Your answer is 1.54737637e11
Answer:
154737637418
Step-by-step explanation:
Determine the distance between the following two points
(10,1) and (9,-4)
What is 18 plus the quotient of 36 and 9?
<2 and <3 are ____ angles
complementary
vertical
congruent
supplementary
Answer:
I think it's supplementary
Answer:
supplementary
Step-by-step explanation:
∠2 and ∠3 are supplementary angles
this means ∠2 and ∠3 are equal to 180
2. The service life of a battery used in a cardiac pacemaker is assumed to be normally distributed. A random sample of ten batteries is subjected to an accelerated life test by running them continuously at an elevated temperature until failure, and the follow ing lifetimes (in hours) are obtained: 25.5, 26.1, 26.8, 23.2, 24.2, 28.4, 25.0, 27.8, 27.3, and 25.7. a. The manufacturer wants to be certain that the mean battery life exceeds 25 h. What conclusions can be drawn from these data (use a= 0.05)? b. Construct a 90% two-sided confidence interval on mean life in the accelerated test.
Answer:
Kindly check explanation
Step-by-step explanation:
Assuming a normal distribution :
Sample (x) :25.5, 26.1, 26.8, 23.2, 24.2, 28.4, 25.0, 27.8, 27.3, 25.7
Null hypothesis : μ = 25
Alternative hypothesis : μ > 25
α = 0.05
Decision region :
Reject Null if :
t0 > t
t can be obtained from the t distribution table at : df = (n - 1) = 10 - 1 = 9 ; α = 0.05
Hence, t(0.05, 9) = 1.833
From the sample given ; t0
t0 = (m - μ) / (s /√n)
n = sample size = 10
s = sample standard deviation
m = sample mean
Using calculator :
25.5, 26.1, 26.8, 23.2, 24.2, 28.4, 25.0, 27.8, 27.3, 25.7
Sample mean(m) = 26
Sample standard deviation (s) = 1.624
t0 = (26 - 25) / (1.624 /√10) = 1.947
1.947 > 1.833
Hence, reject Null
B)
Confidence interval at 90% ; α = 0.1
m ± t(0.1/2 ; 9) * s/√n
m - t * s/√n ≤ μ ≤ m + t * s/√n
26 - 1.833 * (1.624/√10) ≤ μ ≤ 26 + 1.833 * (1.624/√10)
25.059 ≤ μ ≤ 26.941
What is a counterexample? "If a number is an integer, then it is either positive or negative."
Answer:
POSITIVE THANK ME LATER
Step-by-step explanation:
Oranges were on sale for $0.45 per pound. Leo bought 12.6 pounds. Which expression shows how to determine the total cost of the oranges?
12.6 times 0.45
12.6 minus 0.45
12.6 + 0.45
12.6 divided by 0.45
Answer:
12.6 times 0.45
price: .45
quantity: 12.6
cost = price x quantity
Answer:
12.6 x 0.45
Since you know how much Is each pound and you want to buy 12.6 pounds. all you have to do is multiply them both.
In the expression 5^2the 5 represents the
Answer:
coefficient
Step-by-step explanation:
A sports arena is in the shape of a rectangle. The arena has a length of (x − 3) feet and a width of (2x + 4) feet. Which of the following represents the area of the arena?
Answer:
2x² - 2x - 12
(x-3)(2x + 4)
expand brackets:
2x² + 4x - 6x - 12
then simplify:
2x² - 2x - 12
hope this helps
brainliest please?
x
Answer:
2x² - 2x - 12 Step-by-step explanation:
-Зу = 7x - 21
Use intercepts to graph the line described by each equation
Answer: to get the equation needed to graph the equation, divide tach term by -3 to isolate y. The slope-intercept equation becomes
y = -7x/3 + 7
Step-by-step explanation:
Use the y-intercept to plot 7 on the y axis then plot a point down 7 and 3 to the right (3,0) and draw the line through those points.
A map of Utah is shown. Which area is closest to the area of Utah? Group of answer choices 1,240 square miles 87,150 square miles 94,500 square miles 119,000 square miles
Answer:
87150
Step-by-step explanation:
84,899 is the exact square miles, but 87,150 is closest
Characterize the slope of the line in the graph.
Answer:
The answer is, C. Zero because it is neither positive or negative
Answer:
Zero Hope this helps!
2
What are the coordinates of the image?
Rx-axis (1, 6)
Answer:
over one to the right, up six
The reflection of the point (1,6) across the x-axis is (1,-6).
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
A figure's mirror image in the axis or plane of reflection is its image by reflection.
Given that the coordinate is (1,6). The reflection of the coordinates across the x-axis will be,
R(x₁ , y₁) ⇒ R(x₁,-y₁)
R(1,6) ⇒ R( 1,-6)
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use the functions to find f(-1/3)
Answer:
f(x) = 17/2 or 8.5
Step-by-step explanation:
f ( x ) = 10-9/2x
By substituting the values,
f (x) = 10 - 9/2(-1/3)
= 10-3/2 = 17/2= 8.5
Zoé compró 3 quesos de 3/5 cada uno. ¿cuántos Kilogramos de queso tiene en total?
Answer:
W = 1.8 kg
Step-by-step explanation:
Zoé bought 3 cheeses, 3/5 each. How many Kilograms of cheese does he have in total?
Weight of each cheese is 3/5 kg. Zoe bought 3 cheeses. We need to find the weight of cheese in total.
To find weight of 3 cheeses, we will multiply 3 by 3/5 such that:
[tex]W=3\times \dfrac{3}{5}\\\\W=1.8\ kg[/tex]
So, the weight of cheese in total is 1.8 kg.
what is the solution for x in the equation
-2x+14+10x=34
A. x=6
B. x=1/8
C. x=5/2
D. x=2/5
Answer:
C. x=5/2
Step-by-step explanation:
-2x+10x=34-14
(8x=20 ) /:8
x=5/2
Add or subtract.
1/7+5/6
Answer:
Hi there
Your answer is
41/42
Step-by-step explanation:
To add these, they need to have the same denominator.
1/7 * 6/6 = 6/42
5/6 * 7/7 = 35/42
6/42 + 35/42
=
41/42
Given: △ABC, m∠A=60°
m∠C=45°, AB = 9
Find: Perimeter of △ABC
Area of △ABC
Please don't use trig
Answer:
Perimeter of ΔABC =32.31 units
Area of the triangle ABC = 47.81 sq. unit
Step-by-step explanation:
In triangle ABC
[tex]\angle A = 60^{\circ}\\\angle C = 45^{\circ}[/tex]
Angle sum property of triangle : The sum of the measures of the all angles of triangle is 180°
[tex]\angle A + \angle B + \angle C = 180^{\circ}\\60 + \angle B + 45 = 180\\\angle B + 105 = 180\\\angle B = 75^{\circ}[/tex]
Now we are supposed to find the perimeter and the area of the ΔABC
We will use the sine rule to find the lengths of sides BC and AC
Sine rule : [tex]\frac{Sin A}{BC}=\frac{Sin B}{AC}=\frac{Sin C}{AB}[/tex]
[tex]\frac{Sin 60}{BC}=\frac{Sin 75}{AC}=\frac{Sin 45}{9}\\BC \times sin(45) = 9 \times sin(60)\\ BC = 11.02[/tex]
[tex]AC \times sin(45) = 9 \times sin(75)[/tex]
AC = 12.29
Perimeter of ΔABC = AB + BC + AC
Perimeter of ΔABC = 9 + 11.02 + 12.29 =32.31 units
Area by using the sine rule:
Area of the triangle ABC =[tex]\frac{1}{2} (AB)(BC) sin B[/tex]
Area of the triangle ABC =[tex]\frac{1}{2} (9)(11) sin(75)[/tex]
Area of the triangle ABC = 47.81 sq. unit
Express 19.07 as a mixed number.
yes or no i make first answer brailiest
Answer: yes
Step-by-step explanation:
Each of the 25 students in Mr. McDonald class sold 16 raffle tickets if each ticket cost $15 how much money did Mr. McDonald’s students raise PLEASE HELP
Answer:
Mr. McDonald's class raised $6,000 dollars.
Step-by-step explanation:
So they're are 25 students in the class and they each sold 16 raffle tickets. The easiest way to do this problem is to first find the amount of raffle tickets sold and then multiply that by 15. You could also just do 25*16*15 but that doesn't make much sense just thinking about it. So the first operation we have to do is 25*16 because multiplication is repeated addition so we're basically doing 16+16 25 times to see how much raffle tickets were sold. So that is 400 and then we multiply by 15 because each ticket sold for 15 dollars so if we sold 400 raffle tickets for 15 dollars each, again multiplication is repeated addition so we do 15+15 400 times which is 400*15=6,000. So Mr.McDonald's class raised $6,000 dollars.
The perimeter of a rectangular room is 60 feet. Let x be the width of the room (in feet) and let y be the length of the room (in feet). Select all of the equations below that could model this
situation
A. 2(x + y) = 60
B. 2x + 2y = 60
C. x+2y = 60
D. 2x + y = 60
E. x+y = 60
Answer:
A and B are the correct answers
The equation that represent the given situation is 2 ( x +y) = 60 and 2x +2y = 60, the correct option is A, and B.
What is an Equation?An equation is a mathematical statement formed when two algebraic expressions are equated using an equal sign.
The equations are useful in determination of unknown parameters.
A rectangle is a polygon with four sides, the opposite sides of a rectangle is parallel and equal.
The perimeter of a rectangular room is 60 feet.
The perimeter of a rectangle is given by,
P = 2 ( Length + Breadth)
Let x be the width of the room (in feet).
Let y be the length of the room (in feet).
Substituting the values in the formula to get the equation.
60 = 2 ( x +y)
2 ( x +y) = 60 ---------- (1)
2x +2y = 60 ------------(2)
Therefore, the equations that could model this is situation 2 ( x +y) = 60 and 2x +2y = 60.
To know more about Equation
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0.03 recurring a fraction
Answer:
the decimal representation of 1/3 = 0.3333333... becomes periodic just after the decimal point, repeating the single-digit sequence "3" infinitely.
plz mark brainliest
what is the answer? pls help
Answer:
There is no constant slope. I hope this helps!
Answer:
-3
Step-by-step explanation:
You can use the slop formula--
22-1 divided by 8-1 = 21/7 = 3
You can check by using any other two points and see if you get the same answer.
Hope this helps!
5 (x+2) +2x URGENT ANSWER FAST PLEASE!!
Answer:
7x+10
Step-by-step explanation:
use distributive property on 5(x+2)
your expression is now 5x+10+2x
Combine like terms so now your answer is 7x+10
Hope this helps
2. Find the length of segment JK with endpoints J(4,8) and K(-1,-2). Leave answer as a
radical. Simplify if necessary.
Answer:
Distance of JK = 15 unit
Step-by-step explanation:
Given:
J(4,8)
K(-1,-2)
Find:
Distance of JK
Computation:
Distance = √(x₂-x₁)² + (y₂-y₁)²
Distance of JK = √(-1-4)² + (-2-8)²
Distance of JK = √25 + 100
Distance of JK = √125
Distance of JK = 15 unit
PLEASE HELP ASAP ∵Jasmine can bake 24 cupcakes in 3 hours. How many cupcakes can she bake in 5 1/2 hours
Answer: 44 Cupcakes, She can make 8 cupcakes per hour and 4 cupcakes every half-hour. 24/3=8
Answer:
Answer: 44 Cupcakes, She can make 8 cupcakes per hour and 4 cupcakes every half-hour. 24/3=8
Step-by-step explanation: bleep
Any help is appreciated.
Step-by-step explanation:
Hey there!
Now, let's look into figure.
angle ACB = 65° { Base angle of triangle ABC}
angle ACB + angle BAC + angle ABC = 180°
65° + 65° + angle ABC = 180°
angle ABC = 180°-130°
Therefore, angle 50°
angle EBD = 50° ( Vertically opposite angle)
Now;
angle EBD= angle DEB = 50° ( Base angle of triangle BDE )
angle BDE + angle DEB + angle EBD = 180° ( Sum of interior angle)
angle BDE = 180° -100°
Therefore, angle BDE = 80°.
Now, 80° + 14x + 2 = 180° { being linear pair}
14x = 180°-82°
14x = 98°
[tex]x = \frac{98}{14} [/tex]
X = 7°
Hope it helps......
what is a thesis statement?
Answer:
A thesis statement is a claim
Step-by-step explanation:
The thesis statement is the sentence that states the main idea of a writing assignment and helps control the ideas within the paper. It is not merely a topic. It often reflects an opinion or judgment that a writer has made about a reading or personal experience. For instance: Tocqueville believed that the domestic role most women held in America was the role that gave them the most power, an idea that many would hotly dispute today.
The diameter of a circle is multiplied by 10 how does the circumference change?
Step-by-step explanation:
The circumference of a circle is given by :
C=2πr, r is the radius of the circle
Also, 2r = D, diameter of the circle
⇒ C = πD
If the diameter of a circle is multiplied by 10, it means,
C = π(10)
⇒ C = 10π
Hence, if the diameter of a circle is multiplied by 10, then its circumference becomes 10π.
Find X and Y in the figure
Answer:
x = 15
y = 19
Step-by-step explanation:
(5x-5) = (4x+10) reason[ being corresponding angle]
or, 5x-4x = 10+5
or, x = 15.
Similarly,
(5x-5)+(6y-4) = 180 reason[being supplementary angle]
putting the value of x in the equation, so
or, (5*15 -5)+(6y-4) = 180
or, 75-5+6y-4 = 180
or, 66+6y = 180
or, y = 30-11
or, y = 19.
