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3 years ago

Huuuuuurrrrrrrry please huurrrrrrr math

Mathematics

1 answer:

nadezda [96]3 years ago

3 0

So basically, so start off, let's explain the term "absolute value".
When you want to find the absolute value of something, such as the number 3 in this question, you just look at the number you have.
In this case, you have the number 3, and you want to find two numbers that have an absolute value of 3.
Absolute value is basically always a positive number that's the same number as you had.
You're looking for 3, and there are two numbers with an absolute value of 3.
The numbers are both -3 and 3 since the absolute value guarantees us that the number (or negative number) is always a positive.
Another example: You want to find the absolute value of 113.
The two numbers that have an absolute value of 113 is -113 and 113. Absolute value guarantees the number is always positive, thus you have your two numbers.

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1/5+2/4=what help me please

Vikentia [17]

7/10 is your correct answer

6 0

3 years ago

Read 2 more answers

Solve for u. 10 + 6u = 7u u =

slega [8]

Answer:

u = 10

Step-by-step explanation:

10 + 6u = 7u

10 = u

Just subtract 6u on both sides.

8 0

3 years ago

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The base of a regular pyramid is a hexagon.

forsale [732]

The triangle in the drawing is semi equilateral. Therefore a=√(14^2-7^2)=12.12 cm
The base of a regular pyramid consists of 6 equilateral triangles. The area of each triangle is: (14*12.12)/2 = 84.87 cm^2
The base: 6*84.87=509.22 cm^2

5 0

3 years ago

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Can someone explain this to me? I'm not entirely sure this question has enough information to be solved. Thanks!

dedylja [7]

Question 1

$DC=AC-AD=20-16=4$

Question 2

By the geometric mean theorem,

$BD^2 = (4)(16)=64 \\ \\ BD=8$

Question 3

By the Pythagorean theorem,

$AB^2 = 8^2 + 16^2 \\ \\ AB^2 = 320 \\ \\ AB=8\sqrt{5}$

Question 4

By the Pythagorean theorem,

$BC^2 = 8^2 +4^2 \\ \\ BC^2 = 80 \\ \\ BC=4\sqrt{5}$

8 0

1 year ago

Rewrite with the LCD

anygoal [31]

1/4 + 3/8

Rewrite with the LCD (lowest common denominator)

Remember : the denominator is just the bottom number on a fraction.

Let's look at both of our given fractions denominator's.

4 & 8 → What do both of these numbers have in common? They both go into 8!

How many times does 4 go into 8? → Twice

How many times does 8 go into 8? → Once

So, because of that, we must multiply the top number (numerator) of each fraction with either one, or two.

First fraction : 1/4 × 2/2 =2/8 → So, our first fraction changes.

Second fraction : 3/8 × 1/1 = 3/8 → However, our second fraction changes.

So, our new question looks like this : 2/8 + 3/8

If you wanted us to answer this question, we simply need to add the top numbers (numerators) with one another because both fractions have the same bottom numbers (denominators).

2 + 3 = 5

So, our answer is 5/8 and our question rewritten with the LCD is : 2/8 + 3/8

~Hope I helped!~

6 0

3 years ago