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3 years ago

What’s is this ? a20 b22 c27 d21

Mathematics

2 answers:

Zina [86]3 years ago

6 0

Answer:

it would be c because you add them

Leni [432]3 years ago

4 0

Answer:

Step-by-step explanation:

straight guess

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5a+5-3a=13 i needed to make it 20 charatcers

defon

Answer:

5a plus 5 minus 3a is equal 13

Step-by-step explanation:

7 0

2 years ago

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ASAAPPPPPP!!!!! Complete the tables of values

velikii [3]

Answer:

see explanation

Step-by-step explanation:

Using the rules of exponents

$a^{-m}$ ⇔ $\frac{1}{a^{m} }$ and $a^{0}$ = 1

Substitute the values of x into $4^{-x}$

x = 0 → $4^{0}$ = 1 ⇒ a = 1

x = 2 → $4^{-2}$ = $\frac{1}{4^{2} }$ = $\frac{1}{16}$ , hence

b = $\frac{1}{16}$

x = 4 → $4^{-4}$ = $\frac{1}{4^{4} }$ = $\frac{1}{256}$ , hence

c = $\frac{1}{256}$

6 0

3 years ago

PLZ Help. It will be very appreciated.

11Alexandr11 [23.1K]

when the two books were published

3 0

3 years ago

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Please help me asap

Leto [7]

1. D 12 2/7
2. 22 7/9 which is B hope this helps

7 0

3 years ago

The solution to 3x2 – 12x 24 = 0 is

zzz [600]

$3x^2 - 12x + 24 = 0 \\ x^2 - 4x + 8 = 0 \\ x= \frac{-b \pm \sqrt{ b^{2} -4ac} }{2a} 
$ ; where a = 1, b = -4 and c = 8
$x= \frac{-(-4) \pm \sqrt{ (-4)^{2} -4 \times 1 \times 8} }{2 \times 1} \\ = \frac{4 \pm \sqrt{ 16 -32} }{2} \\ =\frac{4 \pm \sqrt{ -16} }{2} \\ =\frac{4 \pm 4i }{2} \\ =2+2i \ or \ 2-2i$

7 0

3 years ago

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