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AVprozaik [17]
3 years ago
7

Megan solved a problem by finding 538 – 100 and then adding 1. Which problem did she solve? CLEAR CHECK 538 + 99 538 – 99 538 –

101 538 + 101
Mathematics
1 answer:
Zinaida [17]3 years ago
4 0
The answer is 538-99
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A construction worker drops a hammer from a height of 25 m.
Snezhnost [94]

Answer:

Time at which the hammer reaches the ground is 2.3 seconds.

Step-by-step explanation:

We are given the formula as, h(t)=-4.9t^2+v_{o}+h_{o}.

It is known that, when height i.e. h_{o}=25 meter, then velocity v_{o}=0 m/sec.

So, we get the formula as, h(t)=-4.9t^2+25.

Now, when the hammer hits the ground, the height h_{o}=0 meter.

Thus, we have,

h(t)=-4.9t^2+25

⇒ 0=-4.9t^2+25

⇒ 4.9t^2=25

⇒ t^2=5.1

i.e. t= ±2.3 sec

Since, time cannot be negative.

So, t= 2.3 sec

Hence, the time at which the hammer reaches the ground is 2.3 seconds.

4 0
3 years ago
Read 2 more answers
2/
docker41 [41]

Answer:

2/

For all values of x,

f(x)=2x-3

and

a) Find fg(x).

Simplify and give your answer in the form ax² + b

b) Find gf(x).

Simplify and give your answer in the form ax² + bx + c

g(x) = x² + 1

Step-by-step explanation:

5 0
2 years ago
What is the weight difference??
Nana76 [90]

Answer:

32 lbs

Step-by-step explanation:

John weighs 104 lbs

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The difference is 136-104 = 32 lbs

7 0
3 years ago
Soap A is $4 for 15 ounces and Soap B is $6 for 25 ounces. Which is the cheaper buy per dollar? soap a or soap b
rusak2 [61]

Answer:

Soap A

Step-bystep explanation:

15 / 4 = 3.75,

So Soap A Unit Price is $3.75.

25 / 6 = 4.17.

So Soap B Unit Price is $4.17.

6 0
3 years ago
Anna read 5 books if her brother read 3 times as many books how many did he read
BARSIC [14]

Answer:

15

Step-by-step explanation:

8 0
3 years ago
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