What is the measurement of this angle?

Mathematics

1 answer:

Mice21 [21]2 years ago

3 0

I can’t see it can you add a better picture

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What is the difference between rate and unit rate

dalvyx [7]

Unit rate is in the quantity of one.
2/1 is a unit rate
6/3 is a rate
4/1 is a unit rate

4 0

3 years ago

Hannah factored the expression 24xy + 15y. Her work is shown below.

Cloud [144]

the correct answer on edge is;

a. she divided by 3 instead of the GCF.

d. she didn’t complete step 4 and use the distributive property to be sure the expressions are equivalent.

e. she didn’t undistribute the GCF from the original expression.

welcome!

4 0

2 years ago

Read 2 more answers

Apply the distributive property to create an equivalent expression. 5•(-2w-4)

xeze [42]

=5(-2w)-5x4

=-5x2w-5x4

answer: =-10w-20

4 0

3 years ago

Please help!! What Find the Error and explain why it is wrong!

Nata [24]

Answer:

First image attached

The error was done in Step E, because student did not multiply $2\cdot x -8$ by the negative sign in numerator. Step E must be $\frac{2\cdot x -5}{(x+4)\cdot (x-4)}$ .

Second image attached

The error was done in Step C, because the student omitted the $2\cdot a \cdot b$ of the algebraic identity $(a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}$ . Step C must be $5\cdot x = x^{2}+4\cdot x + 4$

Step-by-step explanation:

First image attached

The error was done in Step E, because student did not multiply $2\cdot x -8$ by the negative sign in numerator. The real numerator in Step E should be:

$3-(2\cdot x -8)= 3-2\cdot x+8 = 11-2\cdot x$

Hence, Step E must be $\frac{2\cdot x -5}{(x+4)\cdot (x-4)}$ .

Second image attached

The error was done in Step C, because the student omitted the $2\cdot a \cdot b$ of the algebraic identity $(a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}$ . Step C must be $5\cdot x = x^{2}+4\cdot x + 4$

And further steps are described below:

Step D

$x^{2}-x+4 = 0$