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Elza [17]
3 years ago
15

Probability help!

Mathematics
1 answer:
bagirrra123 [75]3 years ago
7 0

Answer:

90%

Step-by-step explanation:

Since Brandon has a 25% chance of hitting a target, and there is 8 targets, you can take 25% of 8. This will get you an answer of 2. So, in this way Brandon has a 90% chance of hitting at least one target.

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Craig ran the first part of a race with an average speed of 8 miles per hour and biked the second part of a race with an average
lutik1710 [3]
Let the distance of the first part of the race be x, and that of the second part, 15 - x, then
x/8 + (15 - x)/20 = 1.125
5x + 2(15 - x) = 40 x 1.125
5x + 30 - 2x = 45
3x = 45 - 30 = 15
x = 15/3 = 5

Therefore, the distance of the first part of the race is 5 miles and the time is 5/8 = 0.625 hours or 37.5 minutes
The distance of the second part of the race is 15 - 5 = 10 miles and the time is 1.125 - 0.625 = 0.5 hours or 30 minutes.
4 0
3 years ago
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Two is subtracted from a number, and then the difference is multiplied by 5. The result is 30
Vanyuwa [196]

Answer:

8

Step-by-step explanation:

8-2=6

6x5=30

6 0
2 years ago
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Three groups of students used different methods to estimate the diagonal length of a patio in feet. Their results were:
podryga [215]
F14.33 1425,413 that’s the right number
5 0
3 years ago
What does it mean when a researcher states that an observed effect or difference is significant with a confidence level of 99%?
icang [17]

Answer:

it affected more than half

Step-by-step explanation:

5 0
3 years ago
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Which could be the area of one face of the triangular prism? Select three options.
katovenus [111]

Answer:

(A)24 square units

(C)72 square units

(D)96 square units

Step-by-step explanation:

<u>Triangular face</u>

Height of the Triangle=6 Units

Base of the Triangle=8 Units

Area of the Triangular Face

=\frac{1}{2}bh\\ =\frac{1}{2}*8*6\\=24 $ square units

<u>Rectangular Faces</u>

Area of Rectangular face with dimension 12 by 10=12 x 10=120 Square Units

Area of Rectangular face with dimension  12 by 8= 12 X 8=96 Square Units

Area of Rectangular face with dimension 12 X 6=12 x 6=72 Square Units

From the options, the areas are:

  • 24 square units
  • 72 square units
  • 96 square units

4 0
3 years ago
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