2 years ago

What’s 9+10 A:21 B:19 C:12 D:21

Mathematics

1 answer:

krek1111 [17]2 years ago

7 0

Answer:

Step-by-step explanation:

10 + 9 = 19

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Which degree of rotation is equivalent to a 90 degree clockwise rotation?

vodomira [7]

The answer will be A....

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2 years ago

Evaluate 8j - k + 14 when j = 0.25 and k = 1.

pantera1 [17]

Steps to solve:

8j - k + 14; j = 0.25 and k = 1

~Substitute

8(0.25) - (1) + 14

~Simplify

2 - 1 + 14

~Subtract

1 + 14

~Add

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2 years ago

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DaniilM [7]

Answer:

Step-by-step explanation:

b(a + 1) + a = b*a + b + a = ab + b + a

1) b(2a +1 ) = b*2a + b*1 = 2ab + b Not equivalent.

2)a + (a +1)*b = a + ab+ b Equivalent

3) (a +1)(b+ a) = a*(b +a) + 1*(b+a) = ab+ a² +b + a Not equivalent.

4) (a + 1)b + a = ab+ b + a Equivalent

5) a + b(a+1) = a +ab + b Equivalent

6) a + (a +1) + b = a + a + 1 + b = 2a + 1 +b Not equivalent.

7) a(b +1) + b = ab + a + b Equivalent

5 0

3 years ago

The slopes of perpendicular line segments are 1/3 and d/5. What is the value of d

a_sh-v [17]

If 2 lines (or line segments) are perpendicular, then the product of their slopes is equal to -1.

Thus, since the given line segments are perpendicular, we have:

$\displaystyle{ \frac{1}{3}\cdot \frac{d}{5}=-1$ .

Multiplying both sides of the equation by 15, we get d=-15.

Answer: d=-15

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2 years ago

Will mark if correct xo.

RUDIKE [14]

Answer: y=7.3

Y=-7/16

Step-by-step explanation:

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2 years ago

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