Chad complained to his friend that he had five equations to solve for homework. Are all of the homework problems equations? Justify your answer.
Answer:
Chad's claim is incorrect
Step-by-step explanation:
The homework problems that complete the question are:
[tex]3x^2.2x^4[/tex]
[tex]5 - 2x = 3x[/tex]
[tex]3(2x + 7)[/tex]
[tex]7x^2 +2x -3x^2 -9[/tex]
[tex]\frac{2}{3} = \frac{x+2}{6}[/tex]
Required
Is Char right?
From the homework problems above, there are 5 mathematical problems
So:
Chad's claim that he had 5 equations.
A mathematical expression is an equation if it has an = sign
So for Chad's claim to be correct; at least 4 of the mathematical problems must have an = sign
By the explanation done above, we have the following observations
[tex]3x^2.2x^4[/tex] -> No Equation
[tex]5 - 2x = 3x[/tex] -> Equation
[tex]3(2x + 7)[/tex] -> No Equation
[tex]7x^2 +2x -3x^2 -9[/tex] -> No Equation
[tex]\frac{2}{3} = \frac{x+2}{6}[/tex] -> Equation
Apparently, only 2 of the 5 problems are equation.
Hence, Chad's claim is incorrect.
Solve nine times two thirds .
Leave your answer as an improper fraction. (4 points)
a
eleven twenty sevenths
b
eighteen twenty sevenths
c
eleven thirds
d
eighteen thirds
Answer: D eighteen thirds
Step-by-step explanation:
You can aslo solve it as 9/1 *2/3 all you would need to do is multiply 9*2 with is eighteen
Answer:
it should be 18/3
Step-by-step explanation:
Figure ABCD is a trapezoid. Find
the value of x.
Answer:
Step-by-step explanation:
because we have a kite,
AB=AD
4x=x+15
4x-x=15
3x=15
x=5
Guys please help me with this question
Answer:
Colin will have to wait for 2 hours for the pond to completely empty
Step-by-step explanation:
Volume of a Prism
The volume of a prism of base area Ab and height H is computed with the formula:
V=Ab.H
We are given a pond in the shape of a prism with a trapezoidal base (front view).
The area of a trapezoid of bases b1 and b2, and height a, is given by:
[tex]\displaystyle A_b=\frac{b_1+b_2}{2}.a[/tex]
The parallel bases of the trapezoid have measures of b1=0.6 m and b2=1.4 m, and the height is a=2 m, thus the area is:
[tex]\displaystyle A_b=\frac{0.6+1.4}{2}*2[/tex]
[tex]A_b=2\ m^2[/tex]
The height of the prism is H=1m, thus the volume of the pond is:
[tex]V=2\ m^2*1\ m[/tex]
[tex]V=2\ m^3[/tex]
It's also known the level of the pond goes down by 20 cm (0.2 m) in the first 30 minutes. Note at this moment the level is still at the rectangular prism zone of the pond, thus the volume of water is calculated as the area of the face of water by the height it went down:
[tex]V_w=1\ m*2\ m*0.2\ m = 0.4\ m^3[/tex]
The pond still has this volume of water:
[tex]V_p=2\ m^3-0.4\ m^3=1.6\ m^3[/tex]
The pond was drained [tex]0.4\ m^3[/tex] in 30 minutes, thus the rest of the water will be taken out in
[tex]\frac{1.6}{0.4}*30 =120\ min[/tex]
Thus, Colin will have to wait for 2 hours for the pond to completely empty
ldentify the domain and range of each function.
y=3•5
The domain of this function is
The range of this function is
Answer:
The domain of this function is:
C.) Negative infinity to infinity
The range of this function is:
A.) 0 to infinity
Y=4^x-5+3
The domain of this function is:
C.) Negative infinity to infinity
The range of this function is:
B.) 3 to infinity
Answer:
Answer:
Domain : R
Range : R
Step-by-step explanation:
The given function is or it can be written as y = 15x.
So, the function is valid for all real values of x and we will get the real value of y for each real value od x.
Hence, all the real numbers or R is the domain of the function.
And all the real numbers or R is the range of the given function. (Answer)
the domain is the set of x -values, the range is the set of y-values. I would have to say the domain is : R [ negative intinity, to infinity]. Equally, I would have to say the range is R [ Negative infinity, to infinity]
Step-by-step explanation:
Why, because no set is defined for either x or y.
In a coordinate plane, draw the figures with the given vertices. Which figures are similar? Explain your reasoning. Triangle A: (0,0), (4,0), (4,2), (0,2) Triangle B: (0,0), (-6,0), (-6,3), (0,3) Triangle C: (0,0), (4,0), (4,2), (0,2)
Answer:
B
Step-by-step explanation:
Solve 4(2x/3+8)=40 X=?
Side note: 2x/3 is a fraction
9514 1404 393
Answer:
x = 3
Step-by-step explanation:
Undo what has been done to the variable.
4(2x/3 +8) = 40
2x/3 +8 = 10 . . . . . divide by 4
2x/3 = 2 . . . . . . . . . subtract 8
x = 3 . . . . . . . . . . . . multiply by 3/2
Sheleah and her family are planning a trip from Los Angeles, California to Melbourne, Australia. While booking her family's plane tickets, she notices on the itinerary that the airline is offering a sixteen hour straight flight from Los Angeles to Melbourne on a Boeing 747-8 Intercontinental Jet. In an effort to learn more about the capabilities of the Jet, Sheleah does a little research and stumbles upon the following graph and facts about the Jet's gasoline consumption.
The Boeing 747-8 Intercontinental Jet can carry approximately 422,000 gallons of gasoline, making it possible for the jet to travel 14,430 kilometers before needing to refuel.
Use a linear model to predict the amount of gasoline that is present on the Jet after it has been in flight for 18 hours without stopping to refuel. In two or more complete sentences, explain your answer.
The prediction of the amount of gasoline that is present on the Jet after it has been in flight for 18 hours without stopping to refuel is given as follows:
-52,750 gallons.
(as the estimate is negative, it means that the plane has to stop to refuel before that).
How to define the linear function?The linear function for this problem is defined in slope-intercept format, as follows:
y = mx + b.
The coefficients of the function are given as follows:
m is the slope, which is the gasoline spending per hour.b is the y-intercept, which is the initial amount of gasoline.The graph touches the y-axis at y = 422,000, hence the intercept b of the function is given as follows:
b = 422000.
When x = 2, y = 369250, hence the slope m is calculated as follows:
m = (369250 - 422000)/2 = -26375.
Then the linear function giving the amount of gasoline present after x hours is of:
y = -26375x + 422000.
After 18 hours, the estimate of the amount of gasoline in the tank is given as follows:
y = -26375(18) + 422000 = -52,750 gallons.
More can be learned about linear functions at https://brainly.com/question/24808124
#SPJ1
Amber got a raise from $100 per week to $200 per week. What is the percent increase?
its a 100% increase since the amount completely doubled
hope this helps!!
Answer:
It is a 100% increase
Step-by-step explanation:
help please
Determine whether the triangles are congruent. If so, name the postulate or theorem that justifies your answer. If not, explain.
Are the triangles congruent or not congruent? If they are, identify by what postulate or theorem.
A.The triangles are congruent by the AAS Postulate.
B. The triangles are congruent by the SSS Postulate.
C. The triangle are not necessarily congruent. Not enough information is provided.
D. The triangles are congruent by the SAS Postulate.
The triangles are congruent by the SAS Postulate.
What are congruent triangles?A closed polygon made of three line portions shaping three points is known as a Triangle.
If the sides of two triangles are the same length and the angles are the same size, they are said to be congruent. As a result, it is possible to superimpose two triangles side by side and angle by angle.
Given triangles
ΔUTS and ΔRTS
which shows
UT and RS are parallel
and TS is common side
so ∠UTS = ∠RST
by UT ║ RS (side)
∠UTS = ∠RST (angle)
TS = TS (common side)
ΔUTS ≅ ΔRTS
by SAS postulate
Hence Triangles are congruent.
Learn more about congruent triangles;
https://brainly.com/question/12413243
#SPJ2
Traveling on the express train from New York to Baltimore takes approximately 2 hours and 45 minutes. The local train travels the same route from New York to Baltimore and takes approximately 3 hours and 40 minutes. Rounding to the nearest tenth, how many times as long is the journey time of the local train as the journey time of the express train?
Answer:
The local train's journey time is 1.3 times as long as the journey time of the express train.
Step-by-step explanation:
Given that:
Travelling time of express train = 2 hours and 45 minutes
We will convert this time into minutes
Travelling time of express train = 2*60 + 45 = 120+45 = 165 minutes
Travelling time of local train = 3 hours and 40 minutes = 220 minutes
Let,
n be the number of times.
Local train travelling time = Number of times * Express train travelling time
220 = n * 165
Dividing both sides by 165
[tex]\frac{220}{165}=\frac{165n}{165}\\1.3 = n[/tex]
Hence,
The local train's journey time is 1.3 times as long as the journey time of the express train.
Abby's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store, fabric is sold by the foot. If Abby's curtain company wants to make 55 curtains, how many feet of fabric will she need? 1 inch = 1 12 foot
Answer:
220 ft
Step-by-step explanation:
Given that:
Length of each curtain = 48 inches
Number of curtains required for Abby's curtain company = 55
Fabric of curtains is sold by the fabric store foot by foot.
Unit for conversion:
1 inch = [tex]\frac{1}{12}[/tex] foot
To find:
The fabric (in feet) needed by Abby.
Solution:
First of all, let us convert the length of each curtain (which is given in inches) to feet.
As per given hint:
1 inch = [tex]\frac{1}{12}[/tex] foot
48 inches = [tex]\frac{1}{12}[/tex] [tex]\times[/tex] 48 ft = 4 ft
So, length of one curtain is 4 ft.
Now, number of curtains required are 55.
Therefore, total length of curtains required can be found by multiplying the number of curtains with the length of one curtain.
Total length of curtain required = 55 [tex]\times[/tex] 4 = 220 ft
P/5 + 6 = 10
1. 44
2. 30
3. 20
4. -20
What one
Answer:
20
Step-by-step explanation:
P/5 + 6 = 10
P/5 = 10 - 6
P/5 = 4
(cross multiply)
P = 5 × 4
P = 20
What is 10290292029029298383746473536256353773637363763737373773736366363536536343637825231+100000
answer:
1.0290292e+82
Step-by-step explanation:
asked my bed
Which statement describes the translation from the graph y=|x| to the graph y=|x+3|-4?
A) shift 3 units left and 4 units up
B) shift 3 units left and 4 units down
C) shift 4 units right and 3 units down
D) shift 3 units right and 4 units down
Answer:
B) shift 3 units left and 4 units down
A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work?
Given gh2 + g2h, the factors of the first term are g, h, and h2, and the factors of the second term are g, g2, and h. Thus, the greatest common factor is g. Dividing through by the greatest common factor, I get h2 + gh. Thus, the factored polynomial is g(h2 + gh).
A.
The student identified the greatest common factor incorrectly.
B.
The student incorrectly divided each term by the greatest common factor.
C.
The student failed to simplify the expression.
D.
The mathematical work shown is correct.
Answer:
Your answer is A
Step-By-Step
did it on edge
The price of a pair of shoes increases from $20 to $32. What is the percent increase?
Answer:5%
Step-by-step explanation:
Derrick withdrew $17 from his account on Monday. The next day he
deposited $12 in his account. What integer represents the total change in
his account over these two days?
Answer:
The total change in his account is represented by the integer -5
Step-by-step explanation:
Operations With Integers
We need to perform addition and subtraction to complete the answer to this problem.
Derrick first withdrew $17 from his account. Since the money is coming out from the account, it's considered as negative. Thus this operation is recorded as -$17.
The next day he deposited $12, which is considered as positive. This operation is considered as $12 or +$12.
The net operation or total change in the account is: -$17 + $12.
Subtracting and simplifying: -$17 + $12 = -$5
The total change in his account is represented by the integer -5
1) 8x + 4 + 9x + 6
O 17x + 10
27x
12x+ 15
o 178-10
Answer:
the answer is 17x+10
Step-by-step explanation:
Solve the following question
Find X,Y
Please help I need this done by today.
Answer:
x = 3, y = 2
Step-by-step explanation:
The triangles are similar, thus the ratios of corresponding sides are equal, that is
[tex]\frac{x}{6}[/tex] = [tex]\frac{1.5}{3}[/tex] ( cross- multiply )
3x = 9 ( divide both sides by 3 )
x = 3
and
[tex]\frac{y}{4}[/tex] = [tex]\frac{1.5}{3}[/tex] ( cross- multiply )
3y = 6 ( divide both sides by 3 )
y = 2
please help me on this!
Answer:
[tex] {9}^{ - 8} [/tex]
Step-by-step explanation:
[tex] \frac{ {9}^{ - 5} }{ {9}^{3} } [/tex]
[tex] {9}^{ - 5 - (3)} [/tex]
[tex] {9}^{ - 5 + (- 3)} [/tex]
[tex] {9}^{ - 8} [/tex]
for all values of x, f(x) = 2x and g(x) = x + 1
A) find f(3)
B) find gf(3)
Answer:
the correct answer is :
A) 2× 3 = 6
B) g(6) = 6 + 1 =7
which expression is equivalent to the given expression is no denominator equals zero?
Answer:
B: 4/d-6
Step-by-step explanation:
Plato answer
Mr.sampson is 12 years less than twice as old as Mr.rogers. the sum of their ages is 93. how old are they?
Answer:
Mr.Samson is 58 years old. Mr.Rogers is 35.
Step-by-step explanation
Samson's age Roger's age
2x - 12 x ( 12 years less than twice Mr.Rogers(x))
Equation: 2x - 12 + x = 93 Sum of ages is 93
3x - 12 = 93 Simplified
x = 35 Solve
Rogers = x, so Rogersis 35
But Sampson is 2x - 12 ( 2 * 35 - 12 ), so Sampson is 58
What is the probability of not picking a red face card when you draw a card at random from a pack of 52 cards?
Answer:
3/13
Step-by-step explanation:
Answer:
13/3
Step-by-step explanation: There are 6 red face cards in all red cards
Total number of possible outcomes=26
P (red face card) =
26/6=3/13
The perimeter of a triangle is 6p2-4p+9 and two of its adjacent side are p2 -2p+1 and 3p2-5p+3.Find the 3rd side
Answer:
C = 2p² + 3p - 5
Step-by-step explanation:
Let A & B denote the other two adjacent sides respectively.
Let the third side be denoted by C
Given the following data;
Perimeter of triangle = 6p² - 4p + 9
Length of one side = p² - 2p + 1
Length of one side = 3p² - 5p + 3
The perimeter of a triangle is given by the addition of all its three (3) sides.
Mathematically, the perimeter of a triangle is given by the formula;
P = A + B + C
6p² - 4p + 9 = p² - 2p + 1 + 3p² - 5p + 3 + C
6p² - 4p + 9 = 4p² - 7p + 4 + C
C = 2p² + 3p - 5
A store sells boxes of tissue that have 6 tissues in each box. The boxes are arranged 3 across and 4 deep on each shelf. How many tissues are on each shelf?
Number of boxes = 3 across x 4 deep = 12 total boxes.
Each box has 6 tissues.
Total tissues = 6 per box x 12 boxes = 72 tissues.
if one leg of a right triangle is 12 and the other leg is 16, what is the length of the hypotenuse in this right triangle?
Answer:
20
Step-by-step explanation:
Since I am given two values of the triangle, I will input the equation a²+b²=c².
"c" represents the hypotenuse. First I plug in the values of the legs, 12²+16²=c². Next I simplify these values to 144+256=c², which is 400=c². Finally I take the square root from both the value and the variable: √400=√c² which is equivalent to 20=c. Therefore, the hypotenuse is 20. Hopefully this helps :)
Gavin ran 2 3/5 miles in 7/12 of an hour. How many miles can Gavin run in one hour?
Answer:
First you find how many miles can Gavin run in 1/12 of an hour. That way you can use it to times 12 and to find 12/12 of an hour which is 1 hour.
Turn it into an improper fraction. 2×5=10 then add that 10 to the numerator 3 and it'll be 13/5 miles in 7/12 hours. Then divide it by 7.
[tex] \frac{13}{5} \div 7 = \\ \frac{13 }{5 \times 7} = \frac{13}{35} [/tex]
So 13/35 is how many miles Gavin runs in 1/12 of an hour. Now times is by 12 = 146/35
Or
[tex]4 \frac{6}{35} [/tex]
miles per hour
Help meee pleaseeeeeeeee