Answer:
$78.84
Step-by-step explanation:
$26.28 multiplied by 3 is $78.84
Helpp! Multiply :-19x(x+11)
Answer:
-19x (x+11) = -19[tex]x^{2}[/tex] - 209
The parent function of a quadratic equation is vertically
stretched by a factor of 2, then translated 5 units to the
right and 1 unit down. Write the equation of the new
function.
Answer:
2-15-21
Step-by-step explanation:
that
Watching a Helicopter Take Off At a distance of 58 ft from the pad, a man observes a helicopter taking off from a heliport. If the helicopter lifts off vertically and is rising at a speed of 55 ft/sec when it is at an altitude of 113 ft, how fast is the distance between the helicopter and the man changing at that instant? (Round your answer to one decimal place.)
The Pythagora´s Theorem, tell us that in a right triangle, the square of the hypothenuse (L²) is equal to :
L² = x² + y²
x and y are the legs.
The solution is
dy/dt = 48.9 ft/s
We know that in a right triangle:
L² = x² + y² (1)
If the helicopter lifts off vertically, that means x ( the horizontal distance between the observing man and the helicopter, maintains constant).
According to that, if we get derivatives with respect to time on both sides of equation (1) we get:
2×L× dL/dt = 0 + 2×y×dy/dt (2)
And
L = √ ( 58)² + ( 113)² = √12769 + 3364 = 127.02 ft
L = 127.02 ft when y = 113 ft
Now in equation (2) we know:
y = 113 ft dy/dt = 55 ft/s L = 127.02 we look for dL/dt
Then by substitution
2×127.02 × dL/dt = 2×113×55
254.04× dL/dt = 12430
dL/dt = 48.92
dL/dt = 48.9 ft/s
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3x - 2y = 8
2x + 2y = -8
Answer:
(0, - 4 )
Step-by-step explanation:
3x - 2y = 8 → (1)
2x + 2y = - 8 → (2)
Adding (1) and (2) term by term will eliminate the y- term
5x + 0 = 0
5x = 0 , then
x = 0
Substitute x = 0 into either of the 2 equations and solve for y
Substituting into (2)
2(0) + 2y = - 8
0 + 2y = - 8
2y = - 8 ( divide both sides by 2 )
y = - 4
solution is (0, - 4 )
Airfare from Atlanta, GA to Nashville,TN was decreased from $250 to $180. By what percentage did the cost of the airfare change?
Answer:A decrease of 28%
Step-by-step explanation: the question says decreased so you can mark out A and B then 250-180 is 70, 70% of 250 is 28%
The percentage is the indicating hundredth thus the percentage change from $250 to $180 is 28%.
What is the percentage?
The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
As per the given question,
Initial price of Airfare = $250
Final price of Airfare = $180
The percentage = change/initial × 100
Percentage decrease = (250 - 180)/250 × 100
⇒ 0.28 × 100 = 28%
Hence "The percentage is the indicating hundredth thus the percentage change from $250 to $180 is 28%".
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What a 3 digit number that is divisible by both 3 and 4
Mr. Webster is buying carpet for an exercise room in his basement. The room will have an area of 230 square feet. The width of the room with have 12&1/2 feet. What is the length?
PLEASE DO NOT JUST GIVE THE ANSWER, (I could have done that myself) PLEASE SHOW WORK ON HOW YOU GOT THE ANSWER.
Thanks!
Answer: 18.4 ft
Step-by-step explanation:
Area= L x W
230= 12.5 x L (Divide both sides by 12.5 to get L)
L= 18.4 ft
Answer:
The length of the room is 18 2/5 feet.
Step-by-step explanation:
The formula for finding the area of rectangles is A = l · w
Since the area and width is given to you, we can substitute that in the formula:
230 = l · 12 1/2
Now we convert the 12 1/2 to an improper fraction so it is easier to solve.
Here's how you convert a mixed number to an improper fraction:
12 · 2 = 24
24 + 1 = 25
and put 25 over the original denominator
= 25/2
Now you can add that to the equation...
l · 25/2 = 230 (I put 230 on the right side because that is how I am used to solving equations, but you can leave it on the right side as well. It is up to you)
To get rid of fractions, multiply by the reciprocal (Basically you flip the fraction so that the numerator becomes the denominator and the denominator becomes the numerator) on both sides
25/2 · 2/25 cancels itself out
and
230/1 · 2/25...
230 · 2 = 460
1 · 25 = 25
So you would get 460/25
Thus, we end up with:
l = 460/25
Divide 460 by 25 and you get 18.4...
Technically 18.4 is the answer but in decimal form.
If you want it in fraction form, just take 0.4 and put it over 10 because 0.4 is in the tenths place. 4/10 simplifies down to 2/5...
Therefore, the answer is 18 2/5 feet.
I hope this is helpful! Let me know if you have any further questions :D
What is this expression in simplest form?
x²+x-2/x³-x²+2x-2
Answer:
Simplified to lowest possible would be [tex]\frac{x +2}{x^{2} + 2}[/tex]
Step-by-step explanation:
HELP PLS FOR 100 POINTS PLS
Answer:
eef the points thanks man
thanks
Step-by-step explanation:
Answer:
Answer:
eef the points thanks man
thanks
Step-by-step explanation:
Step-by-step explanation:
4x=8 99999999999999999999999999999999999999999
Answer:
x=2
Step-by-step explanation:
Answer:
X =2
Step-by-step explanation:
4X=8
X=8/4
X=2
1.) Identify the triangle congruence postulate or theorem (SSS, SAS, ASA, AAS, or HL) that proves the
triangles are congruent. If the triangles are not congruent, state not congruent.
HINT: label the corresponding congruent parts in just one of the triangles.
(6 total points: 1 point for each correct congruence postulate)
PLEASE NEED HELP ASAP!!
Two triangles are congruent if they meet they both meet the rules for congruency
The rules that makes the given triangles congruency are;
a) SSS
(b) SAS
(c) ASA
(d) Not congruent
(e) AAS
(f) HL
Reasons:
(a) Segment QS ≅ Segment QR; Same number of tic marks indicating congruency
Segment SP ≅ Segment PR; Same number of tic marks indicating congruency
Segment QP ≅ Segment QP; Reflexive property
Therefore;
ΔPQS ≅ ΔPQR by Side-Side-Side, SSS, rule of congruency(b) Segments AC, BC, on ΔABC ≅ Segments CD, CE, on ΔCDE Given
m∠DCE ≅ m∠ACB; Vertically opposite angles postulate
Therefore;
ΔABC ≅ ΔDEC by Side-Angle-Side SAS, rule of congruency(c) Segment ST ≅ Segment TU; Given
m∠RST = m∠VUT = 90°; Given
∠VTU = ∠RTS; By vertical angle theorem
Therefore;
ΔRTS ≅ ΔUTV by Angle-Side-Angle, ASA, rule of congruency(d) Not congruent because given parameter Side Side Angle not a condition for congruency
Not congruent
(e) ∠GHJ ≅ ∠GFJ; Given
∠HJG ≅ ∠JGF; Given
Segment GJ ≅ Segment GJ; By reflexive property
Therefore;
ΔGFJ ≅ ΔGJH; By Angle-Angle-Side, AAS similarity rule(f) Hypotenuse AB ≅ Hypotenuse DE; Given
Leg AC ≅ Leg DF; Given
Therefore;
ΔABC ≅ ΔDFE; by Hypotenuse Leg, HL, rule of congruencyLearn more here:
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A picnic table requires 5 boards that are 6 feet long, 4 boards that are 3'3" long, and 2 boards that are 18 inches long. Find the total length of lumber required, using feet as your final unit.
Answer:
22
Step-by-step explanation:
5 boards = 6 feet
4 boards = 13 feet
2 boards=3 feet
and when you add them its 22.
5x + 1 = 3x + 7
use the model to solve for X.
Answer:
X=3
Step-by-step explanation:
First you subtract 3x from both sides to keep x on one side.
5x minus 3x is 2x.
Then you subtract 1 from both sides to keep the variable alone.
7 minus 1 is 6.
Then you divided both sides by 2.
2x divided by 2 is x and 6 divided by 2 is three.
Then all you have left is x=3
I HOPE IT WILL HELP YOU.
Thank you.
Please help me!!! Will give brainliest!
3x° + 36° = 156° (since alternate interior angles are equal)
3x° = 120 °
x = 40
Multiply. 893 × 578 = 516,145 561,154 516,154 516,144
Answer:
516,154 here you goooooooooooi
Answer:
c) 516154
Step-by-step explanation:
Q) 893 × 578 = ?
→ 893 × 578
→ 516154 is the answer.
What is 63.7465 rounded to the nearest hundredth im in 1 grade btw
Answer:
63.75
Step-by-step explanation:
Hundredth is the second digit after the decimal so use the third digit to round the second.
If the digit you are using to round is [tex]\leq[/tex]4 then round down.
If the digit you are using to round is [tex]\geq[/tex]5 then round up.
What is 278 minus 149
Answer:
129
Step-by-step explanation:
278 - 149 = 129
Answer:
the answer is 129
Step-by-step explanation:
278-149=129
6. Write the if-then form, the converse, the inverse, and the contrapositive of the statement “An angle whose measure is 34° is an acute angle."
Answer:
4
Step-by-step explanation:
4
A line passes through the points (0, –5) and (8, –10). What is its equation in slope-intercept form?
Answer:
y=-[tex]\frac{5}{8}[/tex]x-5
Step-by-step explanation:
Start with the slope equation [tex]\frac{y_{2}-y_{1} }{x_{2} -x_{1} }[/tex].
[tex]\frac{-10-(-5)}{8-0}=\frac{-5}{8}[/tex]
This is the slope of your equation
Now rearrange the slope-intercept equation to get your y-intercept
y=mx+b
y-mx=b
Now substitute either of your two points to find your y-intercept
-10-(-[tex]\frac{5}{8}[/tex](8))=b
-10-(-5)=b
-10+5=b
b=-5
Now that you have slope and the y-intercept you can write your equation:
y=-[tex]\frac{5}{8}[/tex]x-5
Emilio compra 3,6 kg de manzanas a 1,45 euros el kilo ¿Cuánto pagara por las manzanas?
Answer:
Emilio compra kg De manzanas a euros el kilo cuanto pagara por Las manzanas
Answer:
emilio compra de manzanas a euros el kilo cuanta pagara por las manzanas
A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool.
Each minute, the faucet allows 10 3/4 gallons of water to enter the pool, and the drain allows 12 1/3 gallons to leave the pool.
What is the change in the amount of water in the pool after 112 minutes?
Enter your answer as a simplified mixed number by filling in the boxes.
The change in the amount of water in the pool is the difference between the amount of water that enters and leaves the pool
Change in volume of water in the pool after 112 minutes is [tex]\underline{-117\frac{1}{3}}[/tex] gallons
Reason:
The given parameters are;
The volume volume of entering the pool = 10 3/4 gallons per minute
The volume of water leaving the pool = 12 1/3 gallons per minute
Required:
The change in the amount of water in the pool after 112 minute
Solution:
The volume of water, V₁, that enters the pool in 112 minute is given as follows;
V₁ = 10 3/4 × 112 = 1,204The volume of water, that enters the pool, V₁ = 1,204 gallons
The volume of water, V₂, that leaves the pool in 112 minute is given as follows;
V₂ = 12 1/3 × 112 = 1,381[tex].\overline 3[/tex]The volume of water, that that leaves the pool, V₂ = 1,381[tex].\overline 3[/tex] gallons
The change in the amount of water in the pool after 112 minutes, ΔV, is given as follows;
ΔV = V₁ - V₂
ΔV = 1,204 - 1,381[tex].\overline 3[/tex] = -177[tex].\overline 3[/tex] = -(117 1/3)Change in volume of water in the pool after 112 minutes, ΔV = [tex]\underline{-117\frac{1}{3}}[/tex] gallons
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This is the only question I cant answer somebody help me please and thank you
Answer:
d.
Step-by-step explanation:
answer po plss plss plss
Answer:
additive identity property (a)
Step-by-step explanation:
what is 4-1/4 help please
Answer:
It lets me add one now! The answer is 3.75
Step-by-step explanation:
1/4 of a unit is 25%
When converted to a decimal, 25% = .25
4 - .25 = 3.75
We can check this by using reversive property:
4 - .25 = 3.75
3.75 + .25 = 4
You ask your best friend to lend you $300 to buy your favourite toy. She says she can lend you the money only if you give her an extra $3 for every three months that pass before you return it. What is the total amount you must pay her if you return it after nine months?
The answer is $309
Since its $3 extra per 3 months and 9 months pass it has to be an extra $9 for the $9 months.You already had to pay back the 300 so the equation would be (300+9=309)
Simplify the expression:
V - 5v - 5v + 9v
Answer:
0Step-by-step explanation:
[tex]v - 5v - 5v + 9v \\ - 4v - 5v + 9v \\ - 9v + 9v \\ 0[/tex]
what is 1 + 1 guys i need help
I know this is a joke but agh at least I get some points ANSWER: 11
WILL MARK BRAINLIEST
Translate into expression
The product of six and a number added to three
Answer:
6x+3
Step-by-step explanation:
If you like my answer than please mark me brainliest
How would you write 0.1 bar as a fraction
Answer:
1/10
Step-by-step explanation:
Divide 1 by 0.1, which equals 10
10 becomes your denominator, and 1 is the numerator
Since 1/10 = 0.1*10 = 1
Lexi2984 can u help me with this question
9514 1404 393
Answer:
see the attachment
Step-by-step explanation:
The x- and y-intercepts are easily found:
X-intercept
Set y = 0 and divide by the coefficient of x.
-x +0 = 8
x = -8
__
Y-intercept
Set x = 0 and divide by the coefficient of y.
0 -2y = 8
y = -4
__
Now, we have two points on the graph: (-8, 0) and (0, -4). A third point can be one that is halfway between these: (-4, -2). The graph is attached.