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3 years ago

What technology format is used to generate seven random numbers between 1 and 650

Mathematics

1 answer:

zepelin [54]3 years ago

4 0

Answer:

you can use siri or google or alexa. Just say " pick 7 numbers from 1-650 "

Step-by-step explanation:

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A forester wishes to predict the volume (in cubic feet) of usable lumber in a certain species of tree using the height (in feet)

alex41 [277]

Answer: The response variable = Volume

and explanatory variable(s) in this study are: Height and Diameter.

Step-by-step explanation:

Important definitions:

The explanatory variable is a type of independent variable manipulated by the experimenter for the ongoing experimental study.
The response variable is a type of dependent variable which depends on the explanatory values provided by the experimenter.

Given: A forester wishes to predict the volume (in cubic feet) of usable lumber in a certain species of tree using the height (in feet) and diameter (in inches) of the trees.

Here, Volume directly depends upon the height and diameter of the tree.

Also, forester ( Experimenter) wants to predict volume by cutting tree that means it is an response variable and it depends on height and diameter , so height and diameter are explanatory variable.

Hence, The response variable = Volume

and explanatory variable(s) in this study are: Height and Diameter.

7 0

3 years ago

PLEASE HELP!!!!!!!!!

kolezko [41]

Let $x_1 , x_2$ be the roots of the equation $3x^2-5x-7$ . By the Viet theorem you have that $\left \{ {{x_1+x_2=- \frac{5}{3} } \atop {x_1x_2= \frac{-7}{3} }} \right.$ .

For the equation $x^2+bx+c = 0$ you'll have that $c=(x_1+2)(x_2+2)=x_1x_2+2(x_1+x_2)+4=\frac{-7}{3}+2\cdot(- \frac{5}{3} )+4$
That is $\frac{-7}{3}- \frac{10}{3} +4=- \frac{5}{3}$ .

Answer: $- \frac{5}{3}$

4 0

3 years ago

Last semester, Aaron earned an average score of 90 points on math tests. So far this semester, his average score is 10% lower. W

melamori03 [73]

Answer:

He average for this semester so far is 81 points.

Step-by-step explanation:

Since his score is 10% lower this semester than last semester, then he present score is 100% from the prior semester minus 10%, which equals to 90% of the previous semester. In order to calculate that percentage we can use a rule of three as shown below:

90 points -> 100%

x points -> 90%

100*x = 90*90

x = 8100/100 = 81

He average for this semester so far is 81 points.

5 0

3 years ago

Read 2 more answers

Chelsea, Jordan and Maddy all work at the same clothing store. Chelsea works every other day. Jordan works every fourth day and

cestrela7 [59]

After 20 days Chelsea, Jordan and Maddy will be working together !

<u>Step-by-step explanation:</u>

Here we have , Chelsea, Jordan and Maddy all work at the same clothing store. Chelsea works every other day. Jordan works every fourth day and Maddy works every fifth day. Today they all worked together. We need to find How many days will it be until they work together again . Let's find out:

According to given scenario we have , Chelsea works every other day i.e. in 1 day. Jordan works every fourth day i.e. in 4 days and Maddy works every fifth day i.e. in 5 days . In order to find How many days will it be until they work together again we will calculate LCM of all of the three people working days period i.e. 1 , 4 , 5 :

⇒ $1(4)(5)$

⇒ $20$

Since, LCM of all of the three people working days period i.e. 1 , 4 , 5 is 20 , Therefore , After 20 days Chelsea, Jordan and Maddy will be working together !

3 0

3 years ago

How do i solve the proportion 4/9=10/x

lapo4ka [179]

Answer:

x=45/2

Step-by-step explanation:

4/9=10/x

cross product

9*10=4*x

90=4x

x=90/4

simplify

x=45/2

8 0

3 years ago