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3 years ago

Combine like terms to simplify. 4y + 6x - 2y

Mathematics

2 answers:

jonny [76]3 years ago

8 0

Answer:

2y+6x

Step-by-step explanation:

4y + 6x - 2y

rewrite the equation

4y - 2y + 6x

subtract 4y from 2y

2y+6x

olga nikolaevna [1]3 years ago

6 0

Answer: 6x + 2y

Step-by-step explanation: 4y-2y are both alike terms, so you subtract the two, and then add 6x to it

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What is the product? Assume x greater-than-or-equal-to 0 (StartRoot 3 x EndRoot + StartRoot 5 EndRoot) (StartRoot 15 x EndRoot +

OlgaM077 [116]

Answer:

$3\sqrt5 x+ \sqrt x (6 \sqrt{10} +5\sqrt{3}) +10 \sqrt6$

Step-by-step explanation:

To find the product :

$(\sqrt{3x} +\sqrt5)(\sqrt{15x} +2\sqrt{30})$

$\sqrt{3x}(\sqrt{15x} +2\sqrt{30}) +\sqrt5(\sqrt{15x} +2\sqrt{30})\\\Rightarrow \sqrt{3x}\times \sqrt{15x} +\sqrt{3x}\times 2\sqrt{30} +\sqrt5 \times \sqrt{15x} +\sqrt5\times 2\sqrt{30}\\\Rightarrow \sqrt{45} \times x + 2 \sqrt{90x} + \sqrt{75x} + 2 \sqrt{150}\\\Rightarrow \sqrt{5 \times 9} \times x + 2 \sqrt{9\times 10x} + \sqrt{25 \times 3x} + 2 \sqrt{25 \times 6}\\\Rightarrow 3\sqrt5 x+ 2 \times 3 \sqrt{10x} +5\sqrt{3x} +2 \times 5 \sqrt6\\\Rightarrow 3\sqrt5 x+ 6 \sqrt{10x} +5\sqrt{3x} +10 \sqrt6$

$\Rightarrow 3\sqrt5 x+ \sqrt x (6 \sqrt{10} +5\sqrt{3}) +10 \sqrt6$

Some identities used:

1. $(a+b)(c+d) = a (c+d) + b(c+d)$

2. $\sqrt9 =3$

3. $\sqrt{25} =5$

4. $\sqrt x \times \sqrt x=x$

5. $\sqrt a \times \sqrt b = \sqrt{ab}$

So, the solution is $3\sqrt5 x+ \sqrt x (6 \sqrt{10} +5\sqrt{3}) +10 \sqrt6$

8 0

3 years ago

Read 2 more answers

Write and equation for this table use y=mx+b PLA ANSWER HELP FAST

hodyreva [135]

Answer:

y=2/3x+19/3

Step-by-step explanation:

plug into y-y prime = m (x-x prime)

7 0

3 years ago

A pizza parlor offers 3 sizes of pizzas, 2 types of crust, and one of 4 different toppings. How many different pizzas can be mad

KonstantinChe [14]

Answer: The total number of pizzas that can be made from the given choices is 24.

Step-by-step explanation: Given that a pizza parlor offers 3 sizes of pizzas, 2 types of crust, and one of 4 different toppings.

We are to find the number of different pizzas that can be made from the given choices.

We have the <em><u>COUNTING PRINCIPLE :</u></em>

If we have m ways of doing one task and n ways of doing the second task, then the number of ways in which we can do both the tasks together is m×n.

Therefore, the number of different pizzas that can be made from the given choices is

$N=3\times2\times4=24.$

Thus, the total number of pizzas that can be made from the given choices is 24.

5 0

4 years ago

Weights of animals which are modeled by N(420 lbs, 50 lbs.)

mariarad [96]

Answer:

how's your day

Step-by-step explanation:

how's your day been I hope it's been good

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2 years ago

An 80-foot rope from the top of a tree house to the ground forms a 45° angle of elevation from the ground. How high is the top o

lina2011 [118]

Answer:

56.6m

Step-by-step explanation:

Using SOH = opp/hyp

Where θ = 45°

Hpy = 80m

Opp = ?

Sin θ = opp/hpy

Sin 45 = opp/ 80

Sin 45 × 80 = opp

0.7071 × 80 = opp

Opp = 56.568

~ 56.6m

Hence the height of the top of the tree is 56.6m

4 0

3 years ago