The equivalent value of the expression (-8)-4.(-8)² is 768
what is expression?An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.
Given:
(-8)-4.(-8)²
Using properties of integers
(-8-4)*(-8* -8)
=(-12) * (-64)
= 768
Hence, the equivalent value is 768.
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The formula to convert a temperature in degrees Fahrenheit (°F) to degrees Celsius (°C) is C = 5/9(F - 32). a. Solve the formula for F. Justify each step. b. Make a table that shows the conversion to Fahrenheit for each temperature: 0°C, 20°C, 32°C, and 41°C. c. Use your table to graph the temperature in degrees Fahrenheit as a function of the temperature in degrees Celsius. Is this a linear function?
a) F = (9/5)*C + 32
b)
0°C = 32°F 20°C = 68°F32°C = 89.6°F41°C = 105.8°Fc) The graph can be seen below, it is a linear function.
How to solve the formula for F?We have the formula:
C = (5/9)*(F - 32)
To solve it for F, we need to isolate the F in the formula:
F = (9/5)*C + 32
b) Now we want to convert some temperatures.
If C = 0° celcius, then:
F = (9/5)*0 + 32 = 32
This means that: 0°C = 32°F
if C = 20° Celcius, then:
F = (9/5)*20 + 32 = 68
then 20°C = 68°F
if C = 32°C then:
F = (9/5)*32 + 32 = 89.6°
So 32°C = 89.6°F
Finally, if C = 41°C then:
F = (9/5)*41 + 32 = 105.8
Then 41°C = 105.8°F
c) Here the function is:
F = (9/5)*C + 32
This clearly is a linear function, and the graph can be seen in the image below.
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Leslie has $30 to spend at an amusement park. She spent $9 on snacks. She wants to ride a roller coaster that costs $1.25 per ride. The inequality 9 1.2530rcan be used to determine r, the number of rides she can take. Which statements about the number of rides Leslie can take are true?
Select all that apply.
A.Leslie can take 16 rides on the roller coaster.
B.Leslie can take 17 rides on the roller coaster.
C.The minimum number of rides Leslie can take on the roller coaster is 9.
D.Leslie can take 9 rides on the roller coaster, but this number is neither the minimum nor the maximum.
Answer:
d is a answer there arer no more
Step-by-step explanation:
she can ride 14 rides
3.19x10^8 /8.23x10^5
Please show work
Answer:
257 is the answer
Step-by-step explanation:
If you take and divide 8.23 and 3.19 u come out with a big number but the first three are all that matter. then you need to subtract 8-5 and u get 2.579937 but since your exponent is only 10^3 you get 257.9937, but you can get rid of the numbers after 257.
Lisa walks at a speed of 3 25 miles per hour for 1 5 hours How many miles does she walk in all?
Answer:
I think it might be 21.6 or just 21
Answer:
For 1.5 hours of walking, she will walk a total of 4.875 miles.
Step-by-step explanation:
You multiply how long she was walking for by how many miles she can walk per hour, to find the total answer of how many miles she will walk.
solve each system of linear equations by substitution x+y=3 -x+y=5
Answer:
x = -1, y = 4
Step-by-step explanation:
x + y = 3
-x + y = 5
This means that y = 3 - x
We can substitute this value into the equation
-x + y = 5
-x + 3 - x = 5
3 - 2x = 5
Subtract 3 from both sides
-2x = 2
Divide both sides by -2
x = -1
Plugging this number into the equation, we have:
-1 + y = 3
Add 1 to both sides
y = 4
A company charger shipping fee that is 4.5% of the purchase price for all items it ships. What is the fe to ship an item that costs $56
Answer:
This is an percentage change question, by any chance you have a maths textbook, look for units that contains the topic: Percentage Change. Now, let's get solving! :)
Step-by-step explanation:
Firstly, you must multiply 4.5% with 56. That is: shipping fees x purchase price
That gives ($) 2.52 (this is your answer)
No addition/totaling needed as the question asked ONLY for the shipping fees.
Stay safe and Merry Christmas! :)
PLEASE HELP, PIC PROVIDED. Miguel has started running. He runs 1 mile the first week. His goal is to run 2 miles farther than his distance for the
previous week. What equation represents this scenario?
Is it the answer I chose?
Answer: A
Step-by-step explanation:
Miguel started running, and he runs 1 mile in the first week, then the equation will be y = 2x + 1. Hence, option A is correct.
What is an equation?Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
As per the given information in the question,
Miguel runs for 1 mile in the first week.
Then, his goal is to run 2 miles farther than his distance for the previous week.
Then the equation will be: y = 2x + 1
Here, y is the total distance and x is the number of miles.
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Find x , the angle of depression from the top of a lighthouse that is 173 ft above water level to the waterline of a ship 1119 ft off shore. Round your answer to the nearest tenth of a degree.
Answer:
arc tan (angle) = 1,119 / 173
arc tan (angle) = 6.4682080925
angle = 81.212 Degrees
Step-by-step explanation:
Three students failed their last test. If 12% of the class failed, how many students are in the class?
Answer:
There are 25 students in the class.
Step-by-step explanation:
Let x be the number of students in the class
12% failed and the number of students is 3
x*12% = 3
x*.12 = 3
Divide each side by .12
x * .12 /.12 = 3/.12
x =25
There are 25 students in the class
Answer:
25 students.
Step-by-step explanation:
12% is 3 students.
100% is the number of students in the class.
3 times 100 divided by 12 is 25.
So there are 25 students in the class.
5th grade
310
6th grade
305
7th grade
225
This chart shows the number of students going on field trips. For each trip, one adult is needed for every 15 students. How many adults are needed to go on the 7th grade field trip?
anyone know how to do tables?
what is 6775355 x 686878756 in math
Answer:
4.6538474e+15
Step-by-step explanation:
Helppppppppppppp pleaseeeeeeee
Circle theorems. Please help me solve for x.
Brainliest, thanks, points and 5 stars for whoever gets this correct and has the right working out.
Please Do not reply if you don’t know the answer
Answer: x = 50°
Step-by-step explanation:
According to the behavior of integer division, when an integer is divided by an integer, the result will be a float. True or false?.
Question:
According to the behavior of integer division, when an integer is divided by an integer, the result will be a float. True or false?
Answer: False
yall know how to do this?
writing equation line
Answer:
-----------------------------
^ ^
life Death
Use synthetic division to evaluate f(x)=-x^2-8x+30 for x=-1 .
f(-1)=
The value of f(-1) is "37".
synthetic division:[tex]\to f(x)=-x^2-8x+30\\\\\to x=-1\\\\\to f(-1)=?[/tex]
[tex]\to f(x)=-x^2-8x+30\\\\\to f(-1)=-(-1)^2-8(-1)+30\\\\\to f(-1)=-1+8+30\\\\\to f(-1)= 7+30\\\\\to f(-1)= 37\\[/tex]
Therefore, the final answer is "37".
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What is the equation of the line that passes through the point (5,3) and has a slope of -4/5
The equation of the line that passes through the point (5,3) and has a slope of -4/5 is,
⇒ 4x + 5y = 35
Here,
The given point is (5, 3) and slope is -4/5.
We have to find the equation of the line that passes through the point (5,3) and has a slope of -4/5.
What is Equation of line?
The equation of the line that passes through the point (a, b) and has a slope of m is;
⇒y - a = m (x - b)
Now,
The given point is (5, 3) and slope is -4/5.
Hence, The equation of the line that passes through the point (5,3) and has a slope of -4/5 is;
y - 3 = -4/5 (x - 5)
5 (y - 3) = -4 (x - 5)
5y - 15 = -4x + 20
4x + 5y = 20 + 15
4x + 5y = 35
Therefore, The equation of the line that passes through the point (5,3) and has a slope of -4/5 is
⇒ 4x + 5y = 35.
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The school is located 0.5 miles east of Raoul's house. The library is located 1.2 miles south of the school. What is the distance between Raou
house and the library?
miles
Answer:
1.7 miles
Step-by-step explanation:
Pythagoras' Theorem sets the relation between three sides of a right-angled triangle. The distance between Raoul's home and the library is 1.3 miles.
What is Pythagoras' Theorem?If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:
|AC|² = |AB|² + |BC|²
where |AB| = length of line segment AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the hypotenuse).
The school is located 0.5 miles east of Raoul's house. The library is located 1.2 miles south of the school. Therefore, the distance between the home and the library is the hypotenuse of the triangle formed.
AC² = AB² + BC²
AC² = 0.5² + 1.2²
AC = 1.3 miles
Hence, the distance between Raoul's home and the library is 1.3 miles.
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The weight y of a object on Jupiter is proportional to the weight x of the object on earth. An object that weighs 150 ponds on earth would weigh 378.2 ponds on Jupiter. Write a equation the situation then determine how Much a rock that weigh 12.64 on Jupiter would weigh on earth.
Answer:
5.02 pounds
Step-by-step explanation:
y = k*x
Where,
y = weight of a object on Jupiter
x = weight of the object on earth
k = constant of proportionality
An object that weighs 150 ponds on earth would weigh 378.2 ponds on Jupiter.
y = k*x
378.2 = k*150
378.2 = 150k
k = 378.2/150
= 2.5213
Approximately k = 2.52
determine how Much a rock that weigh 12.64 on Jupiter would weigh on earth
y = k*x
12.64 = 2.52*x
12.64 = 2.52x
x = 12.64 / 2.52
= 5.0159
Approximately x = 5.02 pounds
solve for x 7x + 18 > - 3
Answer:
If I'm correct, it's going to be x > -3
what is the value of x ?
The value of x in the shape is 111
How to determine the value of x?The shape is a heptagon
This is so because the shape has 7 sides
i.e. n = 7
The sum of angles in the shape is
Sum = 180(n - 2)
So, we have
Sum = 180(7 - 2)
Evaluate
Sum = 900
Also, the sum of angles in the shape is
Sum = x + 120 + 158 + 126 + 125 + 121 + 139
This gives
Sum = x + 789
So, we have
x + 789 = 900
Evaluate the like terms
x = 111
Hence, the value of x in the shape is 111
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Which one is correct please help
When would the product of the denominators and the least common denominator of the denominators be the same?
Answer:
Example 1:
Find the common denominator of the fractions.
16 and 38
We need to find the least common multiple of 6 and 8 . One way to do this is to list the multiples:
6,12,18,24−−,30,36,42,48,...8,16,24−−,32,40,48,...
The first number that occurs in both lists is 24 , so 24 is the LCM. So we use this as our common denominator.
Listing multiples is impractical for large numbers. Another way to find the LCM of two numbers is to divide their product by their greatest common factor ( GCF ).
Example 2:
Find the common denominator of the fractions.
512 and 215
The greatest common factor of 12 and 15 is 3 .
So, to find the least common multiple, divide the product by 3 .
12⋅153=3 ⋅ 4 ⋅ 153=60
If you can find a least common denominator, then you can rewrite the problem using equivalent fractions that have like denominators, so they are easy to add or subtract.
Example 3:
Add.
512+215
In the previous example, we found that the least common denominator was 60 .
Write each fraction as an equivalent fraction with the denominator 60 . To do this, we multiply both the numerator and denominator of the first fraction by 5 , and the numerator and denominator of the second fraction by 4 . (This is the same as multiplying by 1=55=44 , so it doesn't change the value.)
512=512⋅55=2560215=215⋅44=860
512+215=2560+860 =3360
Note that this method may not always give the result in lowest terms. In this case, we have to simplify.
=1130
The same idea can be used when there are variables in the fractions—that is, to add or subtract rational expressions .
Example 4:
Subtract.
12a−13b
The two expressions 2a and 3b have no common factors, so their least common multiple is simply their product: 2a⋅3b=6ab .
Rewrite the two fractions with 6ab in the denominator.
12a⋅3b3b=3b6ab13b⋅2a2a=2a6ab
Subtract.
12a−13b=3b6ab−2a6ab =3b − 2a6ab
Example 5:
Subtract.
x16−38x
16 and 8x have a common factor of 8 . So, to find the least common multiple, divide the product by 8 .
16⋅8x8=16x
The LCM is 16x . So, multiply the first expression by 1 in the form xx , and multiply the second expression by 1 in the form 22 .
x16⋅xx=x216x38x⋅22=616x
Subtract.
x16−38x=x216x−616x =x2 − 616x\
s(x)=-x+1
t(x)=-x²-1
find the value of t(s(2))
Answer:
t(s(2)) where s(x) = -x + 1, t(x) = -x^2 - 1 = -2
Step-by-step explanation:
If DF=61 and EF=18, find DE.
i need help pls i really need this
Answer:
B. (-5,7) → (-11,3)
T. (0,0) → (-7,2)
F. (0,2) → (5,-2)
A. (4,6) → (1,-3)
L. (-4,-4) → (-8,-2)
Step-by-step explanation:
B. -5 - 6 = -11
7 - 4 = 3
T. 0 - 7 = -7
0 + 2 = 2
F. 0 + 5 = 5
2 - 4 = -2
A. 4 - 3 = 1
6 - 9 = -4
L. -4 - 4 = -8
-4 + 2 = -2
Find the zeros of the following functions algebraically.
CAN SOMONE HELP ME ASAP
Answer:
14) -9 15) 4
Step-by-step explanation:
yes
Answer:
14.)-9 15.)4
Step-by-step explanation:
Three sticks of butter are needed for every 24 cookies.
How many cookies can be made with 5 sticks of butter?
Sticks of butter
Cookies
3
24
1
5
How many cookies can be made with 5 sticks of butter?
Answer:
40 cookies
Step-by-step explanation:
24÷3=8
8×5=40
PLSSS HELP WILL GIVE BRAINLIEST FOR FIRST CORRECT ANSWER!!!!!!!!!
If a fair die is rolled once, what is the probability of one
An odd number
A number greater than 2
A square number?
Answer:
A fair die has 6 sides.
There are 3 odd numbers on a fair die so the probability would be 3/6
There are 4 numbers greater than 2 on a fair die o the probability of that would be 4/6
There is only one number that will make it square and that is 4. So the probability would be 1/6