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zimovet [89]
3 years ago
14

Which of the following is the same as 8.4 × 10 to the second power?

Mathematics
2 answers:
Bess [88]3 years ago
4 0
I believe the answer would be C.) 840
stich3 [128]3 years ago
3 0
1) 8.4 \times 10^{2}  is the same as 8.4 \times 100 because the order of operations state to perform the exponents before multiplication. 
8.4 \times 100 = 840

The answer is C) 840

2) I'm assuming the second thing you said was a typo, but 8.4 × 10*2 is the same as 8.4 x 20, for the same reason above. 8.4 x 20 = 168.
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7 log(15/16)+6log(8/3)+5log(2/3)+log(32/25)<br>by logarithm laws<br>​
hammer [34]

Answer:

1.5871

Step-by-step explanation:

According to the Question,

  • we have, 7 log(15/16)+6log(8/3)+5log(2/3)+log(32/25)

The Solution, With Basic Properties of Log.

7*log15-7*log16+6*log8-6*log3+5*log2-5*log3+log32-log25

7*1.176-7*1.204+6*0.903-6*0.477+5*0.3010-5*0.477+1.505-1.3979

on Solving, We get

1.5871

4 0
3 years ago
See the picture below!!
Darya [45]

Answer:

Q1) x = 17.3

y = 8.7

Q2) d = 19

Step-by-step explanation:

Question 1

Angle = 60°

Hypotenuse = x

Adjacent = y

Opposite = 15

<u>Step 1: Find x</u>

Sin (angle) = opposite/hypotenuse

Sin (60°) = 15/x

x = 10√3 = 17.3

<u>Step 2: Find y</u>

Tan (angle) = opposite/adjacent

Tan (60°) = 15/y

y = 5√3 = 8.7

Question 2

<u>Step 1: Find the diagonal of the base</u>

c² = a²+b²

c² = 6² + 10²

c = 2√34 = 11.7

<u>Step 2: Find diagonal d</u>

c² = a² + b²

d² = 11.7² + 15²

d = 19

!!

7 0
3 years ago
8/10 lies _____ on number line.
Andre45 [30]

8/10 = 0.8

Therefore, 0.8 (8/10) is put on the number line shown below.

3 0
3 years ago
a hot dog stand sells two type of hot dogs: plain hot dogs and chili-cheese dogs. plain hot dogs code $3 and chili-cheese dogs c
Arte-miy333 [17]

Answer:

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Step-by-step explanation:

5 0
2 years ago
Henry is giving a 5.5% tip on his bill ,b and his final cost is $60. Which of the following represents that
Nikitich [7]

Answer:

A

Step-by-step explanation:

A

8 0
2 years ago
Read 2 more answers
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