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Anettt [7]
3 years ago
5

Points!! Help PLEASE!!!!!!!!!!!!!!!!! I've been stumped forever!:( Point estimate? Poll's margin of error? Fill in the blanks:

Mathematics
1 answer:
Brut [27]3 years ago
8 0
The point estimate is the mid-point of the interval:
\frac{.35+.43}{2} = \frac{.78}{2} = 0.39

The margin of error is the difference between the endpoints of the interval and the mid-point.
0.43 - 0.39 = 0.04 = 4\%
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2y-____=0;y=0 HELPPPPPPP
AVprozaik [17]

Answer:

<em>D.)  0</em>

Step-by-step explanation:

Its not A.  cause 2y−2=0  is y = 1

Its not B. cause 2y−1=0  is y = 1/2

Its not C. cause 2y−3=0  is y = 3/2

Soo... The only option left is D.

It IS D. cause 2y − 0 = 0  is y=0

<em>So you are Correct!!!</em>

<em>hope I helped... <3</em>

<em>Good luck dear :)</em>

4 0
4 years ago
Help me please with an explanation/work, thank you!!
kiruha [24]

Answer:

1. 3

Step-by-step explanation:

8 0
3 years ago
I WILL GIVE BRAINLIEST PLEASE HELP!!!
forsale [732]

A. side AB = 38/3 units B.m∠VYX =77°

Step-by-step explanation:

A.A rhombus has its four sides equal. This means side AB=side CD

Given that AB=5x+1 and CD=2x+8  equate the two sides to find value of x as;

5x+1=2x+8

collect like terms

5x-2x=8-1

3x=7

x=7/3

side AB = 5x+1

AB= 5*7/3 +1

AB=35/3 +1

AB=35/3 +3/3 = 38/3

B.

The diagonals of a rhombus intersect to form 90°

Hence

(3n²-0.75)°=90°

3n²=90°+ 0.75°

3n² =90.75° -----dividing by 3 both sides

n² =90.75°/3 =30.25°

n²=30.25°

n=√30.25°

n=5.5°

so angle Z =90°

and angle ZVW =(9n+2)°

∠ZVW = (9*5.5 +2 )° =51.5°

In a rhombus all four sides are equal, thus side VY = YX.This means triangle VYX is an isosceles triangle.

Hence angle ∠YVZ=∠WVZ =51.5°, and because VYX is an isosceles triangle then ∠YXV =51.5° so

∠VYX= 180°-(51.5°+51.5°)

          =180°-103°=77°

Learn More

Properties of a Rhombus : brainly.com/question/1305249

Keywords : Rhombus, fraction, simplest form

#LearnwithBrainly

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Lostsunrise [7]

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Step-by-step explanation:

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5 0
3 years ago
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