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Tom [10]
3 years ago
11

Shawna and lea left the mall at the same time . They traveled in opposite directions. Lea traveled 30 mph faster that Shawna. Af

ter five hours they were 500 mi. Apart. Find Shawnas speed
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:88

Step-by-step explanation:

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Give an example of a quadratic function that has no real root but has 2 complex solutions.
Nimfa-mama [501]

Step-by-step explanation:

An example : x² + 1 = 0....

7 0
3 years ago
samantha threw an apple out of a window from the tenth floor of her appartment building. the equation y = -16t^2+120 can be used
ella [17]
Answer:
time taken = 2.74 seconds

Explanation:
We are given that:
y = -16t² + 120 models the situation where:
y is the floor number
t is the time taken for the apple to hit the ground

We are also given that the floor number (y) is 10. Therefore, all we have to do is substitute with y in the above equation and solve for the time t as follows:
y = -16t² + 120
10 = -16t² + 120
120 - 10 = 16t² 
110 = 16t²
t² = 110/16
t² = 6.875
either t = 2.74 seconds ..........> accepted
or t = -2.74 seconds .........> rejected as time cannot be in negative

Hope this helps :)
5 0
3 years ago
Pls help your going to help my dead soulll
deff fn [24]
0.875 seconds
Can you give me brainliest please
4 0
3 years ago
What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9?
Maksim231197 [3]
Hello,
 the first step should be to distribue:
-4(3-5x)= -12+20x

Teh resolution may be:

-4(3-5x)>=-6x+9
==>-12+20x>=-6x+9
==>20x+6x>=9+12
==>26x>21
==>x>=21/26

But an other way may be used:

-4(3-5x)>=-6x+9
==>3-5x<= -6x/(-4)+9/(-4)
==>-5x-3/2 x<=-9/4 -3

==>-13/2 x <=-21/4

==>x>= -21/4 *(-2/13)
==>x>=21/(2*13)
==>x>=21/26

5 0
3 years ago
Read 2 more answers
The area of the shape is 54 cm2.<br> Find the value of r.
Bond [772]
Radius is half the circumference
c= 2(square root) pieA
4 0
2 years ago
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