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3 years ago

What is 4/5 x 3 1/8=

Mathematics

2 answers:

Alex787 [66]3 years ago

8 0

Answer:

2.5

Step-by-step explanation:

Ira Lisetskai [31]3 years ago

8 0

The answer would be 5/2 or 2.5

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Please help me out with this geometry

Natalka [10]

Answer:

$(x-[-7])^{2} +(y-[9])=[25]$

Step-by-step explanation:

Center (h,k) = (-7, 9)

Radius, r = 5

<u>Equation</u>: $(x-h)^{2} +(y-k)^{2} =r^{2}$

$(x-(-7))^{2} +(y-9)^{2} =(5)^{2}$

$5^{2} =25$

So, $(x-(-7))^{2} +(y-9)=25$

<u>OAmalOHopeO</u>

6 0

3 years ago

Which is equivalent to 64 Superscript one-fourth?

Katarina [22]

Step-by-step explanation:

Info : 2^(6)=64

then

64^(1÷4) = (2^(6))^(1÷4)

=2^(6÷4)

=2^(3÷2)

=2√(2)

=2.828427124746

3 1

4 years ago

Consider two medical tests, A and B for a virus. Test A is 90% effective at recognizing the virus when it is present, but has a

Licemer1 [7]

P(V|A) is not 0.95. It is opposite:

P(A|V)=0.95

From the text we can also conclude, that

P(A|∼V)=0.1

P(B|V)=0.9

P(B|∼V)=0.05

P(V)=0.01

P(∼V)=0.99

What you need to calculate and compare is P(V|A) and P(V|B)

P(V∩A)=P(A)⋅P(V|A)⇒P(V|A)=P(V∩A)P(A)

P(V∩A) means, that Joe has a virus and it is detected, so

P(V∩A)=P(V)⋅P(A|V)=0.01⋅0.95=0.0095

P(A) is sum of two options: "Joe has virus and it is detected" and "Joe has no virus, but it was mistakenly detected", therefore:

P(A)=P(V)⋅P(A|V)+P(∼V)⋅P(A|∼V)=0.01⋅0.95+0.99⋅0.1=0.1085

7 0

3 years ago

Desiree drove north for 30 minutes at 50 miles per hour. Then, she drove south for 60 minutes at 20 miles per hours. How far and

mylen [45]

Answer:

Step-by-step explanation:

The scenario is illustrated in the attached photo.

Desiree drove north for 30 minutes at 50 miles per hour.

Distance = speed × time

Distance travelled by Desiree to the north is 50 × 30 = 1500 miles

Distance travelled by Desiree back from the north and to the south is

60 × 20 = 1500 miles

She started from south and drove 1500 miles towards the north. She returned by driving 1200 miles again towards south . Distance of Desiree from where she started will be 1500 - 1200 = 300 miles.

She is 300 miles from her starting position and she is in the southern direction.

5 0

4 years ago

If the area of a rectangle is 8.4 x 1012 ft2 and the length of the rectangle is 2.0 x 108 ft, what is the width of the rectangle

KATRIN_1 [288]

I hope this helps you

6 0

3 years ago