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3 years ago

Enter an equation in point-slope form for the line.

Mathematics

1 answer:

Klio2033 [76]3 years ago

5 0

Answer:

y + 1 = 8 (x + 7)

Step-by-step explanation:

point slope form is

y - y1 = m (x - x1)

So replace the y1 with the y point, and the x1 with the x point

y - (-1) = m (x - (-7) )

then replace the m with the slope

y - (-1) = 8 (x - (-7) )

now solve

y + 1 = 8 (x + 7)

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Given: , ∠DAC ≅ ∠BCA Prove: ∆ADC ≅ ∆CBA Look at the proof. Name the postulate you would use to prove the two triangles are congr

Zolol [24]

Answer:

SAS Postulate

Step-by-step explanation:

The contributors to the proof are listed in the left column. They consist of a congruent Side, a congruent Angle, and a congruent Side. The SAS Postulate is an appropriate choice.

6 0

3 years ago

What is h(-4) for h(x) =(x-2)^2 +3x

PSYCHO15rus [73]

$(- 4 - 2)^{2} + 3( - 4) \\ = ( - 6)^{2} + ( - 12) \\ = 36 - 12 \\ = 24$
The answer is 24

7 0

3 years ago

Please help me :( pls help

Serggg [28]

Answer:

See below for an explanation

Step-by-step explanation:

I'm unsure of your answer choices, so I'll show you how to solve for the remainder of the whole triangle:

Since we are given a hypotenuse of 5 and a side length of 4 which is adjacent to ∅, the trig function to solve for ∅ would be cosine because cos∅=adjacent/hypotenuse (SOHCAHTOA). This means cos∅=4/5 and taking the arccos (the inverse of cosine aka. cos^-1) of both sides gets us ∅=36.87°

Side AC can be solved by using the Pythagorean Theorem since a²+b²=c² can be turned into 4²+b²=5². We would then have 16+b²=25 which is also b²=9, thus taking the square root of both sides gives us b=3 (since distance is positive). Thus, side AC has a length of 3 units.

∠A can be found by using the Triangle Angle-Sum Theorem. Since all the interior angles of a triangle must add up to 180°, then ∠A+∠B+∠C=180°. We know that since ∠B=36.87° and ∠C=90°, then we have the equation ∠A+36.87°+90°=180°. Combining like terms on the left side gets us ∠A+126.87°=180° and subtracting on both sides get us ∠A=53.13°

<u>Final sides and angles of the triangle:</u>

∠A=53.13°

∠B=36.87°

∠C=90°

BC=4

BA=5

AC=3

3 0

3 years ago

Please help me on 16 17 18

NeX [460]

Answer:

16. Always . taking 4 away from 8 can only give 4. nothing else

17.Always. 4+8, 3+8 any etc. this isn't a solution and therefore no fixed number is present

18. False. 12-8=4 there is no other possible answers avaliable to this

Step-by-step explanation:

written down already . please put as brainliest

8 0

2 years ago

Read 2 more answers

Original price: $63.00 new price: $56.07 arrowright original price: $37.50 new price: $34.50 arrowright original price: $12.25 n

melisa1 [442]

Part a: There is an 11% decrease in the price

Part b: There is an 8% decrease in the price

Part c: There is an 8% increase in the price

Part d: There is an 11% increase in the price

Part a:

Original price = $63

New price = $56.07

Change in price = 56.07-63 = - 6.93

Percentage change in price = Change in price/Original price*100

= -6.93/63*100

= - 0.11*100 = 11% decrease in price

Part b:

Original price = $37.50

New price = $34.50

Change in price = 34.5-37.5 = - 3

Percentage change in price = Change in price/Original price*100

= -3/37.5*100

= - 0.08*100 = 8% decrease in price

Part c:

Original price = $12.25

New price = $13.23

Change in price = 13.23-12.25 = 0.98

Percentage change in price = Change in price/Original price*100

= 0.98/12.25*100

= 0.08*100 = 8% increase in price

Part d:

Original price = $98

New price = $108.78

Change in price = 108.78-98 = 10.78

Percentage change in price = Change in price/Original price*100

= 10.78/98*100

= 0.11*100 = 11% increase in price

Learn more about percentage change:

brainly.com/question/14700520

#SPJ4

5 0

1 year ago