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noname [10]
2 years ago
7

Find the length of the base indicated for each trapezoid

Mathematics
1 answer:
evablogger [386]2 years ago
5 0
Explain why dosea mountain climber needs an oxygen supply at very high altitude even through the air still contains 21% oxygen
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PLSSS HELPPP<br> MARKING BRAINLIST !!!!!!
ioda

Answer:

<em>First Option; 40,</em>

<em>Second Option; x = 3,</em>

<em>Third Option; x = - 5,</em>

<em>Fourth Option; x = 0</em>

Step-by-step explanation:

Given the expression x^2 + 3 * ( x + 4 ), where x = 4;

x^2 + 3 * ( x + 4 ) ⇒ Substitute the value of 4 in replacement of x,

( 4 )^2 + 3 * ( 4 + 4 ) ⇒ Add the terms in ( ), taking 4^2 at the same time,

16 + 3 * ( 8 ) ⇒ By PEMDAS, multiply 3 by 8 first,

16 + 24 ⇒ And now add the remaining terms,

<em>Solution; 40</em>

This next equation is given to be 5 * ( 2x - 1 ) = 25, where we must solve for x;

5 * ( 2x - 1 ) = 25 ⇒ Distribute the 5 to the terms in ( ),

10x - 5 = 25 ⇒ Add 5 on either side of the equation,

10x = 30 ⇒ Divide 10 on either side of equation,

<em>Solution; x = 3</em>

Here we must solve for the value of x provided the equation 6x + 4 - x = 2x - 11;

6x + 4 - x = 2x - 11 ⇒ Add 11 on either side,

6x + 15 - x = 2x ⇒ Add x on either side of equation,

6x + 15 = 3x ⇒ Subtract 6x on either side,

15 = - 3x ⇒ Divide 3 on either side,

<em>Solution; x = - 5 </em>

Now we are given the equation 4 - ( 3x + 4 ) = - 9x, solving for the value of x;

4 - ( 3x + 4 ) = - 9x ⇒ Distribute the - 1 to all terms in ( ),

4 - 3x - 4 = - 9x ⇒ Add 3x on either side of equation,

4 - 4 = - 6x ⇒ Subtract 4 from 4,

0 = - 6x ⇒ Divide - 6 on either side,

<em>Solution; x = 0</em>

4 0
3 years ago
Plz help ASAP matswatch
vaieri [72.5K]

Answer:

Step-by-step explanation:

4 0
3 years ago
Please right no link or bot
Leya [2.2K]

Answer:

36

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Can anyone Help please.
Igoryamba

Answer:

D

Step-by-step explanation:

The remaining material can be calculated as

volume of larger cube - volume of smaller cube

= a³ - b³ ← difference of cubes which factors in general as

= (a - b)(a² + ab + b²) → D

3 0
3 years ago
Area of square floor is 100 square centimeters,and the scale of the drawing is 1 centimeter:2ft,what is the area of the actual f
Taya2010 [7]
100 square centimeters means the dimensions are 10x10
but the actual floor will be 1cm:2ft
so 10cm=20feet
making the dimensions 20feetx20feet
the area of the actual floor is 400 feet
4 0
3 years ago
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