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2 years ago

Use properties of operations to write two equivalent expressions for 13(4 + x).

Mathematics

1 answer:

lesantik [10]2 years ago

6 0

Answer:

13(4+x)

=52+13x

Step-by-step explanation:

13 multiplies the 4 and x.

then 13 multiply 4 is 52 while 13 multiply x 13x.

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X^2+16x+64 can anyone show the work for this and find the factor.

Alexandra [31]

Answer:

should i simplify it? or factorise it?

I guess its factorise! So i m factorising!

x^2+16+64

(x)^2+2×x×8+(8)^2

(x+8)^2

=(x+8)(x+8)

8 0

2 years ago

Find the value of x (sines and cosines)

Sav [38]

You would begin by choosing which trigonometric function to use.
In this case, you would use sine.

Sine is opposite over hypotenuse.
Opposite of the 35 degree angle is 18, and you want to find the hypotenuse which is x.

sin(35) = $\frac{18}{x}$ (multiply x to both sides)
x sin(35) = 18 (divide sin(35) to both sides)
x = 31.38204...

So, therefore x = 31.38. I don't know what decimal point you're supposed to round to, so I'm gonna guess the hundredths place. :)

3 0

3 years ago

Positive integers are whole numbers that are greater than zero true or false

cestrela7 [59]

False they don't have to be whole numbers. As long as they're greater than 0

4 0

3 years ago

Read 2 more answers

Find the volume of each figure. Round your answers to the nearest hundredth, if necessary

SCORPION-xisa [38]

Answer:

666.67π .ft^3

here's your solution

=> radius of cone = 10 ft

=> height of cone = 20 ft

=> volume of cone = πr^2h/3

=> putting the value of radius and height

=> volume = 10^2*20/3π

=> volume = 666.67π .ft^3

hope it helps

5 0

2 years ago

What is the slope of the line through A(2, 6) and B(8, -1)

zimovet [89]

A. -6/7

Because:
(2,6) (8,-1)

(x1,y1) (x2,y2)

x1 = 2. Y1=6. X2=8. Y2= -1.

Equation for slope is m = y2-y1
x2-x1
-1-6 = -7
8-2=6

5 0

3 years ago