HELPPPP PLEASE MATHS QUESTION

USE SOH CAH TOA

Answer: It’s 81

Step-by-step explanation:

I think it’s 81 because u use the distributive property (xy)^a=x^a y^a

and in the situation you change it into 3^4(x^7)^4 and u simplify 3^4 and get 81 and then just multiply 7 and 4 and your answer is 81x^28. 81 is c in the equation

We want to find an equivalent expression to  (3x^7)^4 of the form cx^n, and we want to find the value of c.

The equivalent expression is:

[tex]81*x^{28}[/tex]

So the value of c is:

c = 81.

First, we need to remember two properties of exponents.

The exponents are distributive under multiplications.

And we know that:

[tex](a^n)^m = a^{n*m}[/tex]

Using these two properties, we can rewrite:

[tex](3x^7)^4 = (3^4)*(x^{7*4}) = 81*x^{28}[/tex]

So the equivalent expression is:

[tex]81*x^{28}[/tex]

Then we have c = 81.

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Bob's linear speed is higher than Jack's because the radius of the circle

around which Bob rotates is larger.

Responses:

Given:

The rotational speed of the merry go round = 6 revolution per minute

Jack's distance from the center = 10 feet

Bob's distance from the center = 14 feet

The angular speed, ω, of the merry-go-round is found as follows;

Which gives;

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Answer:

[tex]x^{2}[/tex]-25

Step-by-step explanation:

formula for areas of rectangles= width x height

width=x-5

height=x+5

(x-5)(x+5)= [tex]x^{2}[/tex]-5x+5x-25

since the 5x's cancel out each other

              =[tex]x^{2}[/tex]-25 will be the answer

The area of rectangle is [tex](x^{2} -25)[/tex] unit square.

The area of rectangle is product of length and width.

         [tex]Area = length*width[/tex]

Given that length is [tex](x+5)[/tex] and width is [tex](x-5)[/tex].

    [tex]Area=(x+5)*(x-5)\\\\Area=x^{2} -5x+5x-25=x^{2} -25[/tex]

Hence, the  area of rectangle is [tex](x^{2} -25)[/tex] unit square.

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Answer:

Step-by-step explanation:

Answer:

Larger number: 18

Smaller number: 9

Step-by-step explanation:

Answer:

9 and 18

Step-by-step explanation:

9 x 2 =18

9 + 18 = 27

Answer:

7. m and n = √8

8. a and b = √2

9 x and y = √1/8

10. x and y =5/√2

11. x and y = 3/√2

12. x and y = 9/√2

Step-by-step explanation:

Answer:

7. m and n = √8

8. a and b = √3

9 x and y = √1/8

10. x and y =2/√5

11. x and y = 3/√2

12. x and y = 8/√2

Step-by-step explanation:

i dont know i had some help from my older brother i hope this is right!

Answer: No, the scenario won't earn you enough money

====================================================

Explanation:

You work 4 hours with your uncle, at $8 an hour, so that means you earn 4*8 = 32 dollars.

You work 12 hours online, at $4 an hour, so you earn 12*4 = 48 dollars.

In total, you earn 32+48 = 80 dollars overall when combining the two lines of work.

The total 80 is smaller than 120, so this scenario isn't possible if you want to aim for $120 or more. You'll need to work more hours somehow.

Answer:

6,200 divided by 4 = 1500

Step-by-step explanation:

Answer:

x = 1 , y =− 2

Step-by-step explanation:

Multiply each equation by the value that makes the coefficients of  

x  opposite.

( − 4 ) ⋅ ( − 7 x − 8 y ) = ( − 4 ) ( 9 ) ( 7 ) ⋅ − 4 x + 9 y ) = ( 7 ) ( 22 )

Simplify.

y=-2

x=1

Answer:

20.25

Step-by-step explanation:

100%->45

100-55=45

45%->20.25

Answer:

99 members

Step-by-step explanation:

Trust me it 99 I done it on mathswatch

The total number of members of the club will be 128 members.

A histogram exists a display of statistical information that utilizes rectangles to exhibit the frequency of data items in successive numerical intervals of equivalent size.

b) The total number of members of the club will be:

= 25 + 38 + 32 + 24 + 9

= 128

The total number of members of the club will be 128 members.

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Answer:

There are many to do this, but the simplest way is to put the fractions into a calculator (16*14)+9 ÷ 16 = 14.5625 . and (16*11)+13 ÷16 = 11.8125

If they are looking for which one is higher?  The birdhouse.  

If they want the difference? Subtract one from the other = 2.75 units

Step-by-step explanation:

Answer:

15.5 in

Step-by-step explanation:

perimeter = all way round

62 / 4 (sides) = 15.5

Answer:

a=10.5

Step-by-step explanation:

Answer:

The boat will travel 292.8 miles on 24.4 gallons.

Step-by-step explanation:

How I figured this out was I divided 378 by 31.5 which got me 12. I then took 12 and multiplied it by 24.4

a/q b/a=70 so ans will be 210

Answer:

Exact form: x = - 1/2

Decimal form: x = - 0.5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

x=-1/2

Step-by-step explanation:

Hope I helped!

Answer:

25 times

Step-by-step explanation:

To find how many times he visited, plug in 85 as y and solve for x:

y = 3x + 10

85 = 3x + 10

75 = 3x

25 = x

So, Carlos visited the gym 25 times

Answer:

only Katie is right

Step-by-step explanation:

first, find the nth rule using the equation n = a + (n - 1)d

a = first term (here, it's 22)

n = the position of a term

d = the constant difference between each term (here, it's -5 since each term reduces by 5)

put these in and then simplify:

n = a + (n - 1)d

n = 22 + (n - 1)(-5)

n = 22 - 5n + 5

n = -5n + 27

this can be rewritten as n = 27 - 5n, which means therefore that only Katie is right. hope this helps!

Answer: Only Katie

Reason: Only Katie is correct!

Answer:

i think 0.4

Step-by-step explanation:

Answer:

5x-3

Step-by-step explanation:

This is linear because the numbers are changing at a constant rate (of 5)

We can also see that when x=0 y= -3 which means that in our equation

y=mx+b

-3 =b

I said prior that the rate of change is 5 which means that our slope is 5

which means that our equation looks like

5x-3

Answer:

Triangle 1 - 4

Triangle 2 - 10

Step-by-step explanation:

To find the missing side lengths of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem states that: a² + b² = c². In this equation, a and b are legs, and c is the hypotenuse.

Using this to solve triangle 1, you get the equation: a² + 3² = 5² or a² + 9 = 25. To solve for a², you subtract 9 from both sides to get a² = 16. To solve for a, find the square root of 16, which is 4.

Using the Pythagorean Theorem to solve for triangle 2, you get the equation: 6² + 8² = c² or 36 + 64 = c². Add 36 + 64 to get 100 = c². Find the square root of 100 to solve for c. The square root is 10.

Hope it helps!

Answer:

Parralel lines

Answer:

0

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

just use logic it really helps you have to think things through

Answer:

4 feet

Step-by-step explanation:

?+8=12

4+8=12

12*4=48

Making the answer 4 feet

Answer:

5√5

Step-by-step explanation: