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3 years ago

CAN SOMEONE PLEASE HELP ME???? ASAPPPPP!!!!! PLEASE??

Mathematics

1 answer:

steposvetlana [31]3 years ago

5 0

Answer:

(i) an isosceles triangle is a triangle where two angles are equal and one is different

(ii) same as above

(iii) sorry but im not sure

(iv) a=1.41 b=11.31 c=7.07

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Which set of numbers represents a Pythagorean triple

Anuta_ua [19.1K]

Answer:

27,36,45

Step-by-step explanation:

Pythagorean theorem

$a^{2} +b^{2} =c^{2}$

$6^{2}+ 9^{2}\\ =117\\\neq 12^{2}$

$7^{2}+ 10^{2}\\ =149\\\neq 12^{2}$

$16^{2}+ 18^{2}\\ =580\\\neq 25^{2}$

$27^{2}+ 36^{2}\\ =2025\\= 45^{2}$

3 0

3 years ago

Which shows all the values of x that make the rational expression undefined? x = 6 x = 7 x = –6 or x = 6 x = –7 or x = 7

n200080 [17]

<h2>Explanation:</h2>

The rational expression is given by:

$E=\frac{2x^2-72}{5x^2-245} \\ \\ Factor \ out: \\ \\ E=\frac{2(x^2-36)}{5(x^2-49)} \\ \\ E=\frac{2(x-6)(x+36)}{5(x-7)(x+7)} : \ \ \ \ a^2-b^2=(a-b)(a+b)$

The denominator can't be zero, therefore:

$(x-7)(x+7)\neq 0 \\ \\ \\ Thus: \\ \\ \boxed{x\neq 7 \ and x \neq -7}$

Finally,<em> the values of x that make the rational expression undefined are </em>

4 0

3 years ago

I need help! <br> f(x)=-3x+6/4x-8

tia_tia [17]

Answer:

same

Step-by-step explanation:

8 0

2 years ago

Question 3 (2 marks)

Sav [38]

Answer:

$3385 per week

Step-by-step explanation:

so, he gets $370 plus 4.5% of what he is selling.

$67000 = 100% of selling

1% = 100%/100 = 67000/100 = $670

4.5% = 1% × 4.5 = 670 × 4.5 = $3015

so, he gets $370 + $3015 = $3385 per week

7 0

2 years ago

One number is 4 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 538,

larisa [96]

Answer:

292

173

Step-by-step explanation:

x = first number

4x = second number

100 + x = third number

x + 4x + 100 + x = 538

6x + 100 = 538

6x + 100 - 100 = 538 - 100

6x = 438

6x/6 = 438/6

x = 73

Check:

73 + 4(73) + 100 + 73 = 538

73 + 292 + 173 = 538

538 = 538

5 0

3 years ago

Read 2 more answers

CAN SOMEONE PLEASE HELP ME???? ASAPPPPP!!!!! PLEASE??​

CAN SOMEONE PLEASE HELP ME???? ASAPPPPP!!!!! PLEASE??