Answer:
-2.8 / 4
Step-by-step explanation:
The equivalent expression for the change in the goat's temperature each hour is A = -0.7°F/hour
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let's say the initial temperature of the goat was T1, and the final temperature after 4 hours was T2.
Now , the total change in temperature over the 4 hours is:
T2 - T1 = -2.8°F
The average change in temperature per hour can be expressed as:
The average change in temperature per hour = total change in temperature / number of hours
The average change in temperature per hour = (-2.8°F) / 4 hours
On simplifying the equation , we get
The average change in temperature per hour = -0.7°F/hour
Hence , the expression for the average change in the goat's temperature each hour is A = -0.7°F/hour
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you can helps me?
f(x) = x + 1
g(x) = x - 1
(f o g)(x) = ?
»(f o g)(x)
»f(g(x))
»f(x - 1)
»x - 1 + 1
»x✅
Answer:
fg(x) = x
Given items:
f(x) = x + 1g(x) = x - 1solve for fg(x):
→ f g(x)
→ f(x - 1)
→ (x - 1) + 1
→ x
note: go form right to left in such function problems.
What is an equation of the line that passes through the points
(
−
5
,
3
)
(−5,3) and
(
5
,
5
)
(5,5)
Answer:
x -5y = -20
Step-by-step explanation:
One way to write the equation for a line through two points is to use the slope formula. The slope is the same everywhere on a line, so the slope between the given points is the same as the slope between one of them and the general (x, y) point.
m = (y2 -y1)/(x2 -x1)
m = (5 -3)/(5 -(-5)) = (y -3)/(x -(-5))
2/10 = (y -3)/(x +5)
x +5 = 5(y -3) . . . . . . . multiply by 5(x+5)
x -5y = -20 . . . . . . rearranged to standard form
Tara has 4 and 4 over 5 feet of rope.
Part A: How many 2 over 5 foot pieces can Tara cut from the 4 and 4 over 5 feet of rope? Show your work. (5 points)
Part B: Using the information in Part A, interpret the meaning of the quotient in terms of the two fractions given. (5 points)
Answer:
Part A: 4 4/5 = 24/5
24/5 / 2/5 = 24/5 * 5/2 = 12 pieces
Part B:
Quotient means the number obtained by dividing one number by another. In this case, it is 4 4/5 and 2/5. If the quotient is a whole number, then the number that is divided by another number is divisible by the other number
Fraction form 60 to 81 inches
Answer:
20/27
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator
GCD of 60 and 81 is 3
Divide both the numerator and denominator by the GCD
60 ÷ 3
----------
81 ÷ 3
Reduced fraction:
20/27
Therefore, 60/81 simplified to lowest terms is 20/27.
hope that helps.
Answer:
The simplified fraction form is [tex]\frac{20}{27}[/tex].
Step-by-step explanation:
[tex]\frac{60}{81} = \frac{20}{27}[/tex]
what is 75percent of 200
Answer:
150
Step-by-step explanation:
Kevin and Randy Muise have a jar containing 46 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $7.10. How many of each type of coin do they have?
Answers:
24 quarters
22 nickels
==========================================================
Work Shown:
q = number of quarters
n = number of nickels
q+n = 46 coins total which solves to n = 46-q
25q = value of all the quarters in cents
5n = value of all the nickels in cents
25q+5n = value (cents) of all the coins of both types
25q+5n = 710 cents total = $7.10
-------------
Apply substitution.
25q+5n = 710
25q+5(46-q) = 710
25q+230-5q = 710
20q+230 = 710
20q = 710-230
20q = 480
q = 480/20
q = 24
They have 24 quarters
This yields 25*q = 25*24 = 600 cents = $6.00 so far.
Use that value of q to find n
n = 46-q
n = 46-24
n = 22
They also have 22 nickels.
They have an additional 5n = 5*22 = 110 cents = $1.10
In total, they have 6.00+1.10 = 7.10 dollars which confirms we have the correct coin counts. Also, q+n = 24+22 = 46.
Complete the table for the given function. y = x^2 + (-3)
Answer:
1-1=2
4÷2=2
2÷2=1
69+69=138
100+100=200
7-4=3
how to solve this equation
Answer:
See below.
Step-by-step explanation:
The closest numbers I could find were 26+26, and 24+28.
-hope it helps
Answer:
25 and 27
Step-by-step explanation:
given two number are X+2,X+4
X+2+X+4=52
2x+6=52
2X=52-6
X=46/2
X=23
X+2=23+2=25
X+4=23+4=27
hope this will help you
Write an equation based on the graph. Please help 15 points!
Answer should be:
y = -3x - 3
Answer:
The equation is y = - 3x - 3
Step-by-step explanation:
Step 1:
Equations always start with y = (unless you are in grade 11) in which case you start with f(x) =
Step 2:
Use rise over run to find the slope (since its based on graph, if not there is a formula to find it when given coordinate points only)
So to use rise over run, you count how many squares upwards starting from a point that aligns in the graph (in this case the bolded dots)
So you start at (-2, 3) and count how many squares up or down to the next bolded dot (if its up its positive, if you have to go down then its negative).
Then once youve reached the same y-value as the the other dot, count how many squares to the right.
So in this case, you have to go down 6 times and right 2 times.
So as a fraction its -6/2 but that can be simplified to just -3
So thats the slope: -3
Step 3
then you need to find the y-intercept (where the line touches the y-axis)
Its easy: you can visually see that the line crosses at -3.
and the format for the equation is y = mx + b
m = slope
b= y-intercept
SO: y= -3x - 3
Brainliest?
Simplify (7+9) + (4x5)
Answer:
36
Step-by-step explanation:
Do the brackets first:
(7+9)=16
(4×5)=20
Now we add our 2 brackets to get our final answer
16+20=36
I don't have a question but my geometry homework on mathxl had this same question and I put that answer and it was wrong.
OOOF! I would send a screenshot to my teacher if that happened. Online math sometimes does that. On maths watch I answered correctly but it doesn't accept the answer. Its so annoying
Solve trigonometric function
cos2∅ + sin∅ × csc∅ / sin2∅
Answer:
[tex]\cot(\theta)[/tex]
Step-by-step explanation:
Trig identities:
[tex]\csc(\theta)=\dfrac{1}{\sin(\theta)}[/tex]
[tex]sin^2(\theta)+cos^2(\theta)=1[/tex]
[tex]\cos(2\theta)=cos^2(\theta)-sin^2(\theta)[/tex]
[tex]\implies \cos(2\theta)=2cos^2(\theta)-1[/tex]
[tex]\implies2cos^2(\theta)= \cos(2\theta)+1[/tex]
[tex]\sin(2\theta)=2\sin(\theta)\cos(\theta)[/tex]
Therefore,
[tex]\dfrac{\cos(2\theta)+\sin(\theta) \times \csc(\theta)}{\sin(2\theta)}[/tex]
[tex]=\dfrac{\cos(2\theta)+\dfrac{\sin(\theta)}{\sin(\theta)}}{\sin(2\theta)}[/tex]
[tex]=\dfrac{\cos(2\theta)+1}{\sin(2\theta)}[/tex]
[tex]=\dfrac{2cos^2(\theta)}{\sin(2\theta)}[/tex]
[tex]=\dfrac{2cos^2(\theta)}{2\sin(\theta)\cos(\theta)}[/tex]
[tex]=\dfrac{cos(\theta)}{\sin(\theta)}[/tex]
[tex]=\cot(\theta)[/tex]
Help me please!!!
X=?
Y=?
Answer:
x=45
y=6
Step-by-step explanation
18 out of 25 students have a pet. What percent have a pet?
Answer:
72%
Step-by-step explanation:
18/25 x 4= 72/100
=72%
Answer:
72%
Step-by-step explanation:
To convert fractions into percentages we could change to decimal and then multiply by 100 but it would be easier to just make the fraction's denominator to 100 by finding an equivalent fraction:
18/25 = 18×4/25×4
72/100
So 72% of students have a pet
If 2/3 of N it’s 4 then 1/2 of N is
Answer:
3
Step-by-step explanation:
N*(2/3)=4
N=4*(3/2)=6
1/2 of N is 3
If the 2/3rd fraction of N is 4, then 1/2 fraction of N is 3.
What are fractions?Fractions are representations of equal parts of a whole number.
It is written as a/b, read as "a by b", and represents 'a' equal parts of 'b' equal parts.
'a' is called the numerator, and 'b' is called the denominator.
How to solve the question?In the question, we are asked if 2/3 N is 4, then what is 1/2 of N.
We can represent the first fractional expression as:
2/3 of N = 4.
Now, we will solve the above expression by replacing of with multiplication.
2/3 * N = 4,
or, 2N/3 = 4.
Now, we will cross-multiply to get:
N = (4*3)/2 = 6.
Now, we are asked to find 1/2 of N.
We simply multiply (1/2) to the value of N:
(1/2)*N = (1/2)*6 = 3.
Thus, if the 2/3rd fraction of N is 4, then 1/2 fraction of N is 3.
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A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to flour tortillas is 3:4. What is the ratio of flour tortillas
to total tortillas?
4:10
3:7
3:10
4:7
4:7
Step-by-step explanation:
The ratio of the number of corn tortillas to flour tortillas is 3:4. So this means there are at least 3 corn tortillas and 4 flour tortillas.
We need to add 3 and 4 to see the simplified total of tortillas. 3+4=7.
There is a total of 7 tortillas regardless of their type.
Now we just need to compare this with the number they already gave us for flour tortillas, which is 4.
4:7 or 4 flour:7 in total
The ratio of flour tortillas to total tortillas is 4:7.
Please help fasttttttttt
Answer:
1
Step-by-step explanation:
1 that is to the power of 0 is 1
According to the 10% savings rule that automatically adjusts to your earnings, how much would you save if your check showed earnings of $187.45?
A.
$1.87
B.
$9.37
C.
$18.75
D.
$37.49
The amount of the money that goes into savings is $18.75.
What is savings?The term savings refers to a portion of your income that you set aside for a particular purpose which is safe keeping for the future.
We are told in the question that 10% of the income goes into savings. If the income is $187.45, then the savings is;
Savings = 10/100 * $187.45 = $18.75
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3.Divide 30 stickers between Hema and Rekha in the ratio 3:7. How many stickers will Rekha nd Hima get?
Answer:
Hema - 9 stickers Rekha - 21 stickers
Step-by-step explanation:
Total Number of stickers given - 30
Ratio of stickers divided between Hema and Rekha - 3:7
Let the number of stickers Hema have be 3x
Let the nunber of stickers Rekha have be 7x
According to question,
3x+7x=30
10x=30
x=30/10
x=3
Therefore,
Number of stickers Hema got = 3x
= 3*3
= 9
Number of stickers Rekha got = 7x
= 7*3
= 21
Hence,
Hema will get 9 stickers
Rekha will get 21 stickers
given the geometric series: 5×(3)⁴+5(3)³+5(3)²
explain why the series converges
Answer:
[tex]45*(9x^2+4)[/tex]
Step-by-step explanation:
STEP
1
:
Equation at the end of step
1
:
((5x2•(34))+(5•(33)))+(5•32)
STEP
2
:
Equation at the end of step 2
((5x2•(34))+(5•(33)))+(5•32)
STEP
3
:
Equation at the end of step
3
:
((5x2 • (34)) + (5 • 33)) + (5•32)
STEP
4
:
Equation at the end of step 4
((5x2 • (34)) + (5•33)) + (5•32)
STEP
5
:
Equation at the end of step
5
:
((5x2 • 34) + (5•33)) + (5•32)
STEP
6
:
Equation at the end of step 6
((5•34x2) + (5•33)) + (5•32)
STEP
7
:
STEP
8
:
Pulling out like terms
8.1 Pull out like factors :
405x2 + 180 = 45 • (9x2 + 4)
Polynomial Roots Calculator :
8.2 Find roots (zeroes) of : F(x) = 9x2 + 4
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers
The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient
In this case, the Leading Coefficient is 9 and the Trailing Constant is 4.
The factor(s) are:
of the Leading Coefficient : 1,3 ,9
of the Trailing Constant : 1 ,2 ,4
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 13.00
-1 3 -0.33 5.00
-1 9 -0.11 4.11
-2 1 -2.00 40.00
-2 3 -0.67 8.00
Note - For tidiness, printing of 13 checks which found no root was suppressed
Polynomial Roots Calculator found no rational roots
Final result :
45 • (9x2 + 4)
Explain in your own words how you determine what the cooresponding parts are of a
triangle
Please help!!!!!!!!!!!
Step-by-step explanation:
Corresponding angles and sides are listed in the same position when 2 triangles are either given congruent or asked to be proven congruent.
For example triangle ABC and triangle XYZ
Corresponding sides are AB and XY, BC and YZ, AC and XZ
corresponding angles are angle A and angle X and so on....
supplementary angles. If m
∠
A
=
(
6
x
−
30
)
∘
∠A=(6x−30)
∘
and m
∠
B
=
(
8
x
+
28
)
∘
∠B=(8x+28)
∘
, then find the measure of
∠
A
∠A.
Answer:
Jouc ÷4 i for number 69263
hope it helps
PLEASE HELP ME WITH THIS KHAN ITS NOT HARD IM JUST TIRED
I did 5 hours of Khan if you feel me
Answer:
It 2/4
Step-by-step explanation:
t 2/4 because on the graph the lines is on 2/4
The surface area of a balloon varies directly as the
square of mits radius. The area is 325 in? when the
radius is 5 in. What is the area when the radius is
7 in.?
Using a proportional relationship, it is found that the area is of 637 square inches when the radius is of 7 inches.
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
[tex]y = kx[/tex]
In which k is the constant of proportionality.
In this problem, the surface area of a balloon varies directly as the square of mits radius, hence:
[tex]S = kr^2[/tex]
The area is 325 in² when the radius is 5 in, hence we use it to find r.
[tex]S = kr^2[/tex]
[tex]325 = 25k[/tex]
[tex]k = 13[/tex]
Hence:
[tex]S = 13r^2[/tex]
When the radius is of r = 7 in, the area in square inches is given by:
[tex]S = 13r^2 = 13 \times 49 = 637[/tex]
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M4.2. The fabrication department for an automobile component plant is scheduling its work for next month. The plant produces the following four components: A1, B2, C3, and D4. Each component must go through three departments during the fabrication process. After fabrication, each valve is inspected by a human being, who spends 15 minutes per valve. There are 450 inspection hours available for the month. The time required (in hours) for each department to work on each component is shown in the following table. Also shown are the minimum number of components that must be produced for the month and the unit profit for each component. Formulate and solve the problem in Excel to determine the number of each product to manufacture that meets the requirements and maximizes profits. I need help finding the inspection values. My Optimal Solution should be 21,000.
Assignm Active Identifying Coordinates y N The coordinates of Point Pare 2 The coordinates of Point T are 1 Point is located at (2,-2 22) S P x -2 -1 1 N T -1 -2 R
Answer:
this is what I am thinking
sorry if it is wrong
Step-by-step explanation:
The coordinates of Point P are (0,2.5)
The coordinates of Point T are (1.5,1.5)
Pls help me figure out this question
Answer:
-19 + 5x
Step-by-step explanation:
-0.20(95 -30x) - x = (-0.20*95) + [ (-0.20)*(-30x)] - x
= - 19 + 6x - x
= -19 + 5x
Prove: triangle BAD is congruent to triangle CDA
Step
Statement
Reason
BD AC
BA= DC
Given
2
ZBEA UCED
Vertical angles are congruent
3
ZBEC ZAED
Vertical angles are congruent
4
AC - AC
Reflexive Property
5
BD BD
Reflexive Property
try
Type of Statement
B
с
A
hope you will like it
Anthony has a lunch account in the school cafeteria. The balance, g(x), in his account at the beginning of the month can be represented by the function g(x) = -2.50x +32, where x is the number of meals purchased. 1. How much money was in Anthony's account at the beginning of the month? 2. What is the slope of the graph of this function? 3. What does the slope represent in the context of the problem? 4. Find g(x) when x =11. What does this pair of values mean in the context of the problem?
Which option is a better deal? 12 ounces of cereal for $2.99 or 17ounces of cereal for $3.52
Answer:
17 ounce cereal
Step-by-step explanation:
It is only a 53. cent difference so the better option would be the 17 ounce bag