Hurry answer please !!!

Is the number below a perfect square how do you know 2 x 2 x 3 x 5 x 5

raketka [301]

Answer:

nope

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8 0

3 years ago

Abdul is riding on a bike course that is 80 miles long. So far, he has ridden 64 miles of the course. What percentage of the cou

hodyreva [135]

Answer:

80%

Step-by-step explanation:

Abdul is riding on a bike course

The bike course is 80 miles long

So far he has rifden 64 miles of the course

Therefore the percentage of the course in which Abdul has ridden so far can be calculated as follows

= 64/80 × 100

= 0.8 × 100

= 80%

Hence Abdul has ridden 80% of the course

7 0

3 years ago

Meaning of variable point

Firdavs [7]

Answer:

A system of numeration in which the location of the decimal point is indicated by a special character at that position.

Step-by-step explanation:

6 0

3 years ago

Meg plotted the graph below to show the relationship between the temperature of her city and the number of sweaters sold at a st

Luda [366]

Solution:

The description about the graph is:

Graph shows 0 to 30 on x axis at increments of 5 and 0 to 12 on y axis at increments of 1. The label on the x axis is Temperature in degree C, and the label on the y axis is Number of Sweaters Sold. Dots are made at the ordered pairs 0, 12 and 2.5, 10 and 2.5, 11 and 5, 10 and 7.5, 9 and 7.5, 10 and 10, 7 and 12.5, 6 and 12.5, 8 and 15, 4 and 15, 7 and 17.5, 5 and 20, 1 and 20, 3 and 22.5, 9 and 25, 1 and 27.5, 1.

Part A: The relationship between the temperature of the city and the sale of sweaters in the city can be found by drawing the line of best fit.

If you will draw line through , (12.5,6) and (15,4), it will best represent line of best fit, because most of points on same and opposite side of line are equidistant from each other.

Equation of line passing through two points, $(x_{1},y_{1}),(x_{2},y_{2})is, \frac{y-y_{1} }{x-x_{1} } = \frac({y_{2} - y_{1}})({x_{2}-x{1} })$

Equation of line passing through (12.5,6) and (15,4) is given by

$\frac{y-6}{x-12.5} = \frac{6-4}{12.5-15}$

$2x-25=-2.5+15$

$2x+2.5y=40$

$20x+25y= 400$

$4x+5y=80$

Part B: Description of line of best fit

A line of best is the line which passes through all or some points or only through a single point, which describes the relationship between x and y values of data set. The line passes through (12.5,6), (15,4),and (7,10) that is three points.

(C) 4 x + 5 y=80

5 y= - 4 x +80

$y=\frac{-4x}{5}+16$

Slope $= \frac{-4}{5}$ , Y- intercept = 16

8 0

3 years ago

Suppose task B follows task A. The likelihood that a problem will occur with task A is 0.5, and the time to correct the problem

jasenka [17]

Answer:

The risk consequence of both activities is 1.6 months.

Step-by-step explanation:

We can define a randome variable D: total delay time for the project, and calculate its expected value.

This would be the risk consequence of both activities.

The expected delay time for the project is the sum of the expected delay for task A plus the expected delay for task B. It is assumed the likelihood of a problem in any task is independent of the other.

Then, each expected delay for a task is equal to the probability of a problem multiplied by the consequence (delay time).

$E(D)=E(D_a)+E(D_b)=p_aT_a+p_bT_b\\\\E(D)=0.5*2+0.2*3=1+0.6=1.6$

The risk consequence of both activities is 1.6 months.

6 0

3 years ago