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3 years ago

WILL GIVE BRAINLIEST!! {y+3/2x>−3 y−5≤−6x

Mathematics

1 answer:

Andreas93 [3]3 years ago

6 0

The answer to the question is c

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How many solutions does the equation below have?

miskamm [114]

Answer:

1. none

Step-by-step explanation:

When you simplify the expression, you see that the statement is is false for any value of x.

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3 years ago

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Which graph shows the best solution for the system of linear equations. x+5y_>5 y_<2x+4

Mkey [24]

Answer:

Step-by-step explanation:

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3 years ago

Which expression gives the x-coordinate of the solution of the system?

aalyn [17]

To find the the expression that gives the value of $x$ we are going to proceed as follows:
$5x+3y=-18$ equation (1)
$2x-4y=-28$ equation (1)

Step 1. solve for $y$ in equation (2)
$2x-4y=-28$
$-4y=-28-2x$
$y= \frac{-28-2x}{-4}$
$y=7+ \frac{1}{2} x$ equation (3)

Step 3. Replace equation (3) in equation (1) and solve for $x$
$5x+3y=-18$
$5x+3(7+ \frac{1}{2} x)=-18$
$5x+21+ \frac{3}{2} x=-18$
$\frac{13}{2} x=-39$
$x= \frac{-39(2)}{(13)}$
$x=-6$

We can conclude that the expression that gives the value of $x$ is: $x=-6$

7 0

3 years ago

Find the range of the quadratic function. (y=2x^2-20x+53)

Anit [1.1K]

Answer: The range is y ≥ 3.

Step-by-step explanation:

When we have an equation:

y = f(x)

The range is the set of the possible values of y.

In this case, we have:

y = f(x) = 2*x^2 - 20*x + 53

This is a quadratic equation, and the leading coefficient is positive. This means that the arms of the graph will open upwards.

Then the minimum value of y will be the vale at the vertex.

We know that for a quadratic equation of the form:

a*x^2 + b*x + c

The vertex is at:

x = -b/2a

Then in this case, the vertex will be at:

x = -(-20)/(2*2) = 20/4 = 5

Then the smallest value of this function will be:

f(5) = 2*5^2 - 20*5 + 53 = 3

This is the smallest value that y can take, and y can take any value greater than 3.

Then the range can be written as:

y ≥ 3.

4 0

3 years ago

Which of the following could be used as an example of a mass of one kilogram?

PIT_PIT [208]

Answer:

i would think C

Step-by-step explanation:

3 0

3 years ago

﻿WILL GIVE BRAINLIEST!! {y+3/2x>−3 y−5≤−6x

WILL GIVE BRAINLIEST!! {y+3/2x>−3 y−5≤−6x