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2 years ago

A student would write an equation such as 2x + 38 = 90 for which set of angles?

Mathematics

2 answers:

Eva8 [605]2 years ago

4 0

Answer:

Step-by-step explanation:

bonufazy [111]2 years ago

3 0

Answer:

Figure (c)

Step-by-step explanation:

a). Angles in the figure attached are the linear pair of angles.

Since, sum of the linear pair of angles is 180°.

2x + 38 = 180°

b). Angles given in this figure are the vertically opposite angles.

Since, vertically opposite angles are equal in measure.

2x = 38°

c). There are three angles given the picture.

Since these angles are formed at a point of a line, sum of angles will be 180°.

90° + 38° + 2x = 180°

2x + 38 = 180 - 90

2x + 38 = 90°

Therefore, figure (c) shows the equation.

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Which of these are characteristics of a scientific law? Select all that apply.

Nata [24]

Answer:

explanation of facts, how nature works, often changes, and will often stay true

Step-by-step explanation:

7 0

3 years ago

HELP PLSSS<br><br>solve the inequality -9x/11-7<-5

Flauer [41]

Answer:

x < -22/9

Step-by-step explanation:

(-9x/11) - 7 < -5 (add 7 to both sides)

(-9x/11) < -5 + 7

-9x/11 < 2 (multiply both sides by 11)

-9x < 2(11)

-9x < 22 (divide both sides by -9)

x < -22/9 (answer)

edit: typos galore!

7 0

3 years ago

0/1 For positive integer n, n? = n! · (n − 1)! · … · 1! And n# = n? · (n − 1)? · … · 1?. What is the value of 4# · 3# · 2# · 1#?

MakcuM [25]

Answer:

331776

Step-by-step explanation:

Since n? = n! · (n − 1)! · … · 1! And n# = n? · (n − 1)? · … · 1?

Then 4# = 4? · (4 − 1)? · (4 − 2)?· 1?

= 4? · 3? · 2?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 4? = 4! · (4 − 1)! · (4 − 2)! · 1! = 4! · 3! · 2! · 1! = 288

Thus, 3? = 3! · (3 − 1)! · 1! = 3! · 2! · 1! = 12

Also, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

and 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 4# = 4? · 3? · 2?· 1? = 288 × 12 × 2 × 1 = 6912

We now find 3#

3# = 3? · (3 − 1)? · 1? = 3? · 2?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 3? = 3! · (3 − 1)! · 1! = 3! · 2! · 1! = 12

Thus, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

and, 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 3# = 3? · 2?· 1? = 12 × 2 × 1 = 24

We now find 2#

2# = 2? · (2 − 1)? · 1? = 2? · 1?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 2# = 2?· 1? = 2 × 1 = 2

We now find 1#

1# = 1? · 1? = 1? · 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

And, 1# = 1? · 1? = 1 × 1 = 1

So, 4# · 3# · 2# · 1#? = 6912 · 24 · 2 · 1? = 331776

7 0

3 years ago

Which of the following statements is true about the number 30/2?

olga nikolaevna [1]

Answer:

It's A :)

Step-by-step explanation:

30/2 is 15

15 is a whole number so it applies to everything except for irrational numbers

Hope this helps :)

5 0

2 years ago

Simplify. t^-6 * t^2

Deffense [45]

<span>t^-6 * t^2
= t^-4

hope it helps</span>

8 0

3 years ago