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Katena32 [7]
3 years ago
12

PLz help me and show your work.

Mathematics
1 answer:
Artemon [7]3 years ago
8 0

5 \sqrt{18}  -  \sqrt{32}  \\= 5 \sqrt{9 \times 2}  -  \sqrt{4 \times 4 \times 2} \\  = 5 \times 3 \times  \sqrt{2}    - 2 \times 2 \times  \sqrt{2}  \\  = 15 \sqrt{2}  - 4 \sqrt{2} \\  =  \boxed{11 \sqrt{2} }

<h3>11√2 is the right answer.</h3>

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The hcf of 55 and 99 is expressible in the form of 55m - 99 then the value of m is​
GuDViN [60]

Answer:

2

Step-by-step explanation:

HCF(55,99)= 11

  • 55m-99=11
  • 55m=110
  • m=110/2
  • m=2
5 0
3 years ago
Find the measure of the indicated angle to the nearest degree.
kykrilka [37]

9514 1404 393

Answer:

  40°

Step-by-step explanation:

The side adjacent to the angle of interest and the hypotenuse are given, so the cosine relation is relevant.

  Cos = Adjacent/Hypotenuse

  cos(?) = 46/60

  ? = arccos(46/60) ≈ 39.9445°

  ? ≈ 40°

5 0
3 years ago
What is the rest of the pattern of 22,17,12,7?
yanalaym [24]

Answer:

22, 17, 12, 7, 2

Step-by-step explanation:

The next number is 2 because you're subtracting 5 from each number.

6 0
3 years ago
The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute.
creativ13 [48]

According to the given table the line of best fit is

f(x)=4.54x+77.84

The term "line of best fit" describes a line that passes across a scatter plot of data points and best captures their connection. Statisticians often utilise regression analysis software or manual computations to arrive at the geometric equation for the line using the least squares approach. A straightforward linear regression study of two or more independent variables will provide a straight line. 

Hence, as asked by the question we need to find the time at which the tempurature will become 100°C.

To find that let us put f(x)=100 and find out the value of x for which it is satisfied.

4.54x+77.84=100

⇒x=\frac{100-77.84}{4.54}=4.88

⇒x≈5

Therefore the time at which the tempurature is 100°C is 5 minutes.

Learn more about "line of best fit" here-

brainly.com/question/14279419

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4 0
2 years ago
Complete the factorization of 3x2 – 5x 2. which two factors can be multiplied together to make this trinomial?
EastWind [94]

The two factors multiplied together to make a trinomial is (x-1)(3x-2).

Given equation is 3x²-5x+2.

An algebraic equation which of the second degree in x is known as quadratic equation. The quadratic equation in its standard form is ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.

In the given equation,

Multiply the first coefficient 3 with the last coefficient 2  so we get 2×3=6

Use any two numbers which on multiply give 6 and on adding or subtracting give -5.

Such two numbers are -2 and -3

On multiplying, (-3)×(-2)=6

On Adding, -3-2=-5

So, break -5x into -3x and -2x and we get

3x²-3x-2x+2

Taking out 3x common from the first two terms and -2 from the last two terms as

3x(x-1)-2(x-1)

Taking out the common term (x-1) as common and get

(x-1)(3x-2)

Hence, the two factors of the equation 3x²-5x+2 that can be multiplied together to make this trinomial is (x-1)(3x-2).

Learn more about factorization from here brainly.com/question/22673662

#SPJ4

7 0
2 years ago
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