Answer:
Step-by-step explanation:
On Monday, Nora read ¼ of the book, therefore she is left with ¾ of the original book.
Then on Tuesday, she read 2/5 of what was left on Monday therefore she is left with 3/5 of ¾ of the original book. This is equal to:
(3/5) (3/4) = 9/20
She still needs to read 9/20 of the book or 0.45 or 45% of the book.
Please answer this question it is for Math!
Answer:do you mean plotting a graph
Step-by-step explanation:
Please help I will give brainliest to first person who answers!
Answer:
71 degrees
It's the measure of angle 1.
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!!
what is the value of x?
Answer:
I honestly have no clue.
Step-by-step explanation:
I honestly have no clue.
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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Please help me out :)
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
& 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
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
What is the slope of the line through (0,5) and (-2,-1)?
Answer:
c
Step-by-step explanation:
the slope is 3
13 x 24 =
pleze go very fast or i mite fale
Answer:
312
Step-by-step explanation:
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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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
-10 + 4
plz heeeeeelp
Answer:
-6
Step-by-step explanation:
Answer:
- 6
Step-by-step explanation:
PLEASE HELP:(........thank you
Answer:
the answer is C
Step-by-step explanation:
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
At noon, the minute and the hour hands overlap. In how long will they overlap again?
Answer:
1 hour or 60 minutes later
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.
whats 1/2 + 8 9/14 please help ASAP
Answer: 9 /17 as fraction 9.143 Simplify
Step-by-step explanation:
Answer:
9 1/7
The explanain of this is that 1/2 + 8 + 9 1/4 so... 1/2+9/14=?
7 1/4 + 9/14=16/14 and so... 16/14=8/7 then.. 8/7=1 1/7 then last thing 8 + 1 + 1/7= 9 1/7
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:
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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Manny baked 48 cookies for a bake sale. 75% of the cookies were chocolate chip. How many cookies were NOT chocolate chip
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
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 5x +2y = -15
Answer:
-5/2
Step-by-step explanation:
5x +2y = -15
-5x -5x
2y = -5x - 15
y = -5/2x - 7.5
y = mx + b
Slope (m) = -5/2
down 5, right 2
please help me this question
Answer:
0
Step-by-step explanation:
bcoz 2^5 X 9²=2592
so the difference is 0
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.
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.
what is f(x) = 0,5 (x-3)( x-5) in general form??
Answer:
[tex]f(x)=0.5x^2-4x+7.5[/tex]
Step-by-step explanation:
The general form of a quadratic function is:
[tex]y=ax^2+bx+c[/tex]
We'll find the general form of the function:
[tex]f(x)=0.5(x-3)(x-5)[/tex]
Multiplying the expressions in parentheses:
[tex]f(x)=0.5(x^2-5x-3x+15)[/tex]
Simplifying:
[tex]f(x)=0.5(x^2-8x+15)[/tex]
Operating:
[tex]\mathbf{f(x)=0.5x^2-4x+7.5}[/tex]