3 years ago

What is the positive root of the equation x 2 + 5x = 150?

2 answers:

7 0

Move the 150 to the left to get x^2+5x-150=0
Then factor to (x+15)(x-10)=0
The roots are -15 and 10
The positive root is 10

svlad2 [7]3 years ago

3 0

The positive root is 10 since the other one i negative!!!

You might be interested in

E = MV^2 ÷ 2 + mgh, Make V Subject of the formula

Stels [109]

Answer:

$\red{ \bold{ V = \sqrt{\frac{2(E - mgh)}{M}}}}$

Step-by-step explanation:

$E = MV^2 ÷ 2 + mgh \\ \\ E - mgh = MV^2 ÷ 2 \\ \\ 2(E - mgh)= MV^2 \\ \\ \frac{2(E - mgh)}{M}=V^2 \\ \\ \sqrt{\frac{2(E - mgh)}{M}} = V \\ \\ \red{ \bold{ V = \sqrt{\frac{2(E - mgh)}{M}}}}$

4 0

3 years ago

Mrs. Smith bought 6.5 metres of lace. She used 1.3 metre to make a dress. She used the rest to make 4 cushions of the same size.

Vadim26 [7]

Bdbdhd dbdbdbd d did

5 0

2 years ago

Read 2 more answers

Factorise fully 72-2y^2

KiRa [710]

Answer: 2(y + 6)(-y + 6)

Step-by-step explanation: Factor 72 - 2y^2

-2y^2 + 72

= 2(y + 6)(-y + 6)

7 0

3 years ago

Read 2 more answers

In February of 2014, gas was about $3.37 per gallon. In February 2015, gas was about 2.25 per gallon. What is the percent decrea

Sveta_85 [38]

Answer:

I don't know if its right but $1. 11

5 0

2 years ago

What is the median of this set of data?<br>NA<br>66,51, 77, 68, 60, 75, 54, 80

vagabundo [1.1K]

The median is of this set of data is 67

8 0

2 years ago

Read 2 more answers