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SOVA2 [1]
4 years ago
6

1) -4.2 = y - 1.8 i don’t know the answer need help

Mathematics
2 answers:
Dovator [93]4 years ago
5 0

Answer:

if your asking for what y is, y = -2.4

Step-by-step explanation:

anastassius [24]4 years ago
4 0

Answer:

y - 1.8 = -4.2

y = -2.4 is the solution

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Raise the quotient of y and 5 to the 2nd power
mojhsa [17]

Answer:

I'm guessing y is numerator and 5 is denominator. so y^2/25

Step-by-step explanation:

so if you have the fraction y/5 and you need to square it or raise to the second power you get (y/5)^2. now using the properties of exponents when you get a fraction and need to raise it to a power you square the denominator and numerator which gets you y^2/25. now let's check if it works we can use 5 for y so (5/5)^2 is equal to 25/25 = 1. or (10/5)^2 which is 2^2 = 4. or 100/25 which is 4. so the equation works for the expression.

5 0
3 years ago
Which function represents the exponential function f(x) = 3x after a vertical stretch by a factor of 8 and a reflection across t
irina1246 [14]

Answer:

g(x)=-8(3^x)

Step-by-step explanation:

Given: f(x)=3^x

Multiply by 8: f(x)=8(3^x)

Negate function: g(x)=-8(3^x)

5 0
3 years ago
If a linear relationship is proportional, what is always true about its graph?
Leya [2.2K]

Answer:

The answer is proportional. Hope it helps!

8 0
3 years ago
Read 2 more answers
What’s the answer to this
KonstantinChe [14]

Answer:

C

Step-by-step explanation:

  • (a+b)² = a² + 2ab  + b²
  • example : (5+2)² = 5² + 2.5.2 + 2²  = 49

9x² + 6x + 1

9x²  = (3x)²

1 = 1²

6x = 2.3x.1

So => 9x² + 6x + 1 => <em>(3x + 1)² </em>

Hope this helps ^-^

5 0
4 years ago
The quarterly returns for a group of 51 mutual funds are well modeled by a Normal model with a mean of 7.4​% and a standard devi
Wittaler [7]

Answer:

A) x ≥ 0.074; B) x ≥ 0.108; C) x ≤ 0.006; D) 0.04 ≤ x ≤ 0.108

Step-by-step explanation:

68% of data will fall within 1 standard deviation of the mean; 95% of data will fall within 2 standard deviations of the mean; and 99.7% of data will fall within 3 standard deviations of the mean.

Breaking this down, we find that 34% of data fall from the mean to 1 standard deviation above the mean; 13.5% of data fall from 1 standard deviation above the mean to 2 standard deviations above the mean; 2.35% of data fall from 2 standard deviations above the mean to 3 standard deviations above the mean; and 0.15% of data fall above 3 standard deviations above the mean.

The same percentages apply to the standard deviations below the mean.

The highest 50% of data will fall from the mean to the end of the right tail.  This means the inequality for the highest 50% will be x ≥ 0.074, the mean.

The highest 16% of data will fall from 1 standard deviation above the mean to the end of the right tail.  This means the inequality for the highest 16% will be x ≥ 0.074+0.034, or x ≥ 0.108.

The lowest 2.5% of data will fall from 2 standard deviations below the mean to the end of the left tail.  This means the inequality for the lowest 2.5% will be x ≤ 0.074-0.034-0.034, or x ≤ 0.066.

The middle 68% will fall from 1 standard deviation below the mean to 1 standard deviation above the mean; this means the inequality for the middle 68% will be

0.074-0.034 ≤ x ≤ 0.074+0.034, or

0.04 ≤ x ≤ 0.108

8 0
4 years ago
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