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lions [1.4K]
3 years ago
6

A computer can perform 4.5×〖10〗^2 instructions in a second. Which expression shows how long it would take to perform 1.8×〖10〗^10

instructions?
4×〖10〗^5 seconds
4×〖10〗^7 seconds
4×〖10〗^8 seconds
8.1×〖10〗^12 seconds
Mathematics
1 answer:
GalinKa [24]3 years ago
5 0
A computer can perform 4.5×〖10〗^2 instructions in a second. Which expression shows how long it would take to perform 1.8×〖10〗^10 instructions?



8.1×〖10〗^12 seconds
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5p-3r=1
Brilliant_brown [7]
If you would like to solve the system of equations, you can do this using the following steps:

5p - 3r = 1     /*2
8p + 6r = 4
__________
10p - 6r = 2
<span>8p + 6r = 4
</span>__________
10p - 6r + 8p + 6r = 2 + 4
18p = 6
p = 6/18
p = 1/3

<span>5p - 3r = 1
</span>5 * 1/3 - 3r = 1
5/3 - 3r = 1
5/3 - 1 = 3r
5/3 - 3/3 = 3r
2/3 = 3r
r = 2/9

(p, r) = (1/3, 2/9)

The correct result would be <span>(1/3, 2/9)</span>.
4 0
3 years ago
Read 2 more answers
A slug travels 3 centimeters in 3 seconds. A snail travels 6 centimeters in 6 seconds Both travel at constant speeds. Mai says,
Mashutka [201]

Answer:

No I dont agree with Mai. As both the slug and snail are moving with constant speed.

Step-by-step explanation:

Given that:

A slug travels 3 centimeters in 3 seconds.

Speed of slug = distance/ time = 3/3 = 1 cms^-1

A slug travels 3 centimeters in 3 seconds.

Speed of snail = distance/ time = 6/6 = 1 cms^-1

Hence both have constant speeds only the time span for snail is increased which gives more distance it doesn't means that it had covered more distance.

i hope it will help you!

4 0
3 years ago
The hypotenuse of a right triangle measures 10 inches, and the side opposite to ∠θ, one of the non-right angles, is 5 inches lon
NISA [10]
The measure of angle theta is 30 degrees. 

This is a 30-60-90 triangle where the short leg is half that of the hypotenuse. The short leg is opposite the smallest angle 30 degrees. 

You can use trig to find that
sin(angle) = opposite/hypotenuse
sin(theta) = 5/10
sin(theta) = 0.5
theta = arcsin(0.5)
theta = 30 degrees
7 0
3 years ago
Consider the equation:
Alenkasestr [34]

Answer:

the equation is not correct....

well, it should look sth. like (x+or- number)^2=number

5 0
3 years ago
Which figure shows how a shape can be rotated about an axis to form the given object?
WARRIOR [948]

Answer:

Option 4 is your answer.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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