How I solve x*x Please help 1) 2x 2) x^2 3) x(x+2) 4) x+2

1 answer:

8 0

It would be 2) x^2.

In this question, if you are having trouble, we could replace x with a number.

For example, x=5. Then, it would be 5 × 5 or 5^2.

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Please help me with this 7th grade question I need to pass this test or I fail

cupoosta [38]

Answer:

-3

Step-by-step explanation:

there is -7 on the right side, so to get -7 on the left, x would have to equal -3

(-3)2=-6 + (-1) =-7

6 0

3 years ago

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Student needs $1,000 in 4 years what mushy invest today if her investment earns 4% annual interest compounded quarterly

viva [34]

$\bf \qquad \qquad \textit{Future Value of an ordinary annuity}
\\\\
A=pymnt\left[ \cfrac{\left( 1+\frac{r}{n} \right)^{nt}-1}{\frac{r}{n}} \right]$

$\bf \qquad 
\begin{cases}
A=
\begin{array}{llll}
\textit{ amount}\\
\textit{already compounded}
\end{array}\to &
\begin{array}{llll}
1000
\end{array}\\
pymnt=\textit{periodic payments}\to &p\\
r=rate\to 4\%\to \frac{4}{100}\to &0.04\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, means 4 times}
\end{array}\to &4\\

t=years\to &4
\end{cases}$

solve for "pymnt"

5 0

3 years ago

If P = (-3,5), find the image

Serjik [45]

Answer:

the image of P is (-5,-3)

Step-by-step explanation:

formula for 90° counterclockwise is (-y,x)

therefore y will turn negative and x will remain the same

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3 years ago

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A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard devia

WITCHER [35]

Answer:

Upper P60 = 212.8

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 200, \sigma = 50$