Ask question

Ask question

All categories

2 years ago

13

Explain how solve 4^(x+3) = 7 using the change of base formula log base b of y equals log y over log b. Include the solution for

x in your answer. Round your answer to the nearest thousandth.

1 answer:

MaRussiya [10]2 years ago

4 0

Answer:

-1.596

Step-by-step explanation:

Apply log base 4 both sides

log4(4^(x+3)) = log4(7)

(x+3)log4(4) = lg7/lg4

x+3 = 1.403677461

x = -1.596322539

You might be interested in

The circumference of circle a is 3 times greater than the circumference of circle b. If the radius of circle a is 12 meters, wha

Ilya [14]

The radius is half of the circumference so the circumference of circle a is 24 or (12x2). Because circle a is 3 times bigger you take 24 and divide it by three and you get 8 now you have to divide it by 2 because every are looking for radius and 8 is the circumference. 8 divided by 2 equals 4 so the radius of circle b is 4

7 0

2 years ago

The coordinates of point A on a grid are (−2, −4). Point A is reflected across the y-axis to obtain point B. The coordinates of

hram777 [196]

Answer:

not sure if it's a or b but I think it's a

5 0

2 years ago

Read 2 more answers

The equation 6.32=k2 shows that buying 2 bags of apples would cost 6.32. how much is it for one bag

seropon [69]

Answer:

3.16

Step-by-step explanation:

You would divide the 6.32 by 2 to get the amount for one bag

5 0

3 years ago

A)<br> 30-2x For x= -6<br><br> B) <br> x2 + 2x For x=-3

kicyunya [14]

Answer:

A. 42

B. 3

Step-by-step explanation:

A. 30 - (2)(-6)= 42

b. (-3)^2 + (2)(-3)= 3

7 0

2 years ago

Read 2 more answers

If a,b,c,d are in continuous proportion then prove that (c+a) (c+d) = (b+c) (b+d)

sesenic [268]

Answer:

We must prove that (c+a)(c+d) = (b+c)(b+d)

Let us use principles from mathematical induction
$\frac{a}{b} = \frac{b}{c} = \frac{c}{d} = x$
a=bx , b=cx, c=dx
a+c = b + c
c +d = b + d
Such that (a+c)(c+d)=(b+c)(b+d)

Rate positively and give brainlist

8 0

2 years ago