Answer:
11
Step-by-step explanation:
(x - y)² = x² - 2xy + y² = x² + y² - 2xy = 15 - 2(2) = 15 - 4 = 11
Answer:
11
Step-by-step explanation:
(x-y)²=x²+y²-2(xy)
Given : x²+y²=15
xy=2
By substituting we get ,
(x-y)²=15-2(2)
(x-y)²=15-4
(x-y)²=11
4x – y if x = – 2 and y = 3
Evaluate
Answer:
-11
Step-by-step explanation:
4x -y
Substitute x and y
4( -2 ) - 3
Simplify
-8 -3
Subtract
-11
Answer:
-11
Step-by-step explanation:
[tex]4x - y[/tex]
[tex]4( - 2) - 3[/tex]
[tex] - 8 - 3[/tex]
[tex] - 11[/tex]
the answer in standard notation is
If the discriminant of a quadratic equation is 4, which statement describes the roots?
There are two complex roots.
There are two real roots.
There is one real root.
There is one complex root.
Answer: There are two real roots
Step-by-step explanation: Terms in this set (6) If the discriminant of a quadratic equation is 4, which statement describes the roots? B. There are two real roots.
As of discriminant of the quadratic equation is 4, then we find that there two real and distinct roots.
In a quadratic equation, the discriminant of the quadratic formula indicates the nature of the two roots of the polynomial. Main characteristics are described below:
If discriminant is greater than zero, then roots are real and distinct.If discriminant is zero, then roots are real and equal.If discriminant is less than zero, then roots are complex.According to the statement, the discriminant of the quadratic equation is 4, then we find that there two real and distinct roots.
We kindly invite to check this question on discriminants: https://brainly.com/question/15884086
if u like geometry and you know it answer *answer* *answer*
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
It's C because DE[tex]\neq[/tex]GF
What is 150% of 20?
Answer:
30
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
100% of 20 is 20, so 50% is 10
All you have to do is add the 100% and the 50%
subtract 7/10 and 14/15
HELP!!!!! PLEASE!!!!!!
Answer:
the first one
Step-by-step explanation:
hash xhskkabiwjajdhueiajehwouqhwjw
What are the measurements???
Answer:
angle 4 is 31
angle 5 is 59.
Step-by-step explanation:
M<4 and M<5 add up to a right angle which is 90 degrees . so you put it in a equation form.
2x-5+4x-13=90
rearrange it
2x+4x-5-13=90
6x-18=90
add 18 on both sides
6x=108
divide 6 from both sides
and you get x= 18
Plug in x for angle 4 =2(18)-5 = 31
plug in x for angle 5 = 4(18)-13 = 59
The value of 2^-3x3^-2
Answer:
[tex]\frac{1}{72}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{-m}[/tex] ⇔ [tex]\frac{1}{a^{m} }[/tex] thus
[tex]2^{-3}[/tex] = [tex]\frac{1}{2^{3} }[/tex] = [tex]\frac{1}{8}[/tex]
[tex]3^{-2}[/tex] = [tex]\frac{1}{3^{2} }[/tex] = [tex]\frac{1}{9}[/tex]
Then
[tex]\frac{1}{8}[/tex] × [tex]\frac{1}{9}[/tex] = [tex]\frac{1}{72}[/tex]
Answer:
1/72.
Step-by-step explanation:
2^-3 = 1 / 2^3 = 1/8.
3^-2 = 1/3^2 = 1/9
So the answer is 1/8 * 1/9
= 1/72.
The instructor had saved $3,500 and rents an apartment
for $275 monthly. He believes the point (6, 1850) would
be on the equation of the line. Is he correct? Explain how
to check if a point is on a line.
Step-by-step explanation:
The instructor had saved $3,500 and rents an apartment for $275 monthly. The slope-intercept form of the above scenario is :
y=-275x+3500
The instructor belives that the point (6, 1850) would be on the equation of the line. Put y = 1850 and x = 6 in the above equation. So,
1850=-275(6)+3500
1850=1850
LHS=RHS
It means that the point (6,1850) lies on the line. Hence, he was correct.
Answer:
Sample Answer: Write the equation using slope and y-intercept in slope-intercept form, y = –275x + 3500. Then, substitute the x and y values of the point into the equation, 1850 = –275(6) + 3500. Simplify to see if both sides are equivalent. Yes, the instructor is correct because both sides are equivalent.
Step-by-step explanation:
right on edge.2020
HELP WILL MARK YOU BRAINLIEST!!!
Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50
each, write and solve an inequality that represents the greatest number of rides Daniel can go on?
Answer:
y=10+1.50x
y=amount of money he can spend
x=the number of rides he can go on
A suit sells for one hundred thirty-eight dollars. A store employee bought the suit, using his employee discount of forty-five percent. What was the amount of his discount?
Answer:
$62.10
Step-by-step explanation:
To calculate how much the employee's discount actually was, we just multiply the original price by the discount
Plug the prices in --> 138 x 45/100
Simplify 45/100 --> 9/20
138/1 x 9/20 = 1242/20
1242/20 = 62.1
62.1 = $62.10
and thus, the discount is $62.10
Answer:
$63.10
Step-by-step explanation:
simplify urgently : -(-9y+7) pleaseee!!
Answer:
9y - 7Step-by-step explanation:
apply minus - plus rule:
- (-9y + 7)
= 9y - 7
Solve the division problem. Round answer to the nearest hundredth.
52.063/9.2
Answer:
52.060 first one 2nd 9.2 i belive
Step-by-step explanation:
An auditorium has 100 seats for every 10 rows. Each row has the same number of seats. If s represents the number of seats and r represents the number of rows, which equation represents this proportional relationship?
A.
s = 10r
B.
C.
100s = r
D.
100s = 10r
.
Answer:
I hope this helps
Step-by-step explanation:
c-0.51+0.3c?
come on help me
Answer:
0.54c is the correct answer
like it
Answer:
1.3c-0.51
Step-by-step explanation:
Based off your answer choices.
c is equivalent to 1.
1c + .3c = 1.3c
1.3c - 0.51
5+ (-11) - (11)=
Imao i need help
Answer:
5 + (-11) - (11)
= 5+ (-11) -(11)
= -6 - 11
= -6 + - 11
= -17
Answer: -17
Step-by-step explanation:
Add and subtract ( left to right)
+ (-11) = -11
= 5 - 11 - (11)
5-11 = -6
=-6 - (11)
-6-(11)= -17
=-17
Change value to decimal form. -10/2
Answer:
-5
Step-by-step explanation:
2 goes into 10 5 times.
Since it's negative 10, it is -5.
what is the formula for W.
Answer:
l x w ig because it would be the area
Answer:
[tex] w = \frac{1}{2}{ p - l}[/tex]
Step-by-step explanation:
[tex]p = 2l + 2w \\ \\ p - 2l = 2w \\ \\ \frac{p - 2l}{2} = w \\ \\ \frac{1}{2} p - l = w \\ \\ \huge \red {\boxed{ w = \frac{1}{2} p - l}}[/tex]
Write this number in standard notation,
4.702 x 10-4
Answer:
0.0004702
Step-by-step explanation:
Answer:
0.0004702
Step-by-step explanation:
got it right
PLZ HELP put the numbers in order them from least to greatest. 0.3 -4.5 2.3 0.7 -0.5
Answer:
-4.5/-0.5/0.7/0.3/2.3
Step-by-step explanation:
Which value is an output of the function?
O -6
O -2
O 4
O 7
Answer:
-2
Step-by-step explanation:
the output is f(x), and -2 is the only number for the list to be in the f(x) column.
Answer:
-2
Step-by-step explanation:
The column labeled x is the input.
The column labeled f(x) is the output.
Of the numbers in the choices, only -2 is in the output column.
Answer: -2
"Now that you’ve created your hypotheses, it’s time to prove them. First, look at the sum of two rational numbers. Let’s say they are two rational numbers, x and y. Because they’re rational, they can be written as a ratio of integers. Let x = a/b and y = C/D, where a, b, c, and d are integers and b and d do not equal 0. The process for finding the sum x + y in terms of a, b, c, and d is shown." Question:Based on this sum and using the closure property of integers, what conclusion can you make about the sum of two rational numbers? Explain your answer.
Answer:
hello some parts of your question is missing attached below is the missing part
answer: the sum Given it can seen that according to the closure property of Rational numbers the addition of two rational numbers will sum up to a rational number provided that the rational numbers ≠ 0 and a set of rational number is closed under the closures property rule i.e x + y = y + x
Step-by-step explanation:
using the closure property and based on the sum given :
From the sum Given it can seen that according to the closure property of Rational numbers the addition of two rational numbers will sum up to a rational number provided that the rational numbers ≠ 0 and a set of rational number is closed under the closures property rule i.e x + y = y + x
I've seen a few comments about the answer so the answer the person above me answered is:
"The sum given can seen according to the closure property of rational numbers. The addition of two rational numbers will sum up to a rational number, provided that the rational numbers are ≠ 0 and a set of rational number is closed under the closures property rule, in other words: x + y = y + x."
Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is
1.5 meters tall. Which conclusion is best supported by the given information?
If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella's
If Tyrone stands at the top of a 1 m high ramp, his potential energy will be greater than Ella's.
If Tyrone stands at the top of the same ramp, his potential energy will be the same as Ella's.
If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella's.
Hey
Step-by-step explanation:
Given that,
Mass of Ella is 56 kg and mass of Tyrone is 68 kg.
Position of Ella is 1.5 m on the ramp.
Potential energy of an object is given by :
P = mgh
It is directly proportional to the position of an object.
If Tyrone stands at the top of ramp at more height than Ella, it will have more potential energy. Hence, the correct option is (d) "If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella's."
Answer:
it would be d.
Step-by-step explanation:
got it right on the test
I WILL AWARD BRAINLIEST!!
Answer:
Step-by-step explanation:
y=1/3 x-1x intercept : y=0
1/3 x-1=0
1/3 x=1
x=3
y=-2x+60=-2x+6
-2x=-6
x=-6/-2
x=3
9x-y=279x-0=27
9x=27
x=27/9=3
7.) Calculate the percentage growth rate for a country with a population of 7 million in a year in
which it had 100,000 births, 70,000 deaths, 30,000 immigrants and 40,000 emigrants.
Answer:. The growth rate is 0.3%
0.286% if a more accurate percentage is required.
Step-by-step explanation: Add Births and immigrants
100,000+30000= 130,000
Subtract deaths and emigrants
-70,000 -40,000
Net gain in population: 20,000
Divide 20000/7000000=0.002857142857
Round and change to percent:
0.286% or 0.3%
Find an
equation of the line through (1,8) and parallel to y = 4x + 3.
In slope intercept form
Answer:
The answer is
[tex]y = 4x + 4[/tex]Step-by-step explanation:
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
To find the equation of the parallel line we must first find the slope of the original line
The original line is y = 4x + 3
Comparing with the general equation above
Slope = 4
Since the lines are parallel their slope are also the same
Slope of parallel line = 4
The equation of the line using point (1,8) and slope 4 is
[tex] y - 8 = 4(x - 1) \\ y - 8 = 4x - 4 \\ y = 4x - 4 + 8[/tex]
We have the final answer as
[tex]y = 4x + 4[/tex]
Hope this helps you
Use the GCF and the distributive property to find the expression that is
equivalent to 36 + 54.
O A. 18(2 + 3)
O B. 3(12 + 18)
O C. 9(4+6)
O D. 6(6+9)
Answer:
c
Step-by-step explanation:
Answer:
A. 18 (2 + 3)
Explain how to find the y-intercept from the table. What is the y-intercept?
Answer:
The y-intercept of a graph is the point where the graph crosses the y-axis
Step-by-step explanation:
You can find the y-intercept by looking at the graph and seeing which point crosses the y axis.
The y-intercept is the value of the function when x is zero
Given data ,
To find the y-intercept from a table, you need to identify the point where the x-coordinate is zero. The y-coordinate of this point represents the value of the dependent variable (usually denoted as "y") when the independent variable (usually denoted as "x") is zero. The y-intercept is the point at which the graph of the function intersects or crosses the y-axis.
To find the y-intercept from a table, look for the row or entry where the x-coordinate is zero. The corresponding y-coordinate in that row or entry represents the y-intercept.
Hence , the y-intercept is the value of the function when x is zero, and it represents the point where the graph of the function intersects the y-axis.
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