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jok3333 [9.3K]
3 years ago
11

What is the value of x? x + 13 = 59

Mathematics
1 answer:
Volgvan3 years ago
7 0

Answer:

x=46

Step-by-step explanation:

subtract 13 from both sides

x=59-13=46

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Solve the following exponential equations.<br> 10^(3x−5) = 7^x
zalisa [80]

Answer:

x = 2.3202

Step-by-step explanation:

Given equation:

10^{(3x-5)} = 7^x

on taking log both sides, we get

\log(10^{(3x-5))} =\log(7^x)

now,

using the property of log function

log(aᵇ) = b × log(a)

therefore,

we get

(3x-5)log(10) = xlog(7)

now,

log(10) = 1

and

log(7) = 0.84509

thus,

( 3x - 5 ) × 1 = 0.84509x

or

3x - 0.84509x - 5 = 0

or

2.15491x = 5

or

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4 0
3 years ago
What is the value of Tangent (t/2) if Cosine (t) = 4/5 and t is in quadrant IV?
mihalych1998 [28]

Answer:

-1/3

Step-by-step explanation:

Right on edge2020

8 0
3 years ago
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The sum of two numbers is 15 if the sum of their reciprocal is 3/10 find the numbers
malfutka [58]

Answer:

The numbers are 10 and 5

Step-by-step explanation:

x+y=15

(1/x)+(1/y)=(3/10)

(1/(15-y))+(1/y)=(3/10)

x=10, y=5

6 0
3 years ago
Solve the equation for a.
nataly862011 [7]

Answer:

a=-7.68

Step-by-step explanation:

3a+13.61=-9.43

               -13.61

_____________

               -23.04

3a=-23.04

-23.04/3= -7.68

7 0
2 years ago
Select the correct answer,
ivanzaharov [21]

Answer:

D. 81

Step-by-step explanation:

Raise  

3

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4

.

81

=

x

Rewrite the equation as  

x

=

81

.

x

=

81

7 0
2 years ago
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