3 years ago

What is (3x-4)^2 in expanded form

1 answer:

34kurt3 years ago

7 0

(3x-4)(3x-4) is the answer because when something is squared, it's just multiplying itself by itself, this also applies to expressions.

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A scale of the Golden Gate Bridge in San Francisco Bay has

lora16 [44]

Answer:

2520ft

Step-by-step explanation:

Calculation for what is the scale of the model?

Let x will be the span length

Hence,

x= 4200 feet long/20 inches long

x=210

Thus:

1 inch = 210 ft

1 ft = 2520

=2520ft

Therefore the scale of the model will be 2520ft

3 0

2 years ago

A line has a slope of 3/5. It passes through (3,5) and (x,9). What is the value of x?

blagie [28]

This is in 2 point form
(y2-y1)=m(x2-x1)
(9-5)=3/5(x-3)
x=29/3

4 0

3 years ago

51 less than the 8 times an unknown number is equal to 53.

Anton [14]

Let, Unknown number = x

8x-51 = 53

8x = 53+51

x = 104/8

x = 13

8 0

3 years ago

B) 8xy +4y² factorise

m_a_m_a [10]

Answer:

The answer is: 4y(2x+y)

Step-by-step explanation:

8 0

10 months ago

Three times a number plus twice another is 10, while their sum is 10, Find the numbers

Aleks [24]

$3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}$

5 0

3 years ago