Answers
Answer:
3 mStep-by-step explanation:
The formed triangles are similar and the ratio of corresponding sides is equal:
x/4 = 9/12x/4 = 3/4x = 3 mThe light source should be at 3 m height
Both triangles are congruent so
[tex]\\ \bull\sf\longmapsto \dfrac{x}{4}=\dfrac{9}{12}[/tex]
[tex]\\ \bull\sf\longmapsto 12x=36[/tex]
[tex]\\ \bull\sf\longmapsto x=3[/tex]
Light source should be at 3m
Related Questions
(3,-3), m=-2
y=
What does y equal?
Answers
Answer:
-9
Step-by-step explanation:
y=-2(3)-3
The function f is defined by f (x)=x²+4.
Find f (3a).
Answers
Solve for r.
18r - 10r - 20r + 2r + 9r = 18
r =
Submit
Answers
Answer:
[tex]r=-18[/tex]
Step-by-step explanation:
1) Combine like terms
[tex]18r-10r-20r+2r+9r=18\\-r=18[/tex]
2) Divide both sides of the equation by the same term
[tex]-r=18\\\frac{-r}{-1} =\frac{18}{-1}[/tex]
3) Simplify
a. Cancel terms that are in both the numerator and denominator
[tex]\frac{-r}{-1} =\frac{18}{-1} \\r=\frac{18}{-1}[/tex]
b. Divide the numbers
[tex]r=-18[/tex]
Answer: -18
Step-by-step explanation:
18r - 10r - 20r + 2r + 9r = 18
-r = 18
18/-1
r = -18
The product of three integers is -40. What could the three integers be?
Explain your thinking.
Answers
Answer:
10, 4, -1
Step-by-step explanation:
10×4=40
40×-1=-40
-40=-40
The three integers could be 8, -5, and 1.
What are integers?A number without a decimal or fractional element is known as an integer, which can be both positive and negative, including zero.
Given that, the product of three integers is -40.
Since the product is negative, there should be at least one negative number.
The three numbers can be 8, -5, and 1.
8 × (-5) ×1 = -40
Hence, the three integers could be 8, -5, and 1.
Learn more about integers:
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Question 2 Three hundred students in a school were asked to select their favorite fruit from a choice of apples, oranges, and mangoes. This table lists the results.
what is the probability that the student is a girl who chose apple as her favorite fruit
Answers
-11/15 divided by 1/12
Answers
Answer:
-8 [tex]\frac{4}{5}[/tex]
Step-by-step explanation:
[tex]\frac{-11}{15}[/tex] ÷ [tex]\frac{1}{12}[/tex] = [tex]\frac{-11}{15}[/tex] x 12
= [tex]\frac{-132}{15}[/tex] = -8 [tex]\frac{4}{5}[/tex]
Find the solution(s) of the system of equations.
y = –x2 + 2
y = x2 + 4x + 4
Answers
Help pls I’ll give BRAINLIEST
Answers
What number is 30% of 20? for 10 points and brainlist
Answers
Answer:
6
Step-by-step explanation:
20*.3=6.
30 percent turns into .3
Mason is turning 5 years old next Saturday. He has picked sidewalk chalk and a helium balloon to give to each of his friends who come to his party. His dad
has a coupon for $10 off of any purchase over $25 at the party supply store. If sidewalk chalk cost $3.29 and balloons cost $1 each, how much did his dad pay
for the favors for 10 of Mason's friends and 1 of each for Mason as well?
Mason's dad paid $36.19 for the chalk and the balloons
Mason's dad paid $47.19 for the chalk and balloons,
Mason's dad paid $37.19 for the chalk and balloons.
Mason's dad paid $26.19 for the chalk and the balloons.
Tytoth
012
NEXT
SAVE & EXIT
BI
614 PM
10/24/2021
Answers
Answer:
dad paid 37.19
Step-by-step explanation:
A club plans to spend no more than 85% of the $1,200.00 in its activity budget to buy as many
radio-controlled helicopters as possible. The price of a helicopter is $110.99 plus sales tax of
6%. What is the greatest number of helicopters the club can buy?
Answers
Sales tax on helicopter
[tex]\sf\longmapsto 0.6(110.99)=6.65[/tex]
Cost of one helicopter
[tex]\sf\longmapsto 110.99+6.65=117.64[/tex]
Now
85% of 1200.00:-[tex]\sf\longmapsto 0.85(1200)= 1020[/tex]
Total helicopters:-
[tex]\sf\longmapsto 1020/117.64\approx 9[/tex]
The temperature at 2 AM was 13°F and the temperature was decreased 12°F and then increased 7°F what integer represents the new temperature
Answers
To tie-dye one T-shirt 3/8 cup of dye is needed. the table shows the number of cups of each color of dye in Mr. Galvez's art class. how many t-shirts can be made using only orange dye?
Amount of Dye
red: 12
orange:3/4
Answers
Answer:
Two shirts can be made
Step-by-step explanation:
We do have 3/4c of orange dye.
We do require 3/8c per T-shirt.
But, using math, it can be shown that 3/4c=2×3/8c
Looking at it this way: 3/4c = 2x3/8c
Where the 2 is the number of T-shirts we can produce.
It is easy now to see: 3/4c = 2x3/8c = 6/8c
So: 34c=68c=34c→ and all of this is orange dye
Find the least common multiple of 15x^2 and 6x.
Answers
Answer:
30x^2
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
There are two solutions, for a quadratic equation that represents the relation between distance and
time.
One of the solutions is positive and the other is negative.
If the values are associated with time, then we will choose
A the positive and the negative
solutions.
B the positive solution.
C neither the positive nor the.
D the negative solution.
Answers
Answer:
B. The Positive Solution
Step-by-step explanation:
Because Time is a positive quantity
Investment account starting balance of $7400 in one year it had increased by 7.5%. How much is this in dollars
Answers
Answer:
7955
Step-by-step explanation:
Help me with maths .
Answers
Answer:
Step-by-step explanation:
m x n / p + (-n) =5 X 8 / -2 + (-8) =-20-8=-28
4% improvement of 82
Answers
solution for what is 4% of 82:
4 percent 82*=
(4:100)*82=
(4*82):100=
328:28=3.28
Step-by-step explanation:
Step 1: our output value is 82
Step 2: it represent the unknown value with x
Step3: from stop one above ,82=100%.
Step4: Similarly. x=4%
Step5: this results in a pair of simple equations
82 equals 100% (1).
x=4%(2).
Step6: by dividing equation 1 by equation 2 and noting that both the rhs right hand side of both equations have the same unit (%) we have unit
(7 pts) A school has 400 feet of fencing to build a set of 3 athletic fields as shown below. What dimensions
should they use to build the largest possible athletic complex? Include appropriate units with your answer.
х
Answers
Answer:
Step-by-step explanation:
the side lengths are (400 - 4x)/2 = 200 - 2x
A = x(200 - 2x)
A = 200x - 2x²
Maximum area will occur when the derivative is set to zero.
dA/dx = 200 - 4x
0 = 200 - 4x
x = 200/4 = 50 ft
each field will be 50 x 33⅓ ft.
total area will be 5000 ft²
Which is not very big for a sports complex. I've owned houses with more floor space than that.
7/2(-4-2/3g)=
Pleas help meeeeeeudkxi
Answers
Answer:
-14g-84/6
Step-by-step explanation:
multiply the numbers
7/2 (-4-1 · 2/3g)
7/2(-4-2/3g)
combine multiplied terms into a signle fraction
7/2(-4-2/3g)
7/2(-4+-2g/3)
find common denominator
7/2(-4+-2g/3)
7/2(3(-4)/3+-2g/3)
combine fractions with common denominator
7/2(3(-4)/3+-2g/3)
7/2(3(-4)-2g/3)
multiply the numbers
7/2(3(-4)-2g/3)
7/2(-12-2g/3)
rearrange terms
7/2(-12-2g/3)
7/2(-2g-12/3)
combine multiplied terms into a single fraction
7/2 · -2g-12/3
7(-2g-12)/2 · 3
distribute
7(-2g-12)/2 · 3
-14g-84/2 · 3
multiply the numbers
-14-84/2 · 3
-14g-84/6
Topics: Precalculus, Matrix
Use the point and the slope to graph each line. Write the equation of the line.
The line passes through point (4,0) and has slope 0.5.
Answers
Answer:
y=0.5x-4.5
Step-by-step explanation:
y=mx+b
Use the information provided to find b
0=0.5(4)+b
-2=b
Therefore, the equation goes down to...
y= 0.5x-2
Step-by-step explanation:
using the formula
m = y -y1/ x - x1
0.5 = y -0/x-4 (0.5 = 1/2)
1/2 = y/x -4
2y = x -4
divide both sides by 2
y = 1/2 ( x -4)
y = 1/2x - 2
y -1/2x = -2
Please help！With steps and explanation
Answers
9514 1404 393
Answer:
dy/dx = (2 -x)/40.005Step-by-step explanation:
(a) Solving the x-equation for u gives ...
u = (x -1)/4
Differentiating both equations with respect to u, we have ...
dy/du = 1 -4u
dx/du = 4
Then dy/dx is ...
dy/dx = (dy/du)/(dx/du) = (1 -4u)/4
Substituting for u gives ...
dy/dx = (1 -4(x -1)/4)/4
dy/dx = (2 -x)/4
__
(b) The approximate change in y is ...
∆y ≈ (dy/dx)(∆x)
For ∆x = 2.98 -3.00 = -0.02, and x=3, the approximate change is ...
∆y ≈ (2 -3)/4(-0.02)
∆y ≈ 0.005
1,400,000
Would that be 1.4 x 10^5 or 1.4 x 10^6
Answers
Answer:
1.4 x 10^6
Step-by-step explanation:
how do I simplify 2x-4(x+5)
Answers
Answer:
-2x-20
Step-by-step explanation:
Answer:
-2x - 20
Step-by-step explanation:
Step 1: Apply the distributive property.
[tex]2x + (-4)(x) + (-4)(5)[/tex] [tex]2x -4x - 20[/tex]Step 2: Combine like terms.
[tex](2x-4x)+ (-20)[/tex] [tex]-2x - 20[/tex]Therefore, the answer is -2x - 20.
Sales Revue • Total sales revenue was $120 million in Quarter 1 • Total sales revenue in Quarter 2 decreased by $10 million compared to Quarter 1. • Sales revenue in the East was $78 million in Quarter 1. • Sales revole in the West increased by $46 million from Quarter 1 to Quarter 2. Question Arrange the sales revenue lo 000.0001) by Quirtor und the percentages in the East and West regions
Answers
The required revenue table categorized by Quarter (Qrt1 and Qrt 2) and Region (East and West) is :
____________Sale Revenue _____________
_______ Qrt 1 ___ Qrt1 %___ Qrt 2 ____ Qrt2 %
East ___ $78 _____65% ____$22 ______ 20%
West___ $42 _____ 35%____$88 ______ 80%
Sales Revenue ; Quarter 1 = $120 million Sale Revenue ; Quarter 2 = $120 - $10 = $110 millionQuarter 1 :
East = $78 million East percentage = (78/120) × 100% = 65%West = 120 - 78 = $42 million West percentage = 100% - 65% = 35%Quarter 2 :
West = $42 + $46 = $88 million West percentage = (88/110) × 100% = 80%East = $110 - $88 = $22 million East percentage = 100% - 80% = 20%Therefore, The distribution table which displays the revenue of the comp may is given above.
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3 apples for $0.59 unit rate
Answers
Answer:
around .20 per apple
Step-by-step explanation:
Cual es la simplificación de 72/64
Answers
9/8
Step-by-step explanation:
divides 72 por 8 que es 9, y 64 dividido entre 8 es 8 dando te 9/8.
You find one quarter, two dimes, and two nickels.
a. Write the dollar amount as a decimal.
Answers
The decimal form would be $0.45
Answer:
$0.55
Step-by-step explanation:
1 quarter is 25 cents
2 dimes is a total of 20 cents
2 nickels is a total of 10 cents
if you add all of it up 25+20+10 you get 55 cents but u need it in dollar amount so it would but $0.55 since u have less than a dollar.
what desmal is inbetween 1/2 and 3/4
Answers
Answer:
1/2 = 0.5
3/4 = 0.75
Step-by-step explanation:
PLEASE HELP!!!!!
will mark brainliest!!!!!
Answers
Answer:
y=8x+3
Step-by-step explanation:
to check plug the numbers to the equation and you will that it is right
Answer:
f(x) = 8x + 3
Explanation:
I knew f(x) = mx +b is the formula for a linear equation and that when x = 0,
f(x) = b
So, when x = 0 in the table, f(x) = 3 and therefore b = 3
Now we can plug in f(x) = 11 and x =1 into f(x) = mx+b along with our b value
11 = m(1) + 3
solving for m we get m = 8 which finishes our unknowns
f(x) = mx + b
f(x) = 8x + 3