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Anna007 [38]
3 years ago
5

Please help,It will be so grateful...Thank you,I appereicate it

Mathematics
1 answer:
Margarita [4]3 years ago
6 0
What do you need help in?
You might be interested in
Find the length of side x using the Law of Cosines.
grin007 [14]

Answer:

The length of side x is 22.91

Step-by-step explanation:

As per law of cosine

X = \sqrt{a^2 + b^2- 2*a*bcos\gamma}

Where

gamma = 56 degrees

a = 20

b = 27

Substituting the given values in above equation, we get -  

X = \sqrt{20^2 + 27^2 - 2*20*27*cos 56} \\X = 22.91

Hence, the length of side x is 22.91

7 0
4 years ago
What is the unit rate of y=-2x
maksim [4K]
<span>The answer to this is x  =  - y / 2</span>
4 0
4 years ago
First right answer for both gets brain
Flura [38]
102+56= 158×2=316+338=654
she spent 654 on rent

71+7=78
y=x/4
78=x-y
plug in
78=x-x/4
78=4x/4-x/4
78=3x/4
312=3x
x=104
he got 104 from mowing the lawn
8 0
3 years ago
Is (0,0) a solution to this system y&gt; x2+x-4 y &lt;x2+2x+1
Aliun [14]

Answer:

Yes, the ordered pair (0,0) is a solution of the system

Step-by-step explanation:

we have

y\geq x^{2}+x-4 ----> inequality A

y < x^{2} +2x+1 ----> inequality B

we know that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

<u>Verify</u>

For x=0,y=0

<em>Inequality A</em>

0\geq (0)^{2}+0-4

0\geq -4 ----> is true

so

The ordered pair satisfy inequality A

<em>Inequality B</em>

0 < (0)^{2} +2(0)+1

0 < 1  ----> is true

so

The ordered pair satisfy inequality B

therefore

The ordered pair (0,0) is a solution of the system

7 0
3 years ago
Read 2 more answers
Given the original statement "If a number is negative, the additive inverse is positive,” which are true? Select three options.
Sergeu [11.5K]

Answer:

The three options are;

1) If p = a number is negative and q = the additive inverse is positive, the original statement is p → q

2) If p = a number is negative and q = the additive inverse is positive, the original statement the inverse of the original statement is ~p → ~q

3) If q = a number is negative and p = the additive inverse is positive, the contrapositive of the original statement is ~p → ~q

Step-by-step explanation:

Given a statement if p then q, we have, p → q. The converse of the original statement is then, if q, then p while the inverse of the original statement is then if not p then not q, and the contrapositive statement is then if not q then not p

Mathematically, we have;

The given conditional statement;

If a number is negative, the additive inverse is positive which can be expressed as follows;

The conditional statement is p → q

The converse statement is q → p

The inverse statement is ~p → ~q

The contrapositive statement is ~q → ~p

Therefore, we have;

1) The conditional statement, if p = a number is negative and q = the additive inverse is positive, the original statement which is a conditional statement is therefore p → q

2) If p = a number is negative and q = the additive inverse is positive, the original statement, which is a conditional statement is p → q, the inverse of the original conditional statement is therefore, ~p → ~q

3) If q = a number is negative and p = the additive inverse is positive, the original statement, which is a conditional statement is therefore, q → p, the contrapositive of the original conditional statement  is therefore ~p → ~q.

3 0
3 years ago
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