Answer:
8.94
Step-by-step explanation:
√ 80 is between perfect squares √64 and √81
or between 8 abd 9.
the approximate value is 8 + (80-64)/(81-64) =
8 + 16/17 = 8 + 0.94 = 8.94
The value of √80 is 4✓5 and it's between two perfect square 4 and 9
What are perfect squares?A square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 3² and can be written as 3 × 3.
Examples of perfect squares include 4, 9 , 16 , 25 e.t.c
The value of √80 is calculated by using perfect square.
√80 = √ 16 × √5
= 4√5
Therefore we can say that the value of √80 is 4√5 and these value is between two perfect square 4 and 9.
learn more about perfect squares from
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Multiplication of -2 , -7 and -10 gives
Answer:
it gives you -140 if you multiply all of them
Answer:
-140
Step-by-step explanation:
–2×-7= 14
minus Minus cut so 14 will be Positive no
then, 14×-10=-140
plus minus = Minus
so,
-140 is the answer
mark me brainliest if I am correct
What percentage of households in the survey have four or more televisions?
Answer:
2.5% ?
Step-by-step explanation:
.025 as percentage is 2.5%
4. Choose the best answer.
A point is a location in space that has neither size nor
O
existence
dimension
O understanding
O proof
f(x) = -x + 1; reflection in the y-axis
replace blank with <,>, or = to make a true statement: 2^5 blank
4^2
Step-by-step explanation:
2^5 > 4^2
32 > 16
hopefully it makes
:)
What is the mean of the data set: 12. 19, 38, 52. 55 Answer must be to the tenths
place to be counted correct.
[tex]\boxed{\sf Mean=\dfrac{Sum\:of\:terms}{No\:of\:terms}}[/tex]
[tex]\\ \sf\longmapsto Mean=\dfrac{12+19+38+52+55}{5}[/tex]
[tex]\\ \sf\longmapsto Mean=\dfrac{176}{5}[/tex]
[tex]\\ \sf\longmapsto Mean=35.2[/tex]
a car drives 5km in 4 minutes. what is the speed of the car in kilometers per hour
Answer:
810 km/h
I hope it's helps you
S(-4, -6) and T(-7, -3); Find R.
Answer:
(13,-6)
Step-by-step explanation:
The midpoint is the exact halfway point, so all you need to do is find the distance between those two points and apply it again.
First find the x coordinate. The distance from -9 to 2 is 11. So you add 11 to 2, and you get 13, which is your x coordinate.
Then do the same thing with the y coordinate. And you get -6.
Your endpoint is (13,-6)
From 1985 through 1995, the yearly gross farrm revenue (in millions) in the United States can be modeled by the function R(t)=-t^2+7t+159 and the yearly farm cost (in millions) in the United States can be modeled by the function c(t)=t^2+131 where t is the number of years since 1985. Write a new function, P(t), that models the yearly profit after 1985
The profit function is simply the difference between the revenue function and the cost function. The profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]
Given that:
[tex]R(t) = t^2 + 7t + 159[/tex]
[tex]c(t) = t^2 + 131[/tex]
The profit function P(t) is calculated as follows:
[tex]P(t) = R(t) - c(t)[/tex]
So, we have:
[tex]P(t) = t^2 + 7t + 159 - (t^2 + 131)[/tex]
Open brackets
[tex]P(t) = t^2 + 7t + 159 - t^2 - 131[/tex]
Collect like terms
[tex]P(t) = t^2- t^2 + 7t + 159 - 131[/tex]
[tex]P(t) = 7t + 28[/tex]
Hence, the profit function that models the yearly profit after 1985 is [tex]P(t) = 7t + 28[/tex]
Read more about profit functions at:
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please help thanks help asap
Can someone help me.....
Answer:
The square root of 2 is between 1 and 2, so radical 2 is about 1.4.
Step-by-step explanation:
You can plot a 1 on the very left and a 2 on the very right of the number line.
Since there is no formal square root of 2, you have to estimate.
It has to be less than 2 because if you multiply 2 * 2 you get 4 and that's too big; we want to get 2.
It also has to be greater than 1 because 1 * 1 = 1 and that's too low.
I would estimate it to be right before the middle line.
solve (-2x) x 8x
its a simple question no equations just solve it its a quadratic expression
Answer:
-16x²
Step-by-step explanation:
-2x*8x= -16x²
which is parallel to the line y = -5/8x+6
Answer:
The answer lies in the gradient.
Step-by-step explanation:
The gradient in this equation is -5/8. If any line has the same gradient as the equation above they are parallel because they have the same slant or tilt. Gradient determines if a line is parallel between linear line graphs. If the gradient between two linear line graphs are equal that means that they are parallel.
First identify what is the gradient of a line. The gradient is usually the number that is multiplied with x. In this case (-5/8x), -5/8 is the gradient.
Hope this help.
solve the formula for y (pls give steps)
-10x +2y = 4
Solve the inequalities;
1. |4x + 5| + 2 ≥ 10
2. |2x + 3| + 6 > 0
Answer:
Number two: x > -9/2, x < 3/2
Number one: x is less than or equal to 3/4, x is greater than or equal to - 13/4
Step-by-step explanation:
Number one:
|4x+5| > 10-2
|4x+5| > 8
4x+5 > 8
-(4x+5) > 8
x > 3/4
x < -13/4
x > 3/4, x < -13/4
(all of these signs are greater than or equal to and less than or equal to)
Number two:
|2x+3| > -6
2x+3 > -6
-(2x+3) > -6
x > -9/2
x < 3/2
x> -9/2, x < 3/2
(all of these signs are correct and not greater than or equal to or less than or equal to)
1.Find n. 2. Find n. 3.Find n. 4.Find n.
2/9 = 14/n 12/18 = n/36 30/38 = 15/n 60/66 = n/22
Step-by-step explanation:
cross multiply all equations seperately
1,n=63
2.n=24
3.n=19
4.n=20
Please help with this question 10 points!!!!
The paper on a roll is 5.5 metres long. Ahmed cuts as many pieces as possible, each of length 75 cm from the roll.
Calculate the number of pieces.
with full workings please
[tex] \large Answer : [/tex]
Total length of paper = 5.5 meters
5.5 × 100 cm ( conversion into cm )550 cmlength of each peice = 75 cm
Total number of pieces cut :
550 ÷ 75 7.33therefore, total number of pieces is 7 and some of the paper was left.
The perimeter of a rectangular garden is 24. If the length is half the width, what is
the width?
Let length be x
Width be 2xATQ
[tex]\\ \sf\longmapsto 2(L+B)=24[/tex]
[tex]\\ \sf\longmapsto 2(x+2x)=2=[/tex]
[tex]\\ \sf\longmapsto 2(3x)=24[/tex]
[tex]\\ \sf\longmapsto 6x=24[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{24}{6}[/tex]
[tex]\\ \sf\longmapsto x=4[/tex]
Step-by-step explanation:
let the length be X and breadth be 2x
p=2(l+b)
24=2(X+2x)
24=2x+4x
24=6x
24÷6=x
4=X
so,we know that
X=4 and 2x=2 X 4= 8
therefore the value of breadth or width is 8
Solve the proportion. 4/9 = 13/x
a. 2.77
b5. 78
c. 29.25
Please help me with number 4.
hich of the following is a true statement about perpendicular lines?
A.
Perpendicular lines intersect to form a 45° angle.
B.
Perpendicular lines can also be parallel lines.
C.
Perpendicular lines intersect in at least two points.
D.
Perpendicular lines cannot be parallel to each other.
Answer:
C.
perpendicular lines intersect in at least two points..
ok im not sure sorry
7. Find the perimeter of the figure.
x+12
x + 2
Answer:
The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle.
............-4
6.7x10 =
Answer:
The Answer is -467
Step-by-step explanation:
all it did was move the decimal to the right once
Name a 3 digit number divisible by 4,5,9
9514 1404 393
Answer:
180
Step-by-step explanation:
The smallest such number is 4·5·9 = 180. Any multiple of 180 will be divisible by 4, 5, and 9.
Write each in scientific notation. a. 4.356,000 b. 0.1367
Suppose that an individual has a body fat percentage of 16.8% and weighs 152 pounds. How many pounds of his weight is made up of body fat? Round your answer to the nearest tenth.
Step-by-step explanation:
16 , 8 % = ? p 100% = 152 p [tex]\pmb {? =\dfrac{152\cdot 16, 8}{100}=25, \underline 536 p\approx25,5 p }[/tex]Convert 250 m to km
.......
Answer:
0.25km
Step-by-step explanation:
km = 1000m
250/1000 = 0.25
Answer:
0.25 km
Step-by-step explanation:
1 km = 1000 m
250 ÷1000 = 0.25 km
Otis has $6.72, and he wants to buy some pencils that cost $1.12 each. How many pencils can he buy?
4 pencils
5 pencils
6 pencils
7 pencils
Answer:
Otis can buy 6 pencils...
Answer:
Otis has $6.72, and he wants to buy some pencils that cost $1.12 each. How many pencils can he buy?
4 pencils x
5 pencils x
6 pencils :D
7 pencils x
Step-by-step explanation:
6 pencils
Solve the equations using addition or subtraction.
5.5=-2+d
Answer: d=7.5
Step-by-step explanation: 5.5=−2+d d−2+2=5.5+2 d=7.5
Answer:
First rewrite the question: d + -2 = 5.5
Step-by-step explanation:
3.5 is your answer.
