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umka2103 [35]
2 years ago
8

2. If log10 x = 2, then x is a. 4 b. 20 c. 100 d. 1000

Mathematics
2 answers:
kherson [118]2 years ago
8 0

Answer:

C

Step-by-step explanation:

Using the rule of logarithms

log_{b} x = n ⇔ x = b^{n}

Given

log_{10} x = 2 ⇒ x = 10² = 100 → C

solniwko [45]2 years ago
5 0

Answer:

C.100

Step-by-step explanation:

10^2=x

or x=100

[a^x=b,log_{a} b=x\]

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Which ordered pair is a solution of the equation below? y=-7+2x?
Maru [420]
The answer to this question is:
  x  y  
(1,-5)   so the equation would be   -5=-7+2(1)   
                                                      -5=-7+2       -7+2=-5
                                                       -5=-5
hope this helps;)
8 0
2 years ago
1 Selena rewrote the expression 4(5m + 12s) using the distributive property. What expression did Selena create?
ad-work [718]

Answer:

4*5+12

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve for u. u+1/4=-4/5
DedPeter [7]

Answer:

u = (-21)/20

Step-by-step explanation:

Solve for u:

u + 1/4 = (-4)/5

Put each term in u + 1/4 over the common denominator 4: u + 1/4 = (4 u)/4 + 1/4:

(4 u)/4 + 1/4 = -4/5

(4 u)/4 + 1/4 = (4 u + 1)/4:

1/4 (4 u + 1) = -4/5

Multiply both sides of (4 u + 1)/4 = (-4)/5 by 4:

(4 (4 u + 1))/4 = (-4)/5×4

4×(-4)/5 = (4 (-4))/5:

(4 (4 u + 1))/4 = (-4×4)/5

(4 (4 u + 1))/4 = 4/4×(4 u + 1) = 4 u + 1:

4 u + 1 = (-4×4)/5

4 (-4) = -16:

4 u + 1 = (-16)/5

Subtract 1 from both sides:

4 u + (1 - 1) = (-16)/5 - 1

1 - 1 = 0:

4 u = (-16)/5 - 1

Put (-16)/5 - 1 over the common denominator 5. (-16)/5 - 1 = (-16)/5 - 5/5:

4 u = (-16)/5 - 5/5

-16/5 - 5/5 = (-16 - 5)/5:

4 u = (-16 - 5)/5

-16 - 5 = -21:

4 u = (-21)/5

Divide both sides by 4:

u = ((-21)/4)/5

5×4 = 20:

Answer:  u = (-21)/20

3 0
3 years ago
At the beginning of the month, the value of a stock is $78.35. By the end of the month the value of the stock has changed by a l
liberstina [14]

Answer:

Step-by-step explanation:

Begining of the month, value of stock=$78.35

At the end, the loss = $12.80

Value of stock at the end of the month= the difference between both values

$78.35 - $12.80 = $65.55

8 0
3 years ago
Ming writes a number pattern on a slip of paper and hands it to his friend Jack. 24 21 23 20 22 19 21 18 Jack writes the next nu
tiny-mole [99]
The rule is -3, then +2

24-3 = 21
21 + 2 = 23
23-3= 20
20+2= 22
22-3= 19
19+2 = 21
21-3= 18
18+2 = 20
3 0
3 years ago
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