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3 years ago

(d) Given: AB = 4; in and AC = 3 Find: The length of BC or BC What the answer??

Mathematics

1 answer:

mars1129 [50]3 years ago

8 0

Your total answer is 7.

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(I’M MARKING BRAINLIEST) <br><br> Plzzz help I really need all the help I can get!

Nutka1998 [239]

Answer:

the one on the left

Step-by-step explanation:

5 0

3 years ago

Explain the process for factoring each of the following: a. x^2-25 b. 3x^2-12x-15 c. x^3+2x^2+3x+6

Ilya [14]

Answer:

a. (x+5)(x-5)

b. 3(x+1)(x-5)

c. (x^2+3)(x+2)

Step-by-step explanation:

a. x^2-25

The given expression can be factorized using the formula:

$a^{2} -b^{2} =(a+b)(a-b)\\So,\\x^{2} -25\\=(x)^{2}-(5)^{2}\\=(x+5)(x-5)$

b. 3x^2-12x-15

We can see that 3 is common in all terms

=3(x^2-4x-5)

In order to make factors, the constant will be multiplied by the co-efficient of highest degree variable

So,

$3[x^{2} -4x-5]\\=3[x^{2}-5x+x-5]\\=3[x(x-5)+1(x-5)]\\=3(x+1)(x-5)$

c. x^3+2x^2+3x+6

Combining the first and second pair of terms

$x^{3}+2x^{2}+3x+6 \\=[x^{3}+2x^{2}]+[3x+6]\\Taking\ x^{2}\ common\ from\ first\ two\ terms\\=x^{2} (x+2)+3(x+2)\\=(x^{2}+3)(x+2)$

3 0

4 years ago

Factor this expression please

Orlov [11]

16x + 40y.....GCF is 8

8(2x + 5y) <==

5 0

4 years ago

Whats the value of number 3 in 6,035

Sergio039 [100]

<span>When writing a number, the values that given to the numbers are as follows, starting from the right: ones, tens, hundreds, thousands, ten thousands, etc. The three is located on the second position from the right, meaning it is in the tens place. The significance of this is that it has 3 tens, which means its value is 30.I hope that my answer is helpful! Let me know if you need something more :)</span>

6 0

3 years ago

Lucas needs a wooden strip that is 2/3 yard long for his boat model. He plans to cut the strip into pieces that are each 1/5 yar

worty [1.4K]

2/3=10/15

1/5=3/15

3/15+3/15+3+15=9/15

Answer: He can cut 3 pieces

Hope this helps!

3 0

3 years ago