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Dvinal [7]
3 years ago
9

Need help don’t know what to do I’m confused

Mathematics
2 answers:
umka21 [38]3 years ago
5 0

Answer:B

Step-by-step explanation:

Not sure but the math came out like that.

mr Goodwill [35]3 years ago
3 0

Answer: Second one

Step-by-step explanation:

a(b-c)=d

Solving for c

ab-ac=d

ab=d+ac

ab-d=ac

ab-d/a=c

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What is the slope of these coordinates (2,30), (5,75).
Citrus2011 [14]

Answer:

45/3 or 15 simplified

Step-by-step explanation:

so b. 15

5 0
3 years ago
Read 2 more answers
Troy is at most 5 years older than 3 times Levi’s age. If Troy is 29 years old, which inequality best represents x, Levi’s age?
otez555 [7]

Answer:

15

Step-by-step explanation:

Levi's age is 15 because they said the at troy is at most 5 years older than 3 times Levi's age so you multiply 5x3=15 so she is 15

7 0
3 years ago
How to solve the above simultaneous equation?​
soldier1979 [14.2K]

Answer:

C -2 or 1

Step-by-step explanation:

So from the equation you have x^2-x-1=-2*x+1

x^2-x-1+2*x-1=0

x^2 +x -2 =0

D= 1^2 -4*(-2)= 1+8=9

x = (-1+-3)/2

So x is either (-1+3)/2=2/2=1

or (-1-3)/2=-2

4 0
3 years ago
AAAAHHHHHHHH!!!!!!!!! MATH IS HARD ​
Rama09 [41]

Answer:

relationship between base and hypotenuse is given cos angle

cos 20=b/h

cos20=x/160

x=cos20×160=150.35=150ft is your answer

Step-by-step explanation:

try yourself

know the basic concept

4 0
4 years ago
Solve this using the quadratic formula. Show work<br><br> 2x^2+7x−5=0
kozerog [31]
Multiply the numbers (2*2=4)
=\frac{-7+\sqrt{7^2-4\cdot \:2\left(-5\right)}}{2\cdot \:2}

Apply the rule 
\sqrt{7^2+2\cdot \:4\cdot \:5}

7^2 =49
=\sqrt{49+2\cdot \:4\cdot \:5}

Multiply
\sqrt{49+40}

Add
\sqrt{89}

=\frac{-7-\sqrt{89}}{4}

Final solution:
x=\frac{-7+\sqrt{89}}{4},\:x=\frac{-7-\sqrt{89}}{4}

8 0
4 years ago
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