3 years ago

Can you help solve this and provide work? -t (5t-7) =-5

1 answer:

5 0

-t(5t - 7) = -5
-1 -1
t(5t - 7) = 5
t(5t) - t(7) = 5
5t² - 7t = 5
5t² - 7t - 5 = 0
t = -(-7) ± √(-7)² - 4(5)(-5)
2(5)
t = 7 ± √49 - 4(-25)
10
t = 7 ± √49 + 100
10
t = 7 ± √149
10
t = 0.7 ± 0.1√149

You might be interested in

Is 1 1/2 greater than less than or equal to 16 in

BigorU [14]

Answer:

Less than

Step-by-step explanation:

3 0

3 years ago

An operator at the top of a lighthouse sights a sailboat. The point from which the sighting is made is 25 m above sea level. The

Aneli [31]

Answer:

141.78 m

Step-by-step explanation:

Let d = distance of boat from the base of the lighthouse

Tan 10 = 25/d

d tan 10 = 25

d = 25/tan 10

d = 141.78 m

4 0

3 years ago

Leyan bought 234 pounds of apples for $1.32 per pound, 112 pounds of peaches for $1.20 per pound, and some tomatoes, all from a

velikii [3]

Answer: See explanation

Step-by-step explanation:

I think your question isn't well written and that 234 was meant to be 2.34 and 112 was meant to be 1.12

Let the amount spent on tomatoes be x.

The information given in the question can then be used to form an equation as thus:

Apples + Peaches + Tomatoes = $9.63

(2.34 × $1.32) + (1.12 × $1.20) + x = $9.63

$3.0888 + $1.344 + x = $9.63

x = $9.63 - ($3.0888 + $1.344)

x = $9.63 - $4.4328

x = $5.1972

The amount spent on tomatoes will be $5.1972

8 0

2 years ago

Read 2 more answers

I need the answer please.

Anestetic [448]

2 1/4 = 9/4

(9/4)(8/5) = (9/1)(2/5) = 18/5 = 3 3/5 cups

5 0

3 years ago

Please help with this

gladu [14]

Answer: Y=-3x+5
Explanation:

6 0

3 years ago