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djverab [1.8K]
3 years ago
5

Factor the following equation2x^2-9x-5 ​

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0

Answer:

(2x +1    ) (x -5   )

Step-by-step explanation:

2x^2-9x-5 ​

(2x     ) (x   )

The factors of 5 are 1 and 5

One will be positive and one is negative, but which one

We want to get to -9 in the middle

2* -5 = -10 +1  = -9

(2x +1    ) (x -5   )

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Given that f(x) = x2 + 3x + 6 and g(x) = the quantity of x plus two, over three, solve for f(g(x)) when x = 1
MaRussiya [10]
Easy
f(g(1))
evaluate g(1) then plug thatin for x in f(x)
g(1)=(x+2)/3
g(1)=(1+2)/3
g(1)=1

f(g(1))=
f(1)=(1)^2+3(1)+6
f(1)=1+3+6
f(1)=10
f(g(1))=10
3 0
3 years ago
Read 2 more answers
I need help trying to figure this out I think I have and answer but I want to make sure.
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

The mean is calculated as

mean = \frac{frequency(midpoint)}{frequency}

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

Total frequency = 16 + x + 20 + 10 = 46 + x, thus

\frac{242+7x}{46+x} = 8.5 ( cross- multiply )

442 + 7x = 8.5(46 + x)

442 + 7x = 391 + 8.5x ( subtract 8.5x from both sides )

442 - 1.5x = 391 ( subtract 442 from both sides )

- 1.5x = - 51 ( divide both sides by - 1.5 )

x = 34

The missing frequency is 34

3 0
3 years ago
Asking for the equation
Novay_Z [31]

Answer:

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Step-by-step explanation:

7 0
2 years ago
PLEASE HELP WILL MARK BRAINLY
mash [69]

Answer:

250 girls

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

8 0
3 years ago
For brett's birthday his mother gave out colorful birthday hats that were cone shaped. the opening of the bottom of the hat was
nika2105 [10]
The volume of cone is calculated by the formula V= \frac{1}{3} \pi R^2H, where H is a height of cone and R is a radius of the bottom.
In your case, R=3 cm and R=7 cm. Then V= \frac{1}{3} \pi* 3^2*7= \frac{63\pi}{3} =21\pi.
Answer: The volume of candy is 21π.
4 0
3 years ago
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