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3 years ago

Help meeeeeeeeeeeeeeeeeeeeeee !!!!!

Mathematics

1 answer:

stiv31 [10]3 years ago

6 0

Answer:

i think it is the 2nd one and the 5th one.

Step-by-step explanation:

hope this helped!

p.s it would be cool if you gave me brainliest

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X^4 − 3x^2 − 90 x= -3

Ahat [919]

Answer:

-36

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

x⁴ - 3x² - 90

x = -3

Step 2: Evaluate

Substitute in x: (-3)⁴ - 3(-3)² - 90
Exponents: 81 - 3(9) - 90
Multiply: 81 - 27 - 90
Subtract: 54 - 90
Subtract: -36

8 0

3 years ago

Which type of line of symmetry does the figure have? vertical horizontal diagonal none

Natali [406]

your answer would be that the sematry would be vertical semmetry

3 0

3 years ago

Emmanuel added two integers Which condition will always give Emmanuel a negative solution when he adds two integers? Both intege

alexgriva [62]

Both integers have negative values

Explanation

Let

x and y represents the number

so, the options are

$\begin{gathered} +\text{ + +} \\ +\text{ + -} \\ -\text{ + +} \\ -\text{ +-} \end{gathered}$

a) Both integers have negative values Both integers

$-x-y=-(x+y)\rightarrow you\text{ will always get a negative number}$

b) Both integers have positive values

$x+y=+\text{ + += you will always get a positive number}$

c)One integer has a positive value, and one integer has a negative value

$\begin{gathered} -x+y\text{ or x-y} \\ the\text{ sign of the result depends on the greates absolute value, it means the answer will have the same of the bigger number( absolute value)} \end{gathered}$

d)The values of the two integers are opposites

as the point C , the sign depends on the bigger number

for example

$\begin{gathered} 8-5=3\text{ positive because 8 is the bigger} \\ 5-8=-3\text{ negative because (-8) is has the bigger absolute value} \end{gathered}$

so, the answer is Both integers have negative values

I hope this helps you

3 0

1 year ago

Need help on this please still lost on this

stealth61 [152]

Step-by-step explanation:

Area of Circle =

$\pi {r}^{2} \\ = \pi {(4)}^{2} \\ = 16\pi {km}^{2}$