All categories

3 years ago

Log 7 (x2 + 11) = log 7 15 answers; a)4 b)2 c)3.87 d)12

Mathematics

2 answers:

Finger [1]3 years ago

4 0

Answer:

Step-by-step explanation:

i thought 7 is a base so just solve equation

2x+11=15

x=2

vesna_86 [32]3 years ago

4 0

Answer:

Step-by-step explanation:

log 7 (x^2 + 11) = log 7 15

x^2 + 11 = 15

-11 -11

x^2 = 4

( $\sqrt{x}^{2}$ ) = ( $\sqrt{4}$ )

x = 2

You might be interested in

A square rotated about its center by 360º maps onto itself at different angles of rotation. You can reflect a square onto itself

harkovskaia [24]

A square rotated about its center by 360º maps onto itself at 4 different angles of rotation. You can reflect a square onto itself across 4 different lines of reflection.

8 0

3 years ago

Read 2 more answers

Is (1, 2) solution for this system of inequalities ?

diamong [38]

Answer:

MAYBE

Step-by-step explanation:

7 0

3 years ago

ASTRONOMY!!!

Helen [10]

Answer:

I think it's

B. UV radiation from the Sun causes overheating of transformers.

Sorry if i'm wrong.

4 0

3 years ago

In the figure below, AMNO

NeX [460]

Given:

$\Delta MNO\cong \Delta PQR$

To find:

The length of QR.

Solution:

We have,

$\Delta MNO\cong \Delta PQR$

Then, $MN=PQ$ (CPCTC)

$10=4x-2$

$10+2=4x$

$12=4x$

Divide both sides by 4.

$\dfrac{12}{4}=x$

$3=x$

Similarity,

$MO=PR$ (CPCTC)

$2y+3=21$

$2y=21-3$

$2y=18$

Divide both sides by 2.

$y=9$

Now,

$x+y=3+9$

$x+y=12$

Therefore, the correct option is d.

4 0

3 years ago

C/8+25=20 what does c equal

Korolek [52]

Answer:

-40

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers