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navik [9.2K]
3 years ago
10

Skskskskskssksk!!!!!!11 HELP PLEASE

Mathematics
1 answer:
salantis [7]3 years ago
7 0

Answer:

-8.21

Step-by-step explanation:

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Someone help me please !
Artist 52 [7]

AE x BE = DE x CE

6x5 = 30

6 x DE = 30

DE = 30/6 =5

DC = DE +CE = 5+6 =11

Answer is C) 11

8 0
4 years ago
What is the slope of a line perpendicular to the line whose equation is y= -2/3x -5
SCORPION-xisa [38]

Answer:

3/2

Step-by-step explanation:

Finding the perpendicular line to a given line is easy. Find the slope (m) in the equation (directly left to the variable, x). Flip the fraction (or set it over 1 if a whole number), and change the sign to the opposite.

In this case, the perpendicular line's slope will be 3/2.

~

3 0
4 years ago
A cyclist rides down a long straight road at a velocity (in m/min) given by v(t)=400-20t, for 0≤t≤10, where t is measured in min
Naya [18.7K]

Answer:

A. 1,500m

B. 2000m

C. 1875m

Step-by-step explanation:

A. Here, we simply substitute the value of t in the equation.

t = 5min

V(t) = 400 - 20t

= 400 - 20(5)

= 400 - 100 = 300m/min

Now we know that distance = speed * time = 300 * 5 = 1,500m

2. Substitute t = 10

V = 400 - 20(10) = 400 - 200 = 200m/min

Distance = speed * time = 200 * 10 = 2000m

3. Here we need to calculate time

Rearranging the equation:

20t = 400 - V(t)

20t = 400 - 250

20t = 150

t = 150/20 = 7.5min

Distance traveled = 250 * 7.5 =1875m

7 0
3 years ago
The area of a square garden is shown. How long is each side of the garden? A=121ft^2
polet [3.4K]
The answer is 30.25ft
8 0
3 years ago
Which statements are true about the graph of the system of linear inequalities? Select two options. y > 3x – 4 y < One-hal
Liono4ka [1.6K]

Answer:

The first and third option.

Step-by-step explanation:

If you put both inequalities in Desmos (a graphing calculator website), it should make sense.

5 0
3 years ago
Read 2 more answers
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