Answer:
Step-by-step explanation:
because it needs to be a number times itself to be be a perfect square
Answer:
The square root of 64 gives the original number. If you square 8, you get 64, making it a perfect square. However, 60's square root is only approximate to 60 and very close to it when squared. Therefore, it cannot be a perfect square.
Hope it helps.
4x−2y=14 y=12x−1 solve by substitution
Answer:
x= -3/5
Step-by-step explanation:
4x-2y=14
y=12x-1
4x-2(12x-1)=14
4x-24x+2=14
4x-24x=12
-20x=12
×= -12/20
x= -3/5
the opposite of -2.25
Answer:
2.25
Step-by-step explanation:
That's the opposite.
Answer:
Step-by-step explanation:
2.25
The Eiffel Tower in Paris, France. Lizbeth is 5.5 feet tall. She looks up at an angle of elevation of 72° to see the top from 318 feet away. Based on her measurements, calculate the height of the Eiffel Tower. Round to the nearest hundredth of a foot.
Answer:
The height of the Eiffel Tower will be 318 feet.
Step-by-step explanation:
Please check the attached graph.
From the diagram, it is clear that Lizbeth is 5.5 ft tall, seeing the top from 318 feet away, making an angle of elevation to be 72⁰.
The diagram makes a right-angled triangle.
Given the angle = Ф = 72⁰ Adjacent = a = 5.5 ft Opposite = b = 318 ft Hypotenuse = the height of the Eiffel Tower = c ?
Pythagorean Theorem:
For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:
[tex]c=\sqrt{a^2+b^2}[/tex]
[tex]a=5.5[/tex][tex]b=318[/tex][tex]c=\sqrt{5.5^2+318^2}[/tex]
[tex]c=318[/tex] feet
Therefore, the height of the Eiffel Tower will be 318 feet.
what is 90% round to the thousandth place
Answer:
0.09
Step-by-step explanation:
Move the decimal 3 points over :)
**please mark brainliest!!
the unit digit in the square of 18 is 21 how many natural numbers lie between 12 square and 13 square
Answer:25
Step-by-step explanation:
What is the scale factor of ARST to A UVW?
NEED HELP!
Answer:
B:1
Step-by-step explanation:
the values are the same, so we know the scale is 1:1
hope this helps
Answer:
b)1
Step-by-step explanation:
solve the following
U A room id 48 m long, 3:6 M cared and om hight.
And the cast of dayng tiles on the floor
its 4 walls at the crate of Ro loome
anol
Answer:
is there a picture
Step-by-step explanation:
helppp finals are tomorrow
Answer:
Step-by-step explanation:
y = -5x
When x = -2 ; y = -5* (-2) = 10 ; (-2 , 10)
When x = -1 ; y = -5 *(-1) = 5 ; (-1 , 5)
When x = 0 , y = 0 ; (0 , 0)
When x = 1 ; y = -5 *1 = -5 ; (1 , -5)
When x = 2 ; y = -5 *2 = -10 ; (2 , -10)
Mark these points (-2 , 10) , (-1 , 5) , (0 , 0) , (1 , -5) , (2 , -10) and join them.
If point A is located at (5, -7),
and there are 8 points between
A and B, what could be the
possible coordinates for point
B?
Reena bought a jacket for £45 . six months later ,she sold it for £34.65.What was her percentage loss?
When Reena bought a jacket for $45 and after six months later she sold it for $34.65, then the percentage loss is 25%
Given,
Reena bought a jacket for = $45
Selling price of jacket = $34.65
Here, selling price is lower than cost price, so we can consider it as loss
We know,
Loss percentage = (Loss / Initial cost)×100
Loss = Initial cost - Selling price
Loss = 45 -34.65= $10.35
Loss percentage =[tex](\frac{10.35}{45}) 100[/tex]
=0.25×100
=25%
Hence, when Reena bought a jacket for $45 and after six months later she sold it for $34.65, then the percentage loss is 25%
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Solve the system of equations.
7x−3y=20
y=5x−4
x=
y=
Answer:
Step-by-step explanation:
substitute the value of y in the first equation.
7x-3(5x-4)=20
7x-15x+12=20
-8x=20-12
x=8/-8
x= -1
then you substitute the value of x on the y equation to find y
y=5×-1 -4
y= -5-4
y= -9
Answer:
x = -1, and y = -9
Step-by-step explanation:
This is done by solving one of the two equations for x or y, then substituting it in place of that variable in the other equation.
Since y is already clearly defined in the second equation let's go with that:
[tex]Given\ 7x - 3y = 20,\ and\ y = 5x - 4[/tex]
[tex]7x - 3(5x - 4) = 20[/tex]
[tex]7x - 15x + 12 = 20[/tex]
[tex]7x - 15x = 20 - 12[/tex]
[tex]-8x = 8[/tex]
[tex]x = -1[/tex]
Now we can replace x in the equation for y with -1:
[tex]y = 5(-1) - 4[/tex]
[tex]y = -5 - 4[/tex]
[tex]y = -9[/tex]
To make sure our answers are correct, let's substitute them into the original equations:
[tex](-9) = 5(-1) - 4\\-9 = -5 - 4\\-9 = -9[/tex]
Good, let's test the other equation
[tex]7(-1) - 3(-9) = 20\\-7 - (-27) = 20\\-7 + 27 = 20\\20 = 20[/tex]
So we know that our answer is correct.
Pls be right will give brainliest
Answer
15
Step-by-step explain
6+9=15
Please help
I’m stuck on this problem.....
Harry received a package for his birthday. The package
weighed 357,000 centigrams. Select the conversions that
are equivalent to 357,000 centigrams. Mark all that apply.
3,570,000 decigrams
3,570 grams
3.57 kilograms
357 decigrams
Answer:
3.57 kilo
Step-by-step explanation:
factors of tens due to metric system
Answer:
3,570 grams
3.57 kilograms
Step-by-step explanation:
1 centigram is 0.1 decigrams357,000centigram=35,700 decigrams
1 centigram is 0.01 grams357,000 centigram=3570 grams
1 centigram=1e-5 kilograms357,000 centigrams=3.57 kilograms
what is 50% of 180 ?
Answer:
90
Step-by-step explanation:
Answer:
The answer is 90.
Step-by-step explanation:
I hope this helps and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
The price of Nintendo Switch was reduced from $300 to $240 during a
Black
Friday sale. By what percentage was the price of the gaming system
reduced?
Answer:
20% or .2
Step-by-step explanation:
First divide 240 by 300
240/300
this gives you .8, you would then subtract that from 1 to get .2
You can check your answer by multiplying 300 by .2
300*.2
this gives you 60 which is the difference between the 2 numbers
Hope this helps
The difference of a number x and 3 is at most -2
Answer:
x is a number "the difference of" means subtract
therefore the "difference between 3 and a number " would be 3-x=-2
3-5= -2
Step-by-step explanation:
A 15% tip on a $14.95 lunch bill is about
The weight in pounds of seven packages are 25, 10, 20, 4, 6, 3, and 9. The weight of an eighth package is added to the list. The mean weight of the eight packages is 12 pounds. What is the weight in pounds of the eight package?
Answer:
7 because to get the mean it has to be in the middle which comes down to the Number 9 package so that means the the 8th package has to be 7 pounds
Step-by-step explanation:
During an online sale, you buy three sweatshirts and two pairs of sweatpants for $85.50. Later you buy three more sweatshirts and four more pairs of sweatpants for $123. (You can never have too many sweats during a pandemic). What is the sale price of each sweatshirt and each pair of sweatpants?
Answer:
Step-by-step explanation:
let
x = price of a sweatshirt
y = trice of sweatpants
three sweatshirts and two pairs of sweatpants for $85.50
3x + 2y = 85.50
three more sweatshirts and four more pairs of sweatpants for $123
3x + 4y = 123
by solving the system of equations
3x + 2y = 85.50
3x + 4y = 123
we find
x = $16
y = $18.75
An order of beef nachos is $2.00 more than an order of
chicken nachos. You and your friends order 2 orders of chicken nachos and
one order of beef nachos for a total of $21.50. Determine the price of a
single order of chicken nachos.
Answer:
8.75
Step-by-step explanation:
(21.50/2)-2
Answer:
a single order of chicken nachos is $6.50
Step-by-step explanation:
Because 2 orders of chicken nachos is $13.00($6.50 times 2) and one order of beef nachos is $8.50, add the $13.00 and $8.50 and you get $21.50.
Have a great day!
Can someone explain what I'm supposed to do here? I have to have this in by tonight, as well.
Answer:
5-6y+7b
Step-by-step explanation:
ok boii 32ed32d d d 3 . 2 2 22 2
Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If AD=3AD=3 and AC=12,AC=12, what is the length of \overline{AB}? AB ? (Note: the figure is not drawn to scale.)
Answer:
The answer is "6"
Step-by-step explanation:
[tex]\to x^2 = 3 \times 12 \\\\\to \sqrt{6^2 +3^2} = \sqrt{45} =\sqrt{9} \sqrt{5} = 3\sqrt{5} \\\\\to x= 6[/tex]
The value of [tex]\overline{AB} =6[/tex]
which of these is a simplified form of the equation 6y + 4 = 8 + 2y + 2y?
6y + 4 I guess is the answer for the question
I need some answers be quick pls. If you get it right I will give you brainliest
Step-by-step explanation:
multiple the power and real number
Answers;
a) Multiply 2 by 3: 6ab.
b) Multiply [tex]c^{5}[/tex] by c by adding the exponents: c^6 or [tex]c^{6}[/tex].
c) Simplify the expression. 10y^7 or [tex]10y^{7}[/tex].
d) Simplify the expression. 12g^4h^5 or [tex]12g^{4}h^{5}[/tex].
A pyramid is made above a cuboid with measure 90cm×50cm×225cm. If the height of the pyramid including cuboid is 240cm, find the total volume.
Answer: whatever do I care
Step-by-step explanation: I don’t care
The required volume of the pyramid is, 22500 cubic cm.
What is volume?Volume is referred to as the area occupied within an object's three-dimensional space.
Given that,
The length of cuboid = 90 cm
Width of cuboid = 50 cm
And height of cuboid = 225 cm
Let the height of the pyramid is x cm
Since the height of cuboid and pyramid = 240 cm
⇒ 225 + x = 240
⇒ x = 15 cm
Since the base of pyramid will be the same as the base of cuboid,
The volume of pyramid = 1/3 x base area x height
= 1/3 x 90 x 50 x 15
= 22500
The volume of the pyramid is 22500 cubic cm.
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Point B is in quadrant __________ and Point D is in quadrant __________.
A. I, II
B. IV, I
C. II,I
D.IV,III
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Which fractions are less than 1/2
Answer:
1/4, 4/10, 3/7, 24/50 are all less than 1/2.
Step-by-step explanation:
15.31 x 0.7
10.717
11.717
107.17
1.0717
Answer:
10.717
Step-by-step explanation:
15.31×0.7 = 10.717
HELP 17 POINTS Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. What value of p makes the equation true?
Answer:
0.125
Step-by-step explanation:
First, remove the 1/8 by subtracting 1/8 on both sides
-3p = -3/8
Then, isolate the variable by diving each side by -3
p = 0.125
Answer:
0.125
Step-by-step explanation:
did the test and got it right!!
A book has a font and a back and 400 pages. The front and back cover are each 0.9mm thick, measured to 1 decimal place. Each page is 0.13mm thick measured to 2 decimal places calculate the minimum thickness of the book
Answer:
53.8 mm
Step-by-step explanation:
Front page and a back page + 400 pages.
The front and back cover are each 0.9mm thick, measured to 1 decimal place.
Total thickness of front and back page = 0.9mm × 2
= 1.8 mm
Each page is 0.13mm thick measured to 2 decimal places
Total number of pages = 400
Total thickness of the pages = Thickness of each page × Total number of pages
= 0.13mm × 400
= 52 mm
minimum thickness of the book = Total thickness of front and back page + Total thickness of the pages
= 1.8mm + 52mm
= 53.8 mm
The minimum thickness of the book is 53.8 mm