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3 years ago

In the adjoining figure, AB//CD. Show that, AC//BD.

Mathematics

1 answer:

anastassius [24]3 years ago

6 0

Answer:

discupa eu não sei

um belo dia abençoado

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2 years ago

(5a +7b)b/(b+2b)=? <br> 4a ,4ab , 2a+4b , 5a+7b/3 , 5a+5b

musickatia [10]

The correct answer is: [D]: " $\frac{5a + 7b}{3}$ " .
__________________________________________________
Explanation:
__________________________________________________
$\frac{b(5a + 7b)}{b +2b}$ ;

Simplify the "denominator" ; → (b + 2b = 1b + 2b = 3b) ;

and rewrite:

$\frac{b(5a + 7b)}{3b}$ ;

Cancel out the "b" in the "numerator" to a "1" ;
and cancel the "3b" in the "denominator to a "3" ;

{since: "b ÷ b = 1 "; and since: "3b ÷ b = 3" } ;

and rewrite as:
____________________________________________________
$\frac{5a + 7b}{3}$ ;
____________________________________________________

→ which is: Answer choice: [D]: " $\frac{5a + 7b}{3}$ " .
____________________________________________________

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3 years ago

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If James can swim 10 laps in 23 minutes, what would be his expected time for 15 laps?

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Step-by-step explanation:

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2 years ago

Pls help me i will mark as brilliant<br>pls write the step

djyliett [7]

1a) Firstly, lets start by expanding the brackets. x × x is x². So x(x+1) = x² + x. Then we do the second part. 2 × x = 2x and 2 × 1 = 2. Now we have

x² + 3x + 2.

Now what we do is simplify through quadratic formula. We look at the last digit which is 2. What two numbers multiplies to give you 2? 2 and 1. 2 x 1 = 2 and 2 + 1 = 3. Our second number is 3 so this is the right amount. so now we just put the two factors together. (x + 1)(x+2). This is the answer.

b) I have explained above and so am just gonna write the answers. After expanding we get x² + 2x + 1. We get simplify to

= (x + 1)(x+1)

c) y² + 3y + 4. This cannot be simplified into the format so we leave it like this.

d) = 0.

Have a go at the last ones by yourself, if you still need help, I am available!

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2 years ago

In the adjoining figure, AB//CD. Show that, AC//BD.​

In the adjoining figure, AB//CD. Show that, AC//BD.