Answer:
144 [tex]cm^2[/tex]
Step-by-step explanation:
Answer:the answer were to your question is 4
Step-by-step explanation:
Put me on brainlyiest pls
A. Directions/Instructions:
Given
Solution (3 points)
Final Answer (1 point)
Ex. : 5ab( 4a3 + 2ab - 3b4)
=5ab( 4a3 + 2ab - 3b4)
=20a4b+10a2b2-15ab5
=20a4b+10a2b2-15ab5
1. (6k + 5)(5k + 5)
2. (a2+6a-4)(2a-4)
3. (4x2-5x-21)÷(x-3)
Perform the operation on the following algebraic expressions and apply the laws of exponents. (3 points)
B. Directions/Instructions:
Perform the operation on the following algebraic expressions and apply the laws of exponents. (3 points)
Given
Solution (2 points)
Final Answer
Example: 8c52d42
=8c52d42
=64c104d8
=16c10d8
1. (4x5y3)2
2. 18c8(-2c)2
3. 3a2bab24ab2c3c
Answer:
Hope the pictures will help. I have done what I knew
A hole-punch machine is set to punch a hole 1. 84 centimeters in diameter in a strip of sheet metal in a manufacturing process. The strip of metal is then creased and sent on to the next phase of production, where a metal rod is slipped through the hole. It is important that the hole be punched to the specified diameter of 1. 84 cm. To test punching accuracy, technicians have randomly sampled 12 punched holes and measured the diameters. The data (in centimeters) follow. Use an alpha of. 10 to determine whether the holes are being punched an average of 1. 84 centimeters. Assume the punched holes are normally distributed in the population. 1. 81 1. 89 1. 86 1. 83 1. 85 1. 82 1. 87 1. 85 1. 84 1. 86 1. 88 1. 85
Using the t-distribution, as we have the standard deviation for the sample, it is found that it can be concluded that the holes are being punched an average of 1. 84 cm.
What are the hypotheses tested?At the null hypotheses, it is tested if the mean is of 1.84 cm, that is:
[tex]H_0: \mu = 1.84[/tex]
At the alternative hypothesis, it is tested if the mean is different of 1.84 cm, that is:
[tex]H_1: \mu \neq 1.84[/tex]
What is the test statistic?The test statistic is given by:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
The parameters are:
[tex]\overline{x}[/tex] is the sample mean.[tex]\mu[/tex] is the value tested at the null hypothesis.s is the standard deviation of the sample.n is the sample size.Considering the hypothesis and the given sample, it is found that the parameters are as follows:
[tex]\overline{x} = 1.85, \mu = 1.84, s = 0.0235, n = 12[/tex].
Hence, the test statistic is given by:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{1.85 - 1.84}{\frac{0.0235}{\sqrt{12}}}[/tex]
[tex]t = 1.47[/tex]
What is the decision?Considering a two-tailed test, as we are testing if the mean is different of a value, with a significance level of 0.1 and 12 - 1 = 11 df, the critical value is of [tex]|t^{\ast}| = 1.7959[/tex]
Since the absolute value of the test statistic is less than the critical value, we do not reject the null hypothesis and it can be concluded that the holes are being punched an average of 1. 84 cm.
More can be learned about the t-distribution at https://brainly.com/question/16313918
zelma buys p pounds of bananas for 40 cents per pound. she pays the clerk with a $20 bills. The clerk Subtract The total cost of the banana from the $20 bill to determine the amount of change to give zelma. which expression represents the amount of change Zelma should received?
[tex]A.p-20
B.20-40p
C.20-0.40p
D.0.40p-20
Answer:
B
Step-by-step explanation:
The amount of change Zelma should receive is 20-0.40p, or 20 dollars minus the total amount of the bananas (each pound multiplied by 40 cents).
Answer: Simple the answer is c.
Step-by-step explanation:
First start out with 20 witch is a full number and subtract .40 p from 20
.40 is the cost of each banana and p is the amount of bananas that will be purchased.
What is 3/7 as a decimal rounded to 3 decimal places?
Power Up Test Practice
15. The table shows the money raised by each type of booth
at a craft sale. The mean amount raised per booth was $50
How much money was raised by the T-shirt booth? Explain
how you found your answer.
Martin Gai Sande
Answer: 26
Step-by-step explanation: Add all the booths together and you will get 300. You will get 300 because the t-shirts booth is $26. Now divide 300 by how many booths there are, which is six. And your mean will be 50.
Use the Law of Sines to solve (if possible) the triangle. If two solutions exist, find both. Round your answers to two decimal places. (If a triangle is not possible, enter IMPOSSIBLE in each corresponding answer blank. ) A = 55°, a = 10. 1, b = 12. 3
Case 1
B
C
c
Case 2
B
C
c
A = 55°, a = 10. 1, b = 12. 3
The values of the solution for the triangle is A = 55°, a = 10. 1, b = 12. 3, B = 86.01°, c = 7.68 and C = 39°
What is sine rule?
Sine rule is used to show the relationship between the sides and angles of a triangle. It is given as:
a/sinA = b/sinB = c/sinC
Where A,B,C are the angles and a,b and c are the opposite sides to the angles.
1)
A = 55°, a = 10. 1, b = 12. 3
10 / sin(55) = 12.3 / sinB
B = 86.01°
A + B + C = 180° (angle in triangle)
55 + C + 86 = 180
C = 39
10 / sin(55) = c / sin(39)
c = 7.68
The values of the solution for the triangle is A = 55°, a = 10. 1, b = 12. 3, B = 86.01°, c = 7.68 and C = 39°
Find out more on sine rule at: https://brainly.com/question/4372174
What is the value of x?
What is the value of angle G?
What is the value of angle D?
What is the value of angle F?
What is the value of angle E?
please help me Thanks
Answer:
See below ↓
Step-by-step explanation:
∠G = ∠E and ∠F = ∠D [opposite angles in a ║gm]3x + 11 = 5x - 92x = 20x = 10∠G = 5(10) - 9 = 41°∠E = 3(10) + 11 = 41°
Measures of the angles are equal 360° (total degree measure) - [∠G + ∠E]
360 - 82278∠F and ∠D = 1/2(278) = 139°find the next three terms of the sequence 2000,200,20,...and write the term to term rule.
Answer:
2, 0.2, 0.02
The first number is 2000. The term to term rule is 'divide by 10'.
Step-by-step explanation:
To calculate the next term, divide the previous term by 10:
2000 ÷ 10 = 200
200 ÷ 10 = 20
Therefore, the next three terms will be:
20 ÷ 10 = 2
2 ÷ 10 = 0.2
2 ÷ 10 = 0.02
Term to term rule
To work out the term to term rule, give the initial number of the sequence and then describe the pattern:
The first number is 2000. The term to term rule is 'divide by 10'.
Solve the equation . 5x+17=42
Answer:
x = 5
Step-by-step explanation:
5x+17=42
5x + 17 - 17 = 42 - 17
No links! Will give 20 points.If Q(4,2) is reflected in the y-axis what will be the coordinate of Q'.
Answer:
B
Step-by-step explanation:
Gobe weighs 53.6 kg. he wears shoes which weigh 450 gm and carries a school bag weighing 4.5 kg. if he stands on the scales in his shoes and carrying the school bag. what weight will be recorded?
Answer:
The key to this question is converting all the mass units to the same unit and adding them all up.
The only value that isn't consistent with the other units is 450 gm or grams.
Recall that 1 gram is equal to 0.001 kilo grams. So if you want to convert grams to kilograms you would multiply that amount by 0.001 or 1/1000
[tex]450gm * \frac{1}{1000} = 0.45kg[/tex]
Now let's add up all the masses.
[tex]53.6kg + 0.45kg + 4.5kg = 58.55 kg\\[/tex]
(Now a few footnotes here, that I considered but wasn't sure about. The answer asks for weight, but you're only given mass to work with. That would be fine, if the question asked you to convert it to SI weight units like Newtons, but there's no mention of that. And also I'm not sure if the question requires significant digits. But I'll continue the answer if you think so)
To convert this into weight in Newtons, multiply by 9.81 m/s^2
[tex]58.55kg*9.81m/s^2 = 574.3755 N\\\\= 5.7 * 10^2 N[/tex]
How long is the arc intersected by a central angle of startfraction pi over 3 endfraction radians in a circle with a radius of 6 ft? round your answer to the nearest tenth. use 3.14 for pi. 1.0 ft 5.7 ft 6.3 ft 7.0 ft
The length of the arc which subtends a [tex]\pi/3[/tex] radians angle on a circle with 6 ft radius is given by: Option C: 6.3 feet approximately.
How to find the relation between angle subtended by the arc, the radius and the arc length?[tex]2\pi^c = 360^\circ = \text{Full circumference}[/tex]
The superscript 'c' shows angle measured is in radians.
If radius of the circle is of r units, then:
[tex]1^c \: \rm covers \: \dfrac{circumference}{2\pi} = \dfrac{2\pi r}{2\pi} = r\\\\or\\\\\theta^c \: covers \:\:\: r \times \theta \: \rm \text{units of arc}[/tex]
For this case, we have:
Radius of the circle = r = 6 ftAngle subtended by the considered arc of the circle on its center = [tex]\theta^c = \dfrac{\pi}{3}^c[/tex]Thus, if we take:
Length of the arc = L feet, then:
[tex]L =r \times \theta = 6 \times \dfrac{\pi}{3} = 2\pi \: \rm ft \approx 6.28 \approx 6.3 \: ft[/tex]
Thus, the length of the arc which subtends a [tex]\pi/3[/tex] radians angle on a circle with 6 ft radius is given by: Option C: 6.3 feet approximately.
Learn more about arc length here:
https://brainly.com/question/12058177
Answer:
c
Step-by-step explanation:
i did it and got it right
what should be subtracted from 8p + 5p to get 6a - 5b ?
Answer:
8p+5p
=13p
=6a-5b procesa
Sarah and Lily mow lawns during the summer to earn money. Sarah
determined that she can earn between $6. 00 and $6. 25 per hour. Lily estimates
that she earns between $7. 50 and $8. 00 per hour. About how much more money will
Lily earn than Sarah if they each work 22 hours?
Answer:
21.75
Step-by-step explanation:
Because 6.00+6.25=12.25+7.00=19.75+8.00=27.75
Sally and Will are very picky eaters. At the start of dinner, Sally pushed half of her peas onto Will's plate. Then, when their mom wasn't looking, Will pushed half of his peas onto Sally's plate. Finally, Sally once again pushed half of her peas onto Will's plate. When their mom said they would get no dessert if they didn't eat their vegetables, Sally had 25 peas on her plate and Will had 47 peas on his plate. How many peas did Sally have at first?
Considering the total of peas is 72, Sally's initial number of peas was 56.
What is the total of peas?Assuming the two brothers did not eat any peas, the total of peas both at the beginning and end is 72 peas.
25 + 47 = 72 peasBy the end, Sally has 25 peas and Will has 72 peas.
How many peas did Sally have before?Before the mother declared none of them would have dessert Sally had given Will half of her peas. This means 25 peas represent half of the peas:
25 x 2 = 50 peas 22 peas in Will's plate
Before this, Will had given Sally half of his peas
22 peas x 2 = 44 peas 28 peas on Sally's plate
Right before this, Sally gave Will half of her peas:
28 x2 = 56 peas 16 peas on Will's plate
Let's check this answer:
S= 56 W= 16 -Beginning
S= 28 W=44 - Sally gives Will half of her peas
S= 50 W=22 - Will gives sally half of his peas
S=25 W= 47 -Sally gives will half of her peas
Learn more about peas in: https://brainly.com/question/26169406
Help!!!! I need help with this one
Answer:
y=1/3x+2
Step-by-step explanation:
y=mx+b form is where m = the slop and b = the y interecept.
Y - Intercept
we can tell the y-intercept is 2 just by looking at the graph
Slope
For the slope, we can pick two points on the line, in this case, I will pick the points (0,2) and (3,3). Then, we can use the slope formula (y2-y1)/(x2-x1) to find the points, and after plugging the points in, we get 1/3, which is the slope
Plugging the numbers into slop intercept form
So we now know the slope is 1/3 and y-intercept is 2, so after plugging it into slope-intercept form (y=mx+b), we get y=1/3x+2
PLEASE HELP!
Will try to give the brainliest!
Answer:
L: (15+6x) W: 2
L: (10+4x) W: 3
L: (5+2x) W: 6
Step-by-step explanation:
We don't have any numbers here to do calculations, so probably this is just an exercise in FACTORING. Also to practice that area is length times width.
The area given,
30 + 12x
can be factored several ways to be able to fill in the table.
This kind of factoring is like "un-distributive property" where a common factor can be factored out of the expression. Usually its helpful to factor out the greatest common factor (GCF) but in this case any common factor will do.
Also, unless there are more directions, either factor may be the length or the width.
2(15+6x)
3(10+4x)
6(5+2x)
Leslie earned $12 Friday, $20 Saturday, and $56 Sunday selling bracelets. If she sold each bracelet for the same amount of money what is the most she could charge for each bracelet?
Answer:
$4
Step-by-step explanation:
12÷4=3
20÷4=5
56÷4=14
The zeros of a polynomial are −1/2 and 3/7. Find the polynomial.
___x²+x− ___
Answer:
[tex]y=14x^2+x-3[/tex]
Step-by-step explanation:
If the zeros of the polynomial are -1/2 and 3/7 then:
[tex]\implies x=-\dfrac12[/tex]
Add 1/2 to both sides:
[tex]\implies x+\dfrac12=0[/tex]
Multiply both sides by 2:
[tex]\implies 2x+1=0[/tex]
[tex]\implies x=\dfrac37[/tex]
Subtract 3/7 from both sides:
[tex]\implies x-\dfrac37=0[/tex]
Multiply both sides by 7:
[tex]\implies 7x-3=0[/tex]
Therefore, the factored form of the polynomial is [tex]y=(2x+1)(7x-3)[/tex]
Expanding the brackets so that the polynomial is in standard form:
[tex]\implies y=14x^2-6x+7x-3[/tex]
[tex]\implies y=14x^2+x-3[/tex]
NEED ASAP:
A photographer needs a frame for an 8 x 10 inch picture, such that the total area is 168 in2. Calculate the width of the frame. Which of the following quadratic equations would be used when solving this?
Answer:
Step-by-step explanation:
the area of this rectangle is
(10 + 2x)(8 + 2x) = 168
80 + 20x + 16x + 4x² = 168
4x² + 36x = 88
Step-by-step explanation:
A quadratic equation is an equation whose leading coefficient is of the second degree. The correct option is A.
What is a quadratic equation?A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
Let the width of the frame be represented by x. Therefore, the length and the breadth of the photographer be represented by (10+2x) inches and (8+2x) inches. Therefore, the total area of the photograph can be written as,
Area = Length × Breadth
168 inches² = (10+2x) inches × (8+2x)inches
168 = (10+2x)(8+2x)
168 = 80 + 20x + 16x + 4x²
0 = 80 + 20x + 16x + 4x² - 168
0 = 4x² + 36x - 88
4x² + 36x - 88 = 0
4x² + 36x = 88
Hence, the following quadratic equations that would be used when solving the width of the frame is 4x² + 36x = 88.
Learn more about Quadratic Equations:
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What is the value of x?
Answer:
19
Step-by-step explanation:
(5x+37)+(3x-9)=180
8x= 152
x=19
Craig went bowling with $25 to spend. He rented shoes for $5.25 and paid $4.00 for
each game. What was the greatest number of games Craig could have played?
Answer:
craig had played approx 5 games..
Step-by-step explanation:
25 is the amount which craig have. 25-5.2=19.9 and when we divide 19.9 with 4 ie. 19.9÷4 = 4.9
Can someone please help me out with this question?
Answer:
B and B
Step-by-step explanation:
For the first problem, the range is simply the data set rearranged from smallest to largest.
For the second problem, you just have to cross multiply each variable in order to expand the equation and get an answer.
The answer for that one is [tex]12x^{3} -42x^{2} +8x+55[/tex]
Han earns $33.00 for babysitting 4 hours. At this rate, how much will he earn if he babysits for 7 hours? Explain your reasoning
Answer:
55.75
Step by step explain:
33.00 divided by 4 equals 8.25
then multiply 8.25 by 7 which equals 55.75
Please help me! There is a picture.
Answer:
A. is the answer because 1/2 x 20 will equal 40 gallons
How to solve this please
Their sum of ages is 45
So
x+x+27=452x+27=452x=18x=9Therefore
Nabil is 9years oldTala is 36 years oldStep-by-step explanation:
let the tala's age be x and nabil's be y
x+y=45(equation 1)
x=y+27
x-y=27(equation 2)
solving 1 and 2 equation
x+y=45
x-y=27
______
2x=18
x=9
therefore the talas age is 9
putting the value of x in equarion 1
9+y=45
y=45-9
y=36
Solve for area and perimeter in each of the following problems. (2)
Step-by-step explanation:
Area =5m×11m=55m²
perimeter =(11m+5m)×2=52m
hope it helps!
Do problems #4-6. Your answer choices are in a table below. Type your answer numbers the blank to move on! No spaces, no commas. Put it all together. *
I need help with 5
[tex]\frac{1}{2a}[/tex]
Step-by-step explanation:Simplify or expand
[tex](2a)^{-1}[/tex]
Simplify using negative exponent rule [tex]a^{-n}=\frac{1}{a^n}[/tex]
[tex]\frac{1}{2a}[/tex]
I hope this helps you
:)
Helpppppp!!!
(Show work)
Answer:
( - y - 3 , - x - 1 )
Step-by-step explanation:
( x , y ) ----> ( - y , x ) ----> ( - y - 3 , x + 1 ) ----> ( - y - 3 , - x - 1 )
Find the mean of the data.
Pls help ASAPPPP
Answer:
the answer is 56
Step-by-step explanation:
first off you need to add every number up which adds to be 336,
then you divide by the number of pieces in the data which in this case is 6,
366 divided by 6 is 56
I HOPE THIS HELPED!