3 years ago

25 POINTS!!!!!

Mathematics

1 answer:

vfiekz [6]3 years ago

5 0

The Answer is what the person said above!! Have a nice day!!

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I need to slove −7x ^2 +x+9=−6x

guapka [62]

Answer:

1. if you are solving using the quadratic formula. the answer is in the first picture.

2. if you are looking to completing the square the answer is in the second picture.

Step-by-step explanation:

4 0

3 years ago

A weed called the raindrop vine is known for growing at a very fast rate. It can grow up to 0.75 feet per day. How fast in inche

viktelen [127]

R = rate of growth of raindrop vine = 0.75 feet/day

we know that : 1 feet = 12 inches

1 day = 24 hours

replacing the units accordingly in the above expression for rate of growth of raindrop vine

R = 0.75 (feet/day) (12 inches/1 feet) (1 day/24 hours)

R = (0.75 x 12 /24) (inches/hour)

R = 0.375 inches/hour

3 0

3 years ago

De las soluciones de la siguiente ecuación: x2 + 8x − 30 = 18? Cual es el numero de mayor valor Entre.

vekshin1

Answer:

The correct answer is "x = 4" and "x = -12".

Step-by-step explanation:

The given equation is:

⇒ $x^2+8x-30=18$

On subtracting "18" from both sides, we get

⇒ $x^2+8x-30-18=18-18$

⇒ $x^2+8x-48=0$

On applying factorization, we get

⇒ $x^2+12x-4x-48=0$

On taking common, we get

⇒ $x(x+12)-4(x+12)=0$

⇒ $(x-4)(x+12)=0$

⇒ $x-4=0$

$x=4$

or,

⇒ $x+12=0$

$x=-12$

4 0

3 years ago

I need these three solved. I have a lot of math to do. the directions say solve each system of equations using substitution. sho

alekssr [168]

Answer:

x + 2(x + 1) = 8 --> x = 2

y = 2 + 1 = 3

3(9 + 2y) + 5y = 20 --> y = -7/11

x = 9 + 2(-7/11) = 85/11

3(-1 - 2y) + 5y = -1 --> y = -2

x = -1 - 2(-2) = 3

6 0

3 years ago

Ten more than the quotient of a number and 3 is 12.

Ilya [14]

Answer:

Step-by-step explanation:

3 0

2 years ago