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3 years ago

Evaluate 2x + 5 - 10 when x = 12

Mathematics

2 answers:

musickatia [10]3 years ago

8 0

Answer:

Step-by-step explanation:

Naddika [18.5K]3 years ago

4 0

The answer is 19=
2 (12)+5-10= 24+5-10=19

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Take some time to fill in your notes, the area that is not shown in this video. Fill in the table with the values you think are

joja [24]

The x-values are the heartbeat(s) and the y-values are the time(s)

<h3>How to determine the x and y values?</h3>

The variables are given as:

Time(s) and Heartbeat(s)

As a general rule, the action that is being done is the independent variable.

The action here is the heartbeat.

So, the x-values are the heartbeat(s) and the y-values are the time(s)

A possible value of this is;

x = 100, y = 60 seconds

So, the ordered pair is (100,60)

When represented as ratio, we have;

Ratio = 60/100

Simplify

Ratio = 0.6 heartbeat per second

Read more about ordered pairs at:

brainly.com/question/8406931

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8 0

1 year ago

Solve by elimination <br> X - 6y + 2z = 5<br> 2x-3y+z=4<br> 3x + 4y - z = -2

Vesnalui [34]

Answer:

x=1

y=-3

z=-7

Step-by-step explanation:

6 0

2 years ago

Find the area of the kite

Elanso [62]

For this case we have that the area of the kite is given by the area of two triangles, the triangles share the same base of 3 + 3 = 6 meters and one has height of 2m and the other height of 4m.

So, the total area is given by:

$A = \frac {1} {2} * 6 * 2 + \frac {1} {2} * 6 * 4\\A = \frac {1} {2} 12+ \frac {1} {2} *24\\A = 6 + 12\\A = 18$

Thus, the area of the kite is $18m ^ 2$

ANswer:

$18m ^ 2$

3 0

3 years ago

9 A rectanglar ground is 22m long and 13m broad. Find its perimeter and lenghth of wire to fonce it around 3 times.

Reptile [31]

Answer:

Step-by-step explanation:

<h3><u>Given</u>:</h3>

Length = 22m

Breadth = 13m

Perimeter of the ground = ?

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

1st answer-

Perimeter = 2(l + b)

= 2(22 + 13)

= 70m

2nd answer-

Length of wire needed to fence around the ground = 70m * 3

= 210m

PLS mark as brainliest!!

8 0

2 years ago

Below is a diagram of a rabbit tunnel in the shape of a triangular prism.

Sergio [31]

Answer: 412.5cm cubed

Step-by-step explanation:

Volume of a prism: area of base ( in this case it’s the triangle) times the height

First: half x 90 x 120 = 165

Then times the height

So, 164 x 2.5 = 412.5

3 0

2 years ago