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Anestetic [448]
3 years ago
8

Help please I will mark brainliest

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
5 0
40° snnsdndnxnnxndndndnndndndndndjdjjd
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$6,000 is invested in two different accounts earning 3% and 5% interest at the end of one year to two accounts earn $220 in inte
Svetradugi [14.3K]
My answer: $2000 were invested at 5%

Let x amount of money was invested at 5% and (6000-x) amount was invested as 3%
6 0
2 years ago
Find all real values of x such that f(x) = g(x) <br>for f (x) = x^2 + 1 g(x) = 3x - x^2​
gogolik [260]
cant figure it out yet i’ll
8 0
3 years ago
2y+2y+4y^3+4-3y^3+4+y​
RUDIKE [14]

Answer:

y^3 + 5y + 8

Step-by-step explanation:

Collect like terms

4y^3 - 3y^3 + 2y + 2y + y + 4 + 4

= 1y^3 + 5y + 8 OR y^3 + 5y + 8

4 0
3 years ago
Read 2 more answers
Factor completely x2 + 20x − 36.
vodomira [7]

Answer:

Prime

Step-by-step explanation:

x² + 20x − 36

You must find a pair of numbers that multiply to give -36 and add to give +20.

The likely candidates are 2 and 18, and they must have opposite signs to give a negative product.

+2 × (-18) = -36; +2 + (-18) =   -16

-2 ×   18  = -36;  -2 +     8   = +16

Neither combination gives +20 as the sum.

The expression can't be factored with rational numbers.

The expression is prime.

5 0
3 years ago
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
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