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dem82 [27]
2 years ago
9

Please can u do Evaluate − √81

Mathematics
2 answers:
Ahat [919]2 years ago
6 0

Answer:

-9

Step-by-step explanation:

hope this helps

Scilla [17]2 years ago
4 0

Answer:

-9

Step-by-step explanation:

-\sqrt{81} = -x^2\\-\sqrt{81} = -9^2

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The population of Luis’s city in 2005 was 7400 and the population in 2010 was 9000. Let x represent the number of years since 20
podryga [215]

Answer:

The linear equation is;

y = 320x + 7400

Step-by-step explanation:

Here, we want to write a linear equation that represents the population y at a year since 2005

To write this, we need points

Initially, we have (0,7400)

Since the difference between 2005 and 2010 is 5, the second point will be (5,9000)

Mathematically, we can get the slope as follows;

m = (y2-y1)/(x2-x1) = (9000-7400)/(5-0) = 1,600/5 = 320

The equation of the line can be represented using the general form as;

y = mx + b

where m is 320 and b is unknown

So we have the equation as;

y = 320x + b

we need to get b

To get b, we can use any point

let us use the point (0,7400)

substituting this;

7400 = 320(0) + c

c = 7400

so the equation is;

y = 320x + 7400

4 0
2 years ago
If there are 7 bolts in a widget and 6 widgets in an appliance, how many bolts are in 20 appliances?
sweet [91]
A single appliance has 6 widgets, and a widget has 7 bolts. Therefore, you need to multiply 6 by 7 to find the number of bolts in a single appliance.

6 x 7 = 42

Now that you know the number of bolts in an appliance, you can find the number of bolts in 20 appliances by multiplying 42 by 20.

42 x 20 = 840

Hence, there are 840 bolts in 20 appliances.

5 0
3 years ago
simon sold 72 packages of popcorn. there are 9 packages in each box. if he has delivered 27 packages,how many boxes does Simon h
givi [52]
72-27 = 45
\\ 45/9 = 5
\\\boxed {5 \ boxes}
4 0
3 years ago
Read 2 more answers
Identify the range of the function shown in the graph.
MAVERICK [17]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the plots and graphs.

Since, the x axis varies from -infinite to +infinite,

here, the y totally varies from -5 to +5,

hence, the option B.) is correct.

===>

- 5 \leqslant y \leqslant 5

3 0
2 years ago
Objective 4.3Perform basic mathematical tasks in a spreadsheet.34.Alexander lends some money to Niraj. Alexander maintains a wor
murzikaleks [220]

Answer:

A. Auto Sum

Step-by-step explanation:

In a spread sheet, if there are so many entries in form of numbers, whether in form of row or a column, it might be a pain staking job to sum all them individually. In spread sheet, the best option is to perform auto sum option, which as shown by its name, will add up all the entries given and produce the answer.

Now in given options of the question, auto correct, auto summarize and auto format are not usable because all of these options will either summarize or provide average or perform formatting, as they are not mathematical functions since, Alexander wants to add up all the amount he lent to Niraj, which means a mathematical task, so auto sum, as a mathematical command is best option.  

8 0
3 years ago
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