What is the first 8 multiples of 4?

alexandr1967 [171]

Answer:

4 is a BCA def of rectangle

6 0

2 years ago

gale's grade in science for the term is determined by the average of five test grades. his first four grades are 80, 95, 78, and

lara [203]

Answer:

He needs at least 77 on the 5th test.

Step-by-step explanation:

If five numbers are to average 84, then their sum must be (5 x 84) = 420 .

Gale needs his five grades to add up to 420.

So far, he has (80 + 95 + 78 + 90) = 343 .

He needs at least (420 - 343) = <em>77 more</em> points on the 5th test.

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=3%28m%20%2B%2010%29%20-%202%28m%20-%20n%29%20%20%5C%3A%20what%20%5C%3A%20is%20%5C%3A%20the%20%

Umnica [9.8K]

Answer:

5m+30+2n

Step-by-step explanation:

3m+30 and - 2m+2n

5m+30+2n

8 0

3 years ago

What are the roots of this equation? x2-4x+9=0

zysi [14]

Considering the definition of zeros of a function, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

<h3>Zeros of a function</h3>

The points where a polynomial function crosses the axis of the independent term (x) represent the so-called zeros of the function.

In summary, the roots or zeros of the quadratic function are those values of x for which the expression is equal to 0. Graphically, the roots correspond to the abscissa of the points where the parabola intersects the x-axis.

In a quadratic function that has the form:

f(x)= ax² + bx + c

the zeros or roots are calculated by:

$x1,x2=\frac{-b+-\sqrt{b^{2}-4ac } }{2a}$

The quadratic function is f(x) = x² + 4x +9

Being:

a= 1
b= 4
c= 9

the zeros or roots are calculated as:

$x1=\frac{-4+\sqrt{4^{2}-4x1x9 } }{2x1}$

$x1=\frac{-4+\sqrt{16-36 } }{2x1}$

$x1=\frac{-4+\sqrt{-20 } }{2x1}$

and

$x2=\frac{-4-\sqrt{4^{2}-4x1x9 } }{2x1}$

$x2=\frac{-4-\sqrt{16-36 } }{2x1}$

$x2=\frac{-4-\sqrt{-20} }{2x1}$

If the content of the root is negative, the root will have no solution within the set of real numbers. Then $\sqrt{-20}$ has no solution.

Finally, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

Learn more about the zeros of a quadratic function:

brainly.com/question/842305

brainly.com/question/14477557

#SPJ1

6 0

1 year ago

Graph the linear equation and answer each of the following questions. y>2/3 x-2 What is the y-intercept? What is the slope (i

lozanna [386]

Answer:

(i)

y-intercept is -2

(ii)

slope is $\frac{2}{3}$

(iii)

slope is positive

(iv)

another point is (3,0)

Step-by-step explanation:

We are given equation as

$y=\frac{2}{3} x-2$

now, we can compare it with slope intercept form of line

y=mx+b

where

m is slope

b is y-intercept

we get

$m=\frac{2}{3}$

$b=-2$

So,

(i)

y-intercept is -2

(ii)

slope is $\frac{2}{3}$

(iii)

we can see that

$m=\frac{2}{3}$

is a fraction and positive

so, slope is positive

(iv)

we can select any random value of x and find y

that will give us second point

Let's assume

x=3

$y=\frac{2}{3}\times 3-2$

$y=2-2$

$y=0$

So, another point is (3,0)

(v)

Graph:

4 0

3 years ago