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3 years ago

What is the x-intercept of the function y = log2 (x - 5)?

Mathematics

2 answers:

dimulka [17.4K]3 years ago

7 0

Rewrite the equation as log. (2) (x-5)=y log (2)(x-5)=y
The divide each term by log(2) and simplify. Then add 5 to both sides of the equation to get this:

Vikentia [17]3 years ago

7 0

Answer:

(6,0)

Step-by-step explanation:

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Let A = R−{0}, the set of all nonzero real numbers, and consider the following relations on A × A. Decide in each case whether R

andre [41]

Answer:

Step-by-step explanation:

Let A = R−{0}, the set of all nonzero real numbers, and consider the following relations on A × A.

Given that (a,b) R (c,d) if $ad=bc$

Or (a,b) R (c,d) if determinant

$\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] =0$

a) Reflexive:

We have (a,b) R (a,b) because ab-ab =0 Hence reflexive

b) Symmetric

(a,b) R (c,d) gives ad-bc =0

Or da-cb =0 or cb-da =0 Hence (c,d) R(a,b). Hence symmetric

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5 0

3 years ago

Compare and order the decimals from least to greatest. 1.02 1.009 0.89 1.1 1.017

RideAnS [48]

0.89, 1.009, 1.017, 1.02, 1.1 is the correct order

6 0

3 years ago

Read 2 more answers

Given the sequence 8, 12, 16, 20, 24, what is the sum of the 31st and 19th terms?

erica [24]

Answer:

First term (a) =8

Common difference (d)= t2-t1

=12-8

Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}

= 31/2{2×8+(31-1)4}

=31/2{16+(30×4)

=31/2(16+120)

=31/2×126

=31×63

Step-by-step explanation:

Similarly use 19 as (n) for the 19th term

7 0

2 years ago

Did I get this right if not can you help me

Triss [41]

Answer:

it is correct :>

Step-by-step explanation:

<3hope it heps

4 0

3 years ago

Those 2 questions I need help with . find sec θ and tanθ

Zielflug [23.3K]

STEP - BY - STEP EXPLANATION

What to find?

The the value of secθ.

Given:

(4, 3)

⇒(x, y) = (4, 3)

Step 1

Draw a sketch.

Step 2

Substitute the values into the trig. ratio formula below.

$tan\theta=\frac{opposite}{adjacent}$

From the sketch above, opposite = 3 and adjacent = 4

$tan\theta=\frac{3}{4}$

Step 3

Find the value of the hypotenuse side using Pythagoras theorem.

let h be the hypotenuse side.

$\begin{gathered} h^2=4^2+3^2 \\ \\ =16+9 \\ \\ =25 \\ \\ h=5 \end{gathered}$

Hence, hypotenuse = 5

Step 4

Substitute the values into the formula below:

$\begin{gathered} cos\theta=\frac{adjacent}{hypotenuse} \\ \\ =\frac{4}{5} \end{gathered}$

But,

$sec\theta=\frac{1}{cos\theta}=\frac{1}{\frac{4}{5}}=\frac{5}{4}$

ANSWER

secθ= 5/4

tanθ=3/4

7 0

1 year ago