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3 years ago

13

Determine if the given points form a right triangle (-4, 1) (1, 4) (4, -1)

1 answer:

puteri [66]3 years ago

5 0

these points do not make up a right triangle because you can visibly see that there is no 90° angle

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Question Help Find the original price of a pair of shoes if the sale price is $11 after a 75% discount.

fenix001 [56]

If it was a 75% discount, then u r actually paying 25%

so....25% of the original price is $ 11

0.25x = 11
x = 11 / 0.25
x = 44 <=== the original price

4 0

3 years ago

Luna ray has 5 orange picks and no green picks you add some green picks so 1 in every 3 picks is orange. How many picks are ther

Black_prince [1.1K]

2 is the answer

I hope this helps!

7 0

3 years ago

Can somebody please help me

a_sh-v [17]

Answer:

Step-by-step explanation:it’s number 4

8 0

3 years ago

Read 2 more answers

What is the multiplicative inverse or -3/4

Maslowich

Answer:

The answer is -4/3......

4 0

3 years ago

HELP PLEASE!!! 10 PTS!!

allsm [11]

Answer:

m∠DEC = 78°

Step-by-step explanation:

Given information: AC = AD, AB⊥BD, m∠DAC = 44° and CE bisects ∠ACD.

If two sides of a triangles are congruent then the opposite angles of congruent sides are congruent.

AC = AD (Given)

$\angle ADC\cong \angle ACD$

$m\angle ADC=m\angle ACD$

According to the angle sum property, the sum of interior angles of a triangle is 180°.

$m\angle ADC+m\angle ACD+m\angle DAC=180$

$m\angle ACD+m\angle ACD+44=180$

$2m\angle ACD=180-44$

$2m\angle ACD=136$

Divide both sides by 2.

$m\angle ACD=68$

CE bisects ∠ACD.

$m\angle ACE=m\angle DCE=\dfrac{\angle ACD}{2}$

$m\angle ACE=m\angle DCE=\dfrac{68}{2}$

$m\angle ACE=m\angle DCE=34$

Use angle sum property in triangle CDE,

$m\angle CDE+m\angle DCE+m\angle DEC=180$

$68+34+m\angle DEC=180$

$68+34+m\angle DEC=180$

$102+m\angle DEC=180$

Subtract 102 from both sides.

$m\angle DEC=180-102$

$m\angle DEC=78$

Therefore, the measure of angle DEC is 78°.

6 0

3 years ago