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2 years ago

What number must be added to -9 to equal +4?

Mathematics

1 answer:

Vlad1618 [11]2 years ago

8 0

Answer:

$13$

Step-by-step explanation:

let the unknown number be x

 $x + ( - 9) = 4 \\ x - 9 = 4 \\ x = 4 + 9 \\ x = 13$ 

hope this helps you.

Can I have the brainliest please?

Have a nice day! 

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If the solutions of a quadratic equation are x = 7 and x = -5 write the possible trinomial these solutions could have derived fr

Butoxors [25]

X^2-2x-35
(X+5)(x-7)

4 0

3 years ago

What's the best Approximation? :3

musickatia [10]

Area of shaded region = Area of larger circle - Area of smaller circle.

We know, Area of a Circle = πr²
So, A = πr₁² - πr₂²
A = π (r₁² - r₂²)
A = π(10.2² - 5.4²)
A = 3.14 (104.04 - 29.16)
A = 3.14 (74.88)
A = 235.12

In short, Your Answer would be 235.12 cm²

Hope this helps!

3 0

3 years ago

50 points increased by 26%

QveST [7]

50X0.26=13 than you would add them 50+13 which would equal 63

6 0

3 years ago

Read 2 more answers

Do i use SIN, COS, or TAN to find the missing lengths?

BaLLatris [955]

Answer:

Step-by-step explanation:

+ Because of a right triangle, so we can find them- the missing lengths:

+ sin(40)= GH/GF

so GH = GF * sin(40) = 88* sin (40) = 56.565= GH

+ cos( 40) = FH/GF

so FH= GF *cos(40)= 88* cos(40) = 67.412= FH

Have a good day

3 0

2 years ago

Please help quickly !

Ira Lisetskai [31]

Answer:

75 - 52.5 = x

Step-by-step explanation:

$\because 52.5 + x = 75\\\therefore x = 75 - 52.5\\\therefore 75 - 52.5 = x \\$

is the correct answer.

7 0

3 years ago