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kompoz [17]
3 years ago
15

Please help I'll give brilliantist:)​

Mathematics
2 answers:
Scilla [17]3 years ago
8 0

Answer:

-7

Step-by-step explanation:

The full coordinate is (-7,3) the dot is on the line between -6 and -8

inysia [295]3 years ago
3 0

Answer:

-7

Step-by-step explanation:

x = 3

y = -7

the answer is just -7

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4. Use SUBSTITUTION to solve the system. x= y + 5 2y + x = -4​
Marianna [84]

Answer:

if I I just want free point so I am

6 0
3 years ago
2x – 2y = -4 and x + y = 8<br> please show work having a hard time in math
Katena32 [7]

Step-by-step explanation:

y= 5

x=3

.................

7 0
3 years ago
I neeeeed help thankyou
Helen [10]

Answer:

what one

Step-by-step explanation:

if it is the left one it is -7(2x)+-7(7)+10x=-4x

7 0
3 years ago
Which value for y makes the sentence true? 8 - y = 6 - 1 A. 4 B. 5 C. 1 D. 3
Oksi-84 [34.3K]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
Show that the equation x^4/2021 − 2021x^2 − x − 3 = 0 has at least two real roots.
andreev551 [17]

The roots of an equation are simply the x-intercepts of the equation.

See below for the proof that \mathbf{\frac{x^4}{2021} = 2021x^2 - x - 3 = 0} has at least two real roots

The equation is given as: \mathbf{\frac{x^4}{2021} = 2021x^2 - x - 3 = 0}

There are several ways to show that an equation has real roots, one of these ways is by using graphs.

See attachment for the graph of \mathbf{\frac{x^4}{2021} = 2021x^2 - x - 3 = 0}

Next, we count the x-intercepts of the graph (i.e. the points where the equation crosses the x-axis)

From the attached graph, we can see that \mathbf{\frac{x^4}{2021} = 2021x^2 - x - 3 = 0} crosses the x-axis at approximately <em>-2000 and 2000 </em>between the domain -2500 and 2500

This means that \mathbf{\frac{x^4}{2021} = 2021x^2 - x - 3 = 0} has at least two real roots

Read more about roots of an equation at:

brainly.com/question/12912962

6 0
3 years ago
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