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gogolik [260]
3 years ago
6

What is (3x-4) (7x+4)

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
7 0

Answer:21x^2-16x-16

Step-by-step explanation:

(3x)(7x)+(3x)(4)+(−4)(7x)+(−4)(4) =

21x^2+12x−28x−16

21x^2−16x−16

enot [183]3 years ago
6 0

Answer:

21x^2 -16x -16

Step-by-step explanation:

This is a basic multiplication question,

We all know that (a+b)(c+d)=ac+ad+bc+bd

Here,

a = 3x

b = -4

c = 7x

d = 4

Therefore,

3x*7x + 3x*4 + (-4)*7x + (-4)*4

=> 21x^2 +12x - 28x -16

=> 21x^2 -16x -16

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after eating at the restaurant, jason, sandy, and sam decided to divide the bill evenly. if each person pid 34 dollars, what was
stealth61 [152]

Answer:

$102

Step-by-step explanation:

34x3=102

34+34+34=102

There are three people total, each paid 34. Add each person's total to the others, or multiply by three.

5 0
3 years ago
Find the area of a trapezium whose parallel sides are 28.7 cm and 22.3 cm and distance between parallel sides is 16 cm.
puteri [66]

Given:

The parallel sides of a trapezium are 28.7 cm and 22.3 cm.

The distance between parallel sides is 16 cm.

To find:

The area of a trapezium.

Solution:

The area of the trapezium is:

A=\dfrac{a+b}{2}h

Where, a,b are parallel sides and h is the vertical distance between the parallel sides.

Putting a=28.7, b=22.3,h=16 in the above formula, we get

A=\dfrac{28.7+22.3}{2}\times(16)

A=\dfrac{51}{2}\times 16

A=51\times 8

A=408

Therefore, the area of the trapezium is 408 square cm.

4 0
3 years ago
For any two nonzero integers, the product and quotient have the same sign. True or False
victus00 [196]
That's true. If the integers both have the same sign, then their product and quotient are both positive. If signs are different, then product and quotient are both negative.
5 0
3 years ago
Read 2 more answers
The house numbers on the north side of Flynn Street are even. In one block, the house numbers begin 1022, 1032, 1042, and 1052.
never [62]

Answer:

  6 houses away

Step-by-step explanation:

You can write down the house numbers and count them:

  1032, 1042, 1052, 1062, 1072, 1082

1082 is the 6th house from where Taylor is.

___

You can also recognize that (1082 -1022)/10 = 60/10 = 6 is the number of houses away from the house at 1022.

4 0
3 years ago
What is angle BCD<br> A. 80°<br> B. 90°<br> C. 100°<br> D. 110°
alexgriva [62]

Answer:

A

Step-by-step explanation:

it is like your hands hold your hand put to make a l shape that is 90⁰ and imaine that more opened out.

7 0
2 years ago
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