Answer:
B. ($25n)
Step-by-step explanation:
Due to it being n shirts, the price is $25 plus itself n times.
Hence, the price is $25n.
Hope this helped!
a+b+c=m,a2+b2+c2=n,a3+b3=p3. If c=0 then prove that m3+2p3=3mn
Answer:
a + b + c = m
=> (a + b+ c)³= m³
⇔m³ = a³ + b³ +c³ + 3(a + b)(a + c)(c + b)
=> m³ + 2p³ = 3a³ + 3b³ + c³ + 3(a + b)(a + c)(b + c)
with c = 0 => m³ + 2p³ = 3a³ + 3b³ + 3ab(a + b)
have:
3mn = 3(a + b + c)(a² + b² + c²)
with c = 0
=> 3mn = 3(a + b)(a² + b²) = 3[a³ + ab² + ba² + b³]
= 3a³ + 3b³ + 3(a²b + ab²)
= 3a³ + 3b³ + 3ab(a + b)
= m³ + 2p³
=> 3mn = m³ + 2p³
Step-by-step explanation:
Given the conditions a + b + c = m, a² + b² + c² = n, and a³ + b³ + c³ = p, we are required to prove that if c = 0, then m³ + 2p³ = 3mn.
If c = 0, then the equations become a + b = m, a² + b² = n, and a³ + b³ = p.
Using the sum of cubes identity (a³ + b³ = (a + b)(a² - ab + b²)), we can rewrite the third equation as (a + b)(a²- ab + b²) = p.
Since a + b = m, we can substitute this value into the above equation: m(a² - ab + b²) = p.
Now, we'll square the first equation (a + b = m) to get a² + 2ab + b² = m². Rearranging, we find ab = (m² - n)/2.
Substituting this value of ab into the equation m(a² - ab + b²) = p, we get m(a² + b² - (m² - n)/2) = p.
Now, we know that a² + b² = n, so we can replace a² + b² in the equation: m(n - (m² - n)/2) = p.
Simplifying the equation further, we get
mn - (m³ - mn)/2 = p.
Finally, rearranging the equation, we find that
m³ + 2p³ = 3mn.
Thus, we have proved that if c = 0, then m³ + 2p³ = 3mn.
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-10 + 4
plz heeeeeelp
Answer:
-6
Step-by-step explanation:
Answer:
- 6
Step-by-step explanation:
please help me this question
Answer:
0
Step-by-step explanation:
bcoz 2^5 X 9²=2592
so the difference is 0
what is the value of x?
Answer:
I honestly have no clue.
Step-by-step explanation:
I honestly have no clue.
PLZ HELP ASAP 20 POINTS!! wrote an equation in slope-intercept (y=mx+b) form for each line.
Answer: I’m sorry I cannot explain this any other way because I can not see the answers but —> If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line. ✨
Step-by-step explanation: hope it help you later on!
Answer:
Y= -4x + 3
Step-by-step explanation: because the x value goes with mx, and the y value goes with b. :)
What is the slope of the line through (0,5) and (-2,-1)?
Answer:
c
Step-by-step explanation:
the slope is 3
ms.kirklan is baking muffins.each batch of muffins use 3/4 of a pound of flour. How many batches of muffins can she bake with 5 pounds of flour
The number of batches of muffins Ms.Kirklan can bake with 5 pounds of flour is 7.
Given that, Ms.Kirklan is baking muffins. Each batch of muffins use 3/4 of a pound of flour.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
We need to find the number of muffins she can bake with 5 pounds of flour
Now, 5 ÷ 3/4
= 5 ÷ 0.75
= 6.6
≈ 7
Hence, the number of batches of muffins Ms.Kirklan can bake with 5 pounds of flour is 7.
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13 x 24 =
pleze go very fast or i mite fale
Answer:
312
Step-by-step explanation:
A line contains points (3,5) and (5,8). What is the slope
Answer:
3/2x
Step-by-step explanation:
Plug in to this formula
[tex]\frac{y2-y1}{x2-x1} \\\\\frac{8-5}{5-3} \\\\\frac{3}{2}[/tex]
Your slope is 3/2x
If you want to find the y-intercept just plug in one of the points into this..
( ) = 3/2( ) + b
Hope this helps ya!!
ASAP 30 points and BRAINLIEST!! PLS!
Answer:
[tex]y+3=\frac{2}{5} (x+5)[/tex]
Step-by-step explanation:
First, let's find the slope using the 2 given points and the slope equation.
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
Enter in the points:
[tex]m=\frac{-3--1}{-5-0}[/tex]
Simplify:
[tex]m=\frac{-2}{-5}[/tex]
[tex]m=\frac{2}{5}[/tex]
Now that we have slope we can just use one of the points given. Remember point-slope form:
[tex]y-y1=m(x-x1)[/tex]
I'll use the point (-5,-3) in this case.
So, your solution is
[tex]y+3=\frac{2}{5} (x+5)[/tex]
Hope this helps!
y+1=2/5(x+0) should be it
idenify the slope and y-intercept of the function y=-2x+3
Answer:
The y-interept is 3 and the slope is -2.
Step-by-step explanation:
The y-intercept is always the "b" in y=mx+b
Answer:
Slope: − 2
y-intercept: ( 0 , 3 )
Step-by-step explanation:
& represents 29 students in a class
B represents students who have a brother
S represents students who have a sister
В.
S
7
4
2x
x + 3
7+4+2x+x+3=29
a) One student from the class is chosen at random.
What is the probability that the student has a sister? 14+3x=29
3x=15
X=5
29-8=21
Answer:
a) 14/ 29
b) 4/11
Step-by-step explanation:
x = 5
Please help I will give brainliest to first person who answers!
Answer:
71 degrees
It's the measure of angle 1.
Evaluate the expression 2x-x2 for x = 5?
Answer:
0
Step-by-step explanation:
2x - x2
2(5) - (5)2
0
Answer:
-15
Step-by-step explanation:
2x - x^2 = 2×5 - 5^2 = 10-25 = -15
Find three solutions for the linear equation 4x-3y = 1
PS. answer plsss
Answer:
I had shoot it so, hope it help u. and sorry, if it is incorrect!!
Answer:
X=1, y=1,(x,y)=(1,1)
X=0,y=-1:3,(x,y)=(0,1:3)
X=1:4,y=0,(1:4,0)
Step-by-step explanation:
Just put the numbers instead of x in the equation and get y, and in (x, y) put the numbers x, y instead.
Compute the sum (Worth 15 Points!)
[tex]\[51 \cdot 23 + 49\cdot (-11)+49 \cdot 11 + 51 \cdot (-23).\][/tex]
Answer:
268.
Step-by-step explanation:
So we have 51*23+49+49*11*-11+51*-23
2(51+23+49+11) ( the 2 negatives cancel out)
So, 51+23+49+11 is 134.
2(134)
or 268.
Hope this answers your question!!!
Answer:
268 :)
Step-by-step explanation:
Forty of the staff of 85 teachers at a local intermediate school are certified in Cardio-Pulmonary Resuscitation (CPR). In 180 days of school, what would be the expected mean, variance and standard deviation?
Answer and Step-by-step explanation:
The computation is shown below;
Here we use the binomial distribution
p = 40 ÷ 85 = 0.47
q = 1 -0.47 = 0.53
n = 180
Now
mean [tex]\mu[/tex]
= np
= 180 × 0.47
= 84.6
The Variance is
= npq
= 180 × 0.47 × 0.53
= 44.84
And, Standard deviation
= √npq
= √44.84
= 6.69
We simply applied the above formula so that the correct value could come
And, the same is to be considered
5.
Lacy is going to bake a cake she needs to measure 6 cups of flour,
but the only has a measuring cup that measures 2/3 of a cup. How
many times should she fill the measuring cup up to get 6 cups of
rower? -- YOU MUST SHOW WORK EVEN OM MULTIPLE CHOICE!!
A # 1/3 uma:
B
Answer:
8
Step-by-step explanation:
2/3 x2= 1.5
1.5 x4= 6
2x4=8
At noon, the minute and the hour hands overlap. In how long will they overlap again?
Answer:
1 hour or 60 minutes later
Manny baked 48 cookies for a bake sale. 75% of the cookies were chocolate chip. How many cookies were NOT chocolate chip
16. Calculate the slope of the line that passes through the points (-6, -8)
and (-2,3)
Answer:
look at the question another way or from another angle
Step-by-step explanation:
I'll mark you brainiest if you give me the correct answer.
Answer:
42b -7.5
I think that's the answer since you are getting a discount which means you are subtracting
What is the rate of change of y with respect to x for 25x - 4y = 50 ?
Answer:
25/4Step-by-step explanation:
The change of y with respect to x is known as the slope of the line. The standard form of the equation is y = mx+c where m is the slope.
Given the equation 25x - 4y = 50, we need to make y the subject of the formula before we get the slope as shown;
25x - 4y = 50
-4y = -25x+50
Divide through b y -4
-4y/-4 = -25x/-4 + 50/-4
y = 25/4 x - 25/2
Comparing with y = mx+c
mx = 25/4 x
m = 25/4
Hence the rate of change of y with respect to x is 25/4
The rate of change of y with respect of x for the given equation is [tex]\frac{25}{4}[/tex].
Given the equation:
[tex]25x - 4y = 50[/tex]
The rate of change = the slope of the line
To determine the slope of 25x - 4y = 50, rewrite the equation in slope-intercept form. i.e. [tex]y = mx + b[/tex]Where, slope = mThus,[tex]25x - 4y = 50[/tex]
Add 25x to both sides of the equation[tex]25x -25x - 4y = - 25x + 50\\\\-4y = - 25x + 50[/tex]
Divide both sides by -4[tex]\frac{-4y}{-4} = \frac{-25x}{-4}+ \frac{50}{-4}\\\\y = \frac{25}{4}x - \frac{25}{2}[/tex]
Therefore, the rate of change of y with respect of x for the given equation is [tex]\frac{25}{4}[/tex].
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If mAngleUTV < mAngleUTS < mAngleSTR, which statement is true? VU < US < SR by the hinge theorem. VU = US = SR by the hinge theorem. mAngleUTV = mAngleUST = mAngleSTR by the converse of the hinge theorem. mAngleUTV > mAngleUTS > mAngleSTR by the converse of the hinge theorem.
Answer:
VU < US < SR by the hinge theorem.
Step-by-step explanation:
Did quiz on edge
Answer:
A. VU < US < SR
Step-by-step explanation:
I got a 100 on the test
23p+1/4-1/4(8p+1)=5(4p-6)+10
What is p?
Answer:
p= -20
Step-by-step explanation:
23p+1/4-1/4(8p+1)=5(4p-6)+10
23p+1/4-2p-1/4=20p-30+10
21p=20p-20
p= -20
Jack is buying threats for how cats. He wants to buy some greens, which cost $4.95 a bag. He also wants to buy beef bites, which cost $3.50 a bag. White an equation that models treats purchased by Jack when he spends $21.85
Answer:
4.95x + 3.5y = 21.85
Step-by-step explanation:
x represents the greens, and y represents the beef bites.
which equation repersent functions?
2x+3y=10
4x=16
2x-3=14
3y=18
14.6=2x
Answer:
y= (-2/3)x+10/3 is a function
3y=18 is a function
Step-by-step explanations
in both cases for each input x there is exactly one output y
The choir raised $700 last year. This year they hope to raise 25% more money. How much money do they hope to raise this year?
Answer:
$875
Step-by-step explanation:
take the 700 mulitple it by.25. you should get the answer 175. add 175 to 700 and you get your whole which is 875.
someone help please
Answer:
Type: polynomial
degree: 3
leading coefficient: 8
Step-by-step explanation:
The given equation is: f(x) = -7x^2 + 8x^3 + 6 - 4x
To find the type, degree, and leading coefficient of the equation, the first thing we should do is rewrite the terms in decreasing order:
f(x) = 8x^3 - 7x^2 - 4x + 6
The term with the highest value is 8x^3. We can use this to determine the degree and the leading coefficient.
8 is the leading coefficient. The degree is 3.
To find the type of equation this is, we have to count how many terms there are. We can see that there are 4 terms in this equation, making this a polynomial.
Please answer this question it is for Math!
Answer:do you mean plotting a graph
Step-by-step explanation: