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Ede4ka [16]
3 years ago
13

Superman needs to save Lois from the clutches of Lex Luthor. After flying for 8 seconds, he is 1716 meters from her. Then at 18

seconds he is 1236 meters from her. What is Superman's average rate?
Mathematics
1 answer:
lukranit [14]3 years ago
5 0
To find the rate, you need to divide the change of distance by the change of time

(1716-1236)/(18-8)
=480/10
=48

Therefore, his rate is 48m/s
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What is 90 is exponential form?<br> 2^__ * 3^__ * 5^__
Sloan [31]
90/2=45
45/3=15
15/3=5


90=2*3*3*5=2¹*3²*5¹
3 0
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joe puts $790.00 into a savings account that pays 5.5% simple interest. he leaves the money in his account for two years.
Dmitrij [34]

Answer: $879.29


Step-by-step explanation:

790(1.055)^2

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Which expression represents the<br>statement "the product of 3 less than a<br>number and 5"}​
yan [13]

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5(x-3)

Step-by-step explanation:

5 0
3 years ago
Pls help me .question no 14
Alex_Xolod [135]

Question 14, Part (i)

Focus on quadrilateral ABCD. The interior angles add to 360 (this is true for any quadrilateral), so,

A+B+C+D = 360

A+90+C+90 = 360

A+C+180 = 360

A+C = 360-180

A+C = 180

Since angles A and C add to 180, this shows they are supplementary. This is the same as saying angles 2 and 3 are supplementary.

==================================================

Question 14, Part (ii)

Let

x = measure of angle 1

y = measure of angle 2

z = measure of angle 3

Back in part (i) above, we showed that y + z = 180

Note that angles 1 and 2 are adjacent to form a straight line, so we can say

x+y = 180

-------

We have the two equations x+y = 180 and y+z = 180 to form this system of equations

\begin{cases}x+y = 180\\y+z = 180\end{cases}

Which is really the same as this system

\begin{cases}x+y+0 = 180\\0+y+z = 180\end{cases}

The 0s help align the y terms up. Subtracting straight down leads to the equation x-z = 0 and we can solve to get x = z. Therefore showing that angle 1 and angle 3 are congruent. We could also use the substitution rule to end up with x = z as well.

4 0
3 years ago
What is happening to this graph when the x values are between -1 and 1
Amiraneli [1.4K]
It is decreasing, since the y-value is going down.
3 0
3 years ago
Read 2 more answers
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