4 years ago

Which expression demonstrates the distributive property applied to the expression 4(x + y)?

Mathematics

1 answer:

nalin [4]4 years ago

3 0

4x+4y is the right answer.

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Which ordered pair is a reflection of (3,7) across the x-axis?

Alla [95]

Answer:

(3,-7)

Step-by-step explanation:

Using the algebraic rule for Rx-axis

(x,y)---->(x,-y)

(3,7)--->(3,-7)

5 0

3 years ago

HELP, Prove: (cos(x))/(sin(x)tan(x))=cot^2x

Mice21 [21]

Answer:

Steps shown below

Step-by-step explanation:

We will simplify this using definitions and identities. Let's start.

$\frac{cos(x)}{sin(x)tan(x)}$

Using $tanx=\frac{sinx}{cosx}$ , we have:

$\frac{cos(x)}{sin(x)\frac{sin(x)}{cos(x)}}\\=\frac{cos^2(x)}{sin^2(x)}$

Using $cot(x)=\frac{cos(x)}{sin(x)}$ , we have:

$\frac{cos^2(x)}{sin^2(x)}\\=cot^2(x)$

Hence, proved.

7 0

3 years ago

Read 2 more answers

From long experience, it is known that the time it takes to do an oil change and lubrication job on a vehicle has a normal distr

Delicious77 [7]

7 minutes is the answer i think but dont quote me on that

6 0

3 years ago

What is usually the best way to display data if you have more than 10 results?

mestny [16]

Answer:

Probably on a pie chart.

Step-by-step explanation:

You can color code each piece of data, and show the percentage for each on the pie chart.

5 0

3 years ago

the Earth has an average distance from the Sun of 1.5* 10 to the 8th power kilometers and the Earth has an approximate distance

Aleks04 [339]

Answer:

Earth's average distance from the Sun is $375$ times more than is from the Moon.

Step-by-step explanation:

Given the average distance of Earth from the Sun is $1.5\times10^{8}$ kilometers.

Also, the approximate distance of Earth from the Moon is $4\times10^{5}$ kilometers.

For this, we will divide the average distance of Earth from the Sun by approximate distance of Earth from the Moon.

So,

$\frac{1.5\times10^{8}}{4\times10^{5}}=375\ km$

4 0

3 years ago