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3 years ago

PLEASE HELP

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

Answer:

angle D should be equal to angle C

Step-by-step explanation:

i think this is the answer you need but i'm not sure

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Form the union in the following sets R={10, 15, 20} S={20, 25} RuS=

11111nata11111 [884]

$R=\{10,15,20\}\\S=\{20,25\}\\\\R\cup S=\{10,15,20,25\}$

6 0

3 years ago

Find all the complex roots of the equation x4 − 16 = 0.

TiliK225 [7]

Answer:

4+16=0

4=−16=162

2=±4

Case 1 2=+4

=±2√

√=±(12√+12√)

=±2‾√+2‾√

Case 2 2=−4=43

=±23/2=±2()1/2

∵√=±(12√+12√)

=±(2‾√+2‾√)

So in all,

=2‾√+2‾√

=−2‾√+2‾√

=2‾√−2‾√

=−2‾√−2‾√

Let √=+

Squaring both sides, we have

=(+)2

0+1=2−2+2⟹

2−2=0(1)

2=1

=12

Plugging in (1) … ⟹

2−1(2)2=0

4=14

2=12

∴=±12‾√

∴√=+=±(12+12)

This can also be shown as below

√=12+12

√=−12−12 \

3 0

3 years ago

If f(x)=3x+10x and g(x)=4x-1 find (f-g)(x)

oksano4ka [1.4K]

Answer:

(f - g)(x) = 9x + 1

Step-by-step explanation:

Step 1: Write out functions

f(x) = 3x + 10x = 13x

g(x) = 4x - 1

Step 2: Find (f - g)(x)

(f - g)(x) = 13x - (4x - 1)

(f - g)(x) = 13x - 4x + 1

(f - g)(x) = 9x + 1

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4 years ago

Yall its not 18 it is 15.5 i did the math and calculated it to find the anwser

madreJ [45]

Answer:

ok thx?

Step-by-step explanation:

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3 years ago

Express each of the following in standard form 0.000000000221

dezoksy [38]

Answer:

$2.21 \times {10}^{ - 10}$

Step-by-step explanation:

When we shift (.) from left to right in scientific notarion, the power of 10 varies in negative numbers according to how many numbers we shift.

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3 years ago