Answers
Related Questions
Please help me with an addition formula problem!
Solve the system by the elimination method. Check your work.
2a + 3b = 6
5a + 2b - 4 = 0
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5a + 2b = 4
We multiply the first equation by 5 and the second by 2 and and subtract the second from the first:
10a + 15b = 30
-10a -4b = -8
11b = 22
b = 2
2a + 3(2) = 6
2a = 0
a = 0
Checking,
5(0) + 2(2) = 4
4 = 4, true
Explain the converse of the Pythagorean theorem.
A. The converse of the Pythagorean theorem states that if a triangle is a right triangle, then the sum of the squares of its legs is less than the square of its hypotenuse.
B. The converse of the Pythagorean theorem states that if the square of one side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle.
C. The converse of the Pythagorean theorem states that if a triangle is a right triangle, then the sum of the squares of its legs equals the square of its hypotenuse.
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if sam, joe, and debbie each flip a coin how many possible outcomes are there? ...?
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When we toss three coins simultaneously then the possible of outcomes are: (HHH) or (HHT) or (HTH) or (THH) or (HTT) or (THT) or (TTH) or (TTT) respectively; where H is denoted for head and T is denoted for tail.
Peter has five times as much money as david both.if peter gves $28 to david, both of them will have equal amount of money. how much money did peter had in the beginning?
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First, let P = Peter's starting money
and D = David's starting money
P = 5*D (Peter has 5 times as much as David)
P - 28 = D + 28 (Peter gives $28 to David, and both have the same now)
P = D + 56
substitution reveals that
D + 56 = 5D
56 = 4D
Therefore,
David = 14, and Peter = 70
Find the quotient. Write your answer in standard form. : 3-i/3+i
A. 1-i
B. 3/5 + 4/5 i
C. 4/5 - 3/5 i
D. -1
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[tex] \frac{3-i}{3+i} = \frac{(3-i)(3-i)}{(3+i)(3-i)} \\ \\ (a+b)(a-b) = a^{2} -b^{2} \\ \\ \frac{(3-i)(3-i)}{(3+i)(3-i)}= \frac{ (3-i)^{2} }{3^{2}-i^{2} } \\ \\ (a-b)^{2} =a^{2}-2ab+b^{2} \\ \\ \frac{ (3-i)^{2} }{3^{2}-i^{2} } = \frac{3^{2}-2*3*i+i^{2} }{3^{2}-i^{2} } = \frac{9-6i+i^{2}}{9-i^{2}} \\ \\ i = \sqrt{-1} \\ i^{2}=-1 \\ \\ \frac{9-6i+i^{2}}{9-i^{2}} = \frac{9-6i-1}{9+1} = \frac{8-6i}{10}= \frac{8}{10}- \frac{6i}{10}= \frac{4}{5}- \frac{3}{5}i [/tex]
Jasmin read 1 3/4 pages in one minute. Armando read 1 1/2 times the number of pages that Jasmin read. How many pages did Armando read? Express your answer in simplest form. PLZZZZZ HELPP!!!!!!!!!!!!!!
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Hope this helps and if it does, happy studying and don't forget to mark as brainliest.
What is the volume of a sphere if its r=21m?
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r=21
V=(4/3)pi21^3
V=(4/3)pi9261
V=(37044/3)pi
V=12348pi
V=12348pi m³ or aprox 38792.378016 m³
Louann and Carla received equal scores on a test made up of multiple choice questions and an essay. Louann got 14 multiple choice questions correct and received 24 points for her essay. Carla got 16 multiple choice questions correct and received 14 points for her essay.
How many points was each multiple choice question worth?
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14x + 24 = 16x + 14
16x - 14x = 24 - 14
2x = 10
x = 10/2 = 5.
Therefore, each multiple choice question is 5 marks.
Which equation demonstrates the additive inverse property?Select one of the options below as your answer:
A. r × 0 = r
B. r + s = s + r
C. r + 0 = r
D. r + (-r) = 0
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The additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite.
What times what equals 12 but when added equals 13
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12 + 1 =13
1 * 12 = 12
12 + 1 = 13
during a special sale all video games cost $26 & all movied cost $14. Jack plans to spend some or all of his $220 in bday money on these movies & video games.
WRITE AN INEQUALITY
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g represents the number of video games bought
m represents the number of movies bought
The inequality that represents Jack's budget constraints for purchasing video games and movies is 26x + 14y ≤ 220, where x is the number of video games and y is the number of movies.
Explanation:To write an inequality representing Jack's spending on movies and video games with the given budget, we first assign a variable to the quantity of each item Jack could purchase. Let x represent the number of video games and y represent the number of movies. Since video games cost $26 each and movies cost $14 each, and Jack has $220 to spend, the inequality representing this scenario is:
26x + 14y ≤ 220
Here, x and y must be non-negative integers because you cannot purchase a negative amount or a fraction of a game or movie. This inequality ensures that the total amount spent on video games and movies does not exceed Jack's budget of $220.
What does the line -5+8y=8 look like?
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Answer:
Is a horizontal line
Step-by-step explanation:
we have
[tex]-5+8y=8[/tex]
Solve for y
Adds [tex]5[/tex] both sides
[tex]-5+8y+5=8+5[/tex]
[tex]8y=13[/tex]
Divide by [tex]8[/tex] both sides
[tex]y=13/8[/tex]
[tex]y=1.625[/tex]
This is a horizontal line parallel to the x-axis
The slope is equal to zero
see the attached figure to better understand the problem
The ratio of an objects wait on Earth to its weight on Neptune is 5:7. How much would a person who weighs 150 pounds weigh on Neptune
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The ratio "5:7:
Means for every 5 pounds on earth is an extra 2 pounds (or 7 pounds) on Neptune.
So to get from 5 to 150 is a factor of 30. So our ratio is now
"150:210"
So the object weighs "210"
FIND THE THIRD,FIFTH AND TENTH TERM SEQUENCE DESCRIBED BY EACH RULE
A(n)=4+(N-1)(-5)
A(N)=-2(n-1)(-5) ...?
Answers
To find the third term, substitute n = 3 into the formula A(n) = 4 + (n-1)(-5).
Explanation:The sequence A(n) is defined as 4 plus the product of (n-1) and -5. To find the third term, substitute n = 3 into the formula: A(3) = 4 + (3-1)(-5) = 4 + 2(-5) = 4 - 10 = -6.
To find the fifth term, substitute n = 5 into the formula: A(5) = 4 + (5-1)(-5) = 4 + 4(-5) = 4 - 20 = -16.
To find the tenth term, substitute n = 10 into the formula: A(10) = 4 + (10-1)(-5) = 4 + 9(-5) = 4 - 45 = -41.
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Need help in math
How does the slope of the line y=-x affect the graph?
Instructions says :
Think about how the graph changed as a result of changing the slope to a negative. Write several complete grammatically correct sentences describing how changing the slope to a negative number changes the graph. Be specific and detailed.
Thank you. I will really appreciate that
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rise/run = -1/1 = -1 = slope
So that's a more technical breakdown of the slope of -1
f(n)=3n-15/10 what's the inverse
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f^-1(n) = 1/2 + n/3
During a period of deflation, the graph of the consumer price index (CPI) will rise.
A. True
B. False ...?
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Final answer:
The statement is false; during a period of deflation, the Consumer Price Index (CPI) would decrease, not rise, reflecting a decrease in the average level of prices.
Explanation:
The answer to the student's question is B. False. During a period of deflation, the Consumer Price Index (CPI) would not rise; it would actually decrease. This is because deflation is characterized by a decrease in the average level of prices. For instance, during the Great Depression, a notable period of deflation, the CPI in the United States fell from 17.2 in 1929 to 12.9 in 1933, illustrating a decline in the general price level. Conversely, inflation will cause the CPI to rise because it reflects an increase in prices over time.
The Consumer Price Index is an economic indicator often used to measure inflation or deflation in an economy. A rise in CPI indicates inflation, whereas a drop indicates deflation. As inflation and deflation affect the real value of money, observing the changes in the CPI helps to understand the purchasing power of currency over time.
A jewelry store is having a 10% off regular price sale. find the sale price of a ring normally priced at $ 1350
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Estimate 67% of 26.8 by using fractions
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What is x in the equation (8 2/5 7 2/3) 4 1/3 = x 13?
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The elevation of park city Utah is 6900 feet above sea level.What integer represents the elevation
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The elevation of Park City, Utah is presented as 6900 feet above sea level. Therefore, the integer that symbolizes this elevation is +6900, considering that elevation position above sea level is depicted by a positive integer.
Explanation:The elevation of Park City, Utah is indicated as 6900 feet above sea level. As an integer, such elevation is simply represented by the number 6900. An integer is a whole number that can be either greater than 0, termed positive, 0, or less than 0, termed negative. In this scenario, the elevation above sea level is higher than 0. It means the integer representing the elevation is a positive integer. So, the elevation, as an integer, of Park City, Utah is +6900.
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V=3.14(r)^2h solve for r
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A fence post is 1.9 meters long. It is placed in a hole that is 0.65 meter deep. How far above the ground is the top of the fence post? Enter your answer as a decimal in the box.
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How many threes there in 27????
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9×3= 27
27÷3=9
Mark spent $1.19 on a drink and $4.89 on his sandwich.
What is the total amount Mark spent?
A.
$5.08
B.
$5.98
C.
$6.08
D.
$6.18
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Match the inequality to the graph of its solution.
a. n/4 ≤ -1
b. -10 ≥ -100
c. 5x ≥ 20
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The given inequality is:
n/4 ≤ -1
we need to isolate the n on one side of the inequality. To do this, we will multiply both sides by 4 as follows:
n/4 x 4 ≤ -1 x 4
The inequality now is:
n ≤ -4
The correct graph representing this is graph (b)
Part (b):
The given inequality is:
-10 ≥ -100
So, we will just search for the graph the shows that -10 is greater than the -100
The correct graph representing this is graph (a)
Part (c):
The given inequality is:
5x ≥ 20
we need to isolate the x on one side of the inequality. To do this, we will divide both sides by 5 as follows:
5x/5 ≥ 20/5
The inequality now is:
x ≥ 4
The correct graph representing this is graph (c)
Answer:
idiot
Step-by-step explanation:
its b a c i think
China issued the largest stamp ever, 210mm Long and 65mm wide. Find the ratio of length to width
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----------------------
42 : 13 is the ratio of 210mm long and 65mm wide
----------
divide both numbers by 5
The ratio of the length to the width of the largest stamp ever issued by China, having dimensions of 210mm long and 65mm wide, is approximately 3.23:1 after dividing the length by the width.
Explanation:To answer the question about the ratio of the length to the width of the largest stamp ever issued by China, we need to follow a few simple steps. First, we have the dimensions of the stamp: 210mm long and 65mm wide.
Step 1: Identify the numbers given. In this case, the length of the stamp is 210mm, and the width is 65mm.
Step 2: To find the ratio of length to width, we need to divide the length by the width. So, 210 divided by 65 gives us approximately 3.23 (rounded to two decimal places).
Therefore, the ratio of the length to the width of the largest stamp ever issued by China, in simplest form, is approximately 3.23:1.
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Gary bought a car for $40,000. If V = 40,000(.85)t represents the value of the car after t years, how long will it take the car to be worth less than one-fourth of its purchase price? ...?
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Years Value
1 34000
2 28900
3 24565
4 20880.25
5 17748.2125
6 15085.980625
7 12823.08353125
8 10899.6210015625
9 9264.6778513281
10 7874.9761736289
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
Answer:
D) 9 years
Step-by-step explanation:
What is 1 and 3\11 as an improper fraction?
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11×1 +3 and you will get your answer
•multiply the denominator with the whole number
•add what you got to the numerator
•still use the same denominator
1•11=11
11+3=14
14/11
14/11=1.3/11
Solve -9-8(1+4h)=-17
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First, use the distributive property for 8(1+4h):
8(1+4h) = 8*1 + 8*4h = 8 + 32h
So -9-8(1+4h) = -17
-9 - (8+32h) = -17
-9 - 8 - 32h = -17
-17 - 32h = - 17
Add 17 on both sides to have the variables on a side and the numbers on the other:
-17 - 32h + 17 = -17 + 17
-32h = 0
divide both sides by -32 to get the variable h alone and its value on the other side:
(-32h)/-32 = 0/-32
h = 0.
So -9-8(1+4h) = -17 for h = 0.
You can recheck your answer (very important):
-9 - 8(1+4h) = -9 -8(1+4*0) = -9 - 8(1+0) = -9-8*1 = -9-8 = -17
The answer has been approved.
Hope this Helps! :)
-9-8(1+4h) = -17
First, we need to distribute
-9 +(-8)(1) +(-8)(4h) = -17
-9 -8 - 32h = -17
-17 - 32h = -17
-32h = -17 + 17
-32h = 0
h = 0/-32
h = 0
I hope that's help !