Answer The answer is biased.
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Instruction
Finding the Square Root of a Perfect Square
Which statements about square roots are true? Check all that apply.
The square root of a positive number cannot be negative.
All positive numbers have two square roots.
0 18 = 9 because 9(2) = 18.
49 = 7 because 7(7) = 49.
25 = 5 because 52= 25.
Answer:
Step-by-step explanation:
The square root of a positive number cannot be negative. False. There are two square roots, one positive and one negative.
All positive numbers have two square roots. True. See above.
0 18 = 9 because 9(2) = 18. Unable to answer; "0 81" is invalid. Note that
√81 = ±9
49 = 7 because 7(7) = 49. Invalid statement. 49 never equals 7. Perhaps you meant √49 = ±7
25 = 5 because 52= 25. Invalid statement. Perhaps you meant √25 = ±5.
Please, before you do any more square root problems, learn how to type the " √ " symbol or equivalent, such as "sqrt( "
find the area of the shape below
Answer:
105 squared cm
Step-by-step explanation:
Area of the shape = area of rectangle with dimensions 6 cm by 9 cm + area of trapezoid with bases 6 cm, 11 cm and height 6 cm.
[tex] = 9 \times 6 + \frac{1}{2} (6 + 11) \times 6 \\ \\ = 54 + 17 \times 3 \\ = 54 + 51 \\ = 105 \: {cm}^{2} \\ [/tex]
Select the expression that is equivalent to 48 + 12.
Answer:
Where are the expressions?
Answer:
48+12=60
60÷2=30
your answer is 30+30
Find the missing value in the table of equivalent ratios.
Answer:
20
Step-by-step explanation:
how i know that is because it go jelessawilliamorlouz
06/15/2017
Mathematics
Middle School
+5 pts
Answered
What is the missing value in this table of equivalent ratios?
10 so if you look at it it is going every other number
18
15
27
20
36
25
?
30
54
20
Step-by-step explanation:
how i know that is because it go jelessawilliamorlouz
06/15/2017
Mathematics
Middle School
+5 pts
Answered
What is the missing value in this table of equivalent ratios?
10 so if you look at it it is going every other number
18
15
27
20
36
25
?
30
54:
To choose a mascot for a new middle school, 8th-grade students were polled, and their top choice was selected a
the mascot. Was the sample a biased sample? yes or no
Intro
Done
Answer:
yes, it was a biased sample
Step-by-step explanation:
it is because 8th graders are not the only students that attend middle school, middle school is students from 6th to 8th grade, for the sample to not have been biased, all the students should have been polled
What is -5 1/3 + 2 2/3
Answer:
-2[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Answer:
-8/3 or -2 2/3
Step-by-step explanation:
-5 1/3 + 2 2/3 can be made into the improper fractions -16/3 + 8/3 if you multiply the whole number and the denominator together then add the numerator, so now you do the math:
-16 + 8 = -8
3 stays as the denominator leaving you with -8/3, or -2 2/3
PLZ SOMEONE HELP ME I REALLY NEED HELP PLZ PLZ PLZ PLZ
Answer:3/5, 6/10, 9/15
PLEASE HELP ME ASAP I WILL GIVE 100 points and name you know
PLEASSSSSSSSSSSSSSSSSSEEEEEEEEEEEEEEEEEEEE
How are human activities affecting global warming?
Answer:
Human activities such as driving cars, and working at factories contribute to global warming significantly because burning fossil fuels in cars releases carbon dioxide, which is the largest source of greenhouse gas emissions in the U.S. and as these gases build up, they trap heat in the atmosphere, causing climate change.
Help me ASAP
Q 7
Will mark 1st and best and also correct answers as BRAINLIEST!
Answer:
Pls try to see if I get the correct answer
2 t shirts and 3 hats cost £12. 5 t shirts and 4 hats costs £23. find the cost of a t shirt. find the cost of a hat
Answer:
One hat costs 5.75
Step-by-step explanation:
Divide 23 by 4.
I need help ASAP please!!
△GHI ≅ △KLM what is the m∠KLM
Answer:
64°
Step-by-step explanation:
Both triangles represent a right angle by the small box in the angle.
Right angles = 90°
Since the triangles are congruent, then they would have the same measurements in their angles an sides. All triangles also have a sum of 180°. So, we can just subtract (26 + 90) from 180 to get the third angle.
180 - (26 + 90)
180 - 116
64
So, the m∠KLM is 64°.
What is the half life for the zombie population
Answer:
.
Step-by-step explanation:
Point A is at (6,-6) and point C is at (-6, -2).
Answer:
-1/3Step-by-step explanation:
If you want the slope, then the formula is change y / change x.
-6 - -2 = -4
6 - -6 = 12
-4/12
-1/3
If this wasn't what you were looking for, feel free to report this answer.
I'm always happy to help :)
3 × (6 × 7 – 2.5 × 4)
Answer: 96
Multiply
3×6×7=126
2.5×4=10
(3)(-10)
Subtract
126-30=96
Answer:
96.
Step-by-step explanation:
Using order of operations:- we deal with the parentheses first:
3 * (6 * 7 - 2.5 * 4) Multiplying before the subtract in the parentheses:
= 3 * (42 - 10) Now do the subtraction in the parentheses:
= 3 * 32
= 96.
-5(X+2)=-20
How do I solve for x
Answer:
x = 2
Step-by-step explanation:
-5(x + 2) = -20
-5x - 10 = -20
-5x = -20 + 10
-5x = -10
x = -10/-5
x = 2
Answer:
Step-by-step explanation:
-5(x+2)=-20
-5x -10=-20
-5x=-10
x=2
the trapezium is down on a centimetre grid find the area of the trapezium
Answer:
21 square cm
Step-by-step explanation:
[tex] b_1 = 9 \:cm, \: b_2 = 5 \:cm, \: h = 3\: cm\\
Area\: of\: trapezium\\
= \frac{1}{2} (b_1 +b_2)\times h\\\\
= \frac{1}{2} (9 +5)\times 3\\\\
= \frac{1}{2} \times 14 \times 3\\\\
= 7 \times 3\\\\
= 21 \: cm^2 [/tex]
Tyler is buying a chrome book which cost $89 the tax in his county is 3.75% how much will he pay for the chrome book including tax
Answer:
$122.375
Step-by-step explanation:
To find the total amount and tax, we need to multiply the original price by 1.375 in our case to get tax and the original price:
89×1.375=
$122.375
What is the solution to the system of equations?
Answer:
(3,2)
Step-by-step explanation:
Here's your given:
y = 4x - 10
y = 2
Because they both equal y, that means they equal each other:
2 = 4x - 10
Add 10 on both sides:
12 = 4x
Then, divide 4 on both sides:
3 = x
This represents the x coordinate.
Normally you would put this value into one of the equations to figure out y, but they already gave us that in the beginning:
y = 2
This represents the y coordinate.
Put the two values together to get: (3,2)
26 is what percent of 130?
Please answer quickly no jokes.
First, divide.
26 / 130 = 0.2
Second, multiply.
0.2 * 100% = 20%
Therefore, 26 is 20% of 130
Best of Luck!
Five students picked berries in Australia. They worked for 3 days. If they picked for 8 hours each day and together made a total of $960, how much was each person making per hour?
Answer:
8$ an hour
Step-by-step explanation:
first you do 8×3 then 960÷24 then 40÷5 so in the end you get 8 dollars an hour
At a sale, dresses were sold for $140 each. If the dresses originally cost $200 each,
what percentage of its original price was a dress sold for?
Answer:
30%
Step-by-step explanation:
140 is 70% of 200 which means that the dresses were on sale by 30%
140/200 =
140 ÷ 200 =
0.7 =
0.7 × 100/100 =
0.7 × 100% =
(0.7 × 100)% =
70%;
Then subtract from 100% to get 30%
ready set solve!
you can do this right?
Hi there!
[tex]x + 50.75\geq \frac{387}{4} \\\\x\geq \frac{387}{4} -50.75\\subtract \\x\geq \frac{387}{4} - \frac{203}{4} \\solution:\\x\geq 46\\\\\\[/tex]
The answer is: C
Answer:
Yes your answer is c
Step-by-step explanation:
First convert to mixed fraction.
X + 50.75 > 387 / 4
Then subtract 50.75 from both sides
X + 50.75 - 50.75 > 387 / 4 - 50.75
Finally simplify,
X > 46
(I couldn't do the dash under the greater than sign)
Hope this helps have a good day! :).
(Brainliest would be appreciated)
Simplify the algebraic fraction:
(w+1)(w+1)/w+1
Answer:
w+1 w≠-1
Step-by-step explanation:
(w+1)(w+1)
-------------
w+1
Cancel like terms
w+1 w≠-1
Answer:
w+1
Step-by-step explanation:
when you have a fraction that is composed of multiplied factors you can cancel out the numerator and denominator if they are equal to simplify it. in this cause (w+1) is seen on the top and bottom meaning you can cancel one of them out from the top by cancelling the one on the bottom out.
Which of the following is equal to ? 1 divided by 5^-2
Answer:
5^2 or 25.
Step-by- step explanation:
1 / 5^-2
= 1 / 1/25
= 25.
Answer:
[tex]25[/tex]
Step-by-step explanation:
[tex]1 \div {5}^{ - 2} \\ 1 \div \frac{1}{ {5}^{2} } \\ 1 \div \frac{1}{25} \\ 1 \times \frac{25}{1} \\ = 25[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
okay i got the first one down what about this one GUYS PLEASE HELP BECAUSE I HAVE TO BE SOMEWHERE AND IF I DONT GET THIS THEN I CANT GO PLEEEAASEE REEEEEEE
Answer:
6
Step-by-step explanation:
A circle is centered at T(-6,3)T(−6,3)T, left parenthesis, minus, 6, comma, 3, right parenthesis and has a radius of 111111.
Where does the point N(3,-3)N(3,−3)N, left parenthesis, 3, comma, minus, 3, right parenthesis lie?
Answer:
The point N lies inside the circle
Step-by-step explanation:
A circle is centered at the point T(-6,3) and has a radius of r=1.
To determine if the point N(3,-3) is inside or outside the circle, the distance between N and the point T must be lower than 11.
To calculate the distance between points T and N you use:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
where x1 and y1 are the coordinates of T, and x2 and y2 the coordinates of N.
[tex]d=\sqrt{(3-(-6))^2+(-3-3)^2}=\sqrt{9^2+6^2}=10.81[/tex]
d < 11
The distance d is lower than the radius of the circle. Hence, the point N lies inside the circle
Here's a screenshot from Khan academy for your question!
Solve: -(1/8)d -4 = -(3/8)
Answer:
d = -29
Step-by-step explanation:
-(1/8)d -4 = -(3/8)
Multiply everything by 8 to get rid of the fractions
8*-(1/8)d -4*8 = -(3/8)*8
-d -32 = -3
Add 32 to each side
-d+32 -32 = -3+32
-d = 29
Multiply everything by -1
d = -29
Mae Ling earns a weekly salary of $335 plus a 5.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,200 worth of merchandise?
Answer:
Mae Ling earns a weekly salary of $335.
She also earns 5.0% commission on sales. If she sold 4200 worth of merchandise, she would get 4200 x 5/100 = 210$
Totally, she earns 335 + 210 = 545$
Hope this helps!
:)
Answer:
$545
Step-by-step explanation:
Commission is basically the percentage of the profit made that the salesperson gets to keep. The weekly salary is a fixed amount, so that won't change.
Here, Mae Ling sells $4200 worth of merch, which is the profit made, so the commission will be 5% of that:
5% * 4200
Remember that % is just "out of 100", so 5% = 5/100:
(5/100) * 4200 = $210
Add this to the salary:
335 + 210 = $545
She would make $545.
The scale factor of the blueprint of a wall to the actual wall is 0.07. The area of the actual wall is 36ft² what is the area of the wall on the blueprint?
A) 0.01764ft²
B) 0.07ft²
C) 0.1764ft²
D) 0.252ft²
Answer:
The area of the wall on the blueprint is 0.1764 ft²
Step-by-step explanation:
The scale is the relationship that exists between the magnitudes of a drawing and the actual dimensions.
The scale factor is the ratio of the dimensions in two similar figures. The term "similar figures" refers to figures that have the same shape but different sizes.
The ratio between areas is equal to the squared scale factor. This is, the scale factor for areas is the squared scale factor,
To solve scale problems in this case, then the following proportion must be proposed:
[tex]\frac{representation area}{actual area} =scale factor^{2}[/tex]
Being:
representation area=?actual area=36 ft²scale factor=0.07Replacing:
[tex]\frac{representation area}{36 ft^{2} } =0.07^{2}[/tex]
Solving:
representation area= 0.07²*36 ft²
representation area=0.1764 ft²
The area of the wall on the blueprint is 0.1764 ft²
mia bought 10 boxes of brownies at the store for a total of $64. The tax on the purchase was $5. What was the cost of each box?
Which equation represents this scenario?
a. 10r + 5 + 64
b. 5(10r) = 64
c. 10r - 64 = 5
d. 5 - 10r = 64
Let r represent cost of each box.
We have been given that Mia bought 10 boxes of brownies. So cost of 10 boxes would be [tex]10r[/tex].
We have been given that Mia bought 10 boxes of brownies at the store for a total of $64. The tax on the purchase was $5. So the total cost of 10 boxes would be cost of 10 boxes plus tax.
We can represent this information in an equation as:
[tex]10r=64+5[/tex]
We can subtract 64 from both sides as:
[tex]10r-64=64-64+5[/tex]
[tex]10r-64=5[/tex]
Therefore, our required equation is [tex]10r-64=5[/tex] and option 'c' is the correct choice.