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Umnica [9.8K]
2 years ago
15

The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the sd of the m

easurements is 20 mm. The histogram looks reasonably like a normal curve. Use the normal curve to estimate the following percentages.
a. 20.9%
b. 29.1%
c. 41.8%
d. 70.9%
e. 68.27%
Mathematics
1 answer:
Bess [88]2 years ago
6 0
B is the answer i believe
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Can someone help me out with this at all?
dsp73

Answer:

1 maps to 1

2 maps to 3

3 maps to 2

Step-by-step explanation:

the correctly assigned answer options describe everything.

there is not much else to say and explain.

these are all true statements due to the symmetry principle of a circle.

when 2 direct connections of two points on the circumference of a circle have the same length, then also their bent distances on the circumference of the circle are the same. and vice versa.

and yes, the perpendicular radius (or diameter) of the circle towards such a line cuts this line in half.

6 0
3 years ago
What is the area of this composite figure?
Gelneren [198K]

Answer:

249 centimeters squared

Step-by-step Explanation:

The area of the rectangle: l x w, where l is the length and w is the width.

= 15.5 x 18

= 279

Area of the smaller rectangle: l x w, where l is the length and w is the width.

= 4 x 7.5

= 30

We do not need this 30.

Area of the shaded region:

= 279 - 30

= 249 cm²

5 0
2 years ago
7r+3r-8=8+2r. Solve?
Mazyrski [523]

Given: 7r+3r-8=8+2r

Simplify: 10r-8=8+2r

Addition: add 8 to each side: 10r=16+2r

Subtraction: Take 2r from each side: 8r=16

Division: Divide each side by 8 for answer: r=2

Answer: r=2



4 0
3 years ago
Read 2 more answers
Mom’s muffin recipe uses 10 ounces of berries for 2 dozen muffins grandma’s muffin recipe uses 12 ounces of berries for 3 dozen
Rudiy27

Answer:

can u add a photo for me to see

3 0
3 years ago
There are 8 roses in a vase of 13 flowers. The rest are daisies.
Blizzard [7]

Answer:

  1. 5:13
  2. 8:5

Step-by-step explanation:

For first part:

  1. Roses = 8
  2. Daises = All flowers - Roses
  3. Daises = 13 - 8
  4. Daises = 5
  5. Daises:All Flowers = 5:13

For second part:

  1. Roses:Daises = 8:5

I hope this helps!

7 0
3 years ago
Read 2 more answers
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