All categories

3 years ago

Please help me this is a test

Mathematics

1 answer:

Pepsi [2]3 years ago

8 0

Answer:

B. 2

Step-by-step explanation:

For x = 2, w(x) = 3, t(x) = - 1

w(x) + t(x) = 3 + (-1) = 3 - 1 = 2

You might be interested in

The simple interest on an investment of $8000 for one year is $360.

elena55 [62]

I = PRT
$360 = $8000 x R X 1
$360 = $8000 X R
$360/$8000 X R /$8000
0.045 = R
R= 0.045 * 100
R = 4.5%

8 0

3 years ago

The mean is 10 <br>which team will have the greatest MAD?

lara31 [8.8K]

answer: Larger the MAD tells us that the ages of swimmer are far from the mean age. Thus means is not a relevant indicator for the data.

explonation:

We know that the mean absolute deviation (MAD) helps to know whether the mean of a data is a worthy indicator for the data values.

The larger the MAD tells us the values are spread out far from the mean .

Also, larger the MAD makes the mean less worthy as an indicator of the data elements within the data set.

6 0

2 years ago

Read 2 more answers

Given the following points, find the equation of the line. Then state the slope of a line

LenKa [72]

Answer:

Step-by-step explanation:

the slope is -3/2

equation: y=-3/2x +4

5 0

2 years ago

How to do number 17.

NikAS [45]

(x^6 - 4x^5 - 7x^3)/2x^3=x^3(x^3-4x^2-7)/2x^3= (x^3-4x^2-7)/2

6 0

3 years ago

Suppose X is the time it takes a randomly chosen clerical worker in an office to type and send a standard letter of recommendati

elixir [45]

Answer:

The chance that their average time is less than 9.5 minutes is 0.0094

Step-by-step explanation:

X is the time it takes a randomly chosen clerical worker in an office to type and send a standard letter of recommendation

We are given that X has a normal distribution

Mean $\mu$ = 10.5 minutes

Standard deviation $\sigma$ = 3 minutes

n = 50

We are supposed to find the chance that their average time is less than 9.5 minutes i.e. P(X<9.5 minutes)

Formula : $Z = \frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

$Z = \frac{9.5-10.5}{\frac{3}{\sqrt{50}}}$

Z = −2.35

Refer the z table for p value

p value=0.0094

So, P(X<9.5)=P(Z<−2.35)=0.0094

Hence the chance that their average time is less than 9.5 minutes is 0.0094.

8 0

2 years ago