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3 years ago

What is x multipied by -x

Mathematics

2 answers:

Alik [6]3 years ago

7 0

The result of x*(-x)= $-x^2$

Nadya [2.5K]3 years ago

4 0

Answer:

the answer is -x because a negative integer multiplied by a positive integer equals a negative integer.

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how many feet are in 3.2km given that 1 mile is 1.609km and 1 mile 5280.A. 2654.85ft B. 8495.52ft C. 9437.42ft D. 10500.93ft

LuckyWell [14K]

Answer:

3.2 km * 1 / 1.609 mi / km * 5280 ft / mi = 10,501 ft

Check: 3280.84 ft / km * 3.2 km = 10,499 ft

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3 years ago

.933333333 repeative as a fraction

Tanya [424]

Well if it is a number like .933333333 you will have to round it, So now it is .93 and .93 in a fraction is 93/100

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3 years ago

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3 years ago

Read 2 more answers

A right rectangular prism is 5 1/4 in. wide, 12 1 2 in. long, and 4 in. tall.

lozanna [386]

Answer: $V = 262\frac{1}{2}$ $cm^{3}$

Step-by-step explanation:

$V = LWH$

$V = 5\frac{1}{4}$ X $12\frac{1}{2}$ X 4

$V = \frac{21}{4}$ X $\frac{25}{2}$ X $\frac{4}{1}$

$V = \frac{525}{2}$

$V = 262\frac{1}{2}$ $cm^{3}$

7 0

3 years ago

Find the zeros of y = x + 6x- 4 by completing the square.

dsp73

Answer:

$\large\boxed{x=-3\pm\sqrt{13}}$

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\x^2+6x-4=0\qquad\text{add 4 to both sides}\\\\x^2+2(x)(3)=4\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=4+9\\\\(x+3)^2=13\Rightarrow x+3=\pm\sqrt{13}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{13}$

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3 years ago