Answer:
B: Irrational
Step-by-step explanation:
I did this test to i promise its right.
Graph the following lines on the coordinate plane:
Answer:
https://vietjack.com/giai-toan-lop-9/images/bai-38-trang-62-sgk-toan-9-tap-1-
Step-by-step explanation:
Vẽ đồ thị y = 2x (1):
Cho x= 0 ⇒ y= 0 ta được O (0, 0)
Cho x= 2 ⇒ y = 4 ta được điểm (2; 4)
- Vẽ đồ thị y = 0,5x (2):
Cho x= 0 ⇒ y = 0 ta được O (0; 0)
Cho x = 4 ⇒ y = 2 ta được điểm (4; 2)
- Vẽ đồ thị y = -x + 6 (3):
Cho x = 0 ⇒ y = 6 được điểm (0; 6)
Cho y = 0 ⇒ x = 6 được điểm (6; 0)
Để học tốt Toán 9 | Giải bài tập Toán 9
I WILL MARK BRAINLIEST! What is the surface area and the volume of this Cylinder?
Answer:
Surface Area = 264π
Volume = 576π
Step-by-step explanation:
in the picture
Answer:
SA= 829.38 Inches² which is 829.38/3.14159 = 264π inch³
V = 110.43 inches³. which is 110.43/ 3.14159 = 35.15π inch³
Step-by-step explanation:
To find the surface area of cylinder, we calculate two area of circle 2πr² and one area of rectangle 2πrh first, and then add them 2πr²+2πrh.
SA of a cylinder =2πrh+2πr², where π≈3.14159
Radius given is 12/2 = 6 inches
= 2 x π x 6 x 16 + 16 x π6 x 6 ≈ 829.3804 = 829.38 Inches²
Volume = h*π *r^2
V = 16 x π
= 110.43 inches³.
Help me mateee or person
Plz help im giving 30 points
Answer:
3.2
Step-by-step explanation:
3.8 + (-0.6)
=> 3.8 - 0.6 [Since, Positive x Negative = Negative]
=> 3.2
So Plot 3.2 on the number line. (First segment after 3)
3. Priya drew a triangle with side lengths 3, 4, 5. She wants to draw a triangle that is a smaller scaled copy. Which of the following are scale factors she could use to make the triangle smaller? Select all that apply. *
YOU CAN SELECT MORE THAN ONE
A. 1
B. 3.5
C 0.5
D. 3/2
Answer:
(C) 0.5
Step-by-step explanation:
side with length 3 will now be 1.5
side with length 4 will now be 2
side with length 5 will now be 2.5
this will make the new triangle appear to be smaller than the original
I WILL MARK AS BRAINLIEST! Solve the following
Answer:
6) a) 69 b) 97 c)86 d)71
7) A.
Step-by-step explanation:
6)
a) -1-[9(-8)]-2 = -1 - (-72) -2
= -3 + 72 = 69
b) 81 + 4² = 81 + 16
= 97
c)12×7 + 6÷3 =(12×7)+(6÷3)
= 84 + 2
=86
d)74 + 9 ÷ -3 = 74 + (9÷ -3)
= 74 - 3
= 71
7)
Statement: Larry has at most seven miles left in the race
This statement is represented by the inequality;
[tex]x \leqslant 7[/tex]
Answer:
Part A.
69
Part B.
97
Part C.
93
Part D.
86
Step-by-step explanation:
Part A.
-1-9x(-8)-2
-1+72-2
69
Part B.
81+4^2
81+16
97
Part C.
12x7+6+3
84+6+3
93
Part D.
74+9+3
83+3
86
Find the unit rate.
54 passengers on 2 buses
=
passengers per bus
Hi ;-)
54 passengers on 2 buses = 27 passengers per bus
54 : 2 = 27
Answer:
the answer is 27 passengers per bus
Step-by-step explanation:
54÷2=27
number 27 pls snsinusnisbihwbhwbihbsyigsyuvwuhbwuhbwhi sorry i have to write 20 characters
1. Use the list below to classify all the subsets of real numbers that the number "-29" belongs to.
real numbers
irrational numbers
rational numbers
integers
whole numbers
natural numbers
2. Use the list below to classify all the subsets of real numbers that the number "10.530" belongs to.
real numbers
irrational numbers
rational numbers
integers
whole numbers
natural numbers
3. Tell whether each statement is always true, sometimes true, or never true.
"An integer is a whole number."
Always True
Never True
Sometimes True
Please helpp meee
Perform the indicated operation. Simplify the result in factored form.
Answer:
[tex]\frac{a+1}{(a-2)(a-1)(a-1)}=[/tex]
Step-by-step explanation:
1. Approach
The easiest method to solve this problem is to factor the expression. In order to subtract (or add) two fractions, both fractions have to have common denominators. When the fractions are factored one can easily see the least common denominator. Convert both fractions to the least common denominator by multiplying the numerator (number over the fraction bar) and denominator (number under the fraction bar) by the value such that both fractions have the same denominator. Finally, one can subtract the numerators of the two fractions.
2. Factoring and Least common denominator
[tex]\frac{3}{a^2-3a+2}-\frac{2}{a^2-1}=[/tex]
Factor the expression, rewrite the quadratic polynomials as the product of two linear polynomials,
[tex]\frac{3}{a^2-3a+2}-\frac{2}{a^2-1}=[/tex]
[tex]\frac{3}{(a-2)(a-1)}-\frac{2}{(a-1)(a+1)}=[/tex]
The least common denominator is: ([tex](a-2)(a-1)(a-1)[/tex])
Convert both fractions to the least common denominator, multiply both the numerator and denominator by the same value to do so,
[tex]\frac{3}{(a-2)(a-1)}-\frac{2}{(a-1)(a+1)}=[/tex]
[tex]\frac{3}{(a-2)(a-1)}*\frac{a-1}{a-1}-\frac{2}{(a-1)(a+1)}*\frac{a-2}{a-2}=[/tex]
Simplify,
[tex]\frac{3}{(a-2)(a-1)}*\frac{a-1}{a-1}-\frac{2}{(a-1)(a+1)}*\frac{a-2}{a-2}=[/tex]
[tex]\frac{3(a-1)}{(a-2)(a-1)(a-1)}-\frac{2(a-2)}{(a-1)(a+1)(a-2)}=[/tex]
3. Solving the expression
[tex]\frac{3(a-1)}{(a-2)(a-1)(a-1)}-\frac{2(a-2)}{(a-1)(a+1)(a-2)}=[/tex]
Distribute, multiply every term inside the parenthesis by the term outside of it,
[tex]\frac{3(a-1)}{(a-2)(a-1)(a-1)}-\frac{2(a-2)}{(a-1)(a+1)(a-2)}=[/tex]
[tex]\frac{3a-3}{(a-2)(a-1)(a-1)}-\frac{2a-4}{(a-1)(a+1)(a-2)}=[/tex]
Simplify further,
[tex]\frac{3a-3}{(a-2)(a-1)(a-1)}-\frac{2a-4}{(a-1)(a+1)(a-2)}=[/tex]
[tex]\frac{3a-3-(2a-4)}{(a-2)(a-1)(a-1)}=[/tex]
[tex]\frac{3a-3-2a+4}{(a-2)(a-1)(a-1)}=[/tex]
Combine like terms,
[tex]\frac{3a-3-2a+4}{(a-2)(a-1)(a-1)}=[/tex]
[tex]\frac{a+1}{(a-2)(a-1)(a-1)}=[/tex]
Help! I don't understand rate of change??
Hi :)
Rate of change is the change in the y divided by the change in x
Here's the formula
R = (∆y / ∆x )
R = rate of change
∆y = change in y
∆x = change in x
On the graph, △DEF was transformed to create △DGH.
Which transformations show that △DEF is similar to △DGH?
A
a dilation by a scale factor of 6 and then a 180° rotation about the origin
B
a dilation by a scale factor of 6 and then a translation 6 units down and 6 units left
C
a dilation by a scale factor of 3 and then a 180° rotation about the origin
D
a dilation by a scale factor of 3 and then a translation 6 units down and 6 units left
Answer:
it's B
Step-by-step explanation:
by analyzing it I figured it was 100% B
Answer:
C. a dilation by a scale factor of 3 and then a 180 degrees rotation about the origin.
Step-by-step explanation:
G is the same point transformed as E and H is the same as point F.
Since G is now (-9,0) that was multiplied 3 times from (3,0) before it was rotated. Which would show that the answer is probably C or D.
Next, the answer looks as though it has been rotated around D or the origin by 180 degrees but we don't know that quite yet.
So check if you dilated triangle DEF by a factor of 3 then translated it down 6 units point E would now be (9,-6).
Then translate it to the left 6 units. (3, -6). That's not the same as triangle DGH.
So the answer is C.
Hope this helps! If it does brainliest would be appreciated.
Plz Help I really need the answer. It's ok if you answer only one.
Answer: (for 11b) 15/6
Step-by-step explanation:
I added image of how I solved (I’m 99% sure this is right)
Hope this helps :-))
Answer:
[tex] \frac{5}{2} [/tex]
Step-by-step explanation:
the answer done is of (b)
Hope it helps.
help me also why does brainly take this down and give me a warning, ive seen many people do this -
Answer:
probably giving false information or something
Step-by-step explanation:
Two blueberry farms are similar in shape. The ratio of the side lengths of the farms is 5 : 6, and the smaller farm has a perimeter of 360 yards. The cost to dig a trench is $0.75 per yard. What is the cost to dig a trench around the larger blueberry farm?
A) $270
B) $324
C) $432
D) $480
Answer:
A $270 I'm guessing sorry I hope I'm right
PLEASE HELP! ΔMNP is the image of ΔJKL after a 90° clockwise rotation about the origin. ΔJKL is scalene. Describe the translation of the point to its image. (-1, 4) → (3, 3)
A) 2 units left and 7 units down
B) 4 units right and 1 unit down
C) 2 units right and 1 unit up
D) 4 units left and 1 unit down
b, a, d, c, b, a + b, c, d, d
Help please
......................
35x + 0.15y
=3500x + 15y
= 700x + 3y
2. x + (x+2) + (x+2+2) ----> x+x+2+x+4 ----->3x+6
3. 1/5*(r+7) - 9s -----> (r+7)/5 - 9s
4. x=cows and y= sheep+goats
Answer/x= (y+140)/2
hlppppppppppppppppppppppppppppppppppppppp
Answer:Integer Numbers?
Step-by-step explanation:
Martin is wrapping a present and cut a piece of ribbon that is
79
100
of a meter long. Select the decimal that represents the same length.
0.079 m
790 m
0.79 m
79 m
7.9 m
Answer:
.79
Step-by-step explanation:
79/100 or .79 m
what number has a prime factorization of 2x 5^2
Answer:
50
Step-by-step explanation:
2x5^2
=2x5x5
=10x5
=50
i need help with pre-algebra
8³−9⋅2÷3=
Answer:
well this is according to my calculator
Step-by-step explanation:
the answer is 506
Find the number that makes the ratio equivalent to 1:5.
4:
Answer: 4 : 20
Step-by-step explanation:
1 : 5 = 4 : __
= 1 * 4 = 4
= 5 * 4 = 20
= 4 : 20
So, this is your answer
Please help no links or files please. Please help ASAP. Algebra 9th grade
Answer:
y = 1500x + 20690
Step-by-step explanation:
We already know the slope. The prompt tells us that in 1996 there were 29,690 movie screens. We can write this as the point (6, 29690). We can find the y-intercept by substituting information into the point-slope formula.
[tex]y-y_1=m(x-x_1)\\\\y-29690=1500(x-6)\\\\y-29690=1500x-9000\\\\y=1500x+20690[/tex]
Now we know that number of movie screens in 1990 was 20,690 and that it increased by 1500 each year.
Here is trapezoid A in the coordinate plane:
If you drew Trapezoid C, the image of A after a reflection over the y-axis, what would be the coordinates of each of the vertices?
Answer:
(-2,1) (-2,3) (-4,1) (-4,4)
Step-by-step explanation:
Simply select each of the points, Count how many squares away that point is away from the line of reflection (the y-axis) and Put that point the same distance/amount of squares away on the other side of the y-axis. Join up the points and then you get your answer!
Andrea invites some of her relatives to a party.
She invites: 12 cousins
6 aunts
4 brothers
2 sisters
what fraction are aunts and sisters
Answer:
Aunts = 6/24 => 3/12 => 1/4
Sisters = 2/24 => 1/12
hope that helps uh..☺
Answer:
1/2 is the answer
Function Machines
*please show steps if you can*
Answer:
a. y=(-9)^2+3=81+3=84
y=square root of -9-2=3i-2
b. He cannot with the first but he can with with second. For the first, we have 0=x^2+3. Then subtract 4 from each side and get -3=x^2. This isn't possible in a theoretical term. For the second, you have 0=square root of x -2 or 2=square root of x. That means x is 4.
A regular number cube is rolled. What is the probability that an odd number will not be rolled?
1/2 1/3 5/6 2/3.
Help me nowww!! :(((
Answer
1/2
Step-by-step explanation:
A regular number cube would be half odd half even so 1/2 of the time it wouldnt be odd
I WILL MARK AS BRAINLIEST! Write and equation that represents the points on the table
Step-by-step explanation:
y = ax +b
2 = 0a+ b => b = 2
4 = -2a + b
4 = -2a +2
2a = 2-4
2a = -2
a = -1
so, y = -x + 2
Find the unit rate.
12 passengers in 4 cars
passengers per car
Answer:
3
Step-by-step explanation:
12/4=3 per car
Can someone help me please?
Answer:
469 2/3 (Answer 3)
Answer:
It's c 469 2/3
Step-by-step explanation:
7045 ÷ 15 = 469.6666667, which is just 469 2/3