All categories

2 years ago

Please help ill give brainliest

Mathematics

2 answers:

Katen [24]2 years ago

8 0

Answer:

-13

Step-by-step explanation:

My bad, I did my math wrong. Its -3.

Mama L [17]2 years ago

3 0

Answer:

-(-5) - 8=

5-8= -3

Step-by-step explanation:

replace the variables with the numbers and solve it like a normal equation

You might be interested in

There are 84 boys in a freshman class of 146 students. Find the ratio of boys to girls.

fredd [130]

There are 146 - 84 = 62 girls

ratio is 84:62

simplifies to 42:31

5 0

2 years ago

tiffany and justin have baseball card collections. justin has 36 more cards than tiffany if they have a total of 92 cards, how m

saw5 [17]

Answer:Tiffany has 28 Justin has 64

Step-by-step explanation:

64+28=92

7 0

2 years ago

X^2 + 18x + c = 25 +c

svet-max [94.6K]

Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)

7 0

2 years ago

Consider functions f and g.1 + 12f(1) = 12 + 4. – 12for * # 2 and 7 -64.2 – 16. + 1641 +48for a # -12 Which expression is equal

lisabon 2012 [21]

Given the following functions below,

$\begin{gathered} f(x)=\frac{x+12}{x^2+4x-12}\text{ and} \\ g(x)=\frac{4x^2-16x+16}{4x+48} \end{gathered}$

Factorising the denominators of both functions,

Factorising the denominator of f(x),

$\begin{gathered} f(x)=\frac{x+12}{x^2+4x-12}=\frac{x+12}{x^2+6x-2x-12}=\frac{x+12}{x(x+6)-2(x+6)}=\frac{x+12}{(x-2)(x+6)} \\ f(x)=\frac{x+12}{(x-2)(x+6)} \end{gathered}$

Factorising the denominator of g(x),

$\begin{gathered} g(x)=\frac{4x^2-16x+16}{4x+48}=\frac{4(x^2-4x+4)}{4(x+12)} \\ \text{Cancel out 4 from both numerator and denominator} \\ g(x)=\frac{x^2-4x+4}{x+12}=\frac{x^2-2x-2x+4}{x+12}=\frac{x(x-2)-2(x-2)}{x+12}=\frac{(x-2)^2}{x+12} \\ g(x)=\frac{(x-2)^2}{x+12} \end{gathered}$

Multiplying both functions,

$undefined$

4 0

5 months ago

What is 10÷5/8 in a math order.

Sedbober [7]

If you would like to calculate <span>10÷5/8, you can do this using the following steps:

</span><span>10÷5/8 = (10/5)/8 = 2/8 = 1/4 = 0.25

The correct result would be 1/4 or 0.25.</span>

3 0

2 years ago