Answer:
0.0421
Step-by-step explanation:
Given that
There are 510 people who asked they liked dogs
62% said that yes
We need to find out the margin of the error
So,
standard error is
= sqrt(0.62 × 0.38 ÷ 510)
= 0.0215
now the margin of error is
= 0.0215 × 1.96 z score
= 0.0421
The right rectangular prism is filled with cubes that have a side length of 1/8
foot.
How many cubes does it take to fill the prism? (Look at the photo please!!)
can u please help me
Answer:
(a) x=45°
(b) If AD was parallel to BC, <A would be equal to (180-<B)=90 (corresponding angles). Since <A≠90, we can see that AD and BC aren't parallel.
Step-by-step explanation:
(a)
Angles in a quadrilateral add to 360:
<A+<B+<C+<D=360
2x+90+x+3x=360
6x=270
x=45°
(b)
If AD was parallel to BC, <A would be equal to (180-<B)=90 (corresponding angles). Since <A≠90, we can see that AD and BC aren't parallel.
Answer: Step-by-step explanation:
3x+2x+x=360-90
6x=270
x=45
∠DAB=2x=90° and ∠ABC=90° ⇒ AD║BC
3.2468 rounded to the nearest tenth.
please help me
Answer:
3.2
Step-by-step explanation:
Find the number in the tenth place
2
and look one place to the right for the rounding digit
4
. Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
200 + 34 =n 34 В. 166 C.200 D. 234
Answer:
n = 234
Step-by-step explanation:
make me brainliest
Can someone pls help me I’m stuck
Answer:
i am sorry i have no idea sorry
Answer: B
Step-by-step explanation: Hope this help :D
i cant find the answer
Answer:
D
Step-by-step explanation:
6ab/1 b^8=6a/b^7
illmakeubrainlessforthecorrectanswer
Answer:
THE CORRECT ANSWER IS B- 73 FEETThe given condition in question will form a right angle triangle
and the length of sides of triangle are given 55ft, 48ft and missing one.
Now using pythagoras theorem,55²+48²= x²
x² = 3025 + 2304
x² = 5329
Taking square root of 5329 will give 73 ft!
In the diagram below, DF = JL = a, FE = LK = b, and triangle DEF is a right triangle.
Use the drop-down menus to complete the proof that if the equation a² + b2 = c2 is true of
the side lengths in triangle JKL, then triangle JKL must be a right triangle.
a
b
c
b
Triangle DEF is a right triangle
a² +6² c²
Click the arrows to choose an answer from each menu.
To prove triangle JKL is a right triangle, we must show that Choose... is a right angle.
Since triangle DEF is given to be right triangle, the Pythagorean theorem can be applied to
determine that Choose...
We already know that a² + b2 = c in triangle JKL, SO
these two equations show that Choose...
which is enough to
prove that triangles DEF and JKL are congruent triangles. Then, triangle JKL must be a
right triangle because Choose...
hi
Answer:
Angle L,
a^2+b^2=DE^2
De^2=c^2 and CE=c
angle L=F
ΔDEF and ΔJKL are congruent to each other.
TriangleTriangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.
Right angle triangleIt is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
Given
DF = JL = a, FE = LK = b,
And ΔDEF is a right triangle.
To findΔDEF and ΔJKL are congruent to each other.
How to find the ΔDEF and ΔJKL are congruent to each other?Since the Pythagoras theorem is applicable in ΔDEF.
a² + b² = c²
This equation also satisfies the ΔJKL Hence angle K is the right-angle.
Since, ∠F = ∠L = 90°,
DF = JL = a,
FE = LK = b
Therefore, ΔDEF ≅ ΔJKL
Thus, ΔDEF and ΔJKL are congruent to each other.
More about the triangle link is given below.
https://brainly.com/question/25813512
what is 23^a x 23^b= Pls I need the answer
Answer:
23^(a+b)
Step-by-step explanation:
23^a x 23^b =23^(a+b)
Which expression is equivalent to 6 (3x + 4)?
9x +4
180 + 24
9.2 + 10
18.0 +4
Done
Answer: 18x+24
Step-by-step explanation:
It is possible none of the choices is the solution?
If I’m wrong, then which one is the correct answer?
Answer:
I am pretty sure the answer would be B!
Hope this helps
Mark me brainliest if I'm right :)
Find the area of the figure below. Round your answer to one decimal place.
Answer: 57.1 (rounded)
Step-by-step explanation:
Area of triangle formula: 1/2 x base x height
Area of a semicircle: 1/2 x pi x r^2
(1/2 x 8 x 8) + (1/2 x pi x 4^2)
= 57.1 (rounded)
Find the the measure of angle 7
Answer:
60
Step-by-step explanation:
180-120 = 60
The angles are vertical.
Answer:
60
Step-by-step explanation:
find sum of the roots
full questions is up there in the photo attached
helppp plz :(
Answer:
C. -4/3
Step-by-step explanation:
Start by finding the roots of the equation by factorising.
3x³+4x²-4x=0
x(3x²+4x-4)=0
x(3x-2)(x+2)=0 [because (ax+b)(cx+d)=(ac)x²+(ad+bc)x+(bd)]
If multiplying these three terms works out to be zero, we know that one of the terms must be zero, as anything multiplied by zero is zero.
So
x=0, or 3x-2=0, or x+2=0
Which means our roots are
x=0, x=2/3, x=-2
Now find the sum of these roots: 0+(2/3)-2=(2/3)-(6/3)=-4/3
A marketing professor at Givens College is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 10 students who took the course last quarter follow.
Hours Spent Studying Total Points Earned
45 40
30 35
90 75
60 65
105 90
65 50
90 90
80 80
55 45
75 65
a) Develop an estimated regression equation showing how total points earned is related to hours spent studying.
b) Test the significance of the model with alpha = .05.
c) Predict the total points earned by Mark Sweeney. He spent 78 hours studying.
d) Develop a 95% prediction interval for the total points earned by Mark Sweeney.
Answer:
ansber 5 good by. ............
HELLLP PLSsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Answer: A and D are your answers
-5(x-5)=2(-4x+5) find x step by step please
Answer: -5
Step-by-step explanation:
-5(x-5)=2(-4x+5)
-5x + 25 = -8x +10
3x +25 = 10 (add 8 from both sides)
3x = -15 (subtract 25 from both sides)
x = -5 (divide 3 from both sides)
Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.
Answer:
Angles ∠B and ∠C are complementary, not supplementary.
Step-by-step explanation:
I took the test. (khan academy)
Her proof is not correct because angles ∠B and ∠C are complementary, not supplementary.
What angles are not supplementary?If you add two acute angles in which each angle is large as possible, its sum will be less than 180°. By the definition of supplementary angles, it is impossible to get the supplementary angle when we add two acute angles.
How do you know if angles are complementary neither or supplementary?Supplementary angles are two angles whose sum is 180 degrees while complementary angles are two angles whose sum is 90 degrees. Supplementary and complementary angles do not have to be adjacent, but they can be.
Learn more about complementary here https://brainly.com/question/16281260
#SPJ2
In the school parking lot at the high school, there were 120 cars and 30 SUVs, for a total of 150 vehicles. Complete the statement: People drove cars and SUVs in a ratio of __ to 1. (PLEASE HELP I NEED THE ANSWER ASAP)
Answer:
120 to 30 cars to SUVs, 120 to 150 cars to vehicles, 30 to 150 SUVs to vehicles, 4 to 1 cars to SUVs
PLEASE HURRY AND HELP !!!!!!
Answer:
b
Step-by-step explanation:
the diameter is the length in the middle of the c circle of that makes sense while the radius is half of that. I hope this helps ik it's not the best description
 PLEASE HELPPPPP ME PLEASE I DONT KNOW WHAT TO DO ☹️#7
Given:
The function is:
[tex]f(x)=-2x+5[/tex]
To find:
The inverse of the given function, then draw the graphs of function and its inverse.
Solution:
We have,
[tex]f(x)=-2x+5[/tex]
Step 1: Substitute [tex]f(x)=y[/tex] .
[tex]y=-2x+5[/tex]
Step 2: Interchange x and y.
[tex]x=-2y+5[/tex]
Step 3: Isolate variable y.
[tex]2y=5-x[/tex]
[tex]y=\dfrac{5-x}{2}[/tex]
Step 4: Substitute [tex]y=g(x)[/tex].
[tex]g(x)=\dfrac{5-x}{2}[/tex]
Hence, the inverse of the given function is [tex]g(x)=\dfrac{5-x}{2}[/tex] and the graphs of these functions are shown below.
Which of these groups of relative frequencies will be best buy a pie chart
Answer: You are correct! Whatever adds up to 100% is the answer! :)
What is the speed of the barrel if it took 91 seconds to travel 100 meters?
0.91 Meters per second
plz mark brainliest
Without using the formula, work out the gradient of the graph shown.
Give your answer in its simplest form.
A seamstress charges 25$ for an initial visit and then 18$ per hour of work. Emma paid 88.00$ to make a dress. How long did it take to seamstress Emma's dress
What is the area, in square inches, of the isosceles trapezoid below?
EASY 7TH GRADE MATH
2r=62
Answer:
r=31
Step-by-step explanation:
2r=62
r=31
If a number cube numbered 1-6 is tossed 300 times about how many times would you expect to land on the number 3?
50
200
150
100
A batted baseball leaves the bat at an angle of θ with the
horizontal and an initial velocity of v0 = 300 feet per second. The
ball is caught by an outfielder 530 feet from the home plate. The
range r of a projectile is given by sin 2
32
1 2
o r v
.
What is the value of the angle of the bat from the ground?
Answer:
Sixty Baseball Physics Problems © page 1 ! ! Sixty Baseball Physics Problems (many with correct solutions!) Sixty Baseball Physics Problems
Step-by-step explanation:
THIS IS A GCF PROBLEM FOR A2 HELP!!!