Water is being pumped in a swimming pool at a constant rate. As water fills in the pool, the height of the water rises linearly. The following observations are shared:
• At 5:30 am, the depth of water is measured to be 1.4 feet.
• At 7:00 am, the depth of water is recorded to be 2.9 feet
If this linear pattern continues, what will the depth of the water be at 10:00 am?
2 A rectangle has a perimeter of 24 units. The length of the rectangle is
times 3 less than the width. What is the width of the rectangle?
A 3 units
B 4 units
C. 5 units
D. 6 units

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

answer

step-by-step explanation: