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3 years ago

Can someone help me on this?

Mathematics

1 answer:

scoray [572]3 years ago

3 0

I think it’s 19 but for sure not 7

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What are the domain and range of the function f(x) = 3^x + 5?

Hunter-Best [27]

Answer:

b. domain: (negative infinity, infinity); range: (5, infinity)

Step-by-step explanation:

8 0

3 years ago

Answer this please<br> Question in the image below

nika2105 [10]

2.356194 I think that’s what the answer is

3 0

3 years ago

Ab with endpoints A(4,-6) and B(-4,2)

gayaneshka [121]

Answer: $d_{AB}=11.31\ units$

Step-by-step explanation:

The formula for calculate the distance between two points is:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

In this case, given the points A(4,-6) and B(-4,2), we can identify that, we just need to substitute values into the formula in order to calculate the distance between the given points.

Thierefore, this is (Rounded to the nearest hundred):

$d_{AB}=\sqrt{(4-(-4))^2+(-6-2)^2}\\\\d_{AB}=11.31\ units$

4 0

4 years ago

How can you solve this system of equations using substitution? <br> -66x-2z=-196<br> 8x+2z=22

Scrat [10]

In the second equation:

Subtract 8x from both sides.

2z = 22 - 8x

Divide 2 on both sides.

z = 11 - 4x

Plug this into the first equation.

-66 - 2(11 - 4x) = -196

-66 - 22 + 8x = -196

Combine like terms.

-88 + 8x = -196

Add 88 to both sides.

8x = -108

Divide 8 on both sides.

x = -13.5

Put this into the second equation.

8(-13.5) + 2z = 22

-108 + 2z = 22

Add 108 to both sides.

2z = 130

Divide 2 on both sides.

z = 65

and

x = -13.5

Hope this helps!

6 0

3 years ago

if a quadratic equation with real coefficients has a discriminant of -36 then what type of roots does it have

Aleks04 [339]

Step-by-step explanation:

We have,

If a quadratic equation with real coefficients has a discriminant of -36.

The general form of quadratic equation is :

$ax^2+bx+c=0$

The discriminant of this equation is : $D=b^2-4ac$

If D=0, it will have 1 real roots

If D>0, it will have 2 real roots

If D<0, it will have no real roots

We have,

D = -36 < 0, so, the quadratic equation will have no real roots.

5 0

3 years ago