Write y=2x^2+8x+5 in vertex form. Please

Answers

Answer 1

Answer: $y=2x^2+8x+5\n y=2(x^2+4x+(5)/(2))\n y=2(x^2+4x+4-(3)/(2))\n y=2((x+2)^2-(3)/(2))\n y=2(x+2)^2-3$

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2x + 3y = 15x + y = 6
The average high temperature in a town for the month of July is 36.71 C. One day in July the temperature reached a record high of 39.52 c. How much higher is the record high temperature than the average high temperature?
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can anyone solve 4x^2 + 12x - 40 ? you would have to find what multiplies to get -40 but adds to get 12, but you do something with th 4x^2 as well

Covert 3/8, 2/9, 4/7, and 1/5 to decimal

Answers

Answer:

3/8=0.375

2/9=0.223

4/7=0.571

1/5=0.20

A farmer is fencing off his field. A diagram is given and shows how the field has been divided into two regions. The area ofregion one is 950 sq ft. The area of region two is 4845 sq ft. Find the perimeter around the entire field
15x - 45
4.X-10
2
3x
a 150 ft
b. 224 ft
С. 176 ft
d. 384 ft

Answers

Answer:

The answer is D.384

Step-by-step explanation:

Log3x - log3(x − 8) = 2?????

Answers

Answer:To solve the equation log3x - log3(x - 8) = 2, we can use the properties of logarithms to simplify and solve for x.

First, let's apply the quotient rule of logarithms. The quotient rule states that log(base a)(b) - log(base a)(c) = log(base a)(b/c).

Using this rule, we can rewrite the equation as log3(x / (x - 8)) = 2.

Next, let's rewrite 2 as a logarithm. The logarithmic form of 2 is log(base a)(b) = c, where a^c = b. In this case, a^c = 3^2 = 9. Therefore, we can rewrite the equation as log3(x / (x - 8)) = log3(9).

Now that the bases are the same, we can set the arguments of the logarithms equal to each other. Therefore, x / (x - 8) = 9.

To solve for x, we can multiply both sides of the equation by (x - 8) to eliminate the fraction. This gives us x = 9(x - 8).

Expanding the right side of the equation, we get x = 9x - 72.

Next, we can subtract 9x from both sides of the equation to isolate x. This gives us -8x = -72.

Dividing both sides of the equation by -8, we find that x = 9.

Therefore, the solution to the equation log3x - log3(x - 8) = 2 is x = 9.

Step-by-step explanation:

A quantity m varies jointly with p and r. If m is 1, p is 2, and r is 4. What is the constant of variation?1/8
1/2
2
8

Answers

m vaires jointly as with p and r
m=kpr
m=1
p=2
r=4
sub
1=k*2*4
1=k*8
divide both sides by 8
1/8=k

answer is contatnt is 8

Answer:

A) 1/8

Step-by-step explanation:

Given:

A quantity "m" varies jointly with "p" and "r".

Now we have to form the equation.

m = kpr, where "k" is the constant.

Now we have to plug in the given values; m =1, p = 2 and r = 4 and find the value of k.

1 = k.2.4

1 = 8k

Divide both sides by 8, we get

8k/8 = 1/8

k = 1/8.

What is the volume of a sphere with the radius of 2 cm?

Answers

V=43πr3=43·π·
3≈33.51032 =33.51 is the answer

Short Answer: 33.5cm3.

Longer Answer: The formula for volume of a sphere is ( 4 * pi * radius^3) / 3. So, when the radius is 2cm, then it would be ( 4 * 3.14 * 2^3) / 3. We have to do the exponents first, so 2 ^ 3 is 2 * 2 * 2 = 8. Then, we solve the rest of the expressions within the bracket, which will give us ( 100.48 ) / 3, and that equals 33.5

The points (-2, 4) and (1,r) lie on a line with slope 3. Find the missing coordinate r.

Answers

Answer:

-9

Step-by-step explanation:

Slope = (y2 - y1)/(x2 - x1)

(r - 11)/(4 - (-1)) = (r - 11)/5

So, (r - 11)/5 = -4

r - 11 = -20

r = -9

I dont know wht

way you are doing this but hope it helps

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