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3 years ago

What is the value of x? 2x+ 3= 7

Mathematics

2 answers:

scZoUnD [109]3 years ago

7 0

Answer:

x=2

Step-by-step explanation:

2x2=4 and 4=3=7

siniylev [52]3 years ago

4 0

Answer: 2. I used the plug-in method because this is an easy question.

Step-by-step explanation:

1st Step: 2*(2)+3=7

2nd Step: 4+3=7

3rd Step: 7=7=True

Hope this helps!

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Pepsi [2]

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4 years ago

Write the equation of a circle with a center at (-2, 3) and a radius of 4.

Ivan

Answer:

The equation of a circle:

$(x+2)^2+(y-3)^2 = 16$

Step-by-step explanation:

The equation of a circle:

$(x-h)^2+(y-k)^2 = r^2$

(where the center is known as $(h,k)$ and the radius, known as $r$ ).

-Since you already have the center and the radius, use them for the equation of a circle:

Center: $(-2,3)$

Radius: $4$

$(x+2)^2+(y-3)^2 = 4^2$

After you have the equation of a circle, simplify the radius by the exponent $2$ :

$(x+2)^2+(y-3)^2 = 16$

So, you have found the equation of a circle.

5 0

3 years ago

I wil Mark BRANLIEST!! HELP!!!! Consider the graphs of linear function f(x) = 3x, quadratic function g(x) = 3x2, and exponential

Mashcka [7]

Answer:

Option C.

Step-by-step explanation:

We know that, for a value a > 1.

if b > c, then:

a^b > a^c

Now, this means that if we have two functions:

f(x) = x^n

g(x) = x^m

and m > n

then for large values of x, g(x) will be larger than f(x), because g(x) has a larger exponent.

now, is also true that:

f(x) = x^n

g(x) = n^x

for n > 1

For large values of x, g(x) will be larger than f(x), again, because for larger values of x g(x) will have a really large exponent, thus it grows really fast.

Then we can conclude that for the functions:

f(x) = 3*x

g(x) = 3*x^2

h(x) = 2^x

For a given value of x, h(x) will exceed the other two functions.

This can be seen in the graph below, where:

h(x) is purple, g(x) is blue, and f(x) is green.

We can see that eventually, h(x) exceeds the other two.

The correct option is C.

3 0

3 years ago