Answer:
92F
Step-by-step explanation:
the record high January temperature in Austin, Texas, is 90F. the record low January temperature is -2F. Find the difference between the high and low temperatures.
= 90 - (-2)
= 90 + 2
= 92F
chegg tell whether each sequence is arithmetic. if the sequence os arithmetic, identify the common difference and find the indicated term 3,5/2,3/2,-3/2,...
Take the 2nd term and minus the 1st term.
Now take the 3rd term and minus the 2nd term.
Notice that the differences are the same. Hence there is a common difference (difference of -0.5).
So it is an arithmetic sequence.
Driver A and B have two different routes. Driver A's route is 80km, and driver B's route is 100km. Driver B travels 10km/h faster than driver A and finishes 10 minutes earlier. What are the speeds of each driver?
Speed of Driver A is 30 km/h.
Speed of Driver B is 40 km/h
Define speed.The speed at which an object's location changes in any direction. The distance travelled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.
Given Data
Driver A and B have two different routes. Driver A's route is 80km, and driver B's route is 100km. Driver B travels 10km/h faster than driver A and finishes 10 minutes earlier.
Distance = Speed (Time)
Distance for Driver A: 80 kilometers
Consider Driver A's speed to be A km/h.
Driver A's time was [tex]\frac{80}{A}[/tex] hours.
Distance for Driver B is 100 kilometers
Speed of Driver B: A + 10 km/h
Driver B's time was equal to 100/(A + 10) hours.
Arrived 10 minutes early, or [tex]\frac{10}{60}[/tex], or [tex]\frac{1}{6}[/tex]hour.
100/(A + 10) = [tex]\frac{80}{A}[/tex] - [tex]\frac{1}{6}[/tex]
600A = 480(A + 10) - A(A + 10)
600A = 480A + 4800 - A² - 10A
A² +130A - 4800 = 0
A² + 160A - 30A - 4800 = 0
A(A + 160) - 30(A + 160) = 0
(A - 30)(A + 160) = 0
A = 30 since speed cannot be negative.
Speed of Driver A is 30 km/h.
Speed of Driver B: 40 km/h
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What is the quotient of 1.232 x 10⁸ and 3.85 x 10 expressed in scientific notation?
Answer:
3.2 x 10⁶
Explanation:
Given the quotient:
[tex]\frac{1.232\times10^8}{3.85\times10}[/tex]We can rewrite the expression by removing the decimals as follows:
[tex]=\frac{1232\times10^{-3}\times10^8}{385\times10^{-2}\times10}[/tex]Next, we rewrite the powers of 10 so we can cancel out common terms.
[tex]\begin{gathered} =\frac{1232}{385}\times\frac{(10^{-2}\times10^{-1})\times(10\times10^7)}{10^{-2}\times10} \\ \frac{1232}{385}\times10^{-1}\times10^7 \end{gathered}[/tex]Next, express the first fraction in the lowest possible form:
[tex]\begin{gathered} =\frac{16\times77}{5\times77}\times10^{-1}\times10^7 \\ =\frac{16}{5}\times10^{-1}\times10^7 \\ =3.2\times10^{-1+7} \\ =3.2\times10^6 \end{gathered}[/tex]The quotient expressed in scientific notation is 3.2 x 10⁶.
Stephen is in first grade, and his class is creating pasta necklaces! There are two types
of pasta to use on the necklaces: long macaroni pieces, and small rotelle pieces which
look like wheels w|th spokes. The directions are to have no more than 35 pieces of
hold 20 macaroni noodles or 55
pasta on a necklace, and each string IS long enough to
pieces of rotelle.
Select the statement below that is not true.
Stephen's necklace, to start can accommodate 12 macaroni noodles and 23 rotelle pieces.
Necklace of Stephen can have 35 rotelle pieces.
Stephen's pendant can have 10 pieces of rotelle and 5 macaroni noodles.
explanation:
-
Option A is accurate because 35 pieces of pasta—the maximum permitted per necklace—are obtained by adding 12 macaroni noodles to 23 pieces of rotelle.
Option B is incorrect because the sum of the allowed 35 pasta pieces plus the 15 macaroni noodles and 21 rotelle pieces equals 36 pasta pieces.
Option C is accurate because 35 pieces of Rotelle do not exceed the upper limit.
Despite the fact that they still add up to the maximum allowed, Option D is false since a string
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Using the following graph, write the equation of a line that is parallel to the given line and passes through the point (0, 0).
(Write your answer is slope intercept form. The y= is already typed for you, so only type the remainder of the equation using NO spaces!)
Answer:
y=-x
Step-by-step explanation:
Slope of the line = -1
Parallel line slope = -1, y intercept 0
y = -x
:]
the area A of a rectangle is represented by the formula A=lw where l is the length and w is the width. write an equation that makes it easy to find the width of the rectangle if we know the area and the length
Answer:
See below
Step-by-step explanation:
A = l w looking for w...... divide both sides of the equation by ' l '
A/l = w Done.
Solve p3 = −512.
answers are
p = ±8
p = −8
p = ±23
p = −23
Option b) p = -8 is correct, when p³ = 518.
Define cube root.A integer y such that y3 = x is known as the cube root of a number x in mathematics. All nonzero complex numbers have three different complex cube roots, while all nonzero real numbers have exactly one real cube root and two complex conjugate cube roots. We are aware that adding three times to any number yields the cube of that number. Additionally, the inverse action of cubing a number is known as the cube root of a number. For instance, 63 has a cube value of 216. In that case, 216's cube root is equal to 6.
Given,
Equation
p³ = -518
Multiplying cube root each side
p = -∛518
p = -8
Option b) p = -8 is correct, when p³ = 518.
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what is the slope to the perpendicular line to y=7/8x-9
In a sale, normal prices are reduced by 10%.
David bought a pair of trainers in the sale for £36.
What was the original price of the trainers?
In a sale, if the normal prices are reduced by 10% and David bought a pair of trainers in the sale for £36 then the marked price of these trainers was £40.
What is original price?Original price is said to be as the price that was fixed by the MSRP (i.e said to be the Manufacturer’s Suggested Retail Price).
In most of the case scenario, the original price would taken to be as always lower than the current price and then also in some other cases, original price and current price can be taken as the same.
How do you calculate the original price?First you have to convert the total percent discount to a decimal by dividing by 100% . Step 2: Set up the equation P=(1−d)x P = ( 1 – d ) x to find the original price of the item where P is the sale price, d is the discount as a decimal, and x is the original price of the item.
The selling price, may be that of a product or a service, is said to be as the customer or client’s final price
How do you find the original price from a discounted price calculator?To calculate the exact original price of a selected item, you have to divide the sale price by the value of 1 minus the entire value of the percentage off and then divided by 100.
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Find f(-9) if f(x) =1x -8
Hello!
To solve for f(-9)
==> must simply plug in '-9' into the x's position
==> [tex]f(-9) = 1(-9)-8=-9-8=-17[/tex]
Hope that helps!
PLEASEEE HELP first one to actually gets it right gets the crown thingy
Answer:
Step-by-step explanation:
Your first two photos are correct.
For your third photo, move your second dot one more to the right as you accidentally put 1.7 instead of 1.8.
For the first dot of -8/5 you should move it 8 more to the left. This is because:
-8/5 = -1 3/5 = -1.6
For your fourth photo
9/2 = 4 1/2 = 4.5
-7/2 = -3 1/2 = -3.5
For your fifth photo
-5 2/3 ≈ -5.66
5 1/3 ≈ 5.33
17/20= t + ( - 13/20) t = ?
Answer:
t = 3/2
Step-by-step explanation:
You want to know the value of t that satisfies 17/20= t + ( - 13/20).
SolutionAdd 13/20 to both sides of the equation.
17/20 +13/20 = t -13/20 +13/20
30/20 = t . . . . . simplify
3/2 = t . . . . . . . reduce the fraction
The solution is t = 3/2.
If
F(x)=3x-2
and
G(x)=x−5
, what is
F(x)⋅g(x)
The composite function f(x). g(x) is represented as 3x² - 17x + 10
How to find composite function?The composite function can be solved as follows:
f(x) = 3x - 2
g(x) = x - 5
Therefore, the composite function f(x). g(x) is as follows:
f(x). g(x) = f(x) × g(x)
Hence,
f(x) × g(x) = (3x - 2)(x - 5)
f(x) × g(x) = 3x² - 15x - 2x + 10
f(x) × g(x) = 3x² - 17x + 10
Therefore, the function f(x) × g(x) = 3x² - 17x + 10
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Help me! The average car on the highway can go 240 miles in 4 hours.
At this rate, how long would it take the average car to drive 1,200 miles?
A. 2 hours
B.20 hours
C. 200 hours
D. 2,000 hours
Please help asap it's going to go overdue if I don't get an answer ):
Cole drove from Los Angeles to San Francisco to visit friends.
Cole drove the speed limit which was 70 miles/hour. If Cole's
driving time for the trip was 6 hours, how many miles did Cole
drive?
Answer:
420 miles
Step-by-step explanation:
GivensWe are given that Cole drove a distance at a speed of 70 miles/hour. We are also shown that the driving time was 6 hours.
We are asked to find how many miles Cole drove.
SolveRealize that since the speed is constant, it can be multiplied by the driving time to find the mileage.
Therefore, multiply the speed limit by the driving time:
[tex]\text{70 miles/hour} \times \text{6 hours} = \text{420 miles}[/tex]
Final AnswerTherefore, Cole drove 420 miles.
Answer:
420 miles
Step-by-step explanation:
Is known:
70 miles / hour
Question:
how many miles will it cover in 6 hours?
70mil/jam × 6 hour
= 420 miles
StudyForEducation.
use the data in attend for this exercise. (i) in the model of example 6.3, argue that dstndfnl/dprigpa < b2 1 2b4 prigpa 1 b6atndrte. use equation (6.19) to estimate the partial effect when prigpa 5 2.59 and atndrte 5 82. interpret your estimate
These are the coefficients of x1 and x2 respectively, and helps us to know the the significance of the independent variable in predicting the independent variable.
We are given the following information:
The estimate regression equation for a model involving two independent variables and 10 observations follows:
y= 29.1270+0.5906x1+0.4980x2
where x1 and x2 are the two independent variable and y is the dependent variable.
a) The regression line is of the form:
y=b0+b1 x1+b2 x2
where b0 is the y intercept and b1 , b2 are the coefficients of x1 and x2
Comparing, we get,
b1 = 0.5906
b2= 0.4980
These are the coefficients of x1 and x2 respectively, and helps us to know the the significance of the independent variable in predicting the independent variable.
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Hello! I need some assistance with this homework question, pleaseQ7
You have the following function:
[tex]f(x)=x^2+8[/tex]In order to calculate
[tex]\frac{f(x+h)-f(x)}{h}[/tex]Consider that f(x + h) is given by:
[tex]f(x+h)=(x+h)^2+8=x^2+2xh+h^2[/tex]Then, by replacing f(x) and f(x+h) into the difference quotient and by simplifying, you get:
[tex]\begin{gathered} \frac{f(x+h)-f(x)}{h}=\frac{x^2+2xh+h^2+8-x^2-8}{h} \\ \frac{f(x+h)-f(x)}{h}=\frac{2xh+h^2}{h}=\frac{h(2x+h)}{h}=2x+h \end{gathered}[/tex]Hence, the result to the quotient difference is 2x + h
Find each missing measure
1. En los siguientes problemas, los puntos A, B, C forman siempre un triángulo rectángulo, encuentra el valor pedido en cada caso. Utiliza si es necesario
Las medidas de los lados desconocidos de las tres figuras son listadas abajo:
A) AC = 3
B) AC = 13
C) AB = 17
¿Cómo determinar los lados desconocidos de triángulos y rectángulos?
En este problema tenemos que dos casos de triángulos rectángulos y un caso de rectángulo. Por geometría euclídea, un rectángulo se forma uniendo dos triángulos rectángulos de iguales medidas. Las medidas de los lados faltantes se determina con el teorema de Pitágoras:
Caso A - Triángulo rectángulo
AC = √(BC² - AB²)
AC = √(5² - 3²)
AC = √(25 - 16)
AC = √9
AC = 3
Caso B - Rectángulo
AB = DC
AC = √(AD² + DC²)
AC = √(AD² + AB²)
AC = √(5² + 12²)
AC = 13
Caso C - Triángulo rectángulo
AB = √(AC² + BC²)
AB = √(8² + 15²)
AB = 17
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Select the correct answer. The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation: 2n + 1 = 157. What is the first number?
Answer:
78
Step-by-step explanation:
2n + 1 = 157
2n = 157 - 1
2n = 156
n = 156 ÷ 2
n = 78
An orca is swimming at the surface of the water and dives below the surface 25.5 feet. Then the orca swims up 1214feet. What is the location of the orca relative to the surface of the water?
i
If an orca is swimming at the surface of the water and dives below the surface 25.5 feet. Then the orca swims up [tex]12\frac{1}{4}[/tex] , then the location of the orca relative to the surface of the water is 13.25 feet below the surface of water
The depth he dives below the surface = 25.5 feet
The the orca swims up [tex]12\frac{1}{4}[/tex] feet
Convert the mixed fraction to simple fraction
[tex]12\frac{1}{4}[/tex] feet = 49/4 feet
Convert the simple fraction to the decimal number
49/4 feet = 12.25 feet
The distance orca dives below will consider as negative and the distance swims up will considered as positive
Then the position of orca = -25.5+12.25
= -13.25
Hence, if an orca is swimming at the surface of the water and dives below the surface 25.5 feet. Then the orca swims up [tex]12\frac{1}{4}[/tex] , then the location of the orca relative to the surface of the water is 13.25 feet below the surface of water
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Is this graph a function?
Answer:
It is a function
Step-by-step explanation:
To know whether a graph is a function or not we practice vertical line test.
If the vertical line drawed touches the graph only at one point then we can confirm it's a function.
in the computer game world of warcraft, some of the strikes are critical strikes, which do more damage. assume that the probability of a critical strike is the same for every attack, and that attacks are independent. during a particular fight, a character has 243 critical strikes out of 534 attacks.
Answer: whats the question?
Step-by-step explanation:
2x7(2•2)^2 14-9
what is the answer
Answer:
3127Step-by-step explanation:
2x7(2•2)^2 14-9
what is the answer
2*7(2*2)^2 14-9 = (remember PEMDAS)
2*7*16*14-9=
14 * 16 * 14 -9=
224*14 -9=
3136 -9=
3127
What is the density for an unknown liquid with a mass of 6 grams and a volume of 12 mL?.
1) Considering that
[tex]undefined[/tex]What is the graph of 5y- 15x =30
A graph of this linear function (y = 3x + 6) is shown in the image attached below.
What is a graph?A graph can be defined as a type of chart that is commonly used for the graphical representation of data on both the horizontal line (x-axis) and vertical line (y-axis) of a cartesian coordinate.
Next, we would simplify the given linear function by dividing all through by 5 as follows:
5y - 15x = 30
5y/5 - 15x/5 = 30/5
y - 3x = 6
Rearranging the linear function, we have:
y = 3x + 6
In this context, we can reasonably and logically deduce that only the graph of a proportional relationship such as a linear function is always characterized by a straight line with all of the data points passing through the origin (0, 0).
In conclusion, a graph which represents the given linear function does not show a proportional relationship between the value of x and y.
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Picture kansnaiks snaijskxkxkks
Answer:
I said right foot creep looking in that heat make sure it stay low make sure they don't see the devil under your feet your on the way to see em
this question don't make sense
what is the slope of a line perpendicular to the line whose equation is x+4=28
The slope of a line perpendicular to the line is -4
The equation is x -4y = 28
The equation for the line is
y = mx + c
where m = slope
c = y-intercept
Here the equation is x - 4y = 28
4y = x - 28
y = x/4 - 7
So the slope of this line is 1/4
Now we have to find the slope of the line perpendicular to that line.
We know that,
m1 × m2 = -1
1/4 × m2 = -1
m2 = -4
Therefore the slope of the line perpendicular to the line is -4.
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The complete question is:
Find the slope of a line perpendicular to x-4y=28
pls help will give brainliest
Answer: The answer for X' is -1,8, and the answer for X'' is 3,14
Step-by-step explanation:
When talking about reflections across the x-axis, the formula would be: (x,y)---> (x, -y) so you first start out with -1, -8 then translate it to -1,8, because you swap the y. Then you add 4 to -1 because you move 4 to the right which gives you 3, and then you add 6 to 8 because you move up 6, which gives you 14, so your final answer is 3,14