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3 years ago

Solve x^2 - 2x - 4 = 0

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

3 0

Answer:

In the attached file

Step-by-step explanation:

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X - y = 2 x + y = -3 Solve this using elimination Quickly please!!!!

blagie [28]

The answer for x=-1
The answer for y=-5/2

I believe these are correct

7 0

3 years ago

Assume the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons.

Rama09 [41]

The rate of change is 16.8 million tons per year

Solution:

Given that, the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons

The average rate of change is given by formula:

$\text{ Average rate of change } = \frac{\text{ change in value }}{\text{ number of years }}$

Value in 1950 = 12 million tons

Value in 1955 = 96 million tons

Change in value = value in 1955 - value in 1950

Change in value = 96 million - 12 million = 84 million tons

Number of years = 1950 to 1955 = 5 years

Substitute the given values in formula,

$\text{ Average rate of change } = \frac{84 \text{ million tons}}{5} = 16.8 \text{ million tons}$

Thus rate of change is 16.8 million tons per year

5 0

3 years ago

The product of x and y, written in three different ways

Alika [10]

Answer:
3
⋅
x
x
+
y
Explanation:
The product of 3 and x divided by the sum of x and y is
P
r
o
d
u
c
t
o
f
3
and
x
S
u
m
o
f
x
and
y
.
Okay break it into smaller parts. The product of
3
and
x
is
3
⋅
x
um of
x
and
y
is
x
+
y
Now, we get
3
⋅
x
x
+
y
and that's it

4 0

3 years ago

Can someone help me?

Vesnalui [34]

Step-by-step explanation:

1. 1/13 2. 1/26

4 0

3 years ago

What is 5 + -4 * (12/-6)

Archy [21]

Answer:

Step-by-step explanation:

Parentheses first:

5+ (-4) * (-2)

Then Multiply:

5+8

Then Add:

4 0

3 years ago