Answer: Hello There!................
Mean = Sum of observation / total number of observation
Mean = 1.35m
1.35 = Sum of length of 7 wood planks/ 7
1.35*7 = Sum of the length of 7 wood planks
9.45 = Sum of the length of 7 wood planks
Let the length of extra added wood plank = x
So,
(Sum of the length of 7 wood planks + x) / 8 = 1.4m
(9.45 + x) / 8 = 1.4
9.45 + x = 1.4 * 8
9.45 + x = 11.2
x = 11.2- 9.45
= 1.75
So,
The length of extra added wood plank = 1.75m
Step-by-step explanation:
Mark me brainest please. Hope this helps. Anna ♥
Determine the height in meters of a triangle with an area of 72 square meters and a base of 28 meters.
Step-by-step explanation:
The area A of a triangle is given by
[tex]A = \frac{1}{2}bh[/tex]
where b is the length of the base and h is its height. Solving for h, we get
[tex]h = \dfrac{2A}{b} = \dfrac{2(72\:\text{m}^2)}{28\:\text{m}}[/tex]
[tex]\:\:\:\:= 5.14\:\text{m}[/tex]
If a garden hose can fill up a 5 gallon
container in 3 minutes, then how long
would the garden hose take to fill a 15
gallon container?
Answer:
9 minutes
Step-by-step explanation:
We can write a proportion to solve
5 gallons 15 gallons
-------------- = ---------------
3 minutes x minutes
Using cross products
5x = 3*15
5x = 45
Divide by 5
5x/5 = 45/5
x = 9
Write the ratio as a fraction in the simplest form 26.1miles : 3.6hours
Answer:36 hours
Step-by-step explanation:
Find the distance between the pair of points.
N(-5. - 14), P(-5. - 3)
d=(Simplify your answer. Type an exact answer, using radicals as needed)
Answer:
78
Step-by-step explanation:show your work
P(x) = x^4+ax^3-x^2+bx-12 has factors of (x-2) and (x+1). Solve the equation P(x)=0
Answer:
because P(x) has factors of (x-2) and (x+1) => x = 2 and x = -1 are the solutions of P(x)
so we have:
[tex]\left \{ {{2^{4}+2^{3}a-2^{2}+2b-12 =0} \atop {1-a-1-b-12=0}} \right.\\=>\left \{ {{8a+2b=0} \atop {a+b=-12}} \right.\\<=>\left \{ {{4a+b=0} \atop {a+b=-12}} \right.\\<=>\left \{ {{a=4} \atop {b=-16}} \right.[/tex]
=> [tex]P(x)=x^{4} + 4x^{3}-x^{2} -16x-12[/tex]
With P(x) = 0
=> [tex]x^{4}+4x^{3}-x^{2} -16x-12 = 0[/tex]
=> ........
Step-by-step explanation:
What type of number is -4?
Choose all answers that apply:
A: Whole number
B: integer
C: Rational
D: Irrational
Answer:
It is integer and rational .....
Step-by-step explanation:
Hope it helps
whats the answer to this?
Answer:
Minimum value: 3
Step-by-step explanation:
Minimum value coordinate: (-5, -3)
Minimum value: l - 3 l (absolute value of -3)
Minimum value: 3
A plane flying overhead at night is located by two
searchlights as shown at right. The two
searchlights are 1200 feet apart. Angle A = 72°
and angle B = 77º. How high is the plane?
Answer:
Step-by-step explanation:
B
2
3
Let the distance of two consecutive stones are x, x+1.
In ΔBCD, we have
tan60
o
=
x
h
⇒x=
3
h
.....(i)
In ΔABC, we have
tan30
o
=
x+1
h
⇒
3
1
=
x+1
h
⇒
3
h
+1=
3
h ......[from equation (i)]
⇒
3
2h
=1
⇒h=
2
3
km
solution
is -4.5 rational or irrational?
Answer:
rational
Step-by-step explanation:
50 + (-16) - 5 help me
Answer:
29
Step-by-step explanation:
[tex]50 + ( - 16) - 5[/tex]
[tex]50 - 16 - 5[/tex]
[tex]50 - 21[/tex]
[tex]\boxed{\green{ = 29}}[/tex]
Answer:
The answer is 29.
HELP PLEASE 25 POINTS
Answer:
5kg > 4500g
1000mL = 1L
3L > 2700mL
Simplify.
(If an answer is undefined, enter UNDEFINED.)
6/10
Answer:
3/5
Step-by-step explanation:
1.) Find the Greatest Common Factor of 6/10.
2
2.) Divide both the numerator and the denominator by the greatest common factor.
6÷2
10÷2
3.) Simplify 6÷2/10÷2
3/5
NEED ANSWER ASAP GIVING 25 POINTS!
Solve 1/2 ÷ 8 = ___.
one seventh
one sixteenth
one twenthieth
one thirtieth
[tex]\dfrac{1}{2}:8=\dfrac{1}{2}\cdot\dfrac{1}{8}=\dfrac{1\cdot1}{2\cdot6}=\dfrac{1}{16}[/tex]
Find the difference of 0.0014 and 0.00061. Write your answer in scientific notation the correct answer gets Brainly
Answer:
7.9000 × [tex]10^{-4}[/tex]
Step-by-step explanation:
0.0014 - 0.00061 = 0.00079
0.00079 in scientific notation = 7.9000×10^-4
Of the 121,301,000 men in the U.S., 3.38% didn’t complete 9th grade. How many men is this?
Answer:
4099973
Step-by-step explanation:
I hope this is correct! :)
Sorry if I'm wrong...
Approximately 4,100,938 men in the U.S. didn't complete 9th grade. To find out how many men in the U.S. didn't complete 9th grade, we can use the percentage given and calculate it as follows: Number of men who didn't complete 9th grade = (Percentage of men who didn't complete 9th grade / 100) * Total number of men in the U.S.
Given:
Percentage of men who didn't complete 9th grade = 3.38%
Total number of men in the U.S. = 121,301,000
Let's calculate:
Number of men who didn't complete 9th grade = (3.38 / 100) * 121,301,000
Number of men who didn't complete 9th grade ≈ 4,100,938
So, approximately 4,100,938 men in the U.S. didn't complete 9th grade.
To know more about grade:
https://brainly.com/question/15160328
#SPJ3
write a decimal equivalent to the fraction
7/50
nfhfjfjfjfuvjgjgkfkfkfjfjgjgjgjgjgkgkgkgk
Answer:
0.14
In December yanni’s chocolate shop received 180 telephone orders. In January they received only 72 telephone orders. By what percent did the number of telephone orders decrease from December to January
Answer:
Step-by-step explanation:
28. Retail Sara Sung is shopping and finds several items that are on sale at 25% off
the original price. The items that she wishes to buy are a sweater originally at
$43.98, a pair of jeans for $38.59, and a blouse for $31.99. She has $100 that her
grandmother gave her for her birthday. If the sales tax in San Mateo, California,
where she lives is 8.25%, does Sara have enough money for all three items?
Explain.
Answer:
Sara has enough money to buy all three items because after the sale and tax, the total of all three items is less than $100 at only $93.01.
Step-by-step explanation:
Solve for the sale:
43.98 × 0.25
10.995
38.59 × 0.25
9.6475
31.99 × 0.25
7.9975
Add these all together:
10.995 + 9.6475 + 7.9975
28.64
Subtract this amount from the original cost of all the items:
(43.98 + 38.59 + 31.99) - 28.64
114.56 - 28.64
85.92
Solve for the sales tax:
85.92 × 0.0825
7.0884
Add the sales tax to the total:
85.92 + 7.0884
93.0084
Round up to the nearest cent:
93.01
93.01 < 100
a particular geography book has 10 chapters aninstructor of seminor wishetocover7 chapter .how many way she can do?
Question 5
1 pts
Write the equation of a line through (5,1), parallel to y=-*+1
o
Answer:
3rd, y=-1/5x
Step-by-step explanation:
PLEASE HELP giving brainliest
Answer:
choose C
Step-by-step explanation:
tctc6pxpycoyxot ỹoyx5s4
algebra 2 question:
i know it is a three system equation, i would just like to know the three equations and how to get them.
ill solve it myself to save you time if ever sent, thank you
Answer:
x + y + z = 49
2.50x + 7y + 1.50z = 147
y + 7 = z
Step-by-step explanation:
Before you even start setting up the equations, create variables for information needed, but not given in the problem:
Variable x = number of tacos
Variable y = number of burritos
Variable z = number of sodas
The first piece of information we are given is the number of items so make this into an equation:
x + y + z = 49
Next we are told how much everything cost in total so make this into an equation:
2.50x + 7y + 1.50z = 147
Lastly, we are informed Rosa bought 7 more sodas than burritos so form an equation using this information:
y + 7 = z
Find the solution set of the inequality 4x-1<11.
Answer:
x < 3
Step-by-step explanation:
First add:
4x - 1 < 11
+1 +1
---------------
4x < 12
Divide:
4x < 12
---- -----
4 4
x < 3
Hope this helped.
=
Initial Knowledge Check
Question 14
A water desalination plant can produce 2 x 100 gallons of water in one day. How many gallons can it produce in 77 days?
Answer:
15400
Step-by-step explanation:
since we know that 200 is in one day.
All we have to do is multiply 200 by 77.
Which is 15400.
If two rectangles have the same perimeter, do they have to be congruent?
Explain your thinking,
9514 1404 393
Answer:
no
Step-by-step explanation:
For the perimeter to be the same, the sum of side lengths must be the same. That does not mean the side lengths themselves must be the same.
A 4×4 rectangle (square) and a 5×3 rectangle have the same perimeter, but are not congruent.
I need help! Really bad a math.
Answer:
12
Step-by-step explanation:
Substitute -18 into the equation
h(-18) = 15 +(-18)/6
h(-18)= 15 + (-2)
h(-18)= 15-2
h(18)=12
12 is the final answer
[tex]\\ \sf\longmapsto h(-18)[/tex]
[tex]\\ \sf\longmapsto 15+\dfrac{-18}{6}[/tex]
[tex]\\ \sf\longmapsto 15+(-3)[/tex]
[tex]\\ \sf\longmapsto 15-3[/tex]
[tex]\\ \sf\longmapsto 12[/tex]
Point Z is located at (3,4). The point will be translated 2 units left and 4 units up. What will be the coordinates of the image point Z'?
Answer:
(1, 8 )
Step-by-step explanation:
A translation of 2 units left means subtracting 2 from the x- coordinate
A translation of 4 units up means adding 4 to the y- coordinate
Z (3, 4 ) → Z' (3 - 2, 4 + 4 ) → Z' (1, 8 )
2 pluz 4 palese !!!!!!!!!!!
Answer:
6
Step-by-step explanation:
2+4=6
(1+1)+(1+1+1+1)=6
Ans: 6
A fruit seller buys some oranges at the rate of ₹ 5 per orange. He also buys an equal number of bananas at the rate of ₹ 2 per banana. He makes a profit of 20% on oranges and a profit of 15% on bananas. In the end, he sold all the fruits. If he earned a profit of ₹ 390, find the number of oranges.
Hello what's your name?
an oil storage tank ruptures and oil leaks from the tank at a rate of r(t)= 100e^(-0.01t) liters per minute. How much oil leaks out during the first hour?
Answer:
Step-by-step explanation:
[tex]\\\displaystyle V=\int\limits^{60}_0 {100*e^{-0.01*t}} \, dx \\\\=-\frac{100}{0.01} *\Bigg [e^{-0.01*t}\Bigg ]^{60}_0\\\\=-10000*(e^{-0.60}-1)\\\\=4511.883663.... (liters)[/tex]
