Which expression is equivalent to sin(1.8x) sin(0.5x)

Answer: 3sqrt(2)

Step-by-step explanation:

d = sqrt[(3-0)^2 + (4-1)^2]

d = sqrt[9+9]

d = sqrt(18) = 3sqrt(2)

Answer:

15

Step-by-step explanation:

Because 15 -3 will give you 12

Answer:

the y intercept is -4 or (0,4)

Step-by-step explanation:

To find the y intercept you have to make x zero, and vice versa. So:

0-3y = 12

-3y = 12

y = 12/-3

y = -4

the y intercept is -4 or (0,4)

Answer:

1.Find the Least Common Denominator (LCD)

2.Find the equivalent fractions.

3.Add or subtract the fractions and add or subtract the whole numbers.

4.Write your answer in the lowest terms.

Step-by-step explanation:

Step-by-step explanation:

So first, you turn the mixed numbers into improper fractions. Then you change the denominators to the same number. Finally, you add or subtract.

Example:

4 1/5- 2 1/2= 21/5- 5/2=42/10-25/10=17/10=1 7/10

Answer: x = 17

Step-by-step explanation:

1) Subtract 10 from both sides

40 = 2(x+3)

2) Divide both sides by 2.

20 = x + 3

3) Subtract 3 from both sides

17 = x

x = 17

Answer: x= 17

Step-by-step explanation:

17 plus 3= 20

then you multiply 20 times 2 (PEMDAS)

Then you get 40 and 40 + 10

equals 50

Answer:

The answer to this is: You click answer and then you just answer what the person asks and can i have brainliest?? please

Step-by-step explanation:

Answer:

For math I use my calculater :)

step-by-step explanation:

Answer:

D

Step-by-step explanation:

 36 pages divided by 4

Answer:

Third choice. 9/14

Step-by-step explanation:

3/4 x 6/7 = 18/28 = 9/14

Answer:

f(-3) = 7

Step-by-step explanation:

For these types of questions, you need to replace the x's in the equation with whatever is inside f(x)

So if its f(5) you would sub 5 into where all the x's are

Answer:

A

Step-by-step explanation:

I think

Answer:

66 tens

Step-by-step explanation:

66 hundreds is 6600, and if you divide it by 10, you get 660, or 66 tens.

Complete Question

The complete question is shown on the first uploaded image

Answer:

a

Yes the researcher can  conclude that the supplement has a significant effect on cognitive skill

b

[tex]d =  0.5778 [/tex]

c

The result of this hypothesis test shows that there is sufficient evidence to  that the supplement had significant effect.The measure of effect size is  large due to the large value of Cohen's d (0.5778 > 0.30 )

Step-by-step explanation:

From the question we are told that

  The sample size is  n=16

    The sample mean is  [tex]M  =  50.2[/tex]

    The standard deviation is [tex]\sigma  = 9[/tex]

    The  population mean is  [tex]\mu =  45[/tex]

     The level of significance is  [tex]\alpha =  0.05[/tex]

The null hypothesis is [tex]H_o  \mu =45[/tex]

The alternative hypothesis is [tex]H_a  \mu \ne 45[/tex]

Generally the test statistics is mathematically represented as

          [tex]z =  \frac{M -  \mu}{\frac{\sigma}{\sqrt{n} } }[/tex]

=>       [tex]z =  \frac{50.2 - 45}{\frac{9}{\sqrt{16} } }[/tex]

=>       [tex]z =  2.31 [/tex]

Generally the p-value is mathematically represented as

     [tex]p-value  =  2 *  P(Z >  z )[/tex]

      [tex]p-value  =  2 *  P(Z >  2.31 )[/tex]

From the z-table  

      [tex]P(Z >  2.31 ) = 0.010444[/tex]

=>     [tex]p-value  =  2 *  0.010444 [/tex]

=>     [tex]p-value  =  0.021 [/tex]

From the obtained values we see that [tex]p-value <  0.05[/tex]

 Decision Rule

 Reject the null hypothesis

Conclusion

There is sufficient evidence to conclude that the supplement has a significant effect on the cognitive skill of elderly adults

Generally the Cohen's d for this study is mathematically represented as

    [tex]d =  \frac{M  -  \mu}{\sigma }[/tex]

=>  [tex]d =  \frac{50.2 -45}{9 }[/tex]

=>  [tex]d =  0.5778 [/tex]

Answer:

distance left

Step-by-step explanation:

Answer:

4 gallons will be needed to paint an entire room

Answer:

Step-by-step explanation:

To do this, first add over the 2. That makes 4x≤8. Then divide by 4. That make x≤2

Answer:

x≤2

Step-by-step explanation:

4x-2≤6 add to 2 to both sides

4x≤8 divide both sides by four

x≤2

Hope this helps! :)

Answer:

he bought 3.5 pounds because 3.28 times 3.5 equals the cost

Step-by-step explanation:

Answer:

-15

Step-by-step explanation:

The required solution is 15.

It is required to find the solution.

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Given:

By the distance formula we get,

Distance between -3 and 12 is

=12-(-3)

=15

Therefore, the required solution is 15.

Learn more details about arithmetic here:

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Answer:

-2

Step-by-step explanation:

Just choose any two points and calculate the slope. The way to calculate the slope between two points (x1, y1) and (x2, y2) is (y2-y1)/(x2-x1)

Answer:

-4.5, -0.5, 0.3, 0.7, 2.3

Step-by-step explanation:

use a number line:

Answer:

Yes

Step-by-step explanation:

According to google the anser is yes.

Answer:

Step-by-step explanation:

Lin makes sparkling OJ using the ratio

3:4. Meaning 3L orange juice for every 4L sparkling water.

Noah makes sparkling OJ using the ratio 4:5. Meaning 4L orange juice for 5L sparkling water.

If we said that they both used 12L of orange juice,

Lin would have to use 16L of sparkling water

Noah would have to use 15L of sparkling water

So for the same 12L of orange juice, Lin uses more sparkling water.

Therefore her sparkling OJ would be more diluted (less orange flavour since you added more water) and more bubbly than Noah's.

Answer:

specify please

Step-by-step explanation:

Answer:

I have been trying to get this answer for the longest

Step-by-step explanation:

Answer:

-15

Step-by-step explanation:

First combine like terms, aka the variables

-5n+4n-7=8

-1n-7=8

Then, isolate the variable by adding 7 to both sides

-1n-7+7=8+7

-1n=15

Finally, solve by dividing both sides by -1

-1n/-1=15/-1

n=-15

Answer:

n = -15

Step-by-step explanation:

I'll try my best to explain how I solved this

Equation:

-5n + 4n -7=8

Add the light terms on each side:

-n -7 =8

Separate the variables from the numbers:

-n = 15

Do the operation necessary to solve it:

n = -15

Answer:

(0,-12)

Step-by-step explanation:

so you can get a app to graph it or graph it your self but that is the answer

Answer:

12.37 + 5.40 + 3.05 = $20.82

Answer:

y=3x-2

Step-by-step explanation:

3 is the coefficient of x (slope)

-2 comes after (y-int)

linear equation y = 3x-2 has a slope of 3 and a y-intercept of -2.

A line's slope can be determined by looking at its slope. The slope is determined mathematically as "increase over run" (change in y divided by change in x). There are several ways to find the slope, including standard form, slope-intercept form, and point-intercept form.

Given, A linear equation that has a slope of 3 and a  y-intercept of -2.

Y-intercept of -2 means at x = 0 y would be -2

The slope-intercept form of a line is

y = mx + c

where m = slope

c = constant

Substituting the values in the given equation

-2 = 0 * 3 + c

c = -2

thus, the equation of the line,

y = 3x -2

therefore, The y-intercept of the linear equation y = 3x-2 is -2, and its slope is 3.

Learn more bout slope here:

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Answer:

c

Step-by-step explanation:

Answer:

C is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

By using the Formula:

Areatriangle=10*5/2=25

Areasquare=5*5=25

Total Area is: 25+25=50

It will be nice if you give me brainliest.Good luck!

Answer:

50cm²

Step-by-step explanation:

Square- length x breadth

           =5cmx 5cm

           =25cm²

Triangle- ¹/₂ x base x perpendicular height

            = ¹/₂x 5cm x 10cm

            =25cm²

Square-   25cm²

Triangle-+25cm²

total area- 50 cm²

I hope it helps

Thank U

Answer:

No it doesn't.

Step-by-step explanation:

Answer:

four more than 1/3 would be 1 and 2/3

Step-by-step explanation:

9514 1404 393

Answer:

  (1/3)x +4

Step-by-step explanation:

One-third x is ...

  (1/3)x

Four more than that is ...

  (1/3)x +4

_____

Additional ways this can be written

  1/3x +4

  4 +1/3x

  x/3 +4

  4 +x/3

Answer:

50% take 37/74 ×100 to get the answer

The correct answer is 50.trust me it is