All categories

2 years ago

True or False? In Exercises 119 and 120, determine whether the equation is true or false. Justify your answer.

Mathematics

1 answer:

seraphim [82]2 years ago

3 0

Answer:

True

Step-by-step explanation:

To find true or false

Using the properties of logarithms, the left side of the given equation .logb b^2r=2r

, is equivalent to logb b^2r = 2x logb b

(use Power Rule)

=2x(1)

=2x

Hence, the given statement is a true statement.

You might be interested in

PLEASE HELP ME THIS IS DUE TODAY AND I WILL MARK BRAINLEST.

AVprozaik [17]

Answer:

first graph is a function

Step-by-step explanation:

6 0

3 years ago

Please help! I will mark you as brainliest!

lisov135 [29]

Answer:

7/9

Step-by-step explanation:

Think of 1 as being 9/9. The difference between 9/9 and 2/9 is 7/9, which is the answer

8 0

3 years ago

Read 2 more answers

Write an equation of a line that passes through the points (1, 7) and (5, 19) . Give the final form in slope intercept form. (Pl

Alinara [238K]

Answer:

y = 3x + 4

Step-by-step explanation:

slope = (y2 -y1)/(x2 - x1)

y2 = 19

y1 = 7

x2 = 5

x1 = 1

Slope = (19 - 7)/(5 - 1)

slope = 12 / 4

slope = 3

So far what you have is

y = 3x + b To solve for b, use either of the two points.

x = 1

y = 7

7 = 3(1) + b

7 = 3 + b

b = 4

The final equation is

y = 3x + 4

We should check that with the other point

x = 5 Find y

y = 3(5) + 4

y = 15 + 4

y = 19 Ans it checks.

3 0

3 years ago

Which number goes in the box to make this a true sentence? 65 × 32 = (65 × 30) + (65 × ) PLZZ HELP!

lutik1710 [3]

The answer would be 2.

65 x 32 = 2080.

(65 × 30) = 1950
(65 × 2) = 130

1950 + 130 = 2080

To make this easier, you can 30 from 32.

7 0

3 years ago

What is the value of y in this system of equations: 3x + y = 9 y = –4x + 10 ?

Ahat [919]

3x + y = 9 (I)
y = –4x + 10 (II)
------------------------
 $\left \{ {{3x + y = 9 } \atop {y = -4x + 10 }} \right.$

Pass the incognito "4x" to the first term, changing the signal when changing sides.
-------------------------
simplify by (-1)
 $\left \{ {{3x + y = 9.(-1)} \atop {4x + y = 10 }} \right.$ 

-------------------------
 $\left \{ {{- 3x - \diagup\!\!\!\!y =-9} \atop {4x + \diagup\!\!\!\!y = 10}} \right. 
$

-------------------------
 $\left \{ {{- 3x = - 9} \atop {4x = 10}} \right.$ 

-----------
 $\boxed{x = 1}$ 

Substitute in equation (I) to find the value of "Y".

3x + y = 9 (I)
3*(1) + y = 9
3 + y = 9
y = 9 - 3
$\boxed{y = 6}$

Answer:
$\boxed{\boxed{ \left \ {{x=1} \atop {y=6}} \right. }}$

6 0

3 years ago