All categories

3 years ago

Can someone tell me which one is the answer and why?

Mathematics

1 answer:

Ad libitum [116K]3 years ago

4 0

Answer:

i want to say that the answer is D but in reality you cant have a negative number in the square root and then take it out unless is tied to the exponent, but the most likey answer would be D since there are no other answer choices

You might be interested in

Please help it and show all the work please help

kompoz [17]

Answer:

$\sqrt[n]{x} => n \ is \ the \ index \ and \ x \ is \ the \ radicand\\\\1. b) -23^7\\\\2. a) 2\\\\3. b) \sqrt{3} \cdot\sqrt{2} =\sqrt{6}$

For q1 and q2 I have given explanation already.

q3 to multiply radicals the index must be same.

option a . different index. ∛5 √2

option b . same index so √3 √2 = √6

option c. again different index.

7 0

3 years ago

The ratio of the lengths of the two legs of a right triangle is 3:4

Snowcat [4.5K]

<em>Greetings from Brasil... </em>

Check Attachment!!!

According to the statement of the question, we have:

a/b = 3/4

<em>Note that according to the attached figure, </em><em>b > a</em><em>, then the correct proportion will be </em><em>a</em><em> to </em><em>3</em><em>, as well as </em><em>b</em><em> to </em><em>4</em><em>, because </em><em>b > a</em><em> and </em><em>4 > 3</em>

Isolating a and b:

a = 3b/4

b = 4a/3

From Pythagoras:

h² = a² + b² - as a = 3b/4 and b = 4a/3, so

For Area:

A = b.a/2

as b = 4h/5 and a = 6h/5, so

4 0

2 years ago

A suit case measures 24 inches long and the diagonal is 26 inches long. How much material is needed to cover one side of the sui

ASHA 777 [7]

It helps to draw diagrams when working through problems like this.

Given a rectangular prism (the suitcase), drawing a diagonal through its side will give you two right triangles. You can use the Pythagorean Theorem (a² + b² = c², where c is the hypotenuse of a right triangle) to find the length of the unknown side. The hypotenuse of the triangle is the diagonal since it is the longest side, and it is opposite the right angle.

a² + b² = c²

a² + 24² = 26²

a² + 576 = 676

a² = 100

a = 10 in

Remember that this is only the side length of the triangle. To find the amount of material needed to cover one side of the suitcase, we need its area. We can find the area using the formula for area of a rectangle: A = bh.

A = bh

A = 10*24

A = 240 in²

<h3>Answer:</h3>

240 in²

8 0

3 years ago

Magnani flips three coins what is the probability that the first second and third coin will all land the same way either our hea

Pavlova-9 [17]

Hhh
hht
hth
htt
ttt
tth
tht
thh
it will be 2/8

5 0

4 years ago

What is 9/10 - 11/12

kenny6666 [7]

9/10 - 11/12
Multiply both sides to find a common denominator in this case it’s 60
54/60 - 55/60
Then the answer would be -1/60

3 0

4 years ago

Can someone tell me which one is the answer and why?​

Can someone tell me which one is the answer and why?