If 1 match releases 1100 joules of heat energy and we know that 1 joule = 0.239 calories. This means that 1 match releases 1100 * 0.239 calories
1 match releases 262.9 calories.
Again, if 1 match produces 262.9 calories, then
1 match = 262.9 calories
x match = 2100 calories
if we cross multiply, we have
1 match * 2100 calories = x match * 262.9 calories
x match = 2100/262.9
x match = 7.987 matches
Therefore, approximately 8 matches are needed
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"Lin is shopping for a couch with her dad and hears him ask the salesperson, “How much is your commission?” The salesperson says that her commission is 5.5 % of the selling price.
How much commission will the salesperson earn by selling a couch for $495?"
Answer:
Commission = $24.75
Step-by-step explanation:
Commission = Sale Price × Commission %
Commission = $450 × .055 5.5% = as a decimal (.055)
Commission = $24.75
Divide x5+15x4+54x3−25x2−75x−34 by x+8
Step-by-step explanation:
Set up the polynomials to be divided. If there is not a term for every exponent, insert one with a value of 0.
x+8x5+15x4+54x3-25x2-75x-34
Divide the highest order term in the dividend x5 by the highest order term in divisor x.
x4x+8x5+15x4+54x3-25x2-75x-34
Multiply the new quotient term by the divisor.
x4x+8x5+15x4+54x3-25x2-75x-34+x5+8x4
The expression needs to be subtracted from the dividend, so change all the signs in x5+8x4
x4x+8x5+15x4+54x3-25x2-75x-34-x5-8x4
After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.
x4x+8x5+15x4+54x3-25x2-75x-34-x5-8x4+7x4
Pull the next terms from the original dividend down into the current dividend.
x4x+8x5+15x4+54x3-25x2-75x-34-x5-8x4+7x4+54x3
Divide the highest order term in the dividend 7x4 by the highest order term in divisor x.
On dividing, x⁵+15x⁴+54x³−25x²−75x−34 by x+8, Quotient is x⁴+7x³−2x²−9x−3 and Remainder is -10.
What is an Expression?An expression is a mathematical statement which consists of variables, constants and mathematical operators.
Dividend is x⁵+15x⁴+54x³−25x²−75x−34
Divisor is x+8
After division, the solution is attached in the image.
Quotient is ( x⁴+7x³−2x²−9x−3)
Remainder is -10
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I GIVE BRAINLIST !!
Which point is in the graphed solution set of this system of inequalities
-3x+y>1
y>_ x-1
Answer:
I think the answer is option d
The table below shows the incomplete values as y varies directly as
x. Calculate the missing values.
y =10 20_
x =5_ 2
Answer:
y=30
x=3
Step-by-step explanation:
~may it help you~
help me fro brainleist.........
Answer:
2nd one is parallel and last one is perpendicular.
What are the values of each variable?
а
Find the length of side x in simplest radical form with a rational denominator.
\30
X
60°
3
Answer:3√3
Step-by-step explanation:
tanx=opp/adj
tan60=x/3
make x the subject: 3 × tan60= x
x= 3√3 or 5.196 in decimals
Which describes how to move from (2, 3) to (6,4) on a coordinate grid?
Step-by-step explanation:
x = +4
y = +1
it uses a rigid transition formation
What's the circumference of a
circle with a radius of 5 inches?
Use 3.14 for i.
C = [?] inches
Answer:
31.4 inches
Step-by-step explanation:
c = 2 * 3.14 * r
c = 2 * 3.14 * 5
C = 31.4 inches
Just this one question please There is no more. NO BOTS PLEASEE
Some artists look for ways to extend copyright for longer than the laws normally allow. Why do they do this?
Answer:
So that other people cannot use their music without the artists permission and usually payment.
Step-by-step explanation:
I'm not sure but this is my best answer!
solve for b please. last one 33 points
Answer:
32
Step-by-step explanation:
6^2= b^2 + 2^2
b^2 = 36- 4
b^2= 32
b= √32
Answer:
√32
Step-by-step explanation:
The Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2 , is used to find the length of any side of a right triangle.
6² - 2² = b²
36 - 4 = b²
32 = b²
What is the slope of the line?
7x + 2y=5
A. 7/2
B. -7/2
C. -2/7
D. 2/7
Answer:
B) -7/2
Step-by-step explanation:
You would have to convert to slope-intercept form.
[tex]y=mx+b\\[/tex]
7x+2y=5
2y= -7x+5
y= -7/2x+5/2,
m= -7/2 = slope
What is the value of x ?
Answer:
12
Step-by-step explanation:
short way 6✓2 . ✓2 it is the 45 degree formula
Answer:
12
Step-by-step explanation:
The figure is an equilateral righ triangle - or if you prefer, it's half a square.
As a triangle: x is the ipotenuse, pythagorean theorem
[tex]x^2 = (6\sqrt2)^2 + (6\sqrt2)^2\\x^2 = 72+72 = 144 \rightarrow x = 12[/tex]
As half a square: diagonal is [tex]\sqrt2[/tex] times the side
x= [tex](\sqrt2) (6\sqrt2) = 2\times6 = 12[/tex]
A comic book store is having a sale. You can buy 20 comic books for 35$. What is the cost of 8 books during the sale?
Answer:
$14
No explanation yet.
Answer:
$14
Step-by-step explanation:
14 dollars
The figure shows three parallelograms: ABCD, A'BCD, and A"B"C"D".
Polygon ABCD is ___ to create parrellogram A’B’C’ D’
Polygon ABCD is ___
to create parallelogram A’’B'’C'’D".
A. reflected off y axis
B. rotated 90 degrees clockwise without origin
C. reflected across x- axis
D. rotated 270 degrees clockwise about the origin.
Answer:
First blank: B and C
Second blank: D and A
Step-by-step explanation:
Answer:
-Polygon ABCD is rotated 270 degrees clockwise about the origin to create parallelogram A'B'C'C'.
-Polygon ABCD is rotated 90 degrees clockwise about the origin to create parallelogram A"B"C"C".
Need only #5 done (Show work) will give brainliest
The distance between K and M = 35 (from the question)
[tex]2x - 5 + 2x = 35[/tex] (Reason: All individual distances in a line i.e. [tex]KL[/tex] and [tex]LM[/tex] sum up to give the distance [tex]KM[/tex]).
Collecting like terms:
[tex]2x + 2x = 35 + 5[/tex], [tex]4x = 40[/tex] (Reason: All similar terms in an expression can be computed with one another i.e. added or subtracted).
Dividing by the variable's coefficient:
[tex]4x = 40[/tex], [tex]x = 10[/tex] (Reason: The coefficient is a similar factor to both terms in both sides, diving 40 by 4 gives you 10, hence the statement has been proven).
Step-by-step explanation:
Statement ReasonL is between K and M GivenKM = 35 GivenKL = 2x - 5, LM = 2x GivenKM = KL + LM Segment addition 35 = 2x - 5 + 2x Substitution 35 + 5 = 4x Addition property40 = 4x Simplification10 = x Division propertyx = 10 ProvedIf Marlene can type 157 words per minute how many words can she type in 25 minute
Answer:
3925
Step-by-step explanation:
25x
25*157
Craig wants to create a right triangle with side lengths 4 centimeters, 6 centimeters, and 8 centimeters. Is this possible? Why or why not?
Answer:
It's not possible
Step-by-step explanation:
In right triangle hipotenuse must be the longest side so it'll be 8 and legs will be 4 and 6.
So
[tex]4 {}^{2} + 6 {}^{2} [/tex]
Doesn't equal to
[tex]8 {}^{2} [/tex]
16+36=52 not 64
Wayne took his family out to dinner. The cost of the food was $42.50. Wayne decided to give a 30% tip because of excellent service. The tax was 4% of the cost of the food. What was the total amount the meal cost him?
Answer:
$56.29
Step-by-step explanation:
A triangle has an area of 160 square inches and the base of the triangle is 40 inches. What is the height of the triangle?
Answer:
answer-8 Inches.
Step-by-step explanation:
Area of triangle=160 square inches
Base of triangle=40 inches
area of triangle=1/2*base*height160=1/2×40×height
160 =20×height
160/20=height
height=80 inches.
4x2 + 5x - 3x2 + 2y - 3x + 2y?
Answer:
2+2=5
Step-by-step explanation:
A dairy made 97.01 ounces of yogurt. Then a local market bought 84 ounces of the yogurt. How much yogurt does the dairy have left?
A pancake recipe calls for 4 cups of flour and 3 cups of milk. Does a recipe calling for 2 cups of flour and 1.5 cups of milk use the same ratio of flour to milk?
Answer:
I think the answer is Yes
Step-by-step explanation:
For example, 2 cups of flour can equal 4 cups of flour by multiplying by two. So 1.5 cups of milk, you multiply by two and it is equivalent to 3 cups of milk. So in the end, it is equal and it's basically half of the pancake recipe. Hope it helps!
HELPPPP!! question: uppose you put $150 in the bank 1 year ago. A sign at the bank reads 2% simple annual interest.
Fill in the values to complete the table.
45 points!!! help me please
Find the slope of the line that passes through (7,1) and (6,8)
Answer:
-7
y=-7x+50
Step-by-step explanation:
The interest on $2,000 for two years is $320 what is the simple interest rate.
Answer:
$640
Step-by-step explanation:
im actually not too sure. i think thats right
Answer:
320
Step-by-step explanation:
Gemma is solving a division problem. After writing the problem down, she moves the decimal point directly up to the quotient. Which of these is true of Gemma’s divisor?
A
It is 0.
B
It is negative.
C
It is a decimal.
D
It is a whole number.
C? im pretty sure its c
hope this helps!
C. It is a decimal, it is true of Gemma’s divisor.
The correct answer is: C. It is a decimal.
When Gemma moves the decimal point directly up to the quotient, she is essentially performing long division by powers of 10.
This is because when you divide a number by a power of 10, you are essentially shifting its decimal point to the left by the number of positions determined by the power of 10.
For example, if she is dividing by 100 [tex](10^2)[/tex], she is moving the decimal point two places to the left.
If she is dividing by 1000 [tex](10^3)[/tex], she is moving the decimal point three places to the left, and so on.
Moving the decimal point up to the quotient means that the divisor is a decimal number, and its value determines how many decimal places Gemma needs to move the decimal point in the dividend to get the quotient.
So, the correct answer is C. It is a decimal.
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pls help!!!!
Sandra uses 6.39 ounces of beans in a recipe. If she triples the recipe, how many ounces of beans will Sandra need?
Answer:
19.17 ounces
Step-by-step explanation:
If she uses 6.39 ounces for 1 recipe and she wants to "triple" the recipe we then know that triple also means 3 times.
Due to that fact we now know what our equation is:
6.39 x 3 which equals 19.17
I hope this helps have great day :)
Answer: 19.17
Step-by-step explanation: 6.39 x 3 = 19.17
Jaycee and Tyler are selling candy bars for a school fundraiser. Rylee sold 84 candy bars and raised 210$. If Jaycee raised 70$ how many candy bars did he sell?
Answer:
28 bars because 84/3 = 28
Step-by-step explanation:
Find the zeros of the function.
h(x) = x2 + 19x + 84
Answer:
X=7
Step-by-step explanation:
x-12)=0
x-12+12=0+12
x=12
Solve:
(x-7) = 0
x-7+7 = 0+7
x=7
