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xeze [42]
4 years ago
7

I need help with numbers 8 and 9...

Mathematics
2 answers:
Alchen [17]4 years ago
8 0
8.) Area= 22 squared, Perimeter= 26
9.) Area= 44 squared, Perimeter= 30

Svetach [21]4 years ago
8 0

Answer:

8.  A = 22,   P = 26

9.  A = 44,   P = 30

Step-by-step explanation:

see attached

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PLZ HELP WILL GIVE BRAINLIEST and explain
satela [25.4K]
The area is 100 because 15*B(9)=100
7 0
4 years ago
Find the measures of the numbered angles in the isosceles trapezoid.
torisob [31]

Answer:

Step-by-step explanation:

in an isocelles trapezoid, we have the properties:

the lower base angles are congruent

the upper base angles are congruent

we have an angle= 44

the angle #3= 44 because of the properties

so the lower base angles are equal and equal to 44

sum of the angles in trapezoid=360

360-(44*2)=360-88=272

upper base angles are equal

272/2=136

angle1=angle2=136

4 0
3 years ago
Someone has conducted a study to see if there is increased risk of getting lung cancer if you work in a coal mine. In group 1, 3
AleksandrR [38]

Answer:

Sample relative risk is 10.    

Step-by-step explanation:

We are given the following in the question:

Group 1 of coal miners: 30 out of 150 get lung cancer.

\text{P(Lung cancer for coal miner)} = \dfrac{30}{150} = \dfrac{1}{5}

Group 2 of non-coal miners: 5 out of 250 get lung cancer

\text{P(Lung cancer for non-coal miner)} = \dfrac{5}{250} = \dfrac{1}{50}

Sample relative risk:

  • It is the ratio of probability of an outcome in an exposed group to the probability of an outcome in an unexposed group.

Sample relative risk =

\dfrac{\text{P(lung cancer for coal miner)}}{\text{P(lung cancer for non coal miner)}}\\\\=\dfrac{\frac{1}{5}}{\frac{1}{50}} = \dfrac{50}{5} = 10

Thus, sample relative risk is 10.

4 0
3 years ago
How to solve polynomials?
liberstina [14]

Factoring:

FOIL (first, outer, inner, last) method

(a+b)(c+d) = 0

ac+ad+bc+bd = 0

Zeros:

(x+a)(x+b) = 0

x+a = 0, x= 0-a

x+b = 0, x= 0-b

4 0
3 years ago
HELP PLEASE AND NO LINKS!!!!!!
enot [183]

Answer:

Step-by-step explanation:

Width =x

Length = 2*x = 2x

Diagonal = 5√5

Use Pythagorean theorem

Length² + Width² = diagonal²

  (2x)²    + x²        = (5√5)²      

{(5\sqrt{5})^{2}=5\sqrt{5} *5\sqrt{5}=5*5*\sqrt{5*5}=25*5=75}

     4x²   + x²        = 75

                      5x² = 75

                        x²  = 75/5

                       x²   = 15

                        x = √15

Width = √15

Length = 2√15

Area of rectangle = length *width

                             = √15 *2√15

                             = 2* \sqrt{15*15}\\\\= 2*15\\= 30

                             = 30 square units

4 0
3 years ago
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