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tekilochka [14]

3 years ago

12

Helpppppppp plzzzzzzzzzzz i dont get it

2 answers:

AnnyKZ [126]3 years ago

7 0

Add the 2 values togetehr

irga5000 [103]3 years ago

3 0

Answer:

P=2(l+w)

sooo

Perimeter is 2/7+2. which is 2.2

Step-by-step explanation:

Im not completely sure, but hope this helps XP

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Anna [14]

Answer:

120

Step-by-step explanation:

5 0

3 years ago

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Leno4ka [110]

a: 2

b: 5

c 3

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I think the ans is 2

5 0

3 years ago

Plot G(8,−6) , H(2,−6) , J(7,4) , and K(7,10) in a coordinate plane. Are GH and JK congruent?

Zarrin [17]

GH and JK planes are congruent!

5 0

3 years ago

Find the measurement angle of CDL

Y_Kistochka [10]

Answer:

Step-by-step explanation:

153+12x-3=13+x

4 0

2 years ago

Read 2 more answers

Hi, how's everyone doing? I need help with these exponential equations, please. Thanks! :)

Vesna [10]

Answer:

Step-by-step explanation:

1). $2^{x^{2} +2x}=\frac{1}{2}$

$2^{x^{2} +2x}=2^{-1}$

Comparing exponents on both the sides.

x² + 2x = -1

x² + 2x + 1 = 0

(x + 1)² = 0

x = -1

2). $2^{x-3}=8^{x+1}$

$2^{x-3}=(2^{3})^{x+1}$

$2^{x-3}=(2)^{3(x+1)}$

By comparing exponents,

x - 3 = 3(x + 1)

x - 3 = 3x + 3

3x - x = 3 + 3

2x = 6

x = 3

3). $\sqrt{a^{5-k}}=a^{3-k}$

$a^{\frac{5-k}{2}}=a^{3-k}$

By comparing exponents,

$\frac{5-k}{2}=3-k$

5 - k = 2(3 - k)

5 - k = 6 - 2k

2k - k = 6 - 5

k = 1

4). $3^{x+3}=27^{(2x+6)}$

$3^{x+3}=(3^3)^{2x+6}$

$3^{x+3}=(3)^{3(2x+6)}$

By comparing exponents,

x + 3 = 3(2x + 6)

x + 3 = 6x + 18

6x - x = 3 - 18

5x = - 15

x = -3

5). $5^{x-2}=1$

$5^{(x-2)}=5^{0}$

x - 2 = 0

x = 2

6 0

3 years ago