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3 years ago

Circle the perfect squares

Mathematics

1 answer:

ddd [48]3 years ago

8 0

No circle can never be the perfect squares

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Show all work to multiply (2+√-25)(4-√-100)

ki77a [65]

Answer:

Step-by-step explanation:

given the expression;

(2+√-25)(4-√-100)

Note that √-25 = √-1 * √25

√-100 = √-1 * √100

According to complex number, √-1 = i

√-25 = 5i

√-100 = 10i

The expression becomes

(2+5i)(4-10i)

Open the parentehsis;

= 2(4)-20i+20i-50i²

= 8-50i²

Since i² = -1

The expression becomes;

8-50i² = 8-50(-1)²

8-50i² = 8-50 = -42

Hence the product of the expression is -42

7 0

3 years ago

What is the product of 14,560 times 10 and explain the number of zeros

VashaNatasha [74]

14,560
× 10
-----------
00,000
+145,600
--------------
145,600 ↔answer

6 0

3 years ago

Read 2 more answers

Y=x2−6x+10<br> y=4−x<br><br><br> How do I substitute?

Shtirlitz [24]

Answer:

(2,2) and (3,1)

Step-by-step explanation:

Since we're given the value of y in the second equation, we can replace the y on the left side of the first equation with 4-x, giving us

$4-x=x^2-6x+10\\0=x^2-5x+6$

We can factor the expression on the right to get us

$0=x^2-5x+6\\0=x^2-3x-2x+6\\0=x(x-3)-2(x-3)\\0=(x-2)(x-3)$

Solving $x-2=0$ and $x-3=0$ gets us the solutions $x=2,3$ , which we can plug into the second equation to get us

$y=4-2=2\\y=4-3=1$

So, our solution set is the pair of points (2,2) and (3,1)

7 0

3 years ago

WATU

blondinia [14]

Answer:

12.24

Step-by-step explanation:

13.48-1.24=12.24

7 0

2 years ago

95% of what number is 19?

Setler79 [48]

95% of 20 is 19

Convert your percentage into a decimal:
$\frac{95}{100} = 0.95$

Divide 19 by your decimal:
$19 \div 0.95 = 20$

8 0

3 years ago

Read 2 more answers