9514 1404 393
Answer:
B) ΔCAT is congruent to ΔDOG
Step-by-step explanation:
If angles are congruent, the triangles are similar. When both corresponding angles and corresponding sides are congruent, the triangles are congruent.
ΔCAT is congruent to ΔDOG
Add the fractions 3/14+15/21. Simplify your answer
The solution of fractions 3/14 + 15/21 is,
⇒ 3/14 + 15/21 = 39/42
We have to given that,
To add the fractions 3/14 and 15/21.
Now, We can add the fractions as,
⇒ 3/14 + 15/21
Since, LCM of 1 and 21 are 42.
Hence, Make the denominator same,
⇒ 9/42 + 30/42
⇒ (9 + 30) / 42
⇒ 39/42
Therefore, The solution of fractions 3/14 + 15/21 is,
3/14 + 15/21 = 39/42
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QUESTION 27
A research survey of 4750 adults found that 4275 had purchased something online of these shoppers, 789 are weekly online shoppers.
Construct a 99% Confidence interval estimate of the population proportion of adults who had purchased something online
A The Point Estimate equals 50.60
(Round to 1 decimal place)
B. The Standard Error equals 1243
(Round to 4 decimal places)
The Critical Value equals
(Round to 2 decimal places)
(Round to 4 decimal places)
D. The Margin of Error equals
and
E. & F. We are 99% confident the true proportion of adults who purchased something online is between
(Round to 4 decimal places)
Using the z-distribution, it is found that characteristics are:
a) 0.2
b) 0.0058
c) z = 2.575
d) 0.0149
e) (0.1851, 0.2149).
f) We are 99% confident the true proportion of adults who purchased something online is between 0.1851 and 0.2149.
Item a:
The point estimate is the sample proportion, hence:
[tex]\pi = \frac{789}{4750} = 0.2[/tex]
Item b:
The standard error is:
[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.2(0.8)}{4750}} = 0.0058[/tex]
Item c:
99% confidence level, hence[tex]\alpha = 0.99[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.99}{2} = 0.995[/tex], so [tex]z = 2.575[/tex].
Item d:
The margin of error is:
[tex]M = zs = 2.575(0.0058) = 0.0149[/tex]
Item e:
The interval is the point estimate plus/minus the margin of error, hence
[tex]\pi - M = 0.2 - 0.0149 = 0.1851[/tex]
[tex]\pi + M = 0.2 + 0.0149 = 0.2149[/tex]
The 99% confidence interval estimate of the population proportion of adults who had purchased something online is (0.1851, 0.2149).
Item f:
We are 99% confident the true proportion of adults who purchased something online is between 0.1851 and 0.2149.
A similar problem is given at https://brainly.com/question/16236451
(40)
8. Use the information in the figure
below to answer questions a. and b.
70°
W
N
Х
35°
a. What is mZw?
b. What is mZz?
PLEASE ANSWER FAST!!!
An object is launched vertically at a velocity of 160 feet per second from the top of a building 100 feet above the ground. Use the model h=-16t^2+vt+c where h is the height of the object at any time t, c is the initial height, in feet, of the object, t is the time in seconds and v is the velocity of the object.
How long will it take the object to reach the maximum height, and what is the maximum height?(Round to the nearest whole number)
Answer:
The question let's us set up the equation
Hope it helps!
Step-by-step explanation:
160= 16t^2+96t+16 and we just solve for t to get t= 3(sqrt 2 - 1) and -3(sqrt 2 - 1).
Hope it helps!
Please help me with this ASAP ASAP please please help
Answer:
Step-by-step explanation:
Base perimeter : 4 x 2 x π = 8π cm
LA = 8π x 4 = 32π cm^2
Base area: 4^2 π = 16π cm^2
SA = 2 x 16π + 32 = 64π cm^2
V = 16π x 4 = 64π cm^3
Surface area to volume ratio for a sphere
56,095 to the nearest whole number
Answer:
56,000
Step-by-step explanation: the neareat whole number is 6000 so you yust take away the 96 and add two zeros
What is the value of x in the figure qor =65 and dot =70 ? Not at is a straight line
Answer:
its 65
Step-by-step explanation:
if you add it up u would see
|x − 5| − |2 − x| + |x + 1| , if x ≥ 5
Answer:
9990% 222$
Step-by-step explanation:
if you work it will help u head
Find the areas of the trapezoids.
Answer:The top side is 5,the top is 2,the bottom side is 5,and the bottom is 5
Answer For the other shape:The top is 2,the bottom is 6,the left is 4,the right is 4
Step-by-step explanation:
Evaluate cos(60 degrees). Write your answer simplified, rationalized form.
Answer:
1 / 2
Step-by-step explanation:
Cos 60°
= 1 / 2
1 / 2 is the answe.
-4(3x - 2x + 4y)
Simplify the expression
Answer:
− 4 x − 16 y
Step-by-step explanation:
Answer:
− 4 x − 16 y
Step-by-step explanation:
How to solve this question
Answer:
D) 60°
Step-by-step explanation:
Because TV and YZ are parallel, and TY and VZ are equal, angle T is equal to angle V. Also, Y and Z would each be 120°.
Find the area of the semicircle. Round your answer to the nearest hundredth. PLSSSSSSS!!!!!!!!!!!
Answer:
1.57 ft²
Step-by-step explanation:
Diameter = 2ft
Radius = 1/2 (diameter) = 1 ft
Area of semicircle = 1/2( πr²)
Area = 1/2 (3.14)(1)²
Area = 1/2(3.14)
Area = 1.57 ft²
Justin opened a savings account with $900 that pays no interest. He deposits an
additional $190 each week thereafter. How much money would Justin have in the
account 30 weeks after opening the account?
I need the answer with justification please
The chance of getting an even number for 1 roll is 1/2 ( half the numbers are even.)
For 3 times in a row:
1/2 x 1/2 x 1/2 = 1/8
The answer is 1/8
Use the INCLUSIVE definition of a trapezoid to identify the TRUE statement. Select all that apply.
No parallelograms are trapezoids.
All parallelograms are trapezoids.
No trapezoids are parallelograms
Trapezoids do not have any parallel sides
A trapezoid has at least one pair of parallel sides.
(I’ll mark brainlist of you wrote down, not link’)
Answer:
All parallelograms are trapezoids.
No trapezoids are parallelograms.
A trapezoid has at least one pair of parallel sides
Step-by-step explanation:
1. Since a parallelogram has two pairs of parallel sides then it has at least one pair of parallel sides. Therefore, all parallelograms are also classified as trapezoids.
2. Trapezoids have only one pair of parallel sides; parallelograms have two pairs of parallel sides. A trapezoid can never be a parallelogram.
3. A trapezoid has one pair of parallel sides.
(I can't put a picture, but I would if I could)
The statement "All parallelograms are trapezoids", statement "No trapezoids are parallelograms" and statement "A trapezoid has at least one pair of parallel sides" are correct.
What is a trapezoid?It is defined as the quadrilateral having four sides in which two sides are parallel to each other, it is a 2-dimensional geometry.
A parallelogram has at least one pair of parallel sides, since it has two pairs of parallel sides. As a result, all parallelograms are considered trapezoids.
Parallelograms have two pairs of parallel sides, whereas trapezoids have only one pair. A parallelogram can never be a trapezoid.
Thus, the statement "All parallelograms are trapezoids", statement "No trapezoids are parallelograms" and statement "A trapezoid has at least one pair of parallel sides" are correct.
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Please help me PLEASE
Answer:
the answer would be Point F
Answer:
The answer is F
Step-by-step explanation:
Please help me simplify this! Thank you so much!
Step-by-step explanation:
8∧-2 x (8∧2)∧3
=8∧-2 x 8∧6
=8∧(-2+6)
=8∧(4)
Use your exponent rules to express as a single power, 9^4 ÷ 27^2
Make sure to do it step by step
Answer:
9
Step-by-step explanation:
9^4=3^8
27^2=3^6
when we divide the powers of the same base ,we take the common base and subtract their exponent.
3^8-^6
=3^2
=9
How do I get from step 2 to step 3?
Answer:
do the floss
Step-by-step explanation:
Which graph shows a line with an x-intercept of (-4, 0) and a slope of −2/5
vzxxbxcbxvzbfdbnjdznvnjzkxnvjnjnjdb
lolhjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjodskvxhugvgxjchvgkzjgvcgkjzx
Is g(x)=9+7x a linear equation
Answer:
Yes
Step-by-step explanation:
A linear equation follows the y=mx+b equation. Your equation is g(x)= 7x+9 which follows the formula.
Answer:
Yes.
Step-by-step explanation:
Option #1: Graph the equation. (you can search "y=9+7x")
Option #2: Look at the equation. Rewrite it as "y=7x+9". This follows the form of y=mx+b, which is the form of a linear equation.
many do apply pls helpn
Answer:
a and b
Step-by-step explanation:
i think b i know a for sho
Answer:
32w+3
Step-by-step explanation:
8x4w=32w and you are left with the 3, so it ends up 32w+3
|y-x|, if y>x PLZ HELP
Answer:
56tt8989899999999×-×554545--455356788:988
for the function f(x)=4/3x+8, what is the average rate of change over any given interval
a. 4
b. 3
c. 4/3
d. 3/4
Answer:
C i think i hope it helps
have a good night
PLZ HELP DUE IN 45 MIN
If angle ABD is 125° and angle BAC is 40° what is the angle measurement of BCA?
Answer: C. 85
Step-by-step explanation: subtract 125 from 40
Help ASAP I’m so confused
Answer:
1) 0.1 unit
2) 0.1 unit²
3) 0.15 unit²
Pls help! Due soon. I will give brainiest *no links*
Answer:
#2 a.
#3 c.
#4 a.
#5 c.
#6 b.
What is the positive solution to the equation 2x^2 = 72?
Answer:
x= 6
Step-by-step explanation:
6*6=36*2=72