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nasty-shy [4]
3 years ago
6

Plz help! I will mark you brainliest!

Mathematics
1 answer:
s2008m [1.1K]3 years ago
4 0

Answer:

  A.  80

Step-by-step explanation:

No math necessary. You know the brace needs to be longer than the distance between posts, so cannot be 4, 15, or 42 inches. The only answer choice longer than 64 inches is the correct one:

  80 inches

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Bernie Spent 1 hour and 57 minutes knitting a scarf for her grandsonshe spent 1 hour and 21 minutes knitting a scarf for her gra
Kobotan [32]

Answer:

36 minutes

Step-by-step explanation:

1 hr = 60 minutes

grandson scarf = 60 minutes + 57 minutes = 117

granddaughter  = 60 minutes + 21 minutes = 81

117 - 81 = 36

7 0
3 years ago
Jess borrows 250 from the bank. The band chargEs 11% simple interest over 2 years.
Inessa [10]

Answer:

$305

Step-by-step explanation:

You have to use the following formula to calculate the accrued amount:

A=P(1 + rt), where:

A= accrued amount

P= principal amount= $250

r= rate of interest= 11%

t= time period= 2 years

Now, you have to replace the values in the formula:

A=250*(1+0.11*2)

A=250*(1+0.22)

A=250*1.22

A=305

According to this, at the end of 2 years, Jess owes the bank $305.

7 0
2 years ago
How much time is needed for a 15,000 W engine to do 1,800,000 J of work? (Power: P = W/t) 0.008 s 8 s 120 s 1,785,000 s
Thepotemich [5.8K]
By definition, the power is given by:
 P =  \frac{W}{t}
 By definition, the power is given by:
 Where,
 W: Work done
 t: time
 Clearing the time we have:
 t = \frac{W}{P}
 Substituting values we have:
 t = \frac{1800000}{15000}
 Making the corresponding calculations we have:
 t = 120s
 Answer:
 
is needed for a 15,000 W engine to do 1,800,000 J of work about:
 
t = 120s
7 0
3 years ago
Read 2 more answers
Need help on questions 5-8 with work and answers plz i will really be very greatful
Leya [2.2K]
Im not sure cuz i learned this for long time ago
but i think 5 is 1
and 7 might be2
i have no idea for 8
im sorry :/
8 0
3 years ago
Graph each linear equation y equals negative 3x - 2​
den301095 [7]

Answer: y=-(3x-2)= -3x+2

The intercept with y is 2

The intercept with x is 2/3

4 0
2 years ago
Read 2 more answers
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