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suter [353]
3 years ago
15

Find the product of (2a+3b) and (4a+5b). If a=4 and b=-2, what is the value of product​

Mathematics
2 answers:
ZanzabumX [31]3 years ago
4 0

Answer:

(2 \times 4 + 3 \times  - 2) \times (4 \times 4 + 5 \times  - 2) \\ (8    - 6) \times (16 - 10) \\ 2 \times 6 = 12

<h2>Mark as the brainliest please</h2>

Hoochie [10]3 years ago
4 0

Answer:

12

Step-by-step explanation:

2a+3b=2*4+3*(-2)=8-6=2

4a+5b=4*4+5*(-2)=16-10=6

the product is 2*6=12

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n parallelogram LMNO, MP = 21 m, LP = (y + 3) m, NP = (3y – 1) m, and OP = (2x – 1) m. What are the values of x and y? x = 10, y
seropon [69]

Answer:

The value of x = 11  and y = 2

Step-by-step explanation:

Given : parallelogram LMNO, MP = 21 m, LP = (y + 3) m, NP = (3y – 1) m, and OP = (2x – 1) m.

We have to find values of x and y.

Let P be the point of intersection of diagonals OM and LN.

In a parallelogram diagonal  bisects at right angles  and point of intersection divide diagonal in equal parts.

Thus, OP = MP and LP = PN

OP = MP , substitute the values, we get,

(2x-1) =  21

⇒ 2x = 22

⇒  x = 11

LP = PN , substitute the values, we get,

y + 3 = 3y -1

⇒  3y - y = 4

⇒  2y = 4

⇒ y = 2  

Thus, the value of x = 11  and y = 2


8 0
3 years ago
Whats 1000*1000 I<br> it's too short. Write at least 20 characters to get a great answer.
Alekssandra [29.7K]

Answer:

1000000

Step-by-step explanation:

4 0
3 years ago
Need help (pic included)
ValentinkaMS [17]

Answer:

(-4,-2)

x=-4

y=-2

Step-by-step explanation:

-3x-4y=20

3(x-10y=16)=3x-30y=48

The reason I multiplied 3 to the second equation is for when we add the equations together the x will cancel out.

  -3x-4y=20

+  <u>3x-30y=48</u>

  -34y=68

Divide -34 from both sides.

y=-2

To find x you need to plug in -2 for y into one of the equations.

x-10y=16

x-10(-2)=16

Remember a negative times a negative equals a positive.

x+20=16

Subtract 20 from both sides.

x=-4

Hope this helps!

If not, I am sorry.

4 0
2 years ago
(6 points) The diagram below, shows a shape. Work out the area of the shape.<br><br><br> ......cm^2
Marianna [84]

Answer:

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The area of a square notepad is 100 square centimeters. How long is each side?<br><br> ​
iragen [17]

Answer:

Each side is 25 square centimeters

Step-by-step explanation:

100 divided by 4 is 25

5 0
2 years ago
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