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3 years ago

Robert is collecting books to donate to the library.

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

The answer is c because it makes sense that it would be months.

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Write the expression as a single logarithm PLEASE (log3-log4)-log2

Y_Kistochka [10]

$\bf \textit{Logarithm of rationals} \\\\ \log_a\left( \frac{x}{y}\right)\implies \log_a(x)-\log_a(y) \\\\[-0.35em] \rule{34em}{0.25pt}\\[1em] [\log(3)-\log(4)]-\log(2)\implies \log\left( \cfrac{3}{4} \right)-\log(2)\implies \log\left( \cfrac{\frac{3}{4}}{~~2~~} \right) \\\\\\ \log\left( \cfrac{\frac{3}{4}}{~~\frac{2}{1}~~} \right)\implies \log\left( \cfrac{3}{4}\cdot \cfrac{1}{2} \right)\implies \log\left( \cfrac{3}{8} \right)$

4 0

3 years ago

Does anyone know this

Phantasy [73]

The value of x is 20.

Solution:

Sides of one triangle are 2x – 4 and 39.

Sides of another triangle are x + 6 and 24.

Property of similar triangle:

If two triangles are similar then their corresponding angles are congruent and the corresponding sides are in the same ratio.

$$\frac{2x-4}{24} =\frac{39}{x+6}$

Do cross multiplication.

$(2x-4)(x+6)=39\times 24$

$2x^2+12x-4x-24=936$

$2x^2+8x-24-936=0$

$2x^2+8x-960=0$

Divide by 2 on each of the term.

$x^2+4x-480=0$

Solve using quadratic equation.

$(x-20)(x+24)=0$

$(x-20)=0, \ (x+24)=0$

$x = 20, \ x = -24$

Ignore the negative term, because if you substitute this you will get a negative terms only. But length of sides cannot be in negative measures.

Therefore x = 20.

4 0

3 years ago

What is ∣x − 2∣ = ∣4 + x∣?

DIA [1.3K]

Answer:

x = -1

Step-by-step explanation:

<h2>I think ...</h2>

sorry if I'm wrong

7 0

3 years ago

The first hole of a golf course is 250 metres long. A golfer hits her drive exactly 250 m,

Serga [27]

Answer: A golfer finds himself in two different situations on different holes. On the second hole he is 120 m from the green and wants to hit the ball 90 m

Step-by-step explanation:

7 0

1 year ago

Please help! I need this ASAP!!! + Brainliest to first correct answer!

Levart [38]

Answer:

$\text{C. } 2$

Step-by-step explanation:

Proportional functions can be represented by $y=kx$ , where $k$ is a constant of proportionality and $(x, y)$ represents any point the line passes through.

In the graph, we can see the line passes through (20, 40). Therefore, we can plug in these coordinates to find the constant of proportionality:

$y=kx,\\40=k(20),\\k=\frac{40}{20}=\boxed{\text{C. }2}$

5 0

3 years ago

Read 2 more answers