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3 years ago

Please answer URGENT

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

The answer would be 90 because all you do is add the numbers ! (: pls mark me brainliest

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Find two numbers such that the sum of their squares is 100. The square of the larger number is equal to the sum of the product o

Shtirlitz [24]

Answer with Step-by-step explanation:

Let x and y are two numbers

According to question

$x^2+y^2=100$ ....(1)

Suppose x is larger than y

$x^2=x(4y+8x)$

$x=4y+8x$

$x-8x=4y$

$-7x=4y$

$y=-\frac{7}{4}x$

Substitute the value of y

$x^2+(-\frac{7}{4}x)^2=100$

$x^2+\frac{49}{16}x^2=100$

$\frac{16x^2+49x^2}{16}=100$

$\frac{65}{16}x^2=100$

$x^2=\frac{16\times 100}{65}$

$x=\sqrt{\frac{1600}{65}}=\frac{40}{\sqrt{65}}=\frac{40}{65}\sqrt{65}=\frac{8}{13}\sqrt{65}$

$y=-\frac{7}{4}\times \frac{8}{13}\sqrt{65}=-\frac{14}{13}\sqrt{65}$

3 0

3 years ago

If (a+b) = 4 and ab = 3, find the value of a³+b³.

Stolb23 [73]

Answer:

Step-by-step explanation:

a³+b³= (a+b)³ - 3ab(a+b)

= 4³ -3×3×4 = 64-36 = 28

8 0

3 years ago

Evaluate -6+(-12) =(-6).

padilas [110]

Cancelling out both the -6 we get 12=0 which is not true, hence the equation is incorrect.

7 0

3 years ago

Classify each sequence as arithmetic, geometric, or neither by dragging it into the correct box.

garik1379 [7]

The sequences are classified, respectively, as:

Geometric, Arithmetic, Neither.

<h3>What is a geometric sequence?</h3>

A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.

In the first sequence, we have that:

$q = \frac{45}{15} = \frac{15}{5} = \frac{5}{\frac{5}{3}} = \frac{\frac{5}{3}}{\frac{5}{9}} = 3$

Hence it is a geometric sequence.

<h3>What is an arithmetic sequence?</h3>

In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.

In the second sequence, we have that:

d = -4 - 1 = 1 - 6 = 6 - 11 = 11 - 16 = -5

Hence it is an arithmetic sequence.

<h3>What about the third sequence?</h3>

$\frac{4}{3} \neq \frac{3}{2}, 1 - \frac{1}{2} \neq 2 - 1$

Hence it is neither arithmetic nor geometric.

More can be learned about geometric and arithmetic sequences at brainly.com/question/11847927

#SPJ1

8 0

2 years ago

An orthocenter of a triangle is

Kamila [148]

Answer:

the intersection of the triangle's three altitudes.

Step-by-step explanation:

hope this helped </3

5 0

3 years ago