A submarine dives 20 meters each minute for 15 minutes. What is the total change in depth after 15 minutes?
Answers
Answer:
300m
Step-by-step explanation:
20 Times 15=300
Related Questions
Select the correct choice that completes the sentence below.
The expression
f(x+h)-f(x)
h
is called the
of f.
Answers
Answer:
difference quotient
Step-by-step explanation:
75 miles in 3 hours ; 140 miles in 4 hours
Answers
Answer:
no
Step-by-step explanation:
75:3=25:1
140:4=45:1
A park is io mile long and mile wide.91045What is the area of the park?E square miles
Answers
The park is rectangular in shape. To find the area of the park, we would apply the formula for finding the area of a rectangle which is expressed as
Area = length x width
From the diagram,
length = 9/10
width = 4/5
Area = 9/10 x 4/5
Area = 18/25 square miles
Is there a series of rigid transformations that would map rst to XYZ?; Which transformations can be used to map rst onto VWX?; Which best explains whether or not triangles RST and ABC are congruent?
Answers
When ΔRST can be reflected across the line RT and then rotated about T we get that S is mapped to Y. Hence, option C is the proper answer to this question.
A rigid transformation is a transformation of the plane while preserving the physical properties of a given figure or shape but it might be subjected to change in its orientation. This means the length, angles, and size of any given figure are preserved. Similarly, in the reflection property, the size and the shape of the object remain the same but its orientation gets changed.
Now, for this question,
ΔRST is mapped with ΔXYZ
implying ∠R maps to ∠X
∠S maps to ∠Y
∠T maps to ∠Z
Now, if we reflect ΔRST across the line RT and then rotate it about T, we will get
∠R is mapped to ∠Z
∠S is mapped to ∠Y
∠T is mapped to ∠X
Hence, the best option is - yes, ΔRST can be reflected across the line containing RT and then rotated about T so that S is mapped to Y.
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The complete question is -
Is there a series of rigid transformations that could map ΔRST to ΔXYT? If so, which transformations could be used?
A. No, ΔRST, and ΔXYT are congruent but ΔRST cannot be mapped to ΔXYT using a series of rigid transformations.
B. No, ΔRST and ΔXYT are not congruent.
C. Yes, ΔRST can be reflected across the line containing RT and then rotated about T so that S is mapped to Y.
D. Yes, ΔRST can be translated so that S is mapped to Y and then rotated about S so that R is mapped to X.
Find the value of x
A. 25°
B. 85°
C. 75°
D. 105°
Answers
Answer:
C
Step-by-step explanation:
I took the test and got it right
Answer:
C: 75 degrees
Step-by-step explanation:
180-155=25 which makes the angle to the other side of angle x
80+25=105
180(full angle measurement of triangle)-105=75
Btw I also had this on my quiz and got it right
Carolyn sells homemade candles. Write an expression for her total revenue if she sells x candles for $5 each
Answers
Answer:
I think it would be X x 5 = Y
Step-by-step explanation:
The required expression for total revenue is 5x.
What is amount?Amount is the multiplication of total number of quantities and total price.
Amount= number of quantity×price
Given that,
Total number of candles Carolyn sell = x,
Price of one candle = $5.
To find total revenue,
Total amount = price of one candle × total number of candles
Total amount = 5x
The required expression is 5x.
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Pleaseeee helpppp hdhdbddh
Answers
Answer:
1. 1
2. 1/3
Explanation:
1. 6(4 - 5) ÷ 2(-3)
= 6(4−5) ÷ (2)(-3)
= 6(-1) ÷ (2)(-3)
= -6 ÷ (2)(-3)
= -6 ÷ -6
final answer = 1
2. 1/4 ÷ 3/4
1/4 ÷ 3/4 ---> 1/4 ÷ 4/3 (reciprocal method)
(change the operation to multiplication)
1/4 × 4/3 (multiply)
1/4 × 4/3 = 4/12 (we aren't done yet.. we still need to simplify/reduce 4/12)
4/12 ----> 2/6 ----> 1/3. (final answer)
Here are two adverts for cornflakes: 750g box Normal price £1.98 Buy one box, get 2nd box half price 500g box Normal price £1.75 Buy one box, get one free Which is the cheapest way to buy 1500g of cornflakes, A: two 750g boxes B: three 500g boxes? b) How much does it cost to buy 1500g of cornflakes, if you use the cheapest way?
Answers
Need 1500 g of cornflakes
Option one, 750 g × 2The cost
£1.98 + £(1.98/2) = £2.97Option two, 500 g × 3The cost
£1.75 + 0 + £1.75 = £3.50Option one is cheaper as £2.97 < £3.50
Answer:
a) A: two 750g boxes.
b) £2.97
Step-by-step explanation:
750g box:
Normal price = £1.98Offer: Buy one box, get 2nd box half price.500g box:
Normal price = £1.75Offer: Buy one box, get one free.Part a)Cost of two 750g boxes:
\(\implies 1.98+\dfrac{1.98}{2}=1.98+0.99=2.97\)
Cost of three 500g boxes:
\(\implies 1.75+1.75+0=3.50\)
As 2.97 < 3.50, it is cheaper to buy two 750g boxes.
Part b)It costs £2.97 to buy 1500g of cornflakes using the cheapest way.
Define the term volume
Answers
Answer:
Volume: The space which fills up a certain object on the inside.
Graphs of a function and its inverse are shown on the same coordinate grid.
Which statements accurately compare the function and its inverse? Check all that apply.
The domains of the two functions extend to positive infinity.
The ranges of the two functions are all real numbers.
The x-intercept of f(x) and the y-intercept of f–1(x) are reciprocals of each other.
The point of intersection of the two functions indicates that the functions are inverses.
Neither function has a minimum.
Answers
The correct statements are;
The x-intercept of f(x) and the y-intercept of f–1(x) are reciprocals of each other.
The point of intersection of the two functions indicates that the functions are inverses.
Option C and D
How to determine the correct statementsTo accurately compare a function and its inverse based on the graphs, we have to know the following;
The domains of the two functions extend to positive infinity if the domain of the inverse function is equivalent to the range of the original function.The ranges of the two functions are all real numbers if the graphs cover the entire y-axis without any gaps or discontinuities.If the graphs intersect at the point (a, b), it means that f(a) = b and f^(-1)(b) = a, indicating that the functions are inverses of each other.
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What is 0.007 divided by 0.498 to nearest tenth
Answers
Answer:
0.0
Step-by-step explanation:
To find 0.007 divided by 0.498, we can perform the following calculation:
0.007 / 0.498 ≈ 0.0141
Rounding this to the nearest tenth gives:
0.0141 ≈ 0.0
Therefore, the result, rounded to the nearest tenth, is 0.0.
What can I do to understand the problem, because I don’t get it.
Answers
None of the values given in this problem make the equation 2(3 - p) = 4p + 10 true.
How to make the equation true?To obtain the value that makes the equation true, we must solve the equation.
The equation for this problem is defined as follows:
2(3 - p) = 4p + 10.
Applying the distributive property on the left side of the equality, we have that:
6 - 2p = 4p + 10
Isolating the variable p, the result is given as follows:
-2p - 4p = 10 - 6
-6p = 4
6p = -4
p = -4/6
p = -2/3.
Which isn’t any of the presented options in the context of this problem.
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Kiaan wants to pay for dinner at a restaurant. He has $30.00 in his wallet, and the meal costs $23.86. He wants to leave a 15% tip. Does he have enough? If so, how much will he have leftover? If not, how much more does he need? PLS EXPLAIN.
Answers
Answer:
2.56
Step-by-step explanation:
100%->23.86
15%-> 3.579
3.579+23.86=27.439(how much he needs to pay including tip)
30-27.439=2.561
≈2.56 (since we dont usually pay up to 3 d.p.)
Which of the following numbers can be expressed as repeating decimals 4/7, 2/5, 7/8, 4/9. I will mark brainliest
Answers
Answer:
4/9
Step-by-step explanation:
Put it in a calculator and you get .4 but there's a lot of 4's. That's the repeating decimal.
Answer:4/9 and 4/7
Step-by-step explanation: Trust
The historical returns on a balanced portfolio have had an average return of 5% and a standard deviation of 14%, Assume that returns on this portfolio follow a normal distribution. (You may find it useful to reference the z table.) a. What percentage of returns were greater than 33%? (Round your final answer to 2 decimal places.) Percentage of returns = %
b. What percentage of returns were below -37%? (Round your final answer to 2 decimal places.) Percentage of returns %
Answers
The percentages of returns are given as follows:
a. Greater than 33%: 2.28%.
b. Below -37%: 0.13%.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a variable that has mean symbolized by \(\mu\) and standard deviation symbolized by \(\sigma\) is obtained by the rule presented as follows:
\(Z = \frac{X - \mu}{\sigma}\)
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the obtained z-score is positive or negative.Using the z-score table, the p-value associated with the calculated z-score is found, and it represents the percentile of the measure X in the distribution.The parameters for this problem are given as follows:
\(\mu = 5, \sigma = 14\)
The proportion above 33% is the one subtracted by the p-value of Z when X = 33, hence:
Z = (33 - 5)/14
Z = 2.
Z = 2 has a p-value of 0.9772.
1 - 0.9772 = 0.0228 = 2.28%.
The proportion below -37% is the p-value of Z when X = -37, hence:
Z = (-37 - 5)/14
Z = -3.
Z = -3 has a p-value of 0.0013.
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I do not understand how to do this?
Answers
Answer:
-8,-7
Step-by-step explanation:
I think
Answer:
try pressing the help button, it looks like it mightve glitched
Step-by-step explanation:
27.9km to the nearest km
Answers
Answer: It rounds to 28 km
Explanation:
The units or ones digit is "7". The next digit over (9) is five or larger. This means we bump the 27 up to 28. Everything after the 7 is ignored.
So we could have something like 27.999871212512 and we still follow the same idea of focusing on the 27, bumping it up to 28, and everything else gets ignored.
The reason for this is because 27.9 is much closer to 28 than it is to 27. Draw out a number line to help see this. Split the region from 27 to 28 into 10 equal pieces. The 9th little piece represents 27 & 9/10 aka 27.9
Refer to the number line diagram below.
make e the subject
e-5=2f
Answers
Answer:
e-5=2f
take '-5' to the other side where '2f' is
e=2f+5
An Air Force C-130 Hercules cargo plane left Hill Air Force Base in Salt Lake City, UT at a height of 4,450 feet above sea level. If the plane climbs at a rate of 1,033 feet per minute, which function could be used to determine t, the time in minutes it will take the plane to reach its cruising elevation of 33,374 feet above sea level?
A.
33,374 = (4,450 + 1,033)t
B.
33,374 = 1,033(t + 4,450)
C.
33,374 = 4,450 + 1,033t
D.
33,374 = 1,033 + 4,450t
Answers
Answer: C.
33,374 = 4,450 + 1,033t
Step-by-step explanation:
33,374 is the height to be achieved
4,450 is the starting elevation
1,033 feet/min is the rate of climb.
33,374 - 4,450 = 28924 ft is the elevation to be gained
We want to know how many minutes it will take to add 28924 ft to the elevarion. We can find that by setting 28924 ft = (1,033 ft/min)*t, where t is in minutes.
So the equation 33,374 = 4,450 + 1,033t summarizes these steps in one equation:
(33,374 - 4,450) = elevation needed
(1,033 ft/min)*t = elevation delivered as a function of time, t
Set them equal to each other:
(33,374 - 4,450) = (1,033 ft/min)*t
Rearrange:
33,374 = 4,450 + 1,033t Answer C.
Suppose that A is countable set. Show that the set B is also countable if there is an onto function f from A to B
Answers
Let A and B be two countable sets. Then there exists a bijective function f from A to B.
Since f is onto, for every element b in B, there exists a unique element a in A such that f(a)=b. This implies that the number of elements in B is equal to the number of elements in A, i.e. B is also countable.
Formally, if A = {a1, a2, ..., an}, then B = {f(a1), f(a2), ..., f(an)}. Since f is onto, B has n elements, which implies that B is countable.
Let A be a countable set and let B be a set with an onto function f from A to B. Since A is countable, it can be written as an infinite sequence of distinct elements an, where n is a natural number. To show that B is also countable, we can construct a one-to-one correspondence between the elements of A and B. We can do this by assigning bi to the element ai in A, for each i. Thus, we can write B as an infinite sequence of distinct elements bn, where n is a natural number. Therefore, B is countable.
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56 x 48 =
29x31=
73 x 25 =
95 x 43 =
67 x 83 =
29 x 56 =
40 x81=
74 x 69 =
Someone needs to solve this !!
Answers
2. 899
3. 1825
4. 4085
5. 5561
6. 1624
7. 3240
Compute the following using a calculator.
csc(203∘)
Round your answer to the nearest thousandth, and only include the numerical value in your answer - do not write cscθ= in your response.
Answers
Using a calculator, the value of csc (203°) is -1.086
How to compute csc (203°) using a calculator?Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.
Since csc (203°) = 1/[sin (203°)]
Press 1/ [sin (203°)] and then the equal to button on your calculator. We have:
1/[sin (203°)] = -1.086
Note: If you calculator have "cosec" or "csc" button, you can simply press cosec (203°) or csc (203°) to get the answer.
Thus, the value of csc (203°) is -1.086
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Can you help me Find x
Answers
we know a^2 + b^2 = c^2. However, we only have c^2 and b^2. So we must find in terms of a^2, and so the formula becomes a^2 = c^2 - b^2. When we plug in the numbers, we get 144 - 16 = 128, and so we just find the square root of 128.
If x=64 &y=27 Evaluate x½-y⅓÷y-x⅔
Answers
━━━━━━━☆☆━━━━━━━
▹ Answer
-191/162
▹ Step-by-Step Explanation
Answer:
-191/162
Step-by-step explanation:
Substitute the numbers for the variables:
64 1/2 - 27 1/3 ÷ 27 - 64 2/3
Convert the mixed numbers to improper fractions:
129/2 - 82/3 * 1/27 - 194/3
Multiply the improper fractions:
129/2 - 82/81 - 194/3
= -191/162
Hope this helps!
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━━━━━━━☆☆━━━━━━━
if f(x) = x–5 and 1/2f(a)=3,then a =...........
Answers
Find the m/1
3°
(9x - 5)
1
(4x + 10)°
Answers
Answer:
∠ 1 = 158°
Step-by-step explanation:
(9x - 5) and (4x + 10) are vertically opposite angles and are congruent, so
9x - 5 = 4x + 10 ( subtract 4x from both sides )
5x - 5 = 10 ( add 5 to both sides )
5x = 15 ( divide both sides by 5 )
x = 3
then
4x + 10 = 4(3) + 10 = 12 + 10 = 22°
∠ 1 and (4x + 10) are a linear pair and sum to 180° , that is
∠ 1 + 22° = 180° ( subtract 22° from both sides )
∠ 1 = 158°
a cell phone company charges $35 per month for an unlimited data plan and charges a one time $100 activation fee. your parents will only spend a maximum of $485 on a phone for you. write and solve an inequality that represents the total months (m) your parents will pay for the phone
Answers
Answer:
Step-by-step explanation:
set the months as X
base on the question information, we have
35X + 100 ≤ 485
then we can have
35x ≤ 485 -100
35x≤385
x≤385/35
x≤11
thus, we can say, the total month is 11 months the parents will pay for the phone
The House of Pizza advertises the following prices for small and large cheese pizzas: Small circular pizza with an 11-inch diameter is $8.65 and $.95 per extra topping. Large circular pizza with a 15-inch diameter is $11.75 and $1.50 per extra topping. (a) About how many times more pizza do you get when you order the large size instead of the small size?
Answers
Answer:
1.86 times as much pizza
Step-by-step explanation:
The ratio of pizza areas is the square of the ratio of pizza diameters, so is ...
(15/11)² = 225/121 ≈ 1.86
You get about 1.86 times as much pizza when you order the large size.
∠A and ∠B are complemntry angles. If m∠A = (3x+18) and m∠B = (2x+17) then find the measure of ∠A
Answers
Work Shown:
Complementary angles add to 90 degrees.
A+B = 90
(3x+18)+(2x+17) = 90
5x+35 = 90
5x = 90-35
5x = 55
x = 55/5
x = 11
Then we can determine each angle:
angle A = 3x+18 = 3*11+18 = 33+18 = 51 degrees is the final answerangle B = 2x+17 = 2*11+17 = 22+17 = 39 degreesAs a check: A+B = 51+39 = 90 to confirm the answer.
if a tree is 105 metres tall in real life what would be the height of the diagram of the tree if the scale was 1: 1000
Answers
Answer:
1.05
Step-by-step explanation:
it is 105 divided by 1000
Answer:
0.105 metres
Step-by-step explanation:
105 divided by 1000