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leva [86]
3 years ago
7

How do i solve this im totally stuck

Mathematics
1 answer:
inysia [295]3 years ago
5 0
The answer is 6 sqrt(5).

When adding or subtracting radicals with coefficients you simply add/subtract the coefficients. If you are familiar with functions with variables, set x = sqrt(5) then we have

18x - 12x

Now it looks like something you are familiar with and it seems like an obvious answer

6x

now replace the x with the sqrt(5) and you get

6sqrt(5)
You might be interested in
Usqqe format HTH to mean that the first toss is heads, the second is tails and the third is heads more than one element in the s
Scrat [10]

SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: State the number of outcomes possible for three tossing of a coin

Since a coin has two possible outcomes and is tossed three times, the total outcomes will be:

\begin{gathered} 2^3=8 \\ 8\text{ outcomes} \end{gathered}

STEP 2: Find the number of sample spaces for the three tosses

STEP 3: Get the outcomes of the events for which the second toss is tails

Hence, the answers are given as:

Sample Space:

\lbrace HHH,HHT,HTH,HTT,THH,THT,TTH,TTT\rbrace

The event that the second toss is tails:

\lbrace HTH,HTT,TTH,TTT\rbrace

4 0
1 year ago
Help please :( 4^5 x 4^ -7 divide by 4^ -2 ?
alexandr1967 [171]

Answer:

4⁻⁴

Step-by-step explanation:

4⁵ × 4⁻⁷ ÷ 4⁻²

⁺ ⁵ ⁻ ⁷

= ⁻²

⁻ ² ⁻ ²

= ⁻ ⁴

4⁻⁴

7 0
3 years ago
Multiply............
ZanzabumX [31]
Hey there!

In order to multiply these polynomials together, you will take both terms of the first polynomial and multiply them by each term in the second polynomial. You can then combine any like terms to get your final answer. 

(2x² – 5x)(4x² – 12x + 10)

2x² × 4x² = 8x⁴
2x² × –12x = –24x³
2x² × 10 = 20x²

–5x × 4x² = –20x³
–5x × –12x = 60x²
–5x × 10 = –50x

Write all of these terms together. You can rearrange the similar ones to be next to each other. 

8x⁴ – 24x³ – 20x³ + 20x² + 60x² – 50x

Just add or subtract the terms to simplify, if they can be.

8x⁴ – 44x³ + 80x² – 50x

(8x⁴ – 44x³ + 80x² – 50x) will be your final answer. 

Hope this helped you out! :-)
8 0
3 years ago
Read 2 more answers
If m_PQT=(3x+47) and m_SQR=(6x+25), find m_SQR
marishachu [46]

Answer:

6x+25

Step-by-step explanation:

here is given that

7 0
2 years ago
Pls help me ill try to give brainliest
Amanda [17]

Answer:

x = 20°

Step-by-step explanation:

by angle sum property of triangle

30 + 130 + x = 180

x = 180 - 160

<h2>x = 20°</h2>
7 0
3 years ago
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