Answer:
The first statement: "Her first mistake was in Step 2. She added 0.2 to each term instead of multiplying by 0.2."
A pilot spots the airport at an angle of depression of 16°. The plane is flying at an altitude of 9,000 ft. What is the ground distance (distance along the ground) from the plane to the airport to the nearest foot
Answer:
[tex]31,387\:\text{ft}[/tex]
Step-by-step explanation:
We can form a right triangle using the plane, the airport, and ground and use basic trig for a right triangle to solve this problem.
In a right triangle, [tex]\tan\theta=\frac{\text{opp}}{\text{adj}}[/tex]. Therefore, we have the following equation, where [tex]x[/tex] is ground distance between the plane and the airport:
[tex]\tan 16^{\circ}=\frac{9,000}{x},\\x=\frac{9,000}{\tan 16^{\circ}},\\x\approx \boxed{31,387\:\text{ft}}[/tex].
Shiva uses 8.2 pints of blue paint and white paint to paint her bedroom walls. 3/4 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
Answer: 2.05 pints
Step-by-step explanation:
Shiva used 8.2 pints in total to paint the bedroom.
3/4 of this was blue paint which means that the remaining 1/4 is white paint.
Pints of white paint used:
= Proportion of white paint * Total pints used
= 1/4 * 8.2
= 2.05 pints
One of the legs of a right triangle measures 1 cm and its hypotenuse measures 4 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer:
3.9 cm
Step-by-step explanation:
One of the legs of a right triangle measures 1 cm and its hypotenuse measures 4 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
We can solve the above question using Pythagoras Theorem
Hypotenuse ² = Opposite ² + Adjacent ²
From the above question
Hypotenuse = 4 cm
1 leg = Opposite = 1 cm
Other leg = Adjacent = x
Hence
4² = 1 ² + x²
x² = 4² - 1²
x = √ 16 - 1
x = √15
x = 3.8729833462 cm
Approximately to the nearest tenth = 3.9 cm
The measure of the other leg is 3.9 cm
Yuto has a bag containing 3 red marbles, 5 blue marbles, 2 green marbles, and 8 yellow marbles. Rin reaches into the bag, pulls out a blue marble, and puts it in her pocket. Then Misaki reaches in and pulls out a marble. What is the total number of possible outcomes for Misaki’s marble?
Answer:
17
Step-by-step explanation:
If Rin pulls out 1 blue marble from the bag then total marbles left in the bag now= 18 − 1 = 17
Now Misaki pulls out a marble: Probability of red marble= 3/17
probability of blue marble= 4/17
Answer:17
Step-by-step explanation:
determine two pairs of polar coordinates for the point (4, -4) with
Answer:
(4√2cos 135, 4√2sin135)
Step-by-step explanation:
determine two pairs of polar coordinates for the point (4, -4) with
Given the rectangular coordintate
r = √4²+(-4)²
r = √16+16
r = √32
r = √16*2
r =4√2
Theta = arctan(-4/4)
theta = arctan(-1)
theta = -45
theta = 180 - 45
theta = 135 degrees
x = rcos theta
y = rsin theta
x = 4√2cos 135
y = 4√2sin135
what is the anwser for 4n-2n=4
Answer:
2
Step-by-step explanation:
4n-2n=4
2n=4
n=4/2
n=2
What's 0.016 as a fraction
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 2/125
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
16/1,000
Understanding place values:
The first 0 before the decimal point in 0.016 represents ones, the 0 after the decimal point represents tenths, the 1 represents hundredths and the 6 represents thousandths. We use 1,000 in our fraction because of the place value.
Step-by-step explanation:
1. Convert 0.016 into a fraction:
0.016 = 16/1,000
2. Simpilfy the fraction 16/1,000:
16/1,000 ÷ 8 = 2/125
2/125 is equivalent to 0.016
Side Note: Step 2. is only for people looking for the simplified answer!
~Hope this helps!
~Hocus Pocus
answer asap
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Answer:
a
Step-by-step explanation:
it only givin you one statement fr
Are the following two expressions equivalent?
Explain how you know...
3(4-x)
6(x+2)-7x
Answer:
no, because the first=12-x
and the second=-1x+2
Step-by-step explanation:
Answer:
No, they are not equivalent.
Step-by-step explanation:
First, we simplify the two expressions.
3(4 - x) = 12 - 3x We multiply everything inside the bracket by 3.
6(x + 2) - 7x = 6x + 12 - 7x = 12 - x Using BODMAS/BIDMAS, we first multiply everything in the brackets by 6 and then simplify.
If we compare 12 - 3x to 12 - x, we can clearly notice that they aren't equivalent. If they were to be equivalent, they would have to be exactly the same values as each other. The 12 is common in both expressions, but the -3x and -x differ, therefore the following two expressions aren't equivalent.
I hope this helps!! ^-^
Choose the graph of the system of equations.
P=10d
P=8d+40
Answer:
Step-by-step explanation:
10d = 8d + 40
2d = 40
d = 20
10(20) = P
200
(20, 200)
Option 1 is the first choice
Does anyone know about this
Answer:
11.0
Step-by-step explanation:
Using Pythagoras' identity in the lower right triangle.
let the hypotenuse be x , then
x² = 4² + 9² = 16 + 81 = 97
Within the rectangle, use Pythagoras' identity in the lower right triangle.
let y be the dotted line , then
y² = x² + 5² = 97 + 25 = 122 ( take the square root of both sides )
y = [tex]\sqrt{122}[/tex] ≈ 11.0 ( to the nearest tenth )
The dotted line is approximately 11.0 units
Hiiioo can someone please help!❤️❤️❤️:)
Write an equation of a parabola opens upwards and has vertex (7, - 6).
Any help?
Answer:
f(x) = x² - 14x + 43
Step-by-step explanation:
The equation of a parabola in vertex form is
f(x) = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k ) = (7, - 6 ) , then
f(x) = a(x - 7)² - 6
Since the parabola opens upwards then a > 0
let a = 1
f(x) = (x - 7)² - 6 ←in vertex form
f(x) = x² - 14x + 49 - 6
f(x) = x² - 14x + 43 ← in standard form
is 1 23/36 the same thing as 263/144 ? ill give brainiest :)
Answer:
no
Step-by-step explanation:
[tex]1\frac{2}{3}= 1.64\\263/144= 1.83[/tex]
what's the value of z?
Answer:
77
Step-by-step explanation:
Jesse now has $200 and his goal is to buy a bicycle that costs $375. He earns $10 for every car that he washes. Write an inequality that represents the number of cars Jesse must wash in order to afford the bicycle. Then, solve the inequality to determine the number of cars Jesse must wash in order to afford the bicycle. Show all of your work and remember to include units.
Answer:
$200 + $10x = $375
Well we're going to round up to $380, cause their making money in increments of 10 rather than 5.
And based off that I'd subtract $375 from $200 (375 -200 = 180)
Then take that answer and divide it by 10. (180 / 10)
Jesse will need to wash at least 18 more cars in order to afford the bicycle
The grades of a statistics midterm are normally distributed with a mean of 70 and a standard deviation of 2. Without using a calculator, what is the probability that a student will receive a grade between 74 and 76? 4.30% 2.15% 34.12% 13.6%
Answer:
.13.5%
Step-by-step explanation:
The probability that a student will receive a grade between 74 and 76 is calculated as follows:
µ+2σ=70+2(2)=70+4=74
µ+3σ=70+3(2)=70+6=76
From the above empirical rule it can be observed that 13.5% of observations fall in between 1 and 2 standard deviations above the mean.
Therefore, the probability that a student will receive a grade between 74 and 76 is 13.5%.
Thus, the correct options is A.13.5%.
2.15 is the answer, I did the test on it.
Is there a linear relationship between the radius and the volume of these cylinders?
Cylinder one: 28in^3 with a radius of 1 and height of 9
Cylinder two: 113in^3 with a radius of 2 and height of 9
Cylinder three: 254in^3 with a radius of 3 and height of 9
yesStep-by-step explanation:
help me please this will help my grade !
Answer:
c. [tex]\sqrt{13}[/tex]
Step-by-step explanation:
the 13 will have an ongoing decimal
Answer:
The irrational number is C
Step-by-step explanation:
C can't be written as a rational number because it cannot be written as a fraction (n/d)
A patio 2 pairs of two parallel sides and 2 pairs of sides that are the same length there are 4 square corners what shape is the patio
Answer:
The patio is a rectangle
Step-by-step explanation:
Since it is given that we have 2 pairs of two parallel sides, which implies 4 sides, this thus shows that the shape is a quadrilateral since, only quadrilaterals have 4 sides. Also, 2 pairs of sides are the same length, and are parallel, it shows that the shape is likely a rectangle.
Finally, there are 4 square corners on the shape which implies 4 right angles. This confirms that our shape is a rectangle since only a rectangle has 2 pairs of two parallel sides and 2 pairs of sides that are the same length there are 4 square corners.
So, the patio is a rectangle.
What would be the angle for M
Answer:
180-124-33=23
Linear inequality systems graphically
A television was originally sold for $485. The television is now on sale for $388. What is the percent markdown?
The snowfall for each day of a school week was: 3 inches, 1 inch, 1 inch, 7 inches, and 3 inches. Lisa said that the mean snowfall could be found by adding 3+1+7 inches, and then dividing by 5. Was she correct? Explain.
ASAP! PLEASE HELP!! ILL GIVE BRAIN LIST PLEASE!
Answer: D
Step-by-step explanation:
All you do is divide the answer by 3 for all vertices.
Answer:
B
Step-by-step explanation:
If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll an even number?
Answer:
The probability for getting a head and an even number is 0.25.
Step-by-step explanation:
S be the sample space of the event = { (H,1) ,(H,2) ,(H,3) ,(H,4) ,(H,5) ,(H,6) ,(T,1) ,(T,2) ,(T,3) ,(T,4) ,(T,5) ,(T,6) }
∴ n(S) = 12
Let A be the event getting a head and an even number when a coin is tossed and a six sided dice is rolled
what ratio below is not equivalent to the ratio 10:35
Answer:
1/2
Step-by-step explanation:
In a ratio, two quantities are compared using division. It is used to indicate how big or small a quantity is when compared to another. Here among the given options only 2:7 is equivalent to 10:35. The correct options are A, B and C.
What is a ratio?The ratio is defined as the comparison of two quantities of the same units. It indicates how much of the one quantity is present in the other quantity. The ratio are generally of two types, they are part to part ratio and part to whole ratio.
The part to part ratio denotes how distinct the entities or groups are related whereas the part to whole ratio denotes the relationship between a specific group to a whole. We use the ratio formula while comparing the relationship between two numbers or quantities.
Thus the correct option is A, B and C.
To know more about ratio, visit;
https://brainly.com/question/29192438
#SPJ3
Your question is incomplete most probably your full question was:
what ratio below is not equivalent to the ratio 10:35
A. 3:5
B. 2:4
C. 1:3
D. 2:7
T
Radius:
4
inches
Diameter:
Circumference:
Answer:
diameter 8
and i think the circumference is 25.12
Step-by-step explanation:
4+4=8
3.14(8)
Help me with this
Please no fake answers
Answer:
*inserting real answer*
The answer I think is A which is [tex]4r^{2}[/tex]
Step-by-step explanation:
Hope this helps have a nice day!
Also to let you know I tried my best ok ;-;
y+7x=5
what is the slope intercept form? y=mx+b