Răspuns:
1
Explicație pas cu pas:
Fie numărul = x
x + 4 = e - - (1)
e * 4 = f - - - (2)
Ecuația 2 - 4 împărțită la 4 = 4
(f - 4) / 4 = 4
Crucea se înmulțește
f - 4 = 16
f = 16 + 4
f = 20
Rezultatul 1 împărțit la 4 este egal cu 4
Prin urmare,
e = f / 4
f = 20
e = 20/4
e = 5
De la (1)
x + 4 = e
x + 4 = 5
x = 5 - 4
x = 1
Answer:
Step-by-step explanation:
[tex]\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]Assume that there are two pairs of congruent triangles in the diagram
AROB = APTA
O True
O False
Find the exact area of the surface obtained by rotating the curve about the x-axis. x = 1 3 (y2 + 2)3/2, 3 ≤ y ≤ 4
Answer:
21π/2
Step-by-step explanation:
94.55π is the area of the required surface.
What is the exact area of a surface obtained by rotating the curve y=f(x), [tex]x_1\leq x\leq x_2[/tex] about the x-axis?[tex]S=\int\limits^{x_1}_{x_2} {2\pi f(x)\sqrt{1+f'(x)^2} \, dx[/tex]
is the exact area of a surface obtained by rotating the curve y=f(x), [tex]x_1\leq x\leq x_2[/tex] about the x-axis
How to solve the problem?Given,
[tex]x=\frac{1}{3}(y^2+2)^{\frac{3}{2}}[/tex]
[tex]\implies (3x)^\frac{2}{3}=y^2+2\\\implies y^2=(3x)^\frac{2}{3}-2[/tex]
[tex]\implies y=\sqrt{(3x)^\frac{2}{3}-2}[/tex]
Let
[tex]y=\sqrt{(3x)^\frac{2}{3}-2}=f(x)[/tex]
Now, the range of y is given 3≤y≤4
hence, the range of x is [tex](\frac{1}{3}(3^2+2)^{\frac{3}{2}}[/tex],[tex]\frac{1}{3}(4^2+2)^{\frac{3}{2}})[/tex]=(12.16,25.46).
So, [tex]S=\int\limits^{25.46}_{12.16} {2\pi f(x)\sqrt{1+f'(x)^2} dx\\\\=[\frac{\pi}{2}(3x)^{\frac{4}{3}}-\pi (3x)^{\frac{2}{3}}]^{25.46}_{12.16}\\=101.63\pi - 6.99 \pi \\= 94.55 \pi[/tex]
is the area of the required surface.
Hence, 94.55π is the area of the required surface.
Learn more about the area of surface- brainly.com/question/24126051
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7.Which equation is a quadratic model for the data set?
A) y=1.1556x^1.9375
B) y=11.6018*1.2207^x
C) y=20.9330x-93.8918
D) y=1.2246x^2-5.0511x+24.288-
The quadratic model for the data set is y = 1.2246x² - 5.0511x + 24.288
A polynomial is an expression consisting of the operations of addition, subtraction, multiplication of variables.
Polynomials are classified based on degree as linear, quadratic, cubic etc.
The standard form of polynomial (of degree 2) is:
y = ax² + bx + c
The quadratic model for the data set is y = 1.2246x² - 5.0511x + 24.288
Find out more on polynomial at: brainly.com/question/2833285
1) Greaters sold 30 milkshakes last week. 20%. of the milkshakes had whipped cream on them. How many shakes had whipped cream? Answer: I
Answer:
6
plz vote me brainliest
Step-by-step explanation:
PLEASE HELP (ASSIGNMENT DUE IN 20 MINUTES)
Answer:
11 widgets
Step-by-step explanation:
544.50/4.5 = 121
square root 121 = 11
2,4000,000 in standard form
Answer:
24 million
Step-by-step explanation:
24,000,000 if you put it porperly
The units are, Unit, Tens, Hundreds, Thousand, Ten-Thousand, Hundred-Thousand, Million, Ten million, Hundred million Billion and so on
Use synthetic division to solve (x3 + 1) = (x - 1). What is the quotient?
x² + x + 1 + 1 2 3
x2-x+1
x2+x+1+2
x3 - x2 + x
Synthetic division yields
1 | 1 0 0 1
. | 1 1 1
= = = = = = = = = =
. | 1 1 1 2
which translates to
(x³ + 1) / (x - 1) = x² + x + 1 + 2/(x - 1)
where the quotient is x² + x + 1.
andy is scuba diving he starts at sea level and then descends 10 feet in 2 1/2 minutes. how would you represent andy’s descent as a unit rate? express your answer as an integer
Answer:
4 feet/minute
explanation:
The rate of descent = (10 feet)/(2.5 mn) = 4 ft/min
The numbers 1 to 13 are written on 13 separate slips of paper and placed into a box. A slip of paper is randomly drawn from the box. Express probabilities as reduced fractions and as decimals rounded to 3 decimal places. 1. a. What is the probability that the slip of paper has an odd number on it? 1. b. What is the probability that the slip of paper has a number less than 4 on it? Theoretical probability can be used to predict the likelihood of an event. If a single, 6-sided die is rolled there are six possible outcomes. That is, after rolling the die, the side facing up will show one of six possibilities: 1, 2, 3, 4, 5, or 6. The theoretical probability that the die would land with a "2" on the side facing up is P = 1/6 = 0.167 because one out of the 6 possibilities is a "2." MGF2106 Project 2B; SP2020 5 2. Two experiments are conducted in which a single 6-sided die is rolled 20 and 80 times. The outcomes of the experiments are shown below. For each result calculate the experi
Answer: 1a. 0.538
1b. 0.231
Step-by-step explanation:
For Section A.
Given data:
Numbers to be drawn = 1 to 13
Odd numbers = 7
Even numbers = 6
1a. Probability of drawing an odd number
= 7/13
= 0.538
1b. Probability of drawing a number less than 4.
= 3/13
= 0.231
Section B.
You need to provide me with the table containing the data, for me to be able to assist you with it.
what is the value of x in the proportion 2 1/4/x = 1 1/2/3 3/5?
(A) 2 2/5
(B) 5 2/5
(C) 8 1/10
(D) 12 3/20
Answer:
its d bc it is so yeah suck a toe hehehehehehehhehehehehehehehehhehehehehehehehehhehehehehhehehehehhehehehehehehehehehhehhehehehhhehehehehhehhehehehe
Answer: I’m pretty sure ur answer would be B) 5 2/5
Step-by-step explanation: good luck ! <3
Using the frequency table below, what is the
probability of selecting a boy and a person who
bought 10 up to 20 lunches?
Answer:
[tex]\frac{1}{6}[/tex]
Step-by-step explanation:
P(Boy and 10-20 lunches)
[tex]=\frac{20}{10+20+30+5+25+30}\\=\frac{20}{120}\\=\frac{1}{6}[/tex]
The answer to this problem is 1/6.
Please help as soon as possible
Answer:
[tex]x=5[/tex] is the required digit that can be used to correctly complete the equation.
Step-by-step explanation:
Given the equation
_____ × 1/10 = 1/2
Let 'x' be the required digit
If we put x=5 the L.H.S will be equal to R.H.S.
i.e.
5 × 1/10 = 5/10 = 1/2
so the equation becomes
5 × 1/10 = 1/2Therefore, [tex]x=5[/tex] is the required digit that can be used to correctly complete the equation.
Which inequality is true?
----
>
-3
-2.
-1
0
1
2
3
0 1 / 2 < -1 2 3
0-2 / 5-17 /
0 -2/3-1-1
/4
Answer:
-3,-2,-1,0,1,2,3
Step-by-step explanation:
Which problem has a sum or difference of 7/12 ? Mark all that apply.
A. 3/4 + 1/6
B. 3/4 - 1/6
C. 1/3 + 1/4
D. 1/4 + 1/6 + 1/12
E. 2/3 - 1/12
F. 2/3 + 1/6
will mark you brainliest
Answer:
a and b
Step-by-step explanation:
the arithmetic mean of a data set is the measure of center ______. (PHOTO INCLUDED)
Answer:
Option A is correct option.
Step-by-step explanation:
We need to fill in the blank:
the arithmetic mean of a data set is the measure of center ______
Arithmetic mean is calculating average of data i.e adding all the value divided by total number of values.
So, Option A is correct option.
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PLEAS HELP ME I WILL GIVE YOU FREE ROBUX PLEASE HELP ME ON THIS ANSWER
Question:Name each polygon by its number of sides and then classify it as CONVEX or CONCAVE and REGULAR or IRREGULAR
Answer:
1.Nonagon-convex, regular
2.Quadrilateral-convex, irregular
3.Hexagon-concave, irregular
Answer:
1.-Nonagon-convex, regular
2.-Quadrilateral-convex, irregular
3.-Hexagon-concave, irregular
Help now fast please
Answer:
3/4 or .75
Step-by-step explanation:
slope = dy/dx
dy = 1 - -2 = 3
dx = 2 - -2 = 4
slope = 3/4
Step-by-step explanation:
(1+2)/(2+2)= 3/4 is the slope
Solve for x in angle bisector please
Answer:
x = 15
Step-by-step explanation:
Since, BX is the bisector of [tex] \angle BAC[/tex]
[tex]\therefore m\angle ABX = \frac {1}{2} m\angle ABC\\\\
\therefore 24= \frac {1}{2}\times (4x - 12)\\\\
\therefore 24= \frac {1}{2}\times 2(2x - 6)\\\\
\therefore 24= (2x - 6)\\\\
\therefore 24 = 2x - 6 \\ \\
\therefore 24 +6 = 2x\\\\
\therefore 30 = 2x \\\\
\therefore x = \frac{30}{2} \\\\
\therefore x = 15
[/tex]
Find the coordinates of the midpoint of the segment whose endpoints are R(9, 3) and S(-1, -9).
Answer:
[tex](4, -3 )[/tex]
General Formulas and Concepts:
Pre-Algebra I
Order of Operations: BPEMDASAlgebra I
Midpoint Formula: [tex](\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )[/tex]Step-by-step explanation:
Step 1: Define
R (9, 3)
S (-1, -9)
Step 2: Find midpoint
Substitute: [tex](\frac{9-1}{2}, \frac{3-9}{2} )[/tex]Subtract: [tex](\frac{8}{2}, \frac{-6}{2} )[/tex]Divide: [tex](4, -3 )[/tex]can someone please help me with this
Answer:
10.) y=-3x+5
11.) y= -1/2 x+2
Step-by-step explanation:
step by step attchaed below
Find the zeros of each function. Part 3. Please show work.
1. f(x)= x^4 - x^3 - x^2 - x - 2
2. f(x)= x^3 - 8x^2 + 19x - 12
9514 1404 393
Answer:
real: -1, 2; complex: +i, -i1, 3, 4Step-by-step explanation:
1. The graph (red) shows the only real zeros to be -1 and 2. When the corresponding factors are divided from the function, the remaining factor is the quadratic (x^2 +1), which has only complex roots. The quadratic is graphed in green.
The linear factorization is ...
f(x) = (x +1)(x -2)(x -i)(x +i)
The roots are -1, 2, -i, +i.
__
2. The graph (blue) shows the zeros are 1, 3, 4.
You observe that the sum of coefficients is zero, so x=1 is a root. Factoring that out gives the quadratic (x^2 -7x +12), which you recognize factors as
(x -3)(x -4) . . . zeros of 3 and 4
__
I have attached a spreadsheet that does synthetic division. There are web sites that will do this, too. The tables shown correspond to f1(x)/(x-2) and f2(x)/(x-1). When you fill in the zero and coefficients, the built-in formulas do the rest.
9514 1404 393
Answer:
real: -1, 2; complex: +i, -i
1, 3, 4
Step-by-step explanation:
1. The graph (red) shows the only real zeros to be -1 and 2. When the corresponding factors are divided from the function, the remaining factor is the quadratic (x^2 +1), which has only complex roots. The quadratic is graphed in green.
The linear factorization is ...
f(x) = (x +1)(x -2)(x -i)(x +i)
The roots are -1, 2, -i, +i.
__
2. The graph (blue) shows the zeros are 1, 3, 4.
You observe that the sum of coefficients is zero, so x=1 is a root. Factoring that out gives the quadratic (x^2 -7x +12), which you recognize factors as
(x -3)(x -4) . . . zeros of 3 and 4
__ The tables shown correspond to f1(x)/(x-2) and f2(x)/(x-1).
what is the area of a rectangular garden that is 60 feet by 20 feet
TJ-Maxx offered a 40% discount off the original
price of a head board. The amount of the discount
is $14. What is the regular price of the head
board?
HELP THIS IS IMPORTANT!!!!!!!!!
8 The fourth grade had 363 students. Over winter break, 94 students moved away, but
26 new students moved in.
а
How
many students are now in fourth grade Show your work.
There are now
students in fourth grade
Answer:
the answer is 295 students
Answer:
363-94+26 = 295 students
How many terms are in the expression, 4x + 5y + 15?
Answer:
There are 3 terms.
True or false that integers can be negative numbers
Answer:
true
Step-by-step explanation:
What is the ratio of the number of days in the week that do not begin with the letter "T" to the number of days in the week that do begin with the letter "T"? (1 point)
Answer:
5:7
Step-by-step explanation:
The days in the week whose names don't begin with 'T' are Sunday, Monday, Wednesday, Friday, and Saturday. I counted them, and found that there are five (5) of them. Then I counted the number of days in a full week, no matter how they're spelled. I counted seven (7) that time. The ratio of 5 to 7 is. 5:7 or 5/7.
What is 12 percent of 12
Answer:
1.44
Step-by-step explanation:
because I am smart
3) g(x) = 4x
h(x) = -3x^2 + 4
Find (g + h)(x)
Answer:
The answer is the last line below.
Step-by-step explanation:
g(x) = 4x
h(x) = -3x^2 + 4
(g + h)(x) = 4x - 3x^2 + 4