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SpyIntel [72]
3 years ago
9

Evaluate Each Expression :) only 5 problems.

Mathematics
1 answer:
STatiana [176]3 years ago
6 0

Answer: Im going left to right btw

1) 27

2) 66

3) 28

4) 8

Exit Ticket

18

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2. Which sign makes the statement true?<br>00w​
Furkat [3]

Answer:

4/5 is greater than 3/8, so this sign: >

3 0
3 years ago
Read 2 more answers
Superman needs to save Lois from the clutches of Lex Luther. After flying for 15 seconds, he is 2100 meters from her. Then at 18
posledela

Part A

x = time in seconds that have gone by

y = distance in meters Superman is away from Lois

"After flying for 15 seconds, he is 2100 meters from her" means we have the point (x,y) = (15, 2100)

"at 18 seconds he is 1980 meters from her" tells us we have a second point (x,y) = (18,1980)

--------

Find the slope of the line through these two points

m = (y2-y1)/(x2-x1)

m = (1980-2100)/(18-15)

m = (-120)/(3)

m = -40

The slope is -40 which means Superman is getting 40 meters closer each second. I.e, the distance is dropping 40 meters per second

--------

Use one of the points and the slope to find the y intercept b

y = mx+b

2100 = (-40)*15 + b

2100 = -600 + b

2100+600 = b

b = 2700

This is the starting distance Superman is away from Lois

--------

Since m = -40 and b = 2700, we know the y = mx+b equation becomes y = -40x+2700.

Replace x with s, replace y with m. We now have m = -40s+2700

---------

<h3>Final Answer:  m = -40s+2700</h3>

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

Part B

Plug s = 6 into the equation we found for part A. Then simplify.

m = -40s+2700

m = -40*6+2700

m = -240+2700

m = 2460

---------

<h3>Final Answer: 2460 meters</h3>
7 0
2 years ago
Solve for x. 3x+2=38
SpyIntel [72]
Subtract the two over to cancel it out
3x=36
then divide by 3 to get an answer of
x=12
8 0
3 years ago
Read 2 more answers
Does a triangle with side lengths 10, 49.5, and 50.5 form a right triangle ?
IRINA_888 [86]

Answer:

yes

Step-by-step explanation:

Use Pythagorean Theorem:

10² + 49.5² = 50.5² ??

100 + 2450.25 = 2550.25

2550.25 = 2500.25

8 0
3 years ago
Help pls I don't understand
Oliga [24]

Answer:

me too a I don't understand

5 0
2 years ago
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