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miss Akunina [59]
3 years ago
5

PLZ ANSWER QUICK!!

Mathematics
1 answer:
ASHA 777 [7]3 years ago
6 0
1. D(18yd) 2. B(42m)
You might be interested in
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DochEvi [55]
4. 3(3) + 2
(3 x 3) + 2 = 11
5. -(-6) -7
(+)6 -7 = -1
7 0
3 years ago
How do you solve this equation?
Travka [436]
Exponentail thingies

easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0

now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero

5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1


5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4

x=log₅1 and/or log₅4







second quesiton

same thing

1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero

2^x-8=9
2^x=8
x=3

2^x-2=0
2^x=2
x=1

x=3 or 1







first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3


7 0
3 years ago
1/secA-tanA - 1 /secA+tanA <br>So the answer comes 2tanA/sec^2 A-tan^2A <br>how ??.​
solniwko [45]

Answer:

Hope it helps

thanks ।।।।।।।।।।।।।

7 0
2 years ago
NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!!!
Over [174]

9514 1404 393

Answer:

  b.  -150

Step-by-step explanation:

We usually take elevation to be positive above sea level, and negative below sea level. If the elevation is below sea level, it is negative. If it is within 200 ft of sea level, the magnitude of the negative number is 200 or less. That is, the elevation must satisfy ...

  -200 ≤ elevation < 0

The only answer choice in that range is -150.

Ethan's elevation in feet could be -150.

5 0
3 years ago
A. 40°<br>B. 50°<br>C. 80 °<br>D. 140°​
Ghella [55]

Answer: A. 40

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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