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muminat
2 years ago
5

Can some one help me i have no idea what this is

Mathematics
2 answers:
ahrayia [7]2 years ago
5 0

Answer:

b=-25

Step-by-step explanation:

10= -2/5b

10=      -2/5b

------    -------

-2/5       -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

Genrish500 [490]2 years ago
3 0

Answer:

b=-25

Step-by-step explanation:

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N is a positive integer.Explain why n(n-1) must be an even number.
V125BC [204]

Answer:

n and (n - 1) are consecutive integers.

Step-by-step explanation:

We are given 'n', a positive integer.

This 'n' can either be odd or even.

Case I:

When 'n' is odd

The n - 1 is even.

Note that the product of odd and even is always even. That is the product of n and (n - 1) is even.

Case II:

when 'n' is even

Then n - 1 is odd.

Again, using the similar logic we can say that the product of n and n - 1 should be even because here, 'n - 1' is even and 'n' is odd.

4 0
3 years ago
The cost of the muffin mix is $1.29 for 0.8 ounces what is the unit rate
rewona [7]
$1.032: 1 ounce


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3 0
3 years ago
Solve for Xin the equation x^2-12+36=90
Hunter-Best [27]

X= + or- square root 66 i solved using the pq formula but u can also use the quadratic formula as well and the square root formula but I'ma show u how to solve it with pq it's on this image hope it helps and mark me brainliest

7 0
3 years ago
Read 2 more answers
I Need Help On This
disa [49]

Answer:

The first blank: not equal

The 2nd blank: not right triangle (it's acute triangle)

The 3rd blank: equal

The 4th blank: it's right triangle

Step-by-step explanation:

4^2 = 3^2 + 3^2

<=> 16 = 9 + 9

<=> 16 = 18 ( nonsense)

so triangle LKJ is not right triangle

5^2 = 4^2 + 3^2

<=> 25 = 16 + 9

<=> 25 = 25 ( make sense)

so triangle ABC is right triangle

Done!! :))

6 0
3 years ago
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DIA [1.3K]

Answer:

-37

Step-by-step explanation:

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7 0
2 years ago
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