – 5x2
D. 3x3 - 5x2
Answer:
Option B
Step-by-step explanation:
=> [tex]f(x) = 3x+5[/tex]
=> [tex]g(x) = x^2[/tex]
Subtracting both
=> [tex](f-g)(x) = 3x+5-x^2[/tex]
Assembling
=> [tex](f-g)(x) = -x^2+3x+5[/tex]
Pleaaaaase help!!!!
Answer:
see below
Step-by-step explanation:
sqrt(20)
sqrt(4*5)
We know that sqrt(ab) = sqrt(a) sqrt(b)
sqrt(4) sqrt(5)
2 sqrt(5)
Answer:
We can factor down 20 with it's greatest prime GCF, which is 5. We get a 4. When we factor that down the same way, we get 2. If we repeat that process, we get 5, 2, and 2, which turns into [tex]2\sqrt{5}[/tex].
a man bought second hand bicycle for rs 1120 and spend rs160 to repair it. he sold it for rs1344, find his profit or loss percent
Answer:
5 %Solution,
Total Cost price (CP) = Rs 1120 + Rs 160
= Rs 1280
Selling Price (SP) = Rs 1344
Here,
SP > CP , so he made profit.
Amount of profit = SP - CP
= Rs 1344 - Rs 1280
= Rs 64
Now, finding the profit percent,
Profit %=[tex] \frac{profit \: }{cp} \times 100 \: percent[/tex]
[tex] \frac{64}{1280} \times 100 \: percent[/tex]
[tex]5 \: percent[/tex]
Profit percent = 5%
Hope this helps...
Good luck on your assignment...
Is Triangle ABC cong Triangle DEF? If so name the postulate that applies
Answer:
D. Congruent - SAS
Step-by-step explanation:
Two sides and the included angle of a triangle are congruent to the corresponding parts of another triangle.
The triangles are congruent by SAS.
Which is the best example of a number written in scientific notation?
Answer:
It would be changing by which a person thinks.
But, I will pick 569.124.
It would be 5.69124e2. (or 5.6912 x 10^3)
Answer:
569.124
Step-by-step explanation:
Quadrilateral rust has a vertex (2,4). What are the coordinates of r' after a dilation of scale factor 3, centered at the origin, followed by translation (x,y) to (x+4,y)
Answer:
The coordinates of r' are x = 10 and y = 12.
Step-by-step explanation:
The vertex experiments two operations: Dilation and translation, whose definitions are presented herein:
Dilation with respect to origin
[tex](x',y') = (0,0) + 3\cdot (x,y)[/tex], [tex]\forall \,x,y \in \mathbb{R}[/tex]
Translation
[tex](x',y') =(x+4,y)[/tex], [tex]\forall\,x,y\in \mathbb{R}[/tex]
If [tex]x = 2[/tex] and [tex]y = 4[/tex], then:
1) [tex](2,4)[/tex] Given.
2) [tex](0,0) + 3\cdot (2,4)[/tex] Dilation with respect to origin.
3) [tex](6,12)[/tex] Vectorial sum and scalar multiplication.
4) [tex](6+4,12)[/tex] Translation.
5) [tex](10,12)[/tex] Vectorial sum. Result.
The coordinates of r' are x = 10 and y = 12.
Answer:
10,12 is the answer
Step-by-step explanation:
I just did it on a p e x
Multiply. 4.9 0.3 plz i need epain how to do it
Answer:
1.47
Step-by-step explanation:
Use the multiplication method.
Answer:
Hello!
_______________________-
4.9 x 0.3 = 1.47
Step-by-step explanation: Multiply 4.9 by 0.3 then you get 1.47.
Hope this helped you!
Question 1) While traveling to Europe, Phelan exchanged 250 US dollars for euros. He spent 150 euros on his trip. After returning to the United States he converts his money back to US dollars. How much of the original 250 US dollars does Phelan now have? Round to the nearest cent. 1 European euro = 1.3687 US dollars Question 2) To fit between two windows, the width of a bookshelf must be no greater than Six and one half feet. Mrs. Aguilar purchases a bookshelf that is 77 inches wide. Which statement describes the relationship between the width of the bookshelf and the distance between the windows? Question 3) Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate? 1 mile 1,609 meters.
What is this (2⋅3) ^2 −5^2 = I don't know what the dot means I think it means multiplication I got 11 am I right
Answer:
11
Step-by-step explanation:
Step 1: Parenthesis
6² - 5²
Step 2: Exponents
36 - 25
Step 3: Subtract
11
The dot is multiplication.
Answer:
11 is right, yes.
Step-by-step explanation:
The dot does mean multiplication. All you have to do is multiply 2*3 first, then do the powers, and you get 36-25, which is indeed 11.