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3 years ago

5. Add or subtract

1 answer:

6 0

5. (M^2 - m +3) + (m +1) =
(m^2) (- m + m) + (3 + 1) =
m^2 + 4
Either your options are wrong or you might have put the wrong sign somewhere?

6. <span>(5x^2 + x - 3) - (-2x^3 + 4) =
(- 2x^3) + (5x^2) + (x) - (3 +4) =
-2x^3 + 5x^2 + x + 1
Answer: B)</span>

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Please answer questions 3 and 4 :))

Gnoma [55]

1.) D
2.) A................

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3 years ago

In △PKQ, PK = KQ = 12, m∠P = 35º. Find PQ.

Neporo4naja [7]

The length of PQ is 19.66 units

Step-by-step explanation:

The given is:

1. PK = KQ = 12

2. m∠P = 35º

We need to find the length pf PQ

∵ PK = KQ

∴ m∠P = m∠Q

∵ m∠P = 35°

∴ m∠Q = 35°

The sum of measures of the angles of a triangle is 180°

∴ m∠P + m∠Q + m∠K = 180°

∴ 35 + 35 + m∠K = 180

∴ 70 + m∠K = 180

- Subtract 70 from both sides

∴ m∠K = 110°

Let us use cosine rule to find the length of PQ

∵ PQ = $\sqrt{(KP)^{2}+(KQ)^{2}-2(KP)(KQ)cos(K)}$

∵ PK = 12 , KQ = 12 , m∠K = 110°

- Substitute these values in the rule

∴ PQ = $\sqrt{(12)^{2}+(12)^{2}-2(12)(12)cos(110)}$

∴ PQ = 19.66

The length of PQ is 19.66 units

Learn more:

You can learn more about triangle in brainly.com/question/12985572

#LearnwithBrainly

4 0

4 years ago

. A Gardener has 6203 plants. He wants to plant this in such a way that the number of rows and the number of columns remain the

Anastasy [175]

Answer:

Step-by-step explanation:

Since he wants to have equal number of rows and columns..the number of plants must be a root number. 6203 is not a root number. 6241 is the closest root number

(√6241= 79)

So he needs a minimum of 6241 plants in total for it.

6241-6203= 38

Therefore he needs 38 more plants

5 0

3 years ago

What angle is complementary to 2 ?

Zarrin [17]

Answer:

number 4 i gess

Step-by-step explanation:

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