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pashok25 [27]
3 years ago
15

Rewrite in simplest terms: 8r – 4(7r – 5)

Mathematics
1 answer:
SashulF [63]3 years ago
5 0

Answer:

-20(r-1)

o

-20r+ 20

Step-by-step explanation:

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A bag contains 30 cookies: 9 vanilla, 9 chocolate, and 12 oatmeal. What is the probability that a chocolate is randomly selected
telo118 [61]

There is 9 chocolate cookies, so the probability of choosing chocolate is \frac{9}{30}. We then simplify to get \frac{3}{10}, or 0.3.


3 0
3 years ago
A castle has to be guarded 24 hours a day. 7 nights are ordered to split each day guard duty equally. How long will each night s
melamori03 [73]

Answer:

3.43 hours

Step-by-step explanation:

A castle has to be guarded 24 hours a day. 7 knights are ordered to split each day guard duty equally. How long will each knight spend on guard duty in one day?

From the above question:

7 knights = 24 hours

1 knight = x hours

Cross Multiply

7 knights × x hours = 1 knight × 24 hours

x hours = 1 knight × 24 hours/ 7 knights

x hours = 3.4285714286 hours

Approximately = 3.43 hours

Therefore, each knight would spend 3.43 hours on guard duty in one day

5 0
3 years ago
Jacob translated figure ABCD 3 units up to form figure EFBA. Then he translated figure EFBA 1 unit down and 4 units right to for
Eva8 [605]
Because they are all translations, FB=BC=AD, so the segment FC is 6
Hope that helps!
7 0
3 years ago
Y=3 csc x how do i solve this
AveGali [126]
The period of the function can be calculated using <span><span><span>2π</span><span>|b|</span></span><span><span>2⁢π</span><span>|b|</span></span></span>.Period: <span><span><span>2π</span><span>|b|</span></span><span><span>2⁢π</span><span>|b|</span></span></span>Replace <span>bb</span> with <span>11</span> in the formula for period.Period: <span><span><span>2π</span><span>|1|</span></span></span>
4 0
3 years ago
A fireworks company has two types of rockets called Zinger 1 and Zinger 2. The polynomial -16t^2+150t gives the height in feet o
Alisiya [41]
The height of Zinger 1 after 6 seconds is given by the polynomial

-16 t^{2}+150t, for t = 6, 

so the height is -16 *6^{2}+150*6=-576+900=324  (feet)


The height of Zinger 2 after 6 seconds is given by the polynomial

-16 t^{2}+165t, for t = 6, 

so the height is -16 *6^{2}+165*6=-576+990=414  (feet)


At the moment the rockets explode, Zinger 2 is 414-324=90 (feet)

higher than Zinger 1.


Answer: 90 feet
7 0
3 years ago
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