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3 years ago

Simplify this expression | -25| x (84/21) +(-3) x (-6)

Mathematics

1 answer:

ladessa [460]3 years ago

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Let x,y and z three real numbers. write an algebraic expression to denote the product of z,x and y

nlexa [21]

The product of x, y and z would be x*y*z or we can simply write xyz without the asterisks. A product is the result of multiplying two or more numbers.

The order of multiplication does not matter. Example: 2*5 = 10 and 5*2 = 10

8 0

3 years ago

Write an equation for the exponential function represented in the table below.

Neko [114]

Answer:

$f(x)=-\frac{1}{2}(10^x)$

Step-by-step explanation:

Let the exponential function be $f(x)=a(b^x)$ .

When x=0, $f(0)=-\frac{1}{2}$

$-\frac{1}{2}=a(b^0)$

$a=-\frac{1}{2}$

The function now becomes $f(x)=-\frac{1}{2}(b^x)$

When x=1, f(1)=-5

This implies that:

$-5=-\frac{1}{2}(b^1)\\ \implies b=10$

Therefore the equation for the exponential function represented in the table below is $f(x)=-\frac{1}{2}(10^x)$

7 0

4 years ago

Read 2 more answers

Can someone please help me out with this question??

malfutka [58]

Answer:

6(4 + 3t)

Step-by-step explanation:

The greatest common factor of 24 and 18 is 6

Take out 6 from each term

24 + 18t

= 6(4 + 3t)

5 0

3 years ago

Read 2 more answers

A survey claims that the percent of an entire population that agrees with redeveloping the city park is likely between 49.1% and

kumpel [21]

Answer:

567 people were surveyed.

Step-by-step explanation:

Given:

A survey claims that the percent of an entire population that agrees with redeveloping the city park is likely between 49.1% and 57.5%.

Now, to find total people who were surveyed.

According to survey percent of population agrees between = 49.1% to 57.5%.

So, we need to find the error of margin:

$\frac{57.5\%-49.1\%}{2}$

$=\frac{8.4\%}{2}$

$=4.2\%.$

Let the number of people surveyed be $n.$

Now, to get the number of people surveyed:

$4.2\%=\frac{1}{\sqrt{n} }$

$\frac{4.2}{100}=\frac{1}{\sqrt{n} }$

$0.042=\frac{1}{\sqrt{n} }$

By cross multiplying we get:

$\sqrt{n}=\frac{1}{0.042}$

$\sqrt{n}=23.81$

Using square root on both sides we get:

$n=566.91.$

Approximately:

$n=567.$

Therefore, 567 people were surveyed.

7 0

3 years ago

A prism has a base of 32cm2 and a height of 5cm what is the volume?

uranmaximum [27]

Volume of prism: base area*h
base area: 32^2 =1024
height: 5
1024*5
=5120cm3
thanks

8 0

4 years ago