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3 years ago

I don’t know the answer to the question in the picture above

Mathematics

1 answer:

Andrej [43]3 years ago

8 0

Answer:

x=-7/4

Step-by-step explanation:

4x+7=0

4x=-7+0

4x=-7

x=-7/4

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100 points PLEASE ANSWER ASAP thank you so much

Fudgin [204]

Answer:

$\textsf{Apply the Perfect Square Formula}\quad (a + b)^2 = a^2 + 2ab + b^2:$

$\implies (a+bi)^2=a^2+2abi+(bi)^2$

$\textsf{Apply exponent rule} \quad (a\cdot b)^c=a^cb^c:$

$\implies a^2+2abi+b^2i^2$

$i=\sqrt{-1} \implies i^2=-1$

$\textsf{Apply imaginary number rule} \quad i^2=-1:$

$\implies a^2+2abi+b^2(-1)$

$\implies a^2+2abi-b^2$

$\textsf{Collect the real parts:}$

$\implies a^2-b^2+2abi$

$\textsf{Factor the real parts by applying the Difference of Two Squares Formula}\\x^2-y^2=(x+y)(x-y) :$

$\implies (a+b)(a-b)+2abi$

4 0

2 years ago

Read 2 more answers

Rewrite in simplest terms 2(-4p-6)-5p

yKpoI14uk [10]

Answer:

-13p - 12

Step-by-step explanation:

2(-4p-6)-5p

Distibute 2:

-8p - 12 - 5p

Combine like terms:

-13p -12

4 0

3 years ago

Read 2 more answers

A test consists of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean

yulyashka [42]

The standard deviation is 0.

3 0

3 years ago

The length of the reading is 9 feet. What is the width of the reading area?

sladkih [1.3K]

In this problem we would first subtract 9 from 32 two times, or multiply 9 by 2 which is 18 and then subtract to get 14 because since this is a rectangle, there are two lengths.

If there are two lengths, there will be two widths, so then just divide 14 by 2 to get 7 and your width is 7

6 0

3 years ago

Whats 6[4x(72-63)÷3]

Minchanka [31]

The answer is 72
you first start by doing whats in the parenthesis: 72-63. that equals 9. then do the brackets [4(9)/3] do this from left to right 4x9=36. 36/3= 12 last do 6x12 that equals 72 which is the most simplified version

7 0

4 years ago