2 years ago

What is the value of 3x² + 2y3 when x = -4 and y = -2

Mathematics

2 answers:

skad [1K]2 years ago

7 0

Ummmmmmm -26 ......... in

Sati [7]2 years ago

7 0

Answer:

Step-by-step explanation:

$3x^2 + 2y^3$ = $(3 * (-4))^2 + (2 * (-2))^3$ = $(-12)^2 + (-4)^3$ = $144 + (-64) = 80$

You might be interested in

Can you show me how you worked this: <br><br> Evaluate the expression.<br> 9! − 7!

Aloiza [94]

I hope this helps you

9.8.7!-7!

7! (72-1)

7!.71

3 0

2 years ago

Help me plssss hurry!!!!Which expressions are equivalent to 6+(-4) - 5?

Lunna [17]

Answer:

...................

8 0

2 years ago

When factoring x2 – 3xy + 2y2 by grouping the first step can be:

blagie [28]

Answer:

x^2 – 3xy + 2y^2

Step-by-step explanation:

Factor the following:

x^2 - 3 x y + 2 y^2

Hint: | Factor the quadratic x^2 - 3 x y + 2 y^2.

The factors of 2 that sum to -3 are -1 and -2. So, x^2 - 3 x y + 2 y^2 = (x - 1 y) (x - 2 y):

Answer: (x - y) (x - 2 y)

8 0

3 years ago

Caleb bought groceries and paid \$1.60$1.60dollar sign, 1, point, 60 in sales tax. The sales tax rate is 2.5\%2.5%2, point, 5, p

saveliy_v [14]

Answer:

Price of Caleb's groceries before tax = $64

Step-by-step explanation:

Let the price of groceries before tax be =$ $x$

Sales tax charged = $1.60

Sales tax rate =2.5%

Sales tax charged in terms of $x$ will be = 2.5% of the Original price of grocery = $2.5\% of x = 0.025\times x=0.025x$

So, we have,

$0.025x=1.60$

Dividing both sides by $0.025$

$\frac{0.025x}{0.025}=\frac{1.60}{0.025}$

∴ $x=64$

∴ Price of Caleb's groceries before tax = $64

5 0

3 years ago

I will give brainliest <br> show work please

Neko [114]

Answer:

Step-by-step explanation:

7 0

2 years ago