2 years ago

Evaluate the expression for a = 26, b = 10, c = 9, d = 19: a+b-c-d

Mathematics

1 answer:

Anettt [7]2 years ago

3 0

Answer:

Step-by-step explanation:

a+b-c-d

lets substitute the values of a, b, c and d in the equation:

26+10-9-19

so we have:

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2 years ago

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2 years ago

∠A and \angle B∠B are vertical angles. If m\angle A=(6x-11)^{\circ}∠A=(6x−11) ∘ and m\angle B=(5x+4)^{\circ}∠B=(5x+4) ∘ , then f

ICE Princess25 [194]

Answer: $\angle B=79^{\circ}.$

Step-by-step explanation:

When two lines cross each other , then the opposite angles are known as vertical angles.

Vertical angles are equal.

Here, ∠A and ∠B are vertical angles.

So, ∠A = ∠B

If $\angle A=(6x-11)^{\circ}$ and $\angle B=(5x+4)^{\circ}$

Then , $6x-11=5x+4$

Subtract 5x from both sides, we get

$x-11=4$

Add 11 on both sides, we get

$x=15$

Now , $\angle B=(5(15)+4)^{\circ}=79^{\circ}$

Hence, the measure of $\angle B=79^{\circ}.$

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2 years ago