Answer:
4x²y² + 20xy² + 25y²
Step-by-step explanation:
(a + b)² = a² + 2ab + b²
a = 2xy ; b = 5y
(2xy +5y)² = (2xy)² + 2*(2xy) * (5y) +(5y)²
= 2²x²y² + 2* 2* 5 * x*y*y + 5²*y²
=4x²y² + 20xy² + 25y²
What is the value of x ?
7x– 5 = 4x - 14
Answer: X is equal to -3
Step-by-step explanation: I isolated x and then divided both sides by x
What is the equation of the line that passes through (4, -1) and (-2, 3)?
Answer:
3--1/-2-4=4/-6=2/-3
y=-2/3x+b
-2*-2/3=4/3
3-4/3=5/3
y=-2/3x+5/3
Step-by-step explanation:
Answer:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
Step-by-step explanation:
We want to find the equation of the line that passes through the two points:
(4, -1) and (-2, 3).
First, we will find the slope of the two points. So:
[tex]\displaystyle m=\frac{3-(-1)}{-2-4}=\frac{4}{-6}=-\frac{2}{3}[/tex]
Now, we will use the point-slope form given by:
[tex]y-y_1=m(x-x_1)[/tex]
Use either point. I'm going to use (4, -1). So, substitute:
[tex]\displaystyle y-(-1)=-\frac{2}{3}(x-(4))[/tex]
Simplify and distribute:
[tex]\displaystyle y+1=-\frac{2}{3}x+\frac{8}{3}[/tex]
Subtract 1 from both sides. Therefore:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
1. What percent of 200 is 0.5?
Answer:
Step-by-step explanation:
My guess is % 1/400
Answer:
0.5 is 0.25% of 200.
Step-by-step explanation:
1 is 1/200 of 200.
Therefore, 0.5 is 1/400 of 200.
1/400 = 0.0025 = 0.25/100
Therefore, 0.5 is 0.25% of 200.
Pablo swims 1 length of a swimming pool. What unit would be best for measuring that length of the pool?
Answer:
kiloliters
Step-by-step explanation:
The amount of water a family uses in a year is a large amount of water - more than the amount of water in a pool! This means kiloliters would be the best unit of measurement.
6. At the Winter Olympics, the ratio of Canadian medals to US to Russia was 1:8:5. If Russia won 25
medals, how many did Canada and US won?
Answer:
Step-by-step explanation:
Let x be the total number of medals won by the Russians.
The way to do this is to add the ratios together
1 + 8 + 5 = 14
(5/14) x = 25
Multiply by 14
5*x = 25 * 14
5x = 350
divide by 5
70
8/14 = x / 70
14x = 8 * 70
14x = 560
x = 560 / 14
x = 40
The USA won 40 medals.
1/14 = x / 70
14x = 70
x = 5
Canada Won 5 medals.
Check
Russia Won 25 medals
Canada Won 5 medals
USA Won 40 medals
Total 70
Can someone simplify this equation and solve for x and y?
(2x-5)+(y-1)+x=169
Answer:
Answer
2x+3y=14,2x−3y=2
Adding :
2x+3y=14
2x−3y=2
__________
4x=16
x=4
∴xy=4×2
=8
2×4+3y=14
8+3y=14
3y=6
y=2
Step-by-step explanation:
here you go
Answer: The y-intercept is found by substituting known values for x and y in the equation and solving for b. the known values are (x,y) = (2,8.4) Equation of y = 4.2*x + b becomes 8.4 = 4.2*2 + b
Step-by-step explanation:
If there is a 70% chance that it will snow today, what is the percent chance that it
will NOT snow today?
Answer:
30%
Step-by-step explanation:
100-70=30
Answer:
i dunno 30%?
Step-by-step explanation:
find the length of x in simplest radical form with a rational denominator
Answer:
√3Step-by-step explanation:
[tex]\cos(30^o)=\dfrac{\sqrt3}2[/tex]
From triangle: [tex]\cos(30^o)=\dfrac x2[/tex]
Therefore:
[tex]\dfrac x2=\dfrac{\sqrt3}{2}\\\\x=\sqrt3[/tex]
HELP!! WILL GIVE 100 POINTS
Complete the following statement.
In 2/3 ÷ 4/5 the___ is 2/3
dividend
quotient
divisor
Answer:
2/3 is quotient.
Step-by-step explanation:
2/3÷4/5=(2×5)/(3×4)=10/12=5/6
Answer:
quotient
Step-by-step explanation:
If it is a divison problem your answer will be a quotient.
what is the answer to 3x + 4y - 2g + s
there isn't an answer since all the letters are different and you can't add or subtract or do anything to uncommon values. 3x+x = 4x but u can't do 3x +y because they're not in common
What is the sale price of a bottle of olive oil originally priced at $6?
Answer: While there are plenty of quality options on the shelves that fall between the $15 and $30 range, “trendy” olive oils like Brightland and Fat Gold cost more, at $37 and $44.75, respectively. Some even have price tags in the three digits.
Step-by-step explanation:
Write the equation of the parabola that has the vertex at point (-2, -2) and passes through the point (-1, -1)
Answer:
y = (x+2)²-2
Step-by-step explanation:
Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.
What is a value of \sqrt(7) inches to the nearest hundredth?
Answer:
2.65
Step-by-step explanation:
Using a calculator's square root key, we get √7 = 2.64575....
To the nearest hundredth, that'd be √7 = 2.65.
Here is a rectangle all measurement are in centimetres the area is 48cm^2 find the value of y
Answer:
y = 3 cm
Step-by-step explanation:
We'll begin by calculating the value of x. This can be obtained as follow:
2x + 6 = 5x – 9 (opposite side of rectangle are equal)
2x + 6 = 5x – 9
Collect like terms
6 + 9 = 5x – 2x
15 = 3x
Divide both side by 3
x = 15 / 3
x = 5 cm
Next, we shall determine the length of the rectangle. This can be obtained as follow:
L = 2x + 6
x = 5 cm
L = 2(5) + 6
L = 10 + 6
L = 16 cm
Finally, we shall determine the value of y. This can be obtained as follow:
Length (L) = 16 cm
Width (W) = y =?
Area (A) = 48 cm²
A = L × W
48 = 16 × y
Divide both side by 16
y = 48 / 16
y = 3 cm
PLWASE HELP ME THIS IS DUE TODAY
Find the area of the shaded region. Use 3.14 for it. 8 cm 8 cm
solve 3p+2c is greater or equal to 120 and graph the solution
Answer:
equal to 120
3p+2c is equal to 120 and graph the solution.
helpppppppppppppppppppppppppppppppppppppppppppp
Answer:
lets talk first
Step-by-step explanation:
Answer:
4/13
Step-by-step explanation:
u just mutilpy 1/52 by 2 = 1/26 by 2 = 1/13 by 2= 2/13 by 2- 4/13
Which system of inequalities does the graph represent? Which test point satisfies both of the inequalities in that system?
The graph represents the system of inequalities .
The test point satisfies both of the inequalities in the system represented by the graph.
Answer:
Ok so its -3;3
Step-by-step explanation:
Decide if the following statement is valid or invalid.
If I go to the park, then I will play baseball. If I play baseball, I will need a glove. I will go to the park tomorrow, I will need a glove.
Valid or Invalid ?
Answer:
valid
Step-by-step explanation:
help me please I really need it.
Thank you
Answer:
D
Step-by-step explanation:
Answer:
D is ur answer
Step-by-step explanation:
Bye
Macy makes 15 of 20 free throws at basketball practice. What is the experimental probability that she will miss her next free throw?
Step-by-step explanation:
she might lose 1/4 of the next free throws
What should be the answer for 3 multiplied by x? If x is 9.
Answer:
27
Step-by-step explanation:
x = 9
3 x 9 = 27
I need help with this probability question.
Answer:
20/total (u can calculate it)
Step-by-step explanation:
Number of dogs/Total number of pets
h + 6.3 = −6.3 solve for h
Answer:
0
Step-by-step explanation:
Hi there!
Let think about this...
-6.3-6.3=h
h+6.3=-6.3
negative plus positive is negative...
h=negative number..
6.3+6.3=12.6 add a negative point=-12.6
Final Result: -12.6
There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles? Select all the equivalent ratios that represent this relationship.
Use the FOIL Method to find (x−4)(x+8).
Answer:
[tex]x^2 +4x - 32[/tex]
Step-by-step explanation:
By FOIL method, [tex](x-4)(x+8) = x \cdot x + x \cdot 8 + -4 \cdot x + -4 \cdot 8 = x^2 +4x - 32.[/tex]
find the following square by using the identities
[tex](2xy + 5y) {?}^{2} [/tex]
Given:
Consider the given square is
[tex](2xy+5y)^2[/tex]
To find:
The value of given square by using the identities.
Solution:
We know that,
[tex](a+b)^2=a^2+2ab+b^2[/tex] ...(i)
We have,
[tex](2xy+5y)^2[/tex]
Using the identity (i), we get
[tex](2xy+5y)^2=(2xy)^2+2(2xy)(5y)+(5y)^2[/tex]
[tex](2xy+5y)^2=4x^2y^2+20xy^2+25y^2[/tex]
Therefore, the value of given square expression is [tex]4x^2y^2+20xy^2+25y^2[/tex].
y=4x-6
2x-3y=8
if this problem is to be solved bye substitution, which is correct step
Answer:
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
ok
Calculate the scale factor for the original triangle and its
larger image. Show your working out.
Answer:
2
Step-by-step explanation:
8/4=2
have a good day..
I would really appreciate if someone would help me i don’t understand
Answer:
D. 48
Step-by-step explanation:
In the experiment, 16/40 landed exactly on heads. If you do 16/40 * 3/3 = 48/120.
This means that you can estimate 48 of the next 120 trials have 2 coins showing heads.