Answer:
Step-by-step explanation:
4a. yes: 5 = 3(2)-1 5 = 6 - 1 5 = 5
4b. No: 1 = 3(4) + 1
1 = 12 + 1
1 ≠ 13
4c. No; 1 = 3 - 3
1 ≠ 3
4d. yes; 7 = -3(5) + 22
7 = -15 + 22
7 = 7
4e. no; -8 = -2(-4)
-8 ≠ 8
4f. no; 8 = -2 + 11
8 ≠ 9
Find the area of the blue shaded region in the figure.
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Given JAM and segment PB such that PB JM, what is the missing justification in the proof that JP/PA = MB/BA
Answer:
B. AA similarity postulate
PLSS HELPPP: A water cooler holds 18 liters of sports drink. Approximately how many gallons is this? (1 gallon = 3.785 liters
Answer:
4.75561426684
Step-by-step explanation:
Use websites that are calculators
The owner of a smart watch would like to estimate the mean number of steps they take per day. To do so, they select a random sample of 30 days from the previous year's data and record the number of steps they took on each of those days. The mean number of steps taken per day was 8,575 with a standard deviation of 2,125 steps. What is the value of the standard error of the mean?
O 70.833 O 387.970 O 394.603 O 2,125
The standard error is an estimate of the standard deviation of the sampling distribution. The value of the standard error of the mean is 387.970.
What is the standard error?It is an estimate of the standard deviation of the sampling distribution. It measures the variability of a considered sample statistic.
Suppose that we're given that:
Population standard deviation = σ
Size of the sample we're working on = n
Then, the standard error can be calculated as:
[tex]SE = \dfrac{\sigma}{\sqrt{n}}[/tex]
where SE denotes the standard error.
The standard error of the mean can be written as,
SE = σ/√n
SE = 2,125/√30
SE = 387.970
Hence, the value of the standard error of the mean is 387.970.
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PLEASE HELP!!!! IMA DESPRATE!!!!!!!!Find the second term in the sequence defined by an = −5(n2 + 1n).
The second term of the given sequence aₙ = -5(n² + 1n) when solved gives us; a₂ = -20
How to find the nth term of a sequence?We are given the formula for a sequence as;
aₙ = -5(n² + 1n)
Where n is the position of the term.
Now, for the first term, we will have;
a₁ = -5(1² + 1(1))
a₁ = -10
The second term of the sequence is;
a₂ = -5(2² + 1(2))
a₂ = -20
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Find the time that that the projectile will reach a height of 96 ft and return to the ground when v0 = 112 feet per second
The time that the projectile will reach a height of 96 ft and return to the ground will be 6 seconds.
What is kinematics?It is the study of the motion of a body without considering mass. And the reason behind them is neglected.
The projectile will reach a height of 96 ft and return to the ground when v₀ = 112 feet per second
The time it takes to reach feet and return to the ground will be
T = 2v₀ / g
Where g = 32.2 feet per square second.
Then we have
T = 2 x 112 / 32.2
T = 5.956
T ≅ 6 seconds
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Calculate the hollow conducting cylinder with an inner diameter a= 10 mm and outer diameter b= 18 mm. The height of the cylinder is 35 mm. Find the volume of cylinder.
Answer:
1960 π
Step-by-step explanation:
If R is the outer radius and r the inner radius of a hollow cylinder of height h, then volume of cylinder = π (R² - r²)h
Here R = 18/2 = 9
and r= 10/2 =5
Volume = π (9² - 5²) . 35 = π x 56 x 35 = 1960 π
If a 24-foot ladder makes a 58 degree angle with the ground, how many feet up a wall will it reach? Round your answer to the nearest tenth.
Answer: 20.4 feet
Step-by-step explanation:
(image attached for reference)
To find how high the ladder reaches on the wall, first find the relationship between the angle and the wall. The wall is opposite to the angle, so it's possible to solve this equation using sin(58). Sine equals opposite over hypotenuse so sin(58) = x/24. Multiply 24 on both sides to get an equation that can be plugged into a calculator of 24sin(58) = x.
24sin(58) = 20.35, which gets rounded up to a final answer of 20.4 feet.
I need help with my homework
Answer:
x plus y
Step-by-step explanation:
because if lawns is y and earnings are $35 per lawn, then y (lawn) plus $40 per car(x) is y plus x... Hope it helped??
Which of the following graphs is not a function ?
Answer:
I believe it should be the first one
Step-by-step explanation:
in the first one if you put a line straight it would cross it twice making it not function.
Answer:
The first one is not a function.
Step-by-step explanation:
When you perform the vertical line test on the graphs, the first graph is the only one that passes through a X value multiply times.
precal—easy one question. please help!!
6) What time will it be 17 hours and 53 minutes before 4:37 a.m.? Military time
Answer:
17:53=5:53pm
Step-by-step explanation:
Help me please attachment: one image
Answer:
120 degrees.
Step-by-step explanation:
360 * 1/3 = 120
A printer can print 1200 pages in 30 minutes. How long will it take for the printer to print 520 pages?
Lisa is on a trip of 1,579 miles. She has already traveled 220 miles. She has 3 days left in her trip. How many miles does she need to travel each day to complete the trip?
A. 673
B. 906
C. 1,359
D. 453
Answer: D. 453
Step-by-step explanation:
First, we will find out how many miles she has left.
-> We will subtract miles travled from total trip.
1,579 miles - 220 miles = 1,359 miles
Now, we will find the answer to your question.
-> If she has three days left in her trip, we will divide the rest of the miles to travel by 3.
1,359 miles / 3 days = 453 miles
The answer to your question is;
D. 453
Find x in this 45°-45°-90° triangle.
22
45
X =
Step-by-step explanation:
45 and 22 multiplied would be your answer
what is the parent function
Using translation concepts, it is found that the parent function graphed in this problem is [tex]y = \sqrt{x}[/tex].
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
In this problem, we have only one graph, which has the format of the square root of x, hence the function is:
[tex]y = \sqrt{x}[/tex]
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Which inequality represents the graph shown below?
Answer:
x>-2
since the arrow goes to the right from -2 it is definitely greater than -2. now see that the line does not include the value -2 itself.. thus, we say it is greater than -2
Answer:
x > -2
Step-by-step explanation:
Details understood from the graph :
Open dot from starting pointIncreases from -2Hence,
Open dot means > or <Greater means ⇒ >The inequality is : x > -2What is 16x^4-100y^4 factored completly
Answer:
16x^(4)-y^(4)
Step-by-step explanation:
Please help me solve this equation that has surface area in a cylinder question
Answer:
Where's the picture?
Step-by-step explanation:
Please provide a picture
Find the value of x 63° (2x + 3)°
Answer:
x = 20
Step-by-step explanation:
63−3x=3
−3x=−60
x=20
A typical MRE contains 1250 calories. If the average soldier eats 3 MREs per day and is deployed for 36 weeks, approximately how many calories will be consumed by a 40 member platoon of soldiers?
Answer:
30240
Step-by-step explanation:
3x7x36x40 I hope this helps
What is the area of the triangle Base is 6 ft height is 5 ft.
Answer:
Area of a triangle = 0.5 * base * height = 0.5 * 6 * 5 = 15 sq. ft
Answer:
Area = 0.5 * base * height
0.5 * 6 * 5 = 15
Area = 15 sq ft
What is the domain of the function graphed below?
O(-2, ∞) O(-3,4] and [7, ∞). O(-∞,4). O [-2,0] and (7, ∞)
Using it's concept, it is found that the domain of the function graphed below is given by:
[tex](-2,4][/tex] and [tex][7, \infty)[/tex].
What is the domain of a function?It is the set that contains all possible input values for the function. In a graph, it is given by the values of x.
In this problem, x assumes values greater than -2 and less or equal than 4, and then values of 7 or greater, hence the domain is given by:
[tex](-2,4][/tex] and [tex][7, \infty)[/tex].
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Need help for this please
Answer:
The area of the circle is approximately 154 square meters
Step-by-step explanation:
Area of a circle formula: [tex]A = \pi r^{2}[/tex]
given:
- diameter = 14m
- pi = 22/7
[tex]radius (r) = diameter/2 = 14/2 = 7\\A = 22/7*(7)^2\\A = 22/7*(49)\\A = 154[/tex]
URGENT! please answer. i'll give 5 stars + brainilest if correct
To estimate the height of a mountain, two students find the angle of elevation from a point (at ground level)
b
=
560
meters from the base of the mountain to the top of the mountain is
β
=
51
∘
. The students then walk
a
=
1850
meters straight back and measure the angle of elevation to now be
α
=
34
∘
. If we assume that the ground is level, use this information to estimate the height of the mountain.
The height of the mountain is
_____ meters.
Answer:
times the nimbers
Step-by-step explanation:
240
A ball is hit from the ground. When the ball has traveled a horizontal distance of d meters, its height, h, in
meters, can be modeled by the function h (d) = -
1 d + d.
What is the horizontal distance from the point where the ball is hit to the point where the ball lands on the
ground?
nour in the snaca nrovided
Answer:
125 meters
Step-by-step explanation:
The ball will hit the ground when its height is zero. Use that value for h in the equation, and solve for d.
__
h(d) = -d²/125 +d . . . . the given equation
0 = d(-d/125 +1) . . . . . use h=0, and factor out d
This equation is satisfied by values of d that make the factors zero:
d = 0 ⇒ d = 0
-d/125 +1 = 0 ⇒ d = 125
The horizontal distance to the landing point is 125 meters.
Match the trigonometric ratios with their values based on the triangle shown in the diagram.
The trigonometric ratios with their values are based on the triangle will be sin D = 4 / 5, sin C = 3 / 5, sin D x cos D = 12 / 25, tan C x tan D = 1, and cos C x tan D = 16 / 15.
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The triangle is given below.
Then the trigonometric ratios with their values are based on the triangle shown in the diagram and will be
sin D = 4 / 5
sin C = 3 / 5
sin D x cos D = 4 / 5 x 3 / 5
sin D x cos D = 12 / 25
tan C x tan D = 3 / 4 x 4 / 3
tan C x tan D = 1
cos C x tan D = 4 / 5 x 4 / 3
cos C x tan D = 16 / 15
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Find the area of each. Round your answer to the nearest tenth. 28) 2.6 cm
Answer:
Here is the answer...hope it helps
What would you have to show in order to prove that a quadrilateral is a rectangle?
A. Consecutive sides have opposite reciprocal slopes.
B. All sides are congruent.
C. Opposite sides are parallel.
D. Consecutive sides are congruent,
but opposite sides are not.
Answer:
A. Consecutive sides have opposite reciprocal slopes
Step-by-step explanation:
A rectangle is a special case of parallelogram, in which the diagonals bisect each other and are the same length, and all angles are right angles. In order to prove a quadrilateral is a rectangle, it can be shown to be a parallelogram, but one or the other of these additional characteristics must be proven.
__
A. Consecutive sides have opposite reciprocal slopes
Sides with opposite reciprocal slopes will be perpendicular. That is, the angle between them will be a right angle. If all pairs of consecutive sides meet at right angles, the figure must be a rectangle.
B. All sides are congruent
A rhombus is a quadrilateral in which all sides are congruent. It will only be a rectangle if the diagonals are the same length, or, equivalently, adjacent sides meet at right angles.
C. Opposite sides are parallel
A parallelogram will have opposite sides parallel. It will only be a rectangle if the diagonals are the same length, and/or adjacent sides meet at right angles.
D. Consecutive sides are congruent, opposite sides are not.
This seems a contradiction, as opposite sides are consecutive to the same side. (For example, sides AB and CD are both consecutive to side BC.) If we take this to mean that there are two pairs of consecutive congruent sides, then the figure may be a kite, but isn't necessarily a rectangle unless the other conditions are met.
_____
Additional comment
If sides are horizontal and vertical, the slope of the vertical sides is "undefined." It cannot be shown to be the opposite reciprocal of the slope of the horizontal sides.