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Basile [38]
3 years ago
13

A certain insecticide kills 70% of all insects in laboratory experiments. A sample of 10 insects is exposed to the insecticide i

n a particular experiment. What is the probability that less than 9 insects will die? Round your answer to four decimal places.
Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

4/5

Step-by-step explanation:

the number of possible outcomes ÷ the number of total outcomes=8/10=4/5

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carols bikes 1 kilometer east 4 kilometers north and then 5 kilometers east again. how far is caroll from her starting position
Volgvan
That'd be a total of 6 km east and 4 km north.

The distance traveled from Carol's starting point, along the path described, is
1 km + 4 km + 5 km = 10 km.

However, if you want the straight line distance from starting to end point, that would be found using the Pyth. Thm.:

sqrt [ (6 km)^2 + (4 km)^2 ] = sqrt(52) = 2sqrt(13) km
3 0
3 years ago
Read 2 more answers
​If \left| OA\right| =5∣OA∣=5 and \left| OA'\right| =7.5∣OA ′ ∣=7.5, what is the scale factor, rr, of this dilation?
Igoryamba

Answer:

The scale factor is 1.5

Step-by-step explanation:

Given

\left| OA\right| =5

\left| OA'\right| =7.5

Required

Determine the scale factor

The scale factor (k) is calculated using:

k = \frac{\left| OA'\right|}{\left| OA\right|}

Substitute values for OA and OA'

k = \frac{7.5}{5}

k = 1.5

<em>The scale factor is 1.5</em>

6 0
3 years ago
The espression 4x^2-4x-120 is equivalent to?
Vadim26 [7]
Glad you know how to use the ^ feature :) it helps alot!

Answer: <span><span>4<span>(<span>x<span>−6</span></span>)</span></span><span>(<span>x+5</span>) </span></span>
5 0
3 years ago
What is the standard form of 30+5+2/10
Licemer1 [7]

Combine the terms.

30 + 5 = 35

35 + 2/10 = 35 2/10

35 2/10 is your answer

hope this helps

5 0
3 years ago
10 yards to 10 feet ratio
jarptica [38.1K]

Answer:

10 ft= 3 yd 1.000000 ft

Step-by-step explanation:

No explanation needed , it's a simple conversion.

6 0
3 years ago
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