PLS HELP QUICKLY!!! Choose the definition for the function.
s-x+ 2 x <1 S-x+ 2 x > 1
a. y =
x + 1 x 1
c. y =
1 x + 1 x < 1
1-X + 2 XS 1
d. y =
{-x+ 2 x 2 1
x > 1
x + 1 x < 1
b. y = {x+1
{** 2 *si
Enter
Answer:b
Step-by-step explanation:
The requried function represented in the graph is given as y = [-x + 2, x<1] and y = {x + 1, x ≥ 1} Option A is correct.
What is the graph?The graph is a demonstration of curves that gives the relationship between the x and y-axis.
What are functions?Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
The equation of the function shown in the graph is given as,
y = [-x + 2, x<1]
y = {x + 1, x ≥ 1}
Thus, the requried function represented in the graph is given as y = [-x + 2, x<1] and y = {x + 1, x ≥ 1} Option A is correct.
Learn more about graphs here:
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Solve each by elimination
4x - 9y = 61
10x + 3y = 25
Answer:
(4,-5)
Step-by-step explanation:
Hi there!
The problem asks us to solve by elimination, where we will add the two equations together to clear one variable, solve for the other variable, and then substitute the value of the other variable to find the value of the first variable
here's the system:
4x-9y=61
10x+3y=25
we'll clear y to start
multiply the second equation by 3
3(10x+3y)=3(25)
30x+9y=75
4x-9y=61
now add the equations together (the 9y's clear because one is positive and another is negative)
34x=136
divide by 34
x=4
the value of x is 4
now to find y:
substitute the value of x into either one of the equations to solve for y
if we were to do the first equation for example:
substitute x as 4 into the equation
4(4)-9y=61
multiply
16-9y=61
subtract
-9y=45
divide
y=-5
so the answer is x=4, y=-5. If you need it as a point, it's (4,-5)
Hope this helps! :D
Find the area and the circumference of a circle with diameter 6 yd.
Use the value 3.14 for it, and do not round your answers. Be sure to include the correct units in your answers.
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Patricia is testing some mineral properties to help her identify each mineral. For one test, she scrapes a mineral on a special plate to observe the color left behind.
For which of the following properties of minerals is she MOST LIKELY using this test?
Group of answer choices
cleavage
hardness
luster
streak
Keesha is conducting several tests on minerals to help identify them. She uses a small hammer to break the mineral. Which property of the mineral might Keesha be testing?
Group of answer choices
cleavage
texture
luster
streak
Haley tests the streak of two mineral samples using a streak plate. Both minerals leave a pale yellow streak. Which of the following might Haley conclude about the two mineral samples?
Group of answer choices
They both have dull luster.
They are very soft minerals.
They could be the same mineral.
They are both very hard.
The students in Mr. Leone’s class are studying rocks. The students tell Mr. Leone that several of their rocks are sedimentary. Which of the following could the students use as evidence for their thinking?
Group of answer choices
The rocks are grainy.
The rocks contain fossils.
The rocks are heavy.
The rocks have large crystals.
Answer: Hope This Helps!
Step-by-step explanation:
1: Streak: Streak is a word referring to the color of the streak that a rock makes when it is scraped against the unglazed side of a white ceramic tile (or, the unglazed bottom of a white coffee cup or toilet tank cover).
2: Luster: The luster of a mineral is best observed on a surface that is free of moisture, dirt, tarnish, and abrasion. Geologists in the field usually carry a rock hammer to break rocks so that their true luster and color can be observed.
3: They could both be the same mineral: The minerals pyrite and gold are always metallic yellow in color and streak (although they differ in other characteristics such as hardness).
4: The rocks contain fossils: Sedimentary rocks are most likely to contain fossils. Fossils are formed when the bodies or remnants of living organisms (plants and animals) are covered and are thus protected from predators or microbial decay. And thats exactly what a sedimentary rock is.
Side 1: 3x2 - 2x - 1
Side 2: 9x + 2x2 - 3
The perimeter of the triangle is 5x3 + 4x2 - x - 3.
Part B: What are the degree and classification of the expression obtained in Part A? (2 points)
Answer:
Part A - [tex]l_{1} + l_{2} = 5\cdot x^{2} + 7\cdot x -4[/tex], Part B - Polynomial of second degree and formed by 3 monomials, Part C - [tex]l_{3} = 5\cdot x^{3} -x^{2}-8\cdot x +1[/tex]
Step-by-step explanation:
Part A - The total length of the sides 1 and 2 is equal to the addition between respective polynomials:
[tex]l_{1} + l_{2} = (3\cdot x^{2} - 2\cdot x - 1) + (9\cdot x + 2\cdot x^{2} - 3)[/tex]
[tex]l_{1} + l_{2} = (3\cdot x^{2} + 2\cdot x^{2}) + (9\cdot x - 2\cdot x) +[(-1) + (-3)][/tex]
[tex]l_{1} + l_{2} = 5\cdot x^{2} + 7\cdot x -4[/tex]
Part B - The degree is the highest exponent of the polynomial and the classification is related to the number of monomial that make part of the algebraic expression. In this case, we conclude that resulting expression is a polynomial of second degree and formed by 3 monomials.
Part C - The length of the third side of the triangle by subtracting the expression found in part A from the polynomial of the perimeter of the triangle:
[tex]l_{3} = p - l_{1} - l_{2}[/tex]
[tex]l_{3} = (5\cdot x^{3}+4\cdot x^{2}-x-3) -(5\cdot x^{2}+7\cdot x -4)[/tex]
[tex]l_{3} = 5\cdot x^{3} + [4+(-5)]\cdot x^{2}+[(-1)+(-7)]\cdot x +[(-3)+ 4][/tex]
[tex]l_{3} = 5\cdot x^{3} -x^{2}-8\cdot x +1[/tex]
Answer:
Part A; Total length of side 1 and 2 = 5·x² + 7·x - 4
Part B; The degree of the polynomial is 2
The classification of the polynomial is a trinomial quadratic equation
Part C; 5·x³ - 4·x² - 6·x + 2
Step-by-step explanation:
The length of the sides of the rectangle are;
Side 1: 3·x² - 2·x - 1
Side 2: 9·x + 2·x² - 3
The perimeter of the rectangle is 5·x³ + 4·x² - x - 3
Part A
The given expression for the sides of the rectangle are;
Side 1: 3·x² - 2·x - 1
Side 2: 9·x + 2·x² - 3
The total length of side 1 and side 2 is given by add ing the given expressions as follows;
Total length of side 1 and 2 = 3·x² - 2·x - 1 + 9·x + 2·x² - 3 = 5·x² + 7·x - 4
Part B
The degree of the polynomial is 2 and the classification of the polynomial is a trinomial quadratic equation
Part C
Given that a rectangle rectangle consists of two pairs of equal opposite sides, we have;
The length of the third side = The perimeter - (2 × The length of side 1 + The length of side 2)
The length of the third side = 5·x³ + 4·x² - x - 3 - (2 × (3·x² - 2·x - 1) + 9·x + 2·x² - 3)
The length of the third side = 5·x³ + 4·x² - x - 3 - (8·x² + 5·x - 5)
The length of the third side = 5·x³ - 4·x² - 6·x + 2
need help fast on a timer
Answer:
D, [tex]10i\sqrt{2}[/tex]
Step-by-step explanation:
Separate -1, 2, and 100 from each other inside the radical. You can take out -1 as i, and 100 as 10. You now have 10i on the outside of the radical and 2 on the inside. Hope this helps.
Answer:
the answer is D.
!!!!!!!!!!!!!!!!!!!!!!!!
Write the equation that goes through the points (1,4) and (5,8)
Negative 3y plus 5y plus 5x subtract 3y
Answer:
5x-y
Step-by-step explanation:
Mr. Lucas built two gardens in his yard with the dimensions shown. 2 ft How much soil, in cubic feet, will Mr. Lucas need to fill both gardens?
Answer:
I think the answer is 150 but im not positive Im sorry if im wrong
Step-by-step explanation:
Answer:
Step-by-step explanation:
150 ft
Which choice is equivalent to the expression below?
Answer:
[tex]\text{A. 8}i[/tex]
Step-by-step explanation:
The math constant [tex]i[/tex] represents [tex]\sqrt{-1}[/tex]. Because [tex]\sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}[/tex], we can rewrite the equation given the problem as [tex]\sqrt{-64}=\sqrt{64}\cdot \sqrt{-1}=\boxed{8i}[/tex].
[tex]y 12 \times y8 \div y3[/tex]
Answer:
y^17
Step-by-step explanation:
y^12 x y^8 ÷ y^3 = y^20 ÷ y^3 which equals y^17
1. Label all the following values using the box and whisker plot below: (1 point each)
(a) Minimum:
(b) Median (Q2):
(c) lower quartile (Q1):
(d) upper quartile (Q3):
(e) maximum:
Answer:
minimum 56
Median (Q2) 65
Lower Quartile (Q1) 60
Upper Quattile (Q3) 67
Maximum 75
Step-by-step explanation:
If you notice, there are 5 distinguished points of data, and I used all the points for each thing you asked for. You just have to recognize the minimum and maximum are the largest and smallest of all the data, and there is clearly nothing outside of the range of 56-75. then Q1, Q2, and Q3 are on the box itself. The median, just like with numbers, will always be the middle line. It is not directly in the center because there are more people in the 65-75 value range than the 56-65 value range.
hope this helps!
Answer:
minimum 56
Median (Q2) 65
Lower Quartile (Q1) 60
Upper Quattile (Q3) 67
Maximum 75
Step-by-step explanation:
i go to k12
Find the AREA of a circle with a radius of 12 inches. (use 3.14 for pi)
Answer:
area=pie *(r)^2
=3.14*(12in.)^2
=3.14*144in.^2
=452.16in.^2
Step-by-step explanation:
ILL GIVE BRAINLY
Solve for x.
27
36
X
28
X= ?
Answer:
[tex]\frac{27}{x} =\frac{36}{28} \\\\x =\frac{27*28}{36} = \frac{3*28}{4} =3*7 =21[/tex]
Answer:
x = 21
Step-by-step explanation:
The parallel lines divide the transversals proportionally, that is
[tex]\frac{27}{x}[/tex] = [tex]\frac{36}{28}[/tex] ( cross- multiply )
36x = 756 ( divide both sides by 36 )
x = 21
6/9 - 12/16 PLEASE SOLVE I NEED IT ASAP PLSSSSSSS
Answer:
just subtract 6-12 =?
and then 9-16=?
Step-by-step explanation:
=6/7
Answer:
-1/12
Step-by-step explanation:
6/9 - 12/16
divide to the simplest
2/3 - 3/4
find the LCM = 12
therefore,
8 - 9 all over 12
-1/12
Any idea?
A-102
B-82
C-105
And please can you give me explanation
Answer:
A
Step-by-step explanation:
An angle on a straight line is 180,this means x+78=180
x=102
Find the measure of angle 6.
Answer:
124 degree
Step-by-step explanation:
Since 9y + 7 and 4y+4 are supplementary,
9y + 7 + 4y + 4 = 180
13y + 11 = 180
13y = 180 - 11 = 169
y = 169/13
y = 13
Therefore, 9y + 7 = 9*13 + 7 = 124
4y + 4 = 4*13 + 4 = 56
Since Angle 6 and angle 9y + 7 are vertically opposite angles, they are equal.
angle 6 = 9y + 7
Angle 6 = 124
Hope u understand.
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Natalie is making 1 1/2 the brownie recipe.The recipe calls for 2 1/2 cups of sugar.How many cups of sugar should she use?Pls hurry or i get 0%
what is next in the sequence? -1,2,7,14,23
Answer:
11
Step-by-step explanation:
yes
Help me (giving brainliest)
none. .g,h.fg,hb.fg,hcg,/.c, .v,b mbfg,.b,t;lger,gl;erd
Answer:
⊥H∀∩K y∅∪
Step-by-step explanation:
4. Over what interval is the function shown in the
table decreasing?
Answer:
The derivative of a function may be used to determine whether the function is increasing or decreasing on any intervals in its domain. If f′(x) > 0 at each point in an interval I, then the function is said to be increasing on I. f′(x) < 0 at each point in an interval I, then the function is said to be decreasing on I.
Step-by-step explanation:
What is the mean for the set of data?
Answer:
the mean is 3
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Step-by-step explanation:
Its multiple choice pls help
Answer:
I don't understand the question could u explain it more?
Step-by-step explanation:
Plz, help me with this question!
Answer:
A. 24
Step-by-step explanation:
Angles in a triangle add up to equal 180
Thus, 66 + 90 + x = 180
66 + 90 = 156
156 + x = 180
180 - 156 = 24
Hence, x = 24
Note: There is a right angle indicated by the square inside of the triangle. A right angle has a measure of 90 degrees. So Just in case you were wondering that's where the 90 cam from
the third term of an arithmetic series is 70 and the sum of the first 10 terms of the series is 450 . Calculate the common difference of the series .The sum of the series is Sn .Given that Sn > 350 . Find the set of possible values of n
Common difference is 6
Possible values of n is n > 8
Step-by-step explanation:(i) The nth term (Uₙ) of an arithmetic series is given by
Uₙ = a + (n-1)d --------------------(i)
and the sum of the series is given by;
Sₙ = [tex]\frac{n}{2}[/tex](2a + (n-1)d) ---------------------(ii)
Where;
a = first term of the series
d = common difference of the series
n = the term or number of terms to be added.
Interpret the first statement
The third term of the series is 70. i.e
n = 3
Uₙ = U₃ = 30
Substitute these values into equation (i) as follows;
=> 30 = a + (3 - 1)d
=> 30 = a + 2d
=> a = 30 - 2d --------------------(iii)
Interpret the next statement
the sum of the first 10 terms of the series is 450. i.e
n = 10
Sₙ = S₁₀ = 450
Substitute these values into equation (ii) as follows:
=> 450 = [tex]\frac{10}{2}[/tex](2a + (10-1)d)
=> 450 = 5(2a + 9d)
Divide both sides by 5
=> 90 = 2a + 9d ---------------------------(iv)
Solve equations (iii) and (iv) simultaneously
Substitute the value of a in equation(iii) into equation (iv) and solve as follows
=> 90 = 2(30 - 2d) + 9d
=> 90 = 60 - 4d + 9d
=> 90 = 60 + 5d
=> 5d = 90 - 60
=> 5d = 30
Divide both sides by 5
=> d = 6
Therefore, the common difference, d is 6
(ii) Given
Sₙ > 350
From equation (ii), this implies that,
[tex]\frac{n}{2}[/tex](2a + (n-1)d) > 350 -------------------(v)
Let's get the value of the first term 'a'
Substitute the value of d = 6 into equation (iii) and solve as follows
=> a = 30 - 2(6)
=> a = 30 - 12
=> a = 18
Substitute the values of a and d into inequality (v) and solve
[tex]\frac{n}{2}[/tex](2(18) + (n-1)6) > 350
[tex]\frac{n}{2}[/tex](36 + 6n - 6) > 350
[tex]\frac{n}{2}[/tex](36 - 6 + 6n) > 350
[tex]\frac{n}{2}[/tex](30 + 6n) > 350
Multiply both sides by 2
n(30 + 6n) > 700
30n + 6n² > 700
6n² + 30n > 700
Divide through by 2
3n² + 15n > 350
3n(n+5) > 350
Solve the quadratic inequality
Since n specifies the number of terms to be added, it will always be a whole number. Therefore, using trial and error method, the values of n that will satisfy the above inequality will be values greater than 8. i.e
n > 8
In other words, for all values of n greater than 8, the above inequality will be satisfied.
5. Solve. 2 Questions only 86 points
c) 9.3 = 3n
d) 2n - 2.5 = 5.5
Answer:
what that person said
Step-by-step explanation:
Teran decided to run every day to keep herself healthy. He ended up running 3/5 of a kilometer every day. How much did she run in a week?
Answer: Very Easy 3/5 x 7 = 4.2. The decimal 4.3 can be written as the mixed fraction 4 3/10 or as the improper fraction 43/10.
Answer:
21/5= 4 1/5 =4.2 You pick which one 3 possible answers
Step-by-step explanation:
3/5+3/5+3/5+3+5+3/5+3/5+3/5=21/5 kilometers
21/5=4 1/5=4.2
please help due today
Answer:
15
Step-by-step explanation:
Let the smallest integer be x. The integers will be x, x+1, x+2, all the way up to x+6.
119 = 7x + (1+2+3+4+5+6)
119 = 7x + 21
7x = 98
x = 14
The second smallest integer will be x+1, so x+1 = 15.
What is the answer to this x-7;x=23
Answer:
16
Step-by-step explanation:
if x=23, 23-7=16