Ask question

Ask question

All categories

3 years ago

15

I need help with question 9 please!

2 answers:

Aloiza [94]3 years ago

7 0

You have a right angle so you would find 90-46=44 then you work backwards:subtract 4 from 44 which is 40 then divide by 2 you will get 20 your answer is A

ankoles [38]3 years ago

3 0

The answer is A. 20 you know that the equation plus the angle that equals 46 are equal to 90 degrees so..... use the formula
2x+4+46=90

simplify by adding 4 and 46
2x+50=90
subtract 50 from both sides
2x=40
divide each side by 2
x=20

and that's how you get your answer

You might be interested in

Simplify 4^2 * 4^5 in scientific notation

iogann1982 [59]

4/2 * 4/5 = (4*4) ^ (2*5) = 1 3/5 = 1.6

4 0

3 years ago

Solve the system of equations by substitution.<br> X + y = 21<br> y = 6x

eimsori [14]

Answer:

x = 3

y = 18

Step-by-step explanation:

you replace y with 6x

x + 6x = 21

combine like terms

7x = 21

divide both sides by seven

x = 3

then you plyg 3 into the other equation

y = 6(3)

y= 18

5 0

3 years ago

Read 2 more answers

What point is plotted on the graph? (9, 9) (9, 8) (8, 9) (8, 8)

elixir [45]

Answer:

It's 9,8

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need help on this question I’m confused I think a &b are the same and c &d are different but I’m not to sure !

Nina [5.8K]

<h3>Answer: They're all the same</h3>

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

Reason:

$2^6$ means we have 6 copies of "2" multiplied out as shown in choice B. That explains how A and B are the same, and we can say

$2^6 = (2*2*2)*(2*2*2)$

The parenthesis are optional, but I find they're handy to count the '2's easier.

----------------

Now notice that

$2^3 = 2*2*2$

So,

$2^6 = (2*2*2)*(2*2*2)\\\\2^6 = (2^3)*(2^3)\\\\2^6 = (2^3)^2\\\\$

The last step is possible because we have two copies of $2^3$ multiplied together.

This shows that choice C is equivalent to A and B.

-------------------

Lastly,

$2^6 = (2*2*2)*(2*2*2)\\\\2^6 = (2*2)*(2*2)*(2*2)\\\\2^6 = (2^2)*(2^2)*(2^2)\\\\2^6 = (2^2)^3\\\\$

The jump to the last step is possible because we have three copies of $2^2$ multiplied together.

This shows choice D is equivalent to the others.

All four expressions are the same.

They represent different ways to say the same number. That number being 64.

3 0

2 years ago

Select from the drop-down menu to correctly complete the statement.

Lera25 [3.4K]

The answer is Not Similar.

7 0

3 years ago

Read 2 more answers