Answer:
-23
Step-by-step explanation:
6×-4 -1.... (6)(-4)-1
-24-1.....-24-1
-23
Find the value of x in the triangle shown below NEED HELP ASAP
Answer:
x = 3√10
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityTrigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
a is a leg b is another leg c is the hypotenuseStep-by-step explanation:
Step 1: Identify Variables
Leg a = 9
Leg b = 3
Hypotenuse c = x
Step 2: Solve for x
Substitute [PT]: 9² + 3² = x²Rearrange: x² = 9² + 3²Exponents: x² = 81 + 9Add: x² = 90Isolate x: x = 3√10To find the value of x we can apply Pythagoras theorem in this right angled triangle.
So let's apply!
[tex]{ \boxed{ \sf{ \mapsto {Hypotenuse}^{2} ={Base }^{2} +{Perpendicular }^{2} }}}[/tex]
[tex] \sf{ : \implies {x}^{2} = {9}^{2} + {3}^{2} }[/tex]
[tex] \sf{ : \implies {x}^{2} = 81 + 9 }[/tex]
[tex] \sf{ : \implies {x}^{2} = 90 }[/tex]
[tex] \sf{ : \implies {x} = \sqrt{2 \times 3 \times 3 \times 5} }[/tex]
[tex] \sf{ : \implies {x} = 3 \sqrt{10} }[/tex]
Hence this is the value of x.
What number 21# I’ll mark brainliest
Answer:
B
Step-by-step explanation:
It is b
Can you see if it is this right
Find the total cost. $20 meal; 9% sales tax; 20% gratuity after the sales tax has been added Group of answer choices
Answer: $26.16
Step-by-step explanation:
Total cost = Meal cost + Sales tax + Gratuity after sales tax
Sales tax = 9% * 20
= $1.80
Gratuity after sales tax is added = 20% * (20 + 1.80)
= $4.36
Total cost = 20 + 1.80 + 4.36
= $26.16
A 2000 gallon fish aquarium can be filled by water flowing at a constant rate in 10 hours. When a decorativve rock is placed in the aquarium, it can be filled in 9.5 hours. Find the volume of the rock in cubic feet
Answer:
The volume of the rock is 13.368 cubic feet.
Step-by-step explanation:
The volume of the rock ([tex]V_{r}[/tex]), measured in gallons, is equal to the volume of the fish aquarium without the decorative rock ([tex]V'[/tex]) minus the volume of the fish aquarium with the decorative rock ([tex]V''[/tex]), both measured in gallons.
Since the water flow is at constant rate, the volume of the rock is expressed by the following equation:
[tex]V_{r} = V' - V''[/tex]
[tex]V_{r} = \dot V \cdot (\Delta t_{1}-\Delta t_{2})[/tex] (1)
Where:
[tex]\dot V[/tex] - Flow rate, measured in gallons per hour.
[tex]\Delta t_{1}[/tex] - Filling time of the fish aquarium without the decorative rock, measured in hours.
[tex]\Delta t_{2}[/tex] - Filling time of the fish aquarium with the decorative rock, measured in hours.
And the flow rate is:
[tex]\dot V = \frac{2000\,gal}{10\,h}[/tex]
[tex]\dot V = 200\,\frac{gal}{h}[/tex]
The flow rate is 200 gallons per hour.
If we know that [tex]\dot V = 200\,\frac{gal}{h}[/tex], [tex]\Delta t_{1} = 10\,h[/tex] and [tex]\Delta t_{2} = 9.5\,h[/tex], then the volume of the rock is:
[tex]V_{r} = \left(200\,\frac{gal}{h}\right)\cdot (10\,h-9.5\,h)[/tex]
[tex]V_{r} = 100\,gal[/tex]
[tex]V_{r} = 13.368\,ft^{3}[/tex]
The volume of the rock is 13.368 cubic feet.
break one whole and 1/4
Answer:what? please explain what i have to answer
Step-by-step explanation:
Answer:
Can you break that down some more?
Step-by-step explanation:
The roller coaster has a mass of 600 kg and has a potential energy of 46,000J. What is the height of the roller coaster car?
Answer:
The height of the roller coaster car is: h = 7.8 m
Step-by-step explanation:
Given
Mass m = 600 kg
Potential Energy P.E = 46,000J
To determine
Height h = ?
Using the formula
P.E = mgh
Here:
m is the massg is the gravitational acceleration (9.8 m/s²)h is the heightso substituting m = 600 kg, P.E = 46,000J, and g = 9.8
P.E = mgh
46000 = 600 × 9.8 × h
h = 46000 / 5880
h = 7.8 m
Therefore, the height of the roller coaster car is: h = 7.8 m
please help i will add u to brainliest:)
Factor 144x2+312x+169,
Answer:
Number 6 is b
Step-by-step explanation:
2 Find the distance between each pair of points. Round your answer to the nearest tenth, if
Ay
necessary.
F 3.9
G 2.2
H 7.2
J
10.6
3 Find the other endpoint of the line segment with the given endpoint and midpoint.
Answer:
distance between (F,G) and (H,J) = 9.02
distance between (F,H) and (G,J) = 3.8
distance between (F,J) and (G,H) = 3.8
Step-by-step explanation:
Distance between (F,G) and (H,J)
d=√(7.2−3.9)2+(10.6−2.2)2
d=√(3.3)2+(8.4)2
d=√10.89+70.56
d=√81.45
d=9.024965
Distance between (F,H) and (H,J)
d=√(2.2−3.9)2+(10.6−7.2)2
d=√(−1.7)2+(3.4)2
d=√2.89+11.56
d=√14.45
d=3.801316
Distance between (F,J) and (G,H)
d=√(2.2−3.9)2+(7.2−10.6)2
d=√(−1.7)2+(−3.4)2
d=√2.89+11.56
d=√14.45
d=3.801316
Hope this helps a lot!!
how long would it take a snail to crawl 65 inches
Answer:
69 seconds
Step-by-step explanation:
2x - m x= 4 m= 2 can you help me because I wanna know what the answer
Answer:
6
Step-by-step explanation:
2x-m
When you substitue in the values for x and m:
2(4)-2
Now you can solve the equation:
2(4)-2
8-2
6
So this leads to the answer
2x-m=6 or 2(4)-2=6
What is the sum of
1
2
+
1
4
? Use the fraction strip to HELP?
A.
2
8
B.
2
6
C.
4
8
D.
6
8
Answer:
B. 26 should be pretty simple math
6x - 2y = 10
x - 2y = -5
Answer:
(3,4)
I'm assuming this is how u wanted it to be solved if not give me more info on the problem and I'll redo it
Step-by-step explanation:
x= 3,y = 4
Examine the picture below. What is your answer?
Provide an explanation for how you determined your answer.
Answer:
4 horses
Step-by-step explanation:
There are 2 elephants and 4 horses on one side. On the other, there are 12 horses. You can cancel 4 horses so now it's 2 elephants and 8 horses. To get the first side (2 elephants) to turn into one elephant, you need to divide by 2. So now, it is 1 elephant = 4 horses.
Answer:
4
Step-by-step explanation:
4 because you can write the problem as 2e+4h=12h then you subtract 4h from both sides and get 2e=8h then you divide by 2 to get e=4 so one elephant is as strong as 4 horses
h=horses
e=elephant
Last year there were 120 campers at camp sleep-a-way. This year they will expect 150.By what percentage did the campers increase?
Answer:
[tex]\%Increase = 25\%[/tex]
Step-by-step explanation:
Given
[tex]Last\ Year = 120[/tex]
[tex]This\ Year = 150[/tex]
Required
Determine the percentage increase
This is calculated as thus:
[tex]\%Increase = \frac{This\ Year - Last\ Year}{Last\ Year} * 100\%[/tex]
[tex]\%Increase = \frac{150 - 120}{120} * 100\%[/tex]
[tex]\%Increase = \frac{30}{120} * 100\%[/tex]
[tex]\%Increase = 0.25 * 100\%[/tex]
[tex]\%Increase = 25\%[/tex]
A bakery has three types of pie: apple, cherry, and peach. There are four times as many apple pies as peach pies. What is a possible percentage for each type of pie? Please help this is due tonight.
Answer:
Step-by-step explanation:
Let us represent:
Apple pie = a
Cherry pie = c
Peach pie = p
A bakery has three types of pie: apple, cherry, and peach.
There are four times as many apple pies as peach pies.
a = 4p
Answer Apple 40% Cherry 50% Peach 10%
Step-by-step explanation: 4x10=40
5x10=50
1x10=10
Therefore The answer Would be Apple 40% Cherry 50% Peach 10%
I need help with this one?
Answer:
The value of x = 5
Step-by-step explanation:
Given
ABCDE ~ FGHJK
It means the polygon is similar.
Similar polygons have the same shape but different sizes.
Thus, the given two polygons will have their corresponding sides are in proportion.
so
AB/AE = FG/FK
here
AB = 4, AE = x, FG = 8, FK = 10
so substituting AB = 4, AE = x, FG = 8, FK = 10
4/x = 8/10
8 × x = 4 × 10
8x = 40
divide both sides by 8
8x/8 = 40/8
x = 5
Therefore, the value of x = 5
11. An employee at the recreation center earns $84.00 for working 7 hours. At
this hourly rate, what should the employee earn for 40-hour work week?
A. $12.00
B. $ 480.00
C. $ 280.00
D. $ 21.00
PLEASE ANSWER
Answer:
B. $480.00
Step-by-step explanation:
Find the hourly rate by dividing 84 by 7:
84/7
= 12
Find how much they will make in the 40 hour week by multiplying 40 by 12:
40(12)
= 480
So, the correct answer is B, $480.00
PLSS HELP
Which function is equivalent to h(x) = 9x2−24x +16?
(A) h(x) = (3x + 4)2
(B) h(x) = (9x + 4) (x + 4)
(C) h(x) = (3x − 4)2
Last month you spent $40 on clothing. This month you spent 110% of what you spent last month.
Set up a proportion to model this situation. How much did you spend this month?
Answer:
the answer is 44
It takes Evan 6 3/4 hours to mow 3 lawns. It takes him 2 1/3 hours to mow Mr. Gal's lawn and 1 3/4 hours to mow Ms. Lee's lawn. How many hours does it take Evan to mow the third lawn?
Answer:
2 2/3
Step-by-step explanation:
turn the 1/3 and 3/4 into 4/12 and 9/12, add them and the 2 and 1 and get 4 1/12 turn the rest into fractions of 12 so 11/12 12/12 9/12 = 2 8/12 which = 2 2/3
-8 divided by -5 in fraction form
Answer:
8 / 5
Step-by-step explanation:
-8 / -5 = 8 * -1 / 5 * -1 = 8 / 5
Thank, 5 star, and brainliest if helpful
The fraction (-8)/(-5) simplifies to 8/5 which represents that the quotient is 8 units for every 5 units.
To divide -8 by -5 in fraction form, we can write it as (-8)/(-5). When dividing two negative numbers, the negative signs cancel out, resulting in a positive quotient. So (-8)/(-5) is equal to 8/5.
When we divide -8 by -5, we subtract -5 from -8 repeatedly until we can no longer subtract without going below zero.
This happens after one subtraction, resulting in a quotient of 1.
However, since both numbers are negative, the quotient is positive.
Therefore, (-8)/(-5) simplifies to 8/5.
In fraction form, 8/5 represents the result of dividing -8 by -5, indicating that the quotient is 8 units for every 5 units.
Learn more about the fraction here:
brainly.com/question/10354322
#SPJ6
There are two different maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati is 30 cm. The scale on the second map is 1 cm to 20 km.
Answer:
im confused what u want me to answer, there is no question
Step-by-step explanation:
planes X and Y are perpendicular. Points A,E,F and G are points only in plane X. Points R and S are points in both planes X and Y. Lines EA and FG are parallel.
Based on this information, which pair of lines, together, could be perpendicular to RS? Select two options.
EA
ER
EF
FG
FS
Answer:
FG
Step-by-step explanation:
I did this on my computer
The pair of the line together, could be perpendicular to RS should be considered as the EA and FG.
What is perpendicular?In terms of elementary geometry, two geometric objects should be considered as the perpendicular when they intersect at a right angle. A line is treated to be perpendicular to another line in the case when the two lines intersect at a right angle.
Therefore, The pair of the line together, could be perpendicular to RS should be considered as the EA and FG.
Learn more about pair here: https://brainly.com/question/4845674
Which equation could be true ?
Answer:
first one
Step-by-step explanation:
A shirt for $40, jeans for $50 and a watch for $35 are purchased at the mall. If 7% sales tax is charged, what will the total cost of these items be, including tax?
Explain how you got the answer as well
A.$212.50
B.$133.75
C.$116.25
D.$8.75
Answer:
A
Step-by-step explanation:
Take 7 % turn into decial then dived
Answer:
B. 133.75
Step-by-step explanation:
Add up the total for the shirt jeans and watch. Then multiply it by 0.07 then add that to your original total of the items to get your answer.
which equation has n=18 as a solution
A. 14+n=29
B. 6n=3
C. 25=n-7
D n/2=9
Answer:
D n/2 = 9
Step-by-step explanation:
14 + (18) = 32 not 29
6(18)= 108 NOT 3
18 - 7 = 11 NOT 25
The only answer is D because 18 divided by 2 = 9
Luis knows that he can hike at an average rate of 13 mile in 6 minutes. How many hours will it take Luis to reach Wandering Twin Lake?
Answer:
2 hours
Step-by-step explanation:
Brenda is deciding between two landscaping companies for her place of business. Company A charges $25 per hour and a $300 equipment fee. Company B charges $50 per hour and a $150 equipment fee. Let AA represent the amount Company A would charge for tt hours of landscaping, and let BB represent the amount Company B would charge for tt hours of landscaping. Write an equation for each situation. Determine the interval of hours, t,t, for which Company A is cheaper than Company B.
Answer:
1/6 hours
Step-by-step explanation:
Given data
Company A charges
$25 per hour and a $300 equipment fee
let the number of hours be t
and the total charges be A
A=25+300t----------------1
Company B charges $50 per hour and a $150 equipment fee.
let the number of hours be t
and the total charges be B
y=50+150t----------------2
Equate 1 and 2 we have
25+300t= 50+150t
300t-150t= 50-25
150t= 25
divide both sides by 150
t= 25/150
t=1/6 hours
