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2 years ago

Find the perimeter of this scalene triangle. 51/8 2/1/2

Mathematics

2 answers:

Marysya12 [62]2 years ago

7 0

For perimeter you just add the sides up.
2.25 + 7.5 + 9.75 = 19.5
**19.5 ft**

maxonik [38]2 years ago

3 0

Answer: 19 1/2

Step-by-step explanation:

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3x=40.20.... Each book costed $13.40

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Let a, b, c, and d be real numbers with a, c 6= 0. Prove that the lines y = ax+b and y = cx + d have the same x-intercept if and

Monica [59]

Step-by-step explanation:

We have got the lines :

$y=ax+b\\y=cx+d$

Both lines intercept the x-axis in the point :

$I = (i_{1} ,i_{2})$

In all point from x-axis the y-component is equal to 0.

$I=(i_{1},o)$

We replace the I point in the lines equations:

$0=a(i_{1})+b \\0=c(i_{1})+d$

From the first equation :

$0=a(i_{1})+b \\-b=a(i_{1})\\i_{1}=\frac{-b}{a}$

From the second equation :

$0=c(i_{1})+d\\ -d=c(i_{1})\\i_{1}=\frac{-d}{c}$

Then $i_{1}=i_{1}$

Finally :

$\frac{-b}{a}=\frac{-d}{c} \\\frac{b}{a}=\frac{d}{c} \\ad=bc$

y = ax + b and y = cx + d have the same x-intercept ⇔ad=bc

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2 years ago

Why are 7 and 2 like terms? help please!!

bazaltina [42]

Like terms are terms whose variables are the same. In this case, 7 and 2 have no coefficients therefore are like terms. For example, 7x and 2x would both be like terms because they have the same coefficient which is x.

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STALIN [3.7K]

Answer:

Step-by-step explanation:

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lisabon 2012 [21]

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Step-by-step explanation:

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