The water level in a reservoir is now 52 meters. If this was a 23% increase, what was the initial depth?
Answer:
40.04
Step-by-step explanation:
It was at 40.04 before the 23% increase. To find 23 % of 52 set it up as a inequality.
x/52 = 23/100
Cross multiply
52 * 23 = 1,196 100 * x =100x
Now solve for x.
100x /100 = 1,196/100 x = 11.96
Subtract answer from 52 to get answer
52 - 11.96 = 40.04
Simplify (a^-2*b^2/a^2*b^-1)
The answer is B
Answer:
=b/a^4
Step-by-step explanation:
The point (-4, 1) is rotated 180 degrees counterclockwise using center (-3, 0). What are the coordinates of the image?
Answer: Coordinates of the image are (-2 , -1)
Step-by-step explanation:
The rule for 180° rotation counterclockwise is:
(x , y) ⇒ (-x , -y)
This means that to get the coordinates of a point rotated 180° counterclockwise, all you have to do is flip the signs of both the x and the y
Now, we are given the point (-4 , 1)
Applying the above rule:
[tex]( x image, y image) = (-(-4),-(1))[/tex]
[tex](x image, y image) =(-2, -1)[/tex]
The difference of negative thirteen and eight multiplied by the square of two.
Answer:
-100
Step-by-step explanation:
(-13-8)2^2
-25*4=-100
Maya estimates that the wait time for her favorite roller coaster is 35 minutes. The actual wait time is 55 minutes. What is the percent error of laya's estimate
Answer:
36.4%
Step-by-step explanation:
Actual wait time is 55 minutes
Approximate wait time is 35 minutes
Therefore the percent error can be calculated as follows
= 35-55/55 × 100
= 20/55 × 100
= 0.3636 × 100
= 36.4%
please help i dont understand
Lisa and Molly are on a bridge and see a tree sticking out of the water. Use the diagram to determine how far away Lisa is from the tree in the water. Use appropriate units.
Answer:
Distance between Lisa and the tree in the water = 26.5 ft
Step-by-step explanation:
From the figure attached,
Lisa is a point L, Molly is at M and a tree stick at point S.
By applying sine rule in ΔLMS,
[tex]\frac{\text{SinL}}{\text{SM}}=\frac{\text{SinM}}{LS}=\frac{\text{SinS}}{\text{LM}}[/tex]
[tex]\frac{\text{Sin(54)}}{22}=\frac{\text{Sin(103)}}{\text{LS}}[/tex]
LS = [tex]\frac{22\times \text{Sin}(103)}{\text{Sin(54)}}[/tex]
LS = 26.5 ft
Therefore, distance between Lisa and the tree in the water is 26.5 ft.
PLZZZ HELPPP!! THIS IS TIMEDDD!!!! *look at picture*
A ABC is a dilation of A JHG centered at the origin.
Find the scale factor of the dilation.
A. 3
B. 4
C. 2
D. 8
Answer: I think 4
Step-by-step explanation:
83%
The work in an office takes 150 hours to complete every week.
Each person in the office works for 32 hours a week.
a)
What is the smallest number of people needed to complete the work?
b)
The number of hours each person works is decreased to 30 hours a week.
Does the office still need the same number of people?
Answer 'yes' or 'no'.
Answer:
a) 5
b) yes
a) reason is 5x32 = 160 hour
b) reason is 5x30 = 150 hour
Seth sells candles for $14.35 each. Last week, he sold 21 candles. Seth pays $2.40 for materials for every 3 candles. How much did Seth earn last week?
Answer:
$284.55
Step-by-step explanation:
total of sold candles:$14.35 × 21 = $301.35
total for materials : 21÷3 = 7
=7×$2.40
=$16.8
net earn; $301.35-$16.8 =$284.55
Please help me please thank you sm in advance
Answer:
Your answer is 50 (or b)
Step-by-step explanation:
You can tell this because the inside angle is 25 but the cornner says 2x so you have to double it so 25+25=50...hope this helps
:P
Answer:
50
Step-by-step explanation:
There is a straight line at the bottom which is 180 degrees. On the right side the angle measure is 150 degrees so you subtract that by 180 and you get 30 degrees making it supplementary. Next you should know that there is 180 degrees in a triangle. Now you formulate the equation 30+50+2x =180. Then you solve for x and you get the solution x=50 which is your answer. Now you can substitute 50 in for x and see if all the angle measures add up to 180 degrees.
If you can please make my answer the brainliest that would be much appreciated. Thanks!
only question 3 A and B please thank you
Answer:
smell my feet nnnnnnnnnsdsdsdnnnsdsdnigdsga
Step-by-step explanation:
this is easy but my brain is not working
Answer:
Y=10
Step-by-step explanation:
Write the equation x2+24x+60=0 in the form (x+p)2=q
Answer:(x + 12) ^2 -60
Step-by-step explanation:i evaluated this and i got it
PLEASE HELP I HAVE NO CLUE WHAT TO DO
Answer:
b= \frac{1}{2ha} -c
Step-by-step explanation:
you would multiply to remove the variable from the denominator and simplify
Insert each of the following numbers between two consecutive multiple of 10
Answer:
10 (13) 15
35 (37) 40
45 (48) 50
60 (61) 65
90 (93) 95
Step-by-step explanation:
Fill in the blank by choosing the correct symbol (<, >, or = ): -6 _____ -22 *
Answer:
the answer is ">"
Answer:
>
Step-by-step explanation:
because -6 is bigger than -22
89 divided by 37 with a reminder and answer
Answer:89/37=2 remainder 15
Step-by-step explanation:
Check:
37*2=74
74+15=89
Answer:
2.40.405
Step-by-step explanation:
thats with out a reminder
HELP I GOTTA TURN THIS IN QUICK
Answer:
(0, 0), (4, 0), (4, -5)
Step-by-step explanation:
This one keeps the same lengths of the previous triangle. It also keeps the same proportions (or something) etc, etc. I solved this problem by graphing and seeing which one fit best.
Idk know how to do it can someone help me
Answer:
ANSWER
Step-by-step explanation:
In the table, look at the x values. Now, in the function ( the expression in the question) substitute the x values from the table into the function. The first column would be 4x1-1sqaured so 4 x 1 = 4 1 squared is 1 so 4 - 1 is 3. So the answer for the first box is 3.
What's one way we can check our answer to 2 x10 = 20?
A. 20 : 10 = 2
B. 2 : 10 = 20
C. 20 x 10 = 2
Answer:
A (does : mean division? If so then A is correct)
A triangle has angle of 30 degree, 60 degree, 90 degree. It is dilated by a scale of 3. Give the angle measures of the dilation of the triangle.
Please help me with this question and explain your answer too...
Answer:
No matter what scale factor is dilated, the angles will not change.
My explanation:
A 30-60-90 right triangle (literally pronounced "thirty sixty ninety") is a special type of right triangle where the three angles measure 30 degrees, 60 degrees, and 90 degrees. The triangle is significant because the sides exist in an easy-to-remember ratio: 1:√3:2.
That is to say, the hypotenuse is twice as long as the shorter leg, and the longer leg is the square root of 3 times the shorter leg. You might also remember it as "X, 2X, and X roots of 3", which is how I remember it, but then you have to remember that 2X is actually the longest side, not X roots of 3.
Which side is which? The side opposite the 30 degree angle will have the shortest length. The side opposite the 60 degree angle will be √3
times as long, and the side opposite the 90 degree angle will be twice as long. The triangle below diagrams this relationship. Remember that the longest side will be opposite the largest angle, and the shortest opposite the smallest angle.
Hopefully this helped, if not HMU and I will try to get you a better answer! :)
Solve the equation | x + 2 | = | x - 6 |. Graph the solutions if possible
a flagpole cast a shadow 25 meters long when the angle of elevation of the sun is 40 how tall is the flag pole to the nearest meter
Answer:12.59
Step-by-step explanation:
enter image source here
From the diagram you can see that we have constructed a right triangle, with height A and base 15.
Length of shadow = 15 feet.
Height of flagpole = A.
We know the angle of elevation is
40
∘
. Using this angle and the tangent ratio, we can find A.
tan
(
40
∘
)
=
opposite
adjacent
=
A
15
∴
tan
(
40
∘
)
=
A
15
Rearranging:
A
=
15
tan
(
40
∘
)
By calculator:
A
=
12.59
feet. ( 2 d.p.)
help with this slope
Answer:
20,100 I think
Step-by-step explanation:
Answer:
20/10
Step-by-step explanation:
goes up 20
goes to the right 10
find the e correctly
if u get a correct answer u will get brainliest!
Are the ratios 1:5 and 3:15 equal?
Answer:
no, 3/15 reduces to 1/3 and 1:3 isn't equal to 1:5
Answer:
yes they are because they are by three
Step-by-step explanation:
help me plssssssssssss
A water drip system in a garden uses 2/3 cups of water every 1/6 of an hour. a) How much water is used in 1 hour? b) Use your equation to caculate how much water is used after 24 hours.
Answer:
A) 4 per hour
B) 96 per day
Step-by-step explanation:
A) 2/3 times 6 is 4
B) 4 times 24 is 96
The graph shows the height (h), in feet, of a basketball t seconds after it is shot.
Projectile motion formula: h(t) = -16t^2 + vt + h0
v = initial vertical velocity of the ball in feet per second
h0 = initial height of the ball in feet
Complete the quadratic equation that models the situation.
h(t) = –16t^2 + _t + 6
Answer:
v=24 feet/sec
I hope this was helpful! :))
Answer:
24
Step-by-step explanation:
Sofia wants to buy a new pair of jeans. At Pants World, the jeans she wants cost $40 and they're having a 25% off sale. At All Clothes, the same jeans cost $38 and she has a $6 off coupon. What is the best deal?
1.Purchase at Pants World, because the cost after discount will be $15
2.Purchase at Pants World, because the cost after discount will be $30
3.Purchase at All Clothes, because the cost after coupon will be $32
4.Purchase at All Clothes, because the cost after coupon will be $34
Answer:
number 2
Step-by-step explanation:
Purchase at Pants World, because the cost after the discount will be $30. Then the correct option is B.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The cost of jeans at the Pants world is calculated as,
⇒ $40 - 25% of $40
⇒ $40 - 0.25 x $40
⇒ $40 - $10
⇒ $30
The cost of jeans at All Clothes is calculated as,
⇒ $38 - $6
⇒ $32
Purchase at Pants World, because the cost after the discount will be $30. Then the correct option is B.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ3