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anzhelika [568]
3 years ago
14

∠A and ∠B are complementary angles.

Mathematics
1 answer:
iogann1982 [59]3 years ago
3 0
Cos 52 = 0.6157

sin 42 = cos 48 = 2/3     (because 42 + 38 = 90 - complementary angles)

if tan 20,5 = 3/8 then  tan 69.5 wil =  1 / 3/8  = 8/3

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Which expressions are equivalent to the one below? Check all that apply.log(10^7)
maksim [4K]

The value of expression is 7.

<h3>What is expression?</h3>

An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)

Given:

log 10^{7}

Now, using property of log

log b^{a} = a log b

So,

log 10^{7}= 7 log 10

As log 10 = 1

log 10^{7}= 7 (1)

log 10^{7}= 7

Learn more expression here:

brainly.com/question/14083225

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8 0
2 years ago
1) -7v + 4(2 - 5v) = -154
Bad White [126]

Answer:

v=6

Step-by-step explanation:

First let's simplify the equation so it will be easier to PEMDAS the equation later.

-7v+4(2-5v)=-154

-7v+8-20v=-154

-27v+8=-154

Now you must isolate the v variable. You do this by subtracting 8 first and then divide by -27.

-27v+8=-154

-27v=-162

v = 6

5 0
3 years ago
Find the ratio of a to b if 2a=3c and 12c=7b​
postnew [5]

Answer:

I think the answer is 1a : 14b

6 0
2 years ago
Hello everyone I really need help with this I need answers i’ve been trying to find the answers for almost 1 hour now I’m really
Ghella [55]
A. V=240
10x6x4=240
B. V= 1194.59
n(pie) 6.5x9
C. V= 6171.67
D. V= 1603.52
E. V=6859
6 0
2 years ago
Factor 5x² - 26 + 24​
Nesterboy [21]
The answer is (5x+4)(x-6)
6 0
3 years ago
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