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Arturiano [62]
3 years ago
7

Simplify (-8z+4) + (7z-7)

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

Answer:

1. -1z-3

2. 4x+2

3. -y+11

4. 7a-22

Step-by-step explanation:

Not too sure about the last one

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0.8752x 78.56<br>3<br>0.00429 X 0.01​
Brums [2.3K]

Answer:

0.00294973268304

Step-by-step explanation:

8 0
3 years ago
A bus takes 45 minutes to travel 48 kilometres. What is its average<br>speed?<br>​
navik [9.2K]

Answer:

64km/h

Step-by-step explanation:

Average speed= 48km÷45 minutes

= 48km÷0.75h

= 64km/h

6 0
3 years ago
A
Tanzania [10]

Answer:

$45.50

Step-by-step explanation:

1. $65.00 ÷ 100 = 0.65

2. 0.65 x 30 = $19.50

3. $65.00 - $19.50 = $45.50

4 0
2 years ago
Terry is skiing down a steep hill. Terry's elevation, E(t), in feet after t seconds is given by E(t)=2600−50t.
lesya692 [45]

Answer:

Part 1) The equation tells us that Terry started at an elevation of 2,600 ft

Part 2) The elevation is decreasing by 50 feet each second

Step-by-step explanation:

we have

E(t)=2,600-50t

where

E(t) is Terry's elevation in feet

t is the time in seconds

Part 1) Find the E intercept of the equation

The E-intercept is the value of E when the value of t is equal to zero

so

For t=0

substitute

E(0)=2,600-50(0)

E(0)=2,600\ ft

therefore

The equation tells us that Terry started at an elevation of 2,600 ft

Part 2) Find the slope of the equation

we have

E(t)=2,600-50t

This is the equation of the line into slope intercept form

The slope m is equal to

m=-50\ ft/sec

The slope is negative, because is decreasing

therefore

The elevation is decreasing by 50 feet each second

6 0
3 years ago
PLEASE HELP MEEEEEEEEEEEEEE
kogti [31]

Answer:

D Line segments are the same and do not intersect

Step-by-step explanation:

They are parallell lines and are the same length

5 0
3 years ago
Read 2 more answers
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