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Tcecarenko [31]
3 years ago
5

Help i forgot how to solve this

Mathematics
1 answer:
Ymorist [56]3 years ago
4 0

Answer:

A= 1/2 (b1 + b2)h

Step-by-step explanation:

A=area

b1 = base 1

b2 base 2

h = height

b1 = 24. b2= 12, h = 17

Substitute and solve!

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Find the values of x and y if (2x + y, 2) = (1, x - y). ​
m_a_m_a [10]

Answer:

We have, 2x+y=3 .......(1)

xy=1....(2)

In equation (2), we get

y=

x

1

..........(3)

y put in the equation (1)

2x+

x

1

=3

2x

2

+1=3x

2x

2

−3x+1=0

2x

2

−3x−1x+1=0

2x(x−1)−1(x−1)=0

x=1, x=

2

1

We take the value of x=1

x value put in equation (1)

2(1)+y=3

y=3−2

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x−y

=(1+1)

(1−1)

=2

0

=1

Hence, this is the answer

Was this answer helpful?

6 0
2 years ago
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***WILL MARK BRAINLIEST*** Write in Scientific Notation! #4
Dmitry [639]
1) 2.92• 10^-3 2) 2.16•10^7. 3)7.5•10^8
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3 years ago
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Z varies jointly with y and the square of x. If z =128 when y =4 and x=-4, find z when x=2 and y=-5.
motikmotik

Answer:

z= -160

Step-by-step explanation:

8 0
4 years ago
Please i need help .........
slava [35]

Answer:

14

Step-by-step explanation:

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Hope this helped.

A Brainliest is always appreciated.

4 0
2 years ago
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3x+4y+6z=15<br>Solve for x.​
aalyn [17]

Answer:

<h2> </h2><h2>x = 5 -  \frac{4}{3} y - 2z</h2>

Step-by-step explanation:

<h3><u>Question</u><u>:</u><u>-</u></h3>
  • To solve for x

<h3><u>Equation</u><u>:</u><u>-</u></h3>
  • 3x + 4y + 6z = 15

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

=> 3x + 4y + 6z = 15

  • <em>[</em><em>On</em><em> </em><em>subtracting</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>4y</em><em>]</em>

=> 3x + 4y + 6z - 4y = 15 - 4y

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=> 3x + 6z = 15 - 4y

  • <em>[</em><em>On</em><em> </em><em>subtracting</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>6z</em><em>]</em>

=> 3x + 6z - 6z = 15 - 4y - 6z

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=> 3x = 15 - 4y - 6z

  • <em>[</em><em>On</em><em> </em><em>dividing</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>3</em><em>]</em>

=  >  \frac{3x}{3}  =  \frac{15 - 4y - 6z}{3}

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=  > x = 5 -  \frac{4}{3} y - 2z \: (ans)

3 0
2 years ago
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