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RideAnS [48]
3 years ago
13

Evaluate the expression if x = –8, y = 7, and z = –11. x – z

Mathematics
1 answer:
hichkok12 [17]3 years ago
3 0

Answer:

3

Step-by-step explanation:

You plug it in.

X-Z when everything is plugged in is -8-(-11)

A negative minus a negative equals a positive.

Your answer is 3.

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Math sequence- pls help
Sonbull [250]

Answer:

Geometric sequence.

Step-by-step explanation:

Simply defined, a complex sequence is a set of numbers in a sequence, whose numbers include imaginary numbers. In essensce, not all numbers in a complex sequence are real numbers.

A geometric sequence is a sequence in which each number must be multiplied by a number (referred to as the common ratio) to attain the next value in the sequence.

An arithmetic sequence is a sequence of numbers in which one has to add a value to the previous number to attain the next number.

A simple sequence can be defined as a pattern of numbers, such as a list of multiples.

In the given sequecne:

3, 9, 27, 81, 243

One can see that each element is three times the last. Diving any two consecutive elements (elements next to each other) will result in the numerical value of (3). Therefore this is a geometric sequence since it fits all of the criteria of a geometric sequence and even has a common ratio of (3).

3 0
3 years ago
Read 2 more answers
Express as a trinomial.<br> (x−8)(2x+9)
Tomtit [17]
Basically expand
use FOIL (a way to remember distributive property)
first outer inner last
that is th eorder to multiply them
First: x times 2x=2x²
Outer: x tmes 9=9x
Inner: -8 times 2=-16x
last: -8 times 9=-72
add them

2x²+9x-16x-72
2x²-7x-72
4 0
3 years ago
16. PHYSICS The formula h = 1201 - 16t2 gives the height h in feet of an object 1 seconds after it is shot upward from
Murrr4er [49]
<h3><u>Question:</u></h3>

The formula h = 120t-16t^2 gives the height h in feet of an object t seconds after it is shot upward from Earth's surface with an initial velocity of 120 feet per second. What will the height of the object be after 6 seconds?

<h3><u>Answer:</u></h3>

The height of object after 6 seconds is 144 feet

<h3><u>Solution:</u></h3>

<em><u>The formula that gives the height of an object is:</u></em>

h = 120t - 16t^2

Where,

h is the height in feet and t is the time in seconds

To find: height of the object be after 6 seconds

To find the height of the object be after 6 seconds, substitute t = 6

h = 120 \times 6 -16(6)^2\\\\h = 720 - 16 \times 36\\\\h = 720 - 576\\\\h = 144

Thus height of object after 6 seconds is 144 feet

3 0
3 years ago
What is greater or are they equal<br> 1. 8.13 or 8.4<br> 2. 0.004 or 0.05<br> 3. 0.4repeating or 0.4
nignag [31]

Answer:

Step-by-step explanation:

8.13<8.4

.004<.05

.4 repeating>.4

4 0
3 years ago
Find the ratio of the radio of two circles if their ratio of their areas is 4:9
kiruha [24]
2/3 as \pi  r^{2} / \pi  R^{2}  =4/9 GIVEN   SO r/R= \sqrt{4} / \sqrt{9} &#10;

6 0
3 years ago
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