All categories

3 years ago

-11 3(4-5a)=? -11 12-15a =1-15a

Mathematics

1 answer:

den301095 [7]3 years ago

6 0

Answer = a=12/7=1.714

You might be interested in

What is the product? 6(x^2-1) times 6x-1 over 6(x+1)

sergejj [24]

(36x^3-36x-1)/6x+6 or 6x^2-6x+(-1/6x+6)

8 0

3 years ago

Read 2 more answers

The slope of a line is 1, and the y intercept is -1. What is the equation of the line written in slope intercept form? The answe

Zina [86]

slope=1

y-intercept= -1

y=x-1

<h3>Your Answer is y=x-1</h3>

6 0

3 years ago

What is the form of the two squares identity?

zvonat [6]

Answer:

Step-by-step explanation:

Consider all options:

A. False, because

$(a^2+b^2)(c^2+d^2)=a^2c^2+a^2d^2+b^2c^2+b^2d^2\\ \\(ab-cd)^2+(ac+bd)^2=a^2b^2-2abcd+c^2d^2+a^2c^2+2abcd+b^2d^2=\\ =a^2b^2+c^2d^2+a^2c^2+b^2d^2\\ \\a^2c^2+a^2d^2+b^2c^2+b^2d^2\neq a^2b^2+c^2d^2+a^2c^2+b^2d^2$

B. False, because

$(a^2-b^2)(c^2+d^2)=a^2c^2+a^2d^2-b^2c^2-b^2d^2\\ \\(ac-bd)^2-(ad+bc)^2=a^2c^2-2abcd+b^2d^2+a^2d^2+2abcd+b^2c^2=\\=a^2c^2+b^2d^2+a^2d^2+b^2c^2\\ \\a^2c^2+a^2d^2-b^2c^2-b^2d^2\neq a^2c^2+b^2d^2+a^2d^2+b^2c^2$

C. False, because

$(a^2+b^2)(c^2-d^2)=a^2c^2-a^2d^2+b^2c^2-b^2d^2\\ \\(ac+bd)^2-(ad+bc)^2=a^2c^2+2abcd+b^2d^2-a^2d^2-2abcd-b^2c^2=\\=a^2c^2+b^2d^2-a^2d^2-b^2c^2\\ \\a^2c^2-a^2d^2+b^2c^2-b^2d^2\neq a^2c^2+b^2d^2-a^2d^2-b^2c^2$

D. True, because

$(a^2+b^2)(c^2+d^2)=a^2c^2+a^2d^2+b^2c^2+b^2d^2\\ \\(ac-bd)^2-(ad+bc)^2=a^2c^2-2abcd+b^2d^2+a^2d^2+2abcd+b^2c^2=\\=a^2c^2+b^2d^2+a^2d^2+b^2c^2\\ \\a^2c^2+a^2d^2+b^2c^2+b^2d^2= a^2c^2+b^2d^2+a^2d^2+b^2c^2$

6 0

3 years ago

Factor the sum of terms as a product of the GCF and a sum<br> 28+35

Len [333]

Answer:

Step-by-step explanation:

28 = 2 * 2 * 7

35 = 5 * 7

The common factor is 7 . This is the GCF

28 + 35 = 7(4 + 5) (answer)

6 0

4 years ago

The two triangles below are similar.

Fofino [41]

The ratio is 4:2 because the smaller triangle is half the size

6 0

3 years ago