In this case, we'll have to carry out several steps to find the solution.
Step 01
Data:
reasonable estimate = ?
39x24
Step 02:
39x24 = 936
reasonable estimate = 800
The answer is:
reasonable estimate = 800
Work out the volume of the prism below.
Give your answer in cm³.
Answer:
first area is length by width
then our L is 4 and W is 5
=20
and volume is ,area 18 then 18 by 7=126
I need help finding the answer.A parallelogram must be a rectangle if it's diagonals:A. bisect the angles in the parallelogramB. are congruentC. are perpendicular to each otherD. bisect each other
Given:
A parallelogram must be a rectangle.
If the diagonals are congruent then the parallelogram must be a rectangle.
Option B is the final answer.
Walter earns $144 by painting his neighbor's shed. He spends 25% of his money on books. He is going to save 50% of the remaining money. How much money will he save?
Answer
Walter saved $54
Explanation
Walter earns $144.
He spent 25% of it on books.
25% of $144 = 0.25 × 144 = $36
Amount left after spending 25% = $144 - $36 = $108
He then saves 50% of the remaining money
50% of $108 = 0.5 (108) = $54
Hope this Helps!!!
4r+1.1=6.6r-3.84 I can't if they say if both sign are the same
Solution
For this case we have the following equation given:
4r + 1.1 = 6.6r -3.84
We can subtract 4r in both sides and we got:
1.1 = 2.6r -3.84
Then we can add 3.84 in both sides and we got:
2.6 r = 4.94
And then the value of r we got:
[tex]r=\frac{4.94}{2.6}=1.9[/tex]True or False for each one613 rounded to the nearest ten is 610.1,970 rounded to the nearest hundred is 1,900.54,318 rounded to the nearest thousand is 54,000.476,022 rounded to the nearest ten thousand is 470,000.
To round a number to a specific place, look at the number to the right of that place. If the number is less than 5, round down. If it is greater than or equal to 5, round up.
Question 1: 613 rounded to the nearest ten is 610.
The tens digit in 613 is 1. To the right of 1 is 3. Therefore, the approximation of 613 is:
[tex]613\approx610[/tex]THIS STATEMENT IS TRUE.
Question 2: 1,970 rounded to the nearest hundred is 1,900.
The hundreds digit in 1,970 is 9. To the right of 9 is 7. This means that we will round up by adding 1 to 9. Therefore, the approximation will be:
[tex]1970\approx1900+100=2000[/tex]THIS STATEMENT IS FALSE.
Question 3: 54,318 rounded to the nearest thousand is 54,000.
The thousands digit is 4. To the right of 4 is 3. Therefore, the approximation is:
[tex]54318\approx54000[/tex]THIS STATEMENT IS TRUE.
Question 4: 476,022 rounded to the nearest ten thousand is 470,000.
The ten thousands digit is 7. To the right of 7 is 6. This means that we will round up. Therefore, the approximation is:
[tex]476022\approx470000+10000=480000[/tex]THIS STATEMENT IS FALSE.
Write an equation (any form) for the quadratic graphed below:
y = (1/2)x² + 2x + 2 is the equation of the parabola in the graph.
What is the equation of the parabola?From the graph, the parabola has a vertex at point (-2,0) and passes through point (0,2).
The general equation for a parabola with vertex is (h,k) is;
y = a( x - h)² + k
First we determine 'a' by substituting the given coordinates into the equation.
y = a( x - h)² + k
2 = a( 0 - (-2))² + 0
Solve for a
2 = a(2)²
2 = a( 4 )
a = 2/4
a = 1/2
Now, plug the vertex (-2,0) and a (1/2) into the general equation.
y = a( x - h)² + k
y = (1/2)( x - (-2))² + 0
Simplify
y = (1/2)( x +2) )² + 0
y = (1/2)( x + 2 )²
Expand using FOIL method
y = (1/2)( ( x + 2 )( x + 2 ) )
y = (1/2)( x² + 2x + 2x + 4 )
y = (1/2)( x² + 4x+ 4 )
Apply distributive property
y = (1/2)(x²) + (1/2)4x + (1/2)(4 )
y = (1/2)x² + 2x + 2
Therefore, the equation of the graph is y = (1/2)x² + 2x + 2.
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What is the first step in solving a quadratic equation of the form given below?
(ax + b)² = c
Answer:
take square root on both side
Step-by-step explanation:
After paying $20,000 for a car, you read that this model has decreased in value 15% per year over the last several years. If this trend continues, how much will the car be worth 5 years from now?
$8860
$8860 is the amount that is reduced after 5 years for the principal amount of $20,000 at a rate of interest 15%.
solution:When interest is compounded on the principal amount invested or borrowed, the interest rate is applied to the new (larger) principal.It's essentially interest on interest, which leads to exponential growth over time.Here ,
Given , P = $20,000
r = 15% = .15%
n = 5
since amount is getting decreased ,
formula of compound interest becomes,
A = [tex]p(1 - r)^{n}[/tex]
here P = principal amount , r = rate of interest and n = number of years.
= 20000(1 - .15)⁵
= 20000 x 0.443
= 8860
A = $8860
So , After paying $20,000 the value decreases by 15% after 5 yrs the value will be $8860.
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(PLEASE ANSWER) Complete the proof that the diagonals of parallelogram ABCD bisect each other.
The missing statements and reasons in the proof are 5) Δ AEB ≅ Δ CED and Δ AED ≅ Δ CEB, 5) By ASA rule and 6) AE ≅ CE and DE ≅ EB
What is a parallelogram?A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
Given that, ABCD is a parallelogram, we need to prove that the diagonals of parallelogram ABCD bisect each other.
The proof is as follows,
Statement Reason
1) AB CD and AD BC Given
2) ∠ 1 = ∠ 3 When a transversal crosses
parallel lines, alternate interior
angles are congruent.
3) ∠ 2 = ∠ 4 When a transversal crosses
parallel lines, alternate interior
angles are congruent.
4) AB = CD Opposite sides of a
parallelogram are congruent.
5) Δ AEB ≅ Δ CED
and Δ AED ≅ Δ CEB By ASA rule
6) AE ≅ CE and DE ≅ EB Corresponding parts of
congruent triangles are congruent,
7) Point E bisects both AC and BD Definition of bisector
Hence, proved.
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In slurfball, a fizzy is worth 2 points and a globbo is worth 5 points. K and W recently played for the surfball game. During the game, K scored eight more Fizzles then the W, but scored five fewer flobbos then the W, together the two teams scored 93 points total. What was the final score?
Using mathematical operations of addition, multiplication, division, and subtraction, the final score was:
K = 42 points
W = 51 points.
What are mathematical operations?
The basic mathematical operations for getting mathematical results from numbers, values, and variables include addition, multiplication, division, and subtraction.
In this situation, we apply these four basic mathematical operations.
Fizzy = 2 points
X = 5 points
Total scores = 93 points
The points in 8 Fizzy = 16 points (8 x 2)
The points in 5 X s = 25 points (5 x 5)
The equation showing the total scores of K = total scores + 16 - 25
= (93 + 16 - 25)/2
= 42 points
The equation showing the total scores of W = total scores - 16 + 25
= (93 - 16 + 25)/2
= 51 points
Hence, Final scores are K = 42 and W = 51.
Thus, applying mathematical operations, the final score shows that K scored 42 points while W scored 51 points, totaling 93 points for the two teams.
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The list price of a smartphone is $299. A local Samsung dealer receives a trade discount of 20% find the trade discount amount and the net price.
ANSWER
Discount amount = $59.80
Net price = $239.20
EXPLANATION
We are given that the price list of the smartphone at the store is $299.
The Samsung dealer receives a trade discount of 20%.
This means that 20% of the price was taken off for the dealer.
To find the discount amount, we need to find 20% of $299.
That is:
[tex]\frac{20}{100}\cdot\text{ 299 = }4=\text{ \$59.80}[/tex]That is the discount amount.
To find the net price, we simply need to deduct the discount amount from the list price.
That is:
Net price = $239.20
That is the net price.
NEED HELP ASAP PLSPLS
Answer:
a= 2
b = 6
c = 2
d = 2
e = 7
f = 2
g = 1
h = 1
R = .3 (repeating)
Step-by-step explanation:
Find the upper quartile of {2,5,13,21,29}
Sort the list in increasing order:
[tex]\mleft\lbrace2,5,13,21,29\mright\rbrace[/tex]The median is 13, therefore the upper quartile Q3 is given by:
[tex]Q3=\frac{21+29}{2}=\frac{50}{2}=25[/tex]Answer:
25
A video game system and several games are sold for 504$ . The cost of the game is 3 times as much as the cost of the system . Find the cost of the system and the cost of the games
We get the cost of the system and cost of the games as $126 and $378 respectively.
Given, the price of the video game and several games are sold for $504.
The cost of the game is 3 times as much as the cost of the system.
we need to determine the cost of the system and the cost of the game = ?
Let x = the cost of the games.
Let y = the cost of the system.
therefore, x+y=504
and y = 3x
substitute the value of y.
⇒ x + y = 504
⇒ x + 3x = 504
combine like terms.
⇒ 4x = 504
Divide both sides by 4.
⇒ x = 504/4
⇒ x = 126
The cost of the system is $126.
Use y = 3x substituting 126 for x.
g = 3(126)
g = 378
The cost of the games is $378.
Hence we get the cost of the system and cost of the games as $126 and $378 respectively.
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(1.57 x 10^5)-(9.5 x 10^4)
(1.57 x 10^5)-(9.5 x 10^4) The answer will be 62000 or Alternative form is 6.2 x 10^4
Given in the question:
(1.57 x 10^5)-(9.5 x 10^4)
To solve the above question:
Now, According to the question:
(1.57 x 10^5)-(9.5 x 10^4)
Factor Greatest Common Factors out :
10^4 (15.7 - 9.5)
Calculate the sum or difference
10^4 x 6.2
Express the number in scientific notation;
6.2 x 10^4
Calculate the power
6.2 x 10000
Calculate the product or quotient
62000
And, Alternative form is 6.2 x 10^4
Hence, (1.57 x 10^5)-(9.5 x 10^4) The answer will be 62000 or Alternative form is 6.2 x 10^4
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3 cm 00 What is the length of AC? A 1.5 cm C 6 cm B 3 cm D 9 cm is Which statement MUST be true? A AD BC В AD - BD CBD - AD D CDAD
The length of AC must be 3 cm letter B
Second question
Both B and C are correct.
Circuit total capacitance measures .04 microfarad. If the circuit is supplied by an AC power source operating at 2 kHz what is the circuit’s capacitive reactance
The capacitive reactance of the circuit with capacitance of 4 x 10⁻⁸ farad and the AC power source of 2 Khz is X[C] = 1.99 x 10⁻⁷ ohms.
What is Capacitance?The capacitance of a body is defined as the charge holding ability of a body. Mathematically, capacitance is the ratio of charge and potential as follows -
C = dQ/dV
Given is the total capacitance measures .04 microfarad. If the circuit is supplied by an AC power source operating at 2 kHz.
From this we can write -
Capacitance [C] = 0.04 microfarad = 4 x 10⁻⁸ farad.
Frequency of AC supply [f] = 2 KHz = 2 x 10³ Hz
The capacitive reactance is given by -
X[C] = 1/2πfC
X[C] = (1/2 x 3.14 x 2 x 10³ x 4 x 10⁻⁸)
X[C] = 1/(50.24 x 10⁻⁵)
X[C] = 0.0199 x 10⁻⁵
X[C] = 1.99 x 10⁻⁷ ohms
Therefore, the capacitive reactance of the circuit with capacitance of 4 x 10⁻⁸ farad and the AC power source of 2 Khz is X[C] = 1.99 x 10⁻⁷ ohms.
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IM DESPERATE I would like an explanation to go with the answer. THANK YOUOnly #5 and #6
Therefore the original price is $299
[tex]6)\text{ selling price = 152+152}\times\frac{50}{100}=152+76=228[/tex]the selling price is $228
How would you
describe the
following events, of
randomly rolling 2
dice and having a
sum that is EVEN OR
GREATER THAN 9?
The probability of the given event randomly rolling two dice and having a sum that is even or greater than 9 is 2/3.
As given,
Let us assume X is the event of the sum of two dice is even
Therefore
P(X) = The probability of having an even sum of two dice
Since all events are given in the question image, then
n(S) = Sample space = 36
X = {(1,1) , (1,3), (1,5), (2,2), (2,4), (2,6), (3,1), (3,3), (3,5), (4,2), (4,4), (4,6), (5,1), (5,3), (5,5), (6,2), (6,4), (6,6)}
n(X) = 18
Since
P(X) = n(A)/n(S)
P(X) = 18/36
P(X) = 1/2
Let us assume Y is the event of the sum of two dice is greater than 9, then
Y = {(4,6), (5,5), (5,6), (6,4), (6,5), (6,6)}
n(Y) 6
P(Y) = n(Y)/n(S)
P(Y) = 6/36
P(Y) = 1/6
P(X∪Y) = P(A) + P(B)
= 1/2 + 1/6
= 4/6
= 2/3
Therefore, probability of the given event randomly rolling two dice and having a sum that is even or greater than 9 is 2/3.
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identify the constant ( s ) in the algebraic expression -3a + 5b - 15
In the expression -3a + 5b - 15;
The constants are; -3, 5 and -15
The variables are; a and b.
What are the constants and variables?
A constant of an Algebraic Expression is simply a value that cannot be changed by inputting another value. For example in the algebraic expression; y³ = 4x³ - 7
The constants here will be 4 and -7 as they cannot be changed
Now, the variables in algebraic expressions are those that can be changed with different values and the equation will still be valid. For example, in the equation y³ = 4x³ - 7, the variables are y and x.
Thus, in our expression -3a + 5b - 15, the constants will be -3, 5 and -15 while the variables would be a and b.
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Supposed to select all statements that are true about the construction
The segment AB is perbenticular to XY.
Here 90 degrees is an interior angle for Arc XB and Arc AY
[tex]90^o=\frac{XB+AY}{2}[/tex][tex]XB+\text{AY}=180^o[/tex]Similarly, 90 degrees is an interior angle for Arc XA and Arc BY
**A B C D E F G H I J K L M N O P Q R S T U V W X Y Z**If the code for HTML is JVON.What is the code for COMMIT?
If the code for HTML is JVON, it means that:
letter 8th (H) is letter 10th (J). Letter 20th (T) is letter 22th (V) and so on.
It means that the encoding is taking the letter 2 positions forward.
Hence C=E, O=Q, M=O, I=K, T=V.
The answer is EQOOKV.
complete the table below to find the solutions to the linear equation y= 5x-5
Answer:
x y (x, y)
0 -5 (0, -5)
2 5 (2, 5)
1 0 (1, 0)
Explanation:
To fill a table, we need to give values to the variable x and then calculate the values of y.
So, if x = 0, then y is equal to:
y = 5x - 5
y = 5(0) - 5
y = 0 - 5
y = -5
If x = 2, then y is equal to:
y = 5x - 5
y = 5(2) - 5
y = 10 - 5
y = 5
If x = 1, then y is equal to:
y = 5x - 5
y = 5(1) - 5
y = 5 - 5
y = 0
Therefore, the complete table would be:
x y (x, y)
0 -5 (0, -5)
2 5 (2, 5)
1 0 (1, 0)
10. Ariana's iPod battery lasts 6 hours. She listens to her iPod for 2/3 of an hour in theafternoon and another 2 5/6 hours in the evening.a) How much listening time is left on Ariana's iPod?b) What fraction of the battery's power is left? Justify your answer with adiagram.
We have the following:
The first thing is to transform the mixed numbers to decimal numbers, in the following way:
[tex]\begin{gathered} \frac{2}{3}=0.67 \\ 2\frac{5}{6}=2.83 \end{gathered}[/tex]a.
to calculate the remaining time we must subtract the times where music is heard from 6 hours
[tex]6-0.67-2.83=2.5[/tex]Therefore, the answer is 2.5 hours or 5/2 hours battery remaining
b.
To calculate the fraction we must calculate that it represents 2.5 or 5/2 hours in the total, that is, 6 hours
[tex]\frac{\frac{5}{2}}{6}=\frac{\frac{5}{2}}{\frac{6}{1}}=\frac{5\cdot1}{6\cdot2}=\frac{5}{12}[/tex]The diagram is:
Which linear inequality is represented by the graph?
Oy> 2x + 2
Oy²x+1
Oy> 2x + 1
Oy² = x + 2n
Answer:
y>2x+1
Step-by-step explanation:
1. there is 'y=2x+1' graph is represented.
2. the shaded reqion is y>2x+1.
The correct linear inequality represented by the graph is y > 2x + 1. The correct option is C.
What is inequality?An inequality is a mathematical statement that compares two values or expressions and shows their relationship using the symbols < (less than), > (greater than), ≤ (less than or equal to), ≥ (greater than or equal to), or ≠ (not equal to).
To see why, note that the line shown in the graph has a y-intercept of 1 and a slope of 2 (i.e., it passes through the points (0,1) and (1,3)).
If we plug in any point above this line, we get a y-coordinate that is greater than 2x + 1. For example, if we plug in the point (2,6), we get:
6 > 2(2) + 1
6 > 5
All points above the line satisfy the inequality y > 2x + 1.
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Given that point D is at (3,4) and point D' is at (5.-13). What rule shows the translation that occurred?
Answer:
I'm just here for points :3
Step-by-step explanation:
I don't know math
If A=(2,-3,-4) and B(6,7,-4), find ||AB||. Round to 3 decimal places.Type your answer...
The rule we will use is
[tex]\parallel AB\parallel=\sqrt[]{(x2-x1)^2+(y2-y1)^2+(z2-z1)^2}[/tex]x1 = 2 and x2 = 6
y1 = -3 and y2 = 7
z1 = -4 and z2 = -4
[tex]\parallel AB\parallel=\sqrt[]{(6-2)^2+(7--3)^2+(-4--4)^2}[/tex]Now we will find the answer in decimal using the calculator
The answer is 10.77032961
Round it to 3 decimal places, then
[tex]\parallel AB\parallel=10.770[/tex]8. Let f(x) = 3x and g(x) = (x + 2)^2. Find the value of (g o f)(4).*A.54B.108C.196D.432
Answer
Option C is correct.
(g o f)(4) = 196
Step-by-step Explanation
f(x) = 3x
g(x) = (x + 2)²
We are then told to find
(g o f)(4)
We need to first interprete what (g o f) means
(g o f) refers to writing g(x) with f(x) replacing x. That is, f(x) replaces all the x that the function given by g(x) has.
(g o f) = g[f(x)]
g(x) = (x + 2)²
g[f(x)] = [f(x) + 2]²
Recall that f(x) = 3x
g[f(x)] = [3x + 2]²
We can then go further now to obtain (g o f)(4)
(g o f)(x) = g[f(x)] = [3x + 2]²
(g o f)(4) = [3(4) + 2]²
= [12 + 2]²
= 14²
= 196
Hence, option C is correct.
(g o f)(4) = 196
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Quiana took out a loan to pay for a new car. Initially, she owed the lender $15,234.68. She has repaid $247.43 of the loan each month for the past 5 months. What is the net change to the loan from Quiana’s perspective over the past 5 months?
Complete the steps below to help Quiana calculate the loan amount that she’s repaid to the lender.
Answer:
13,325
Step-by-step explanation:
247.43 x 5
13,535
A bag contains 5kg of rice 1g is taken for cooking.what is the ratio of the amount taken out to the original quantity
1g of rice is taken from a bag containing 5kg of rice for cooking. The ratio of the amount taken out to the original amount is 5:1.
What is meant by ratio?A ratio is an ordered pair of numbers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion exists in an equation that sets two ratios equal to each other. For example, if there is one boy and three girls, the ratio could be written as 1: 3. (for every one boy there are 3 girls) One-quarter are boys and three-quarters are girls. A ratio shows the number of terms one numeral contains another. For example, if a bowl of fruit contains eight oranges and six lemons, the orange-to-lemon ratio is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).
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