Answer:
= 49
Answer.
Step-by-step explanation:
Solution:-
Length of the road = 5 miles
Distance between every two streetlights = 1/10 miles
Total number of streetlights placed on the new road = 5 ÷ 1/10
= 5*10
= 50 streetlights
As there is already a streetlight at the beginning of the new road, so the number streetlights will be = 50 - 1
Answer:
49 is correct answer
Step-by-step explanation:
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Algebra 26.2 Micipoint formula: find the midpoint tot
Math
Language arts
Learn with an example
(9,7) and K(5, 3) are the endpoints of a line segment. What is the midpoint M of that line
segment?
Write the coordinates as decimals or integers.
M=
Answer:
Step-by-step explanation:
The midpoint of any line segment is the average of the coordinates of the endpoints.
mp=((x2+x1)/2, (y2+y1)/2), in this case we have points (9,7) and (5,3) so
mp=((9+5)/2, (7+3)/2)
mp=(7,5) (x=7 and y=5)
Simplify (- sqrt x-4)^
Answer:
x-4
Step-by-step explanation:
A negative base raised to an even power equals a positive.
So you're left with sqrt x-4 ^2
Then reduce the index of the radical and the exponent with 2
x-4
Hope this helps
The correct expression will be ( x- 4 ). So option B is right.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
The expression will be solved as:-
E = ( - √(x-4))²
The product of two minuses is positive and the product of the same square root numbers will be the number so the equation will become.
E = -√(x-4) x -√(x-4)
E = x - 4
Therefore the correct expression will be ( x- 4 ). So option B is right.
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HELP PLEASE HELP PLS HELP THIS WORK NEED TO BE FINISH HELP ME WITH IT WILL BE REWARD BRAINLIEST AND WILL GIVE 100 PIONT FOR FREE!
Answer:
The simplified expression is 498,400÷7. The value is 71,200.
Step-by-step explanation:
712×25×14×2= 498,400.
498,400÷7 becomes our expression. And that answer is 71,200. I hope this helps
Answer:
Step-by-step explanation:
substitute
a + 2p = 4
x − 2y = 6
Amber's rectangular patio is 30 feet
long. The ratio of length to the
width is 4 to 2. What is the width of
Amber's patio in yards?
(Hint: 3 feet = 1 yard)
Some one please help me thx
Answer:
boink oink
roses and red,
i am a stoner,
i peed on my face,
becuase i have
a bo ner
Step-by-step explanation:
You are making a scale model of your house. Your bedroom is 10'x8'. In your scale model, it will be the longer side of the bedroom will be 3 inches. How big will the shorter side be?
Answer:
2.4 inches
Step-by-step explanation:
Actual Dimension of bedroom = 10' * 8'
In the model ; longer side = 3 inches
Length of shorter side in the model ;
Longer side of actual bedroom = 10'
Scale factor * length = model length
Scale factor * 10 = 3
Scale factor = 3/10
Hence, length of shorter side :
Scale factor * actual length of shorter side
3/10 * 8
24 / 10
= 2.4 inches
Which of the lines below is perpendicular to y= -2/5
A.y=-5/2x-9
B.y=-2/5x+8
C.y=5/2x+1
D.y=2/5x-3
During a scuba dive, Lainey descended to a point 18 feet below the ocean surface. She continued her descent at a rate of 25 feet per minute. Write an inequality you could solve to find the number of minutes she can continue to descend if she does not want to reach a point more than 143 feet below the ocean surface. Use the variable t for time.
Answer:
Inequality representation :
18 + 25t ≤ 143 ;
t = 5
Step-by-step explanation:
Given that:
Initial dive, I = 18 feets
Descent rate, r = 25 feets / minute
Maximum depth reached = 143 feets
Time = t
Inequality representation :
18 + 25t ≤ 143
To solve for t
25t ≤ 143 - 18
25t ≤ 125
Divide both sides by 25
25t / 25 ≤ 125 / 25
t ≤ 5
At a summer camo 23 of the boys and 17 of the girls can swim. There are 9 boys and 11 girls at the camp who cannot swim. What is the ratio of the number of children who can swim to the number of children who cannot swim
Answer:The ratio of the number of children who can swim to the number of children who cannot swim=2:1
Step-by-step explanation:
Number of children that can swim = N umber of boys and girls that can swim =23+17 =40
Number of children that cannot swim = N umber of boys and girls that cannot swim=9+11=20
=40:20
=2:1
List the sides of the triangle in order from
shortest to longest.
Joshua bought one pound of strawberries for $3.20. What is the price, in dollars per ounce of strawberries?
\text{1 pound}=
1 pound=
\,\,\text{16 ounces}
16 ounces
Before you try that problem, answer the question below.
How many ounces of strawberries did Joshua buy?
HELP 10
Answer:
0.20 dollar per oz and Joshua brought 16 oz of strawberry
Step-by-step explanation:
1 lbs = 16 oz
3.20÷ 16
= 20 cent
20 cent per one ounce of strawberry
1 cent = 0.01 dollar
20 cent = 20 × 0.01
20 cents = 0.2 dollar
Chris has a total of 360 minutes on his monthly phone plan. If there are thirty
days in a month, which equation can be used to find how many minutes, m.
Chris can use each day?
Answer:
10800
Step-by-step explanation:
so what i was thinking is 360 x 30 so I added that up and.. then I got my answer (so so sorry if its wrong)
Box A contains 10 pens that are either red or blue in colour. Box B contains 23 pens that are also either red or blue in colour. The number of blue pens in Box B is twice the number of blue pens in Box A while the number of red pens in Box B is thrice the number of red pens in Box A. Write a pair of linear equations using b as the number of blue pens in Box A and r as the number of red pens in Box A.
Answer:
b + r = 10 - - (1)
2r + 3b = 23 - - (2)
Step-by-step explanation:
Number of Blue pens in box A = b
Number of red pens in box A = r
BOX A :
Contains 10 pens that are either red or blue
b + r = 10
BOX B:
Contains 23 pens that are either red or blue ;
Red pens in box B = 2 tines the number of red pens in box A
Blue pens in box B = 3 times the number of blue pens in box A
2r + 3b = 23
Anything raised to a power of zero is always:
Answer:
1
Step-by-step explanation:
u cant really multiply anything so it 1
When leaving from the port station at sea level, the Carmelit funicular travels 5,658 feet horizontally along a slope of 14.6/94.3. What is the elevation of the top station?
Answer: 876 feet
Step-by-step explanation:
Given
Carmelit travels 5658 feet horizontally
The slope of trajectory is [tex]\dfrac{14.6}{94.3}[/tex]
We know, the slope is
[tex]\Rightarrow \text{slope}=\frac{\text{Vertical distance}}{\text{horizontal distance}}\\\\\Rightarrow \dfrac{14.6}{94.3}=\dfrac{Y}{5658}\\\\\Rightarrow Y=876\ feet[/tex]
Hence, the elevation of the top station is 876 feet
Researchers are investigating the effectiveness of leg-strength training on cycling performance. A sample of 7 men will be selected to participate in a training program that lasts for one month. Peak power during cycling will be recorded for each man both before training and after training. The mean difference in times will be used to construct a 95 percent confidence interval for the mean difference in the population.When all other things remain the same, which of the following statements about the width of the interval is correct?A) The interval will be narrower if 15 men are used in the sample.B) The interval will be wider if 15 men are used in the sample.C) The interval will be narrower if 5 men are used in the sample.D) The interval will be narrower if the level is increased to 99% confidence.E) The interval will be wider if the level is decreased to 90% confidence.
Answer:
idc
Step-by-step explanation:
Using the figure below write an algebraic equation that represents relationship of the area as a product equal to the area as a sum. PLEASE I NEED HELPP
Answer:
3x^2+5x-2=0
Step-by-step explanation:
3x*x -x+6x-2
=3x^2+5x-2
Hope it helps :)
885 = 5(x + 19)
what is x?
Answer:
x = 158
Step-by-step explanation:
Given
885 = 5(x + 19) ← divide both sides by 5
177 = x + 19 ( subtract 19 from both sides )
158 = x
Answer: x=158
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
write the following using algebraic notation, using the letter x for any unknown numbers. i think of a number, double it, then add 9
Answer:
2x+9
Step-by-step explanation:
I hope this helps :)
Complementary and Supplementary Angles
Answer: See explanation
Step-by-step explanation:
1. Complementary (adds up to 90°)
2. Neither
3. Supplementary (ads up to 180°)
4. Adds up to 90° since its complementary
22 + 4x = 90
Subtract 22 from both sides
4x = 68
Divide both sides by 4
x = 17
5. Adds up to 90° since its complementary
65 + x + 2 = 90
x + 67 = 90
Subtract both sides 67
x = 23
6. Adds up to 90° since its complementary
43 + x - 7 = 90
x + 36 = 90
Subtract both sides by 36
x = 54
7. Adds up to 180° since its supplementary
29 + x - 5 = 180
x + 24 = 180
Subtract both sides by 24
x = 156
8. Adds up to 180° since its supplementary
110 + 7x = 180
Subtract both sides by 110
7x = 70
Divide both sides by 7
x = 10
9. Adds up to 180° since its supplementary
72 + x + 4 = 180
x + 76 = 180
Subtract both sides by 76
x = 104
10. Adds up to 90° since its complementary
49 + x + 3 = 90
x + 52 = 90
Subtract both sides by 52
x = 38
11. Adds up to 180° since its supplementary
92 + x + 78 = 180
x + 170 = 180
Subtract both sides by 170
x = 10
12. Adds up to 180° since its supplementary
19 + x - 50 = 180
x - 31 = 180
Add 31 to both sides
x = 211
13. Supplementary angles add up to 180°
∠C + ∠D = 180
∠C + 45 = 180
Subtract both sides by 45
∠C = 135°
Hope I helped!
Evelyn answered 42 questions correctly on her multiple choice history final and earned a grade of 21%. How many total questions were on the final exam?
Answer:
200 questions
Step-by-step explanation:
Given data
Let the total questions be x
so that
21% of x= 42 questions
let us solve for x
21/100*x= 42
0.21*x= 42
0.21x= 42
Divide both sides by 0.21
x= 42/0.21
x= 200 questions
Hence the questions are 200 questions
100 pts
Question 6
A grid shows the positions of a subway stop and your house. The subway stop is located at (-2,8)
and your house is located at (-8,0). What is the distance, to the nearest unit, between your house
and the subway stop?
O 15
010
07
0 20
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what are the zeros of the quadratic equation (x-11)(x-5)=0
9514 1404 393
Answer:
11, 5
Step-by-step explanation:
Zeros are the values of x that make the product zero. The product will be zero if and only if one or more of the factors is zero.
x -11 = 0 ⇒ x = 11
x -5 = 0 ⇒ x = 5
The values x=11 and x=5 are zeros of the quadratic.
PLZ HELP ME ITS ALMOST DUE
Write the word sentence as an inequality. Then solve the inequality.
The product of −2 and a number x is greater than 30.
Step-by-step explanation:
divide by 2 then reverse
My three cars can travel the same distance on a tank of gas. My second car gets 6 kilometers per liter more than
my first, but its tank holds 3 fewer liters than my first. My third car gets 6 kilometers per liter less than my first, but its tank holds 6 more liters
than my first. How many kilometers can each car travel on a tank of gas?
Answer:
16
Step-by-step explanation::
wrote on NEML, got it right,
Distance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds. The millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.
Given information
All three cars can travel the same distance on a tank of gas.
The second car gets 6 kilometres per liter more than the first, but its tank holds 3 fewer liters than the first.
The third car gets 6 kilometres per liter less than the first, but its tank holds 6 more liters than the first.
Suppose the first car runs m. kilometre per liter. Then the second car will run (m+6) kilometre per liter and third car runs (m-3) kilometre per liter.
Suppose the first car has l liter in the tank. Then the second car has (l-3) liter and third car has (l+6) liters in her tank.
DistanceDistance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds.
As the distance traveled by the first car is same as the second one. Hence,
[tex]\begin{aligned}\\\dfrac{m}{l} &=\dfrac{m+6}{l-3} \\ml-3m&=ml+6l\\m&=-2l\\\end[/tex]
Let the above equation is equation 1.
As the distance traveled by the second car is same as the third one. Hence,
[tex]\begin{aligned}\\\dfrac{m-3}{l+6} &=\dfrac{m+6}{l-3} \\ml-3m+9-3l&=ml+6l+6m+36\\l+m&=-3\\\end[/tex]
Put the value of m in the above equation from equation 1,
[tex]l-2l=-3\\l=3[/tex]
[tex]m=2\times3=6[/tex]
Thus the value of the m is 6.
With the millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.
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please help me ill mark you brainliest and please show your work :)
HURRYYY A company is introducing a new product. The equation y = –0.001(x – 600)2 + 90 predicts the expected profit, in thousands of dollars, where x represents the number of thousands of units of the product sold by the company. How many units must be sold to yield a maximum profit? 90 600 90,000 600,000
Answer:
d
Step-by-step explanation:
^u^
The amount of units that must be sold to a number yields a maximum profit is 600. Hence 600 units will be the correct option.
How to find maxima?To find the maxima of any function it needs to differentiate with respect to the dependent variable and equate with zero to get stationary points.
After achieving the stationary points it needs to put on the double derivative of that function to check whether it's maxima or minima.
If the double derivative got negative then it will be maxima.
Given that function
f(x) = -0.001(x-600)² + 90
By differentiation
[tex]$f'(x)$[/tex] = -0.002(x - 600) + 90
Now equate with zero
-0.002(x - 600) + 90 = 0
x - 600 = 0
x = 600
Now checking the x at double derivative
[tex]$f''(x)$[/tex] at x = 600 it is coming out to -0.002 which is negative Hence, the 600 units will be the correct answer.
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[tex] {2}^{2} [/tex]
[tex]2 \times 2 = [/tex]
Answer:
it's 16
Step-by-step explanation:
hey guys help me with this
and pls explain your answer
Answer:
720
Step-by-step explanation:
in an all year is 8760
