All categories

3 years ago

Subtract 5.7 - (-3.15)

Mathematics

2 answers:

Ludmilka [50]3 years ago

5 0

It is 8.85 because when 2 negatives are together it becomes positive

yan [13]3 years ago

4 0

The answer is 8.85

.......

You might be interested in

What is the constant rate of change in given equation Y= -5x *please Hurry*

statuscvo [17]

Answer:

-5

Step-by-step explanation:

The x and the y are the factors of the equation. Simply extract the value that is not the variable, and, well, you’ll get your constant.

6 0

3 years ago

(04.04)

harkovskaia [24]

I Think The answer is 35 units I hope it helps Message Me if I’m wrong and I’ll change My answer and fix it for you

6 0

4 years ago

Read 2 more answers

What is the radius of the circle described by<br> the equation (x-6)* +(y - 4)- 64 = 0?

daser333 [38]

Answer:

d) 8

Step-by-step explanation:

7 0

3 years ago

What are the zeros of the quadratic function?<br> y = x^2 - 2x - 15

Pie

Answer:

$x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}$

Step-by-step explanation:

$-> 0=2x^2-2x-15$

-zeros means the solution aka x intercept, meaning y=0

$x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:2\left(-15\right)}}{2\cdot \:2}$

=> according to quadratic formula

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

where $ax^2+bx+c=0$

=> $x_{1,\:2}=\frac{-\left(-2\right)\pm \:2\sqrt{31}}{2\cdot \:2}$

simplify

$x_1=\frac{-\left(-2\right)+2\sqrt{31}}{2\cdot \:2},\:x_2=\frac{-\left(-2\right)-2\sqrt{31}}{2\cdot \:2}$

$x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}$

Cannot simplify farther

3 0

3 years ago

Select the correct difference. -3z^7 - (-5z^7)

ivanzaharov [21]

2z^7

-3--5=2. z^7

Since both have the same exponent

5 0

3 years ago