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solmaris [256]
2 years ago
12

Find the value of k when 5^-3 + 5^-4 = 5^k x 5^-4

Mathematics
2 answers:
lubasha [3.4K]2 years ago
8 0

Answer:

Given , 1/2 is a solution of the equation

or, 1/4 - 5/4 = -k/2

or, -k/2 = -1

or k = 2

Step-by-step explanation:

GalinKa [24]2 years ago
4 0

Answer:

k= 6/5 or 1.12

Step-by-step explanation:

You isolate the variable by dividing each side by factors that don't contain the variable. This variable (K) is not a whole number so I gave you the fraction and rounded decimal form. Hope this helps :)

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Q # 20 please help to solve
spin [16.1K]
If submarine is at the surface (the initial position) and then dives 375 ft, the coordinate  of submarine becomes -375 ft <span>relatively to the initial position. When the submarine dives another 175 ft down, the coordinate of submarine becomes -375-175=-550 ft relatively to the initial position.
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Answer: Correct choice is A.
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8 0
3 years ago
What is the coefficient of (-2/3x)(3y)(-2x)
dolphi86 [110]

Answer:

The coefficient is equal to  4

Step-by-step explanation:

we have

(-\frac{2}{3}x)(3y)(-2x)

we know that

The coefficient is equal to

(-\frac{2}{3})(3)(-2)=4

so

(-\frac{2}{3}x)(3y)(-2x)=4x^{2}y

4 0
3 years ago
Solve 3x−5 = 9.<br><br> x = −3<br> x = 2<br> x = 7<br> x = 8
Airida [17]
I hope this helps you




3x-5+5=9+5


3x=14


x=4,66666....
8 0
3 years ago
Read 2 more answers
Type the number that must be entered in the blank to create a linear equation with infinitely many solutions.
Tomtit [17]

Answer:4

Step-by-step explanation:

6 0
3 years ago
What is the sum of 3/10 and 17/100
alina1380 [7]
3/10 + 17/100

first make the 10 of the 3/10 turn into a 100 so it will make the 100 of the 17/100.
to make 10 turn into a 100 you multiply it by 10. if you're going to multiply the bottom number by 10 then you have to do the same thing with the top number:
3/10 * 10/10
3*10=30
10*10=100

new equation:
30/100 + 17/100

now just add the top numbers and leave the 100's alone:
<span>30/100 + 17/100
</span>30+17=47
<span>30/100 + 17/100 = 47/100</span>
5 0
3 years ago
Read 2 more answers
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