1. Tính:
a) 2x*(2x^2-3x+5)+6x^2
b) (2+x)*(2-x)-4
c) (x+5)^2-10x
2. Tìm x, biết:
a) 3*(x^2-2x+1)=3x^2+3
b) (3-x)^2-(x-1)*(2+x)=0
Answer:
1.b (2+x)*(2-x)-4
2.a 3*(x^2-2x+1)=3x^2+3
BRIANLIST ANSWER pls help i meant to put science
Answer:
I'd say Yev's description is best because it's the most specific to what it actually is in terms of science, while everyone else's descriptions are more like examples of different types and stages of energy, and where it could be found.
Hope this makes sense to ya :)
HELP, please I'm stuck
What are the values of x and y?
Answer:
D should be correct
Step-by-step explanation:
Lets create an equation.
7x + 1 + 4x - 8 + 120 + 12y = 360
We will now try all options to see which one fits perfectly.
----------------------------------------------------------------------------------
A) x = 3, y = 10
7(3) + 1 + 4(3) - 8 + 120 + 12(10) = 360
=> 21 + 1 + 12 - 8 + 120 + 120 = 360
=> 266 ≠ 360 (False)
----------------------------------------------------------------------------------
B) x = 1, y = 12
7(1) + 1 + 4(1) - 8 + 120 + 12(12) = 360
=> 7 + 1 + 4 - 8 + 120 + 144 = 360
=> 268 ≠ 360 (False)
----------------------------------------------------------------------------------
C) x = 32, y = 10
7(32) + 1 + 4(32) - 8 + 120 + 12(10) = 360
=> 224 + 1 + 128 - 8 + 120 + 120 = 360
=> 585 ≠ 360 (False)
----------------------------------------------------------------------------------
D) x = 17, y = 5
7(17) + 1 + 4(17) - 8 + 120 + 12(5) = 360
=> 119 + 1 + 68 - 8 + 120 + 60 = 360
=> 360 = 360 (True)
----------------------------------------------------------------------------------
Kind requests:
Please give me brainliest :)
vx-w=2
rearrange it and make x the subject
Answer:
[tex]vx - w = 2 \\ vx = 2 + w \\ x = \frac{2 + w}{v} [/tex]
Evaluate the expression when m=6
m²-5m-4
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\boxed{\mathsf{m^2 - 5m - 4}}\\\large\boxed{\mathsf{= 6^2 - 5(6) - 4}}\\\large\boxef\large\boxed{\mathsf{= 36 - 30 - 4}}}\\\large\boxed{\mathsf{= 6 - 4}}\\\large\boxed{= \textsf{2}}}\\\huge\boxed{\text{Therefore, your answer is: \textsf 2}}\huge\checkmark[/tex]
[tex]\huge\textsf{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
55
(x + 30)
Find the value x
x=25 because 30+25=55. and 55-25=30
First, and correct answer gets brainliest, also worth 50 points
One angle be x
other is 2x-6ATQ
[tex]\\ \sf\longmapsto x+2x-6=90[/tex]
[tex]\\ \sf\longmapsto 3x-6=90[/tex]
[tex]\\ \sf\longmapsto 3x=96[/tex]
[tex]\\ \sf\longmapsto x=32[/tex]
[tex]\\ \sf\longmapsto 2x-6=2(32)-6=58°[/tex]
Answer:
58°
Step-by-step explanation:
The measure if one 2 complementary angle is 6 less than the measure of the other => x + 2x - 6° = 90°
x + 2x - 6° = 90°
3x = 90° + 6°
3x = 96°
x = 96° : 3
x = 32°
Substitution :
2x - 6°
= 2 × 32° - 6°
= 64° - 6°
= 58°
y = 3 x ² + 1 , if the input is 4 , what us the output
Answer:
the out put would be 49
Step-by-step explanation:
Did I choose the right answer to this
Answer:
honestly, i think it would be d
Step-by-step explanation:
i could be wrong, but i hope this helps :)
Write three fractions that are equivalent to 5/7
Answer:
10/14 or 10 over 14, 15/21 or 15 over 21, and 20/28 or 10 over 28
Step-by-step explanation:
you multiply both numbers by 2, 3, and 4 to make equivalent fractions.
Brainliest would be appreciated thank you!
help please i dont know what to do
okay so for the first one it's 3b-16
but when you see b=8 you would rewrite it as 3×8- 16 and once you do that you should have the answers you do the same thing for the rest of them :)
Somebody help me please
Answer:
Step-by-step explanation:
Find all missing angles m 1, m 2, m 3, and m 4
Answer:
i thinks it on a app
Step-by-step explanation:
yea the wedsite is
Z-49+851=100+21z /////////////////////////////////////////////////
Answer:
z=35.1
Step-by-step explanation:
Answer:
z = 351/10 or z = 35.1
Step-by-step explanation:
*Add/subtract numbers: -49 + 851 = 802
z + 802 = 100 + 21z
*Subtract 802 from both sides
z + 802 - 802 = 100 + 21z - 802
*Simplify
z = 21z - 702
*Subtract 21z from both sides
z - 21z = 21z - 702 - 21z
*Simplify
-20z = -702
*Divide both sides by -20
- 20z/20 = - 702/- 20
*Simlify
z = 351/10 or z = 35.1
2⁴+(2.75+1.75)÷0.9 fast pls helppppp
Answer:
21
Step-by-step explanation:
First, add the parenthesis
2^4 + 4.50 ÷ 0.9
Second, divide 4.50 by 0.9
2^4 + 5
Third, get rid of the ^4
(2x2x2x2)
16 + 5
21
If I could get help………
Answer:
[tex]x1 = 3 \\ y1 = 10 \\ x2 = 5 \\ y2 = 12 \\ y - y1 = \frac{y2 - y1}{x2 - x1} (x - x1) \\ y - 10 = \frac{2}{2} (x - 5) \\ y = x - 5 + 10 = x + 5[/tex]
enjoy it
State the angle relationship and state the measure of each angle indicated that makes lines u and v parallel
Answer:
5) Alternate Exterior angles 90º
6) Same side Interior angles. 132º if that says 48º on the page
7) Corresponding angles. too blurry but they are congruent
8) Alternating Exterior angles. too blurry but they are congruent
Step-by-step explanation:
Congruent means they are the same measurement just as a reminder :).
I need help with this
Area work I’ve completely forgotten how to do it
Answer:
18 x 4 = 72
72/2 = 36
36 is the answer
Step-by-step explanation:
x²-2xy-4z²+y² x=1 y=2 z=0
Answer:
the answer is 1.
Step-by-step explanation:
x²-2xy-4z²+y²
given:
x=1 y=2 z=0
now,
=1^2-2*1*2-0+2^2
=1
hope it helps ..thank u
A pitcher contains 4.5 pints of iced tea. How many fluid ounces of iced tea are in the pitcher?
Somebody please help me
Answer:
3750
Step-by-step explanation:
Question 9 (1 point) Which of the following does NOT describe mass?
a remains constant
b a measure of matter
C a measure of gravitational force
d measured in kilograms
The answer is a measure of gravitational force
Name all trigonometric ratios that are equivalent to 3/5
Answer: if (1/x) = (3/5) then
x = 5/3.
As far as equivalent ratios to 3:5 go, there are an infinite number
3:5 = 6:10 = 12:20 = 1.5:2.5
Step-by-step explanation:
^
Solve for x.
x−1.2=3
Hello!
Answer:
x=4.2
Step-by-step explanation:
first, you want to add 1.2 to both sides
x-1.2+1.2=3+1.2
=x=4.2
= x=4.2 :)
Hope this helps!
what is 25= n+20 ?????will mark brainliest
Answer:
n = 5
Step-by-step explanation:
5 + 20 = 25
therefore n = 5
What is the area of the rectangle?
A. 40 units
B. 45 units
C. 50 units
D. 55 units
Answer:
-5 x -5 = 25
7 x 5 = 28
28 + 25 = 53
53 + 2 = 55
D. 55
There it is my dear friend.
Please help me with this question
Answer:
(0, -2)
Step-by-step explanation:
Function Intercepts "y" in this point
I hope this help you
help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
7200
Step-by-step explanation:
The number was 72. you move the decimal 2 places to the right (left if it was negative) There are no numbers there. So you add 0's .
(Sorry if I did not explain good enough. I am not very good at explaining things.)