All categories

3 years ago

Evaluate the expression. Will choose brainliest

Mathematics

2 answers:

const2013 [10]3 years ago

8 0

Answer:

-213

Step-by-step explanation:

=3|x+y|²-(xy)²

Subtitute value of x and y above:

=3(|3+-5|)²-(3×-5)²

=3(|-2|)²-(-15)²

=3(2)²-(225)

=3(4)-225

=12-225

=-213

Note: If you need to ask question,I'll gladly give you answee.Thanks

svet-max [94.6K]3 years ago

3 0

Answer:

-213

Step-by-step explanation:

3|3-5|^2-(-15)^2

3(4)-225

=12-225= -213

You might be interested in

0.65 repeating as a decimal

vladimir1956 [14]

If .65 were to repeat it would be .656565656565656

5 0

2 years ago

Jordan is cutting a 2 meter by 1 1/4 meter into two pieces by its diagonal line

Airida [17]

Question:

Jordan is cutting a 2 meter by $1\frac{1}{4}$ meter piece of rectangular paper into two pieces along its diagonal. what is the area of each of the pieces?

Answer:

Area of each piece of paper is $1 \frac{1}{4} \ m^2$ .

Solution:

Length of the paper = 2 m

Width of the paper = $1\frac{1}{4}$ m = $\frac{5}{4}$ m

Area of the rectangle = length × width

$$=2\times \frac{5}{4}$

$$= \frac{5}{2} \ m^2$

Diagonal of a rectangle divides it into two equal parts.

Area of each piece = Area of the rectangle ÷ 2

$$=\frac{ \frac{5}{2}}{2}$

$$=\frac{5}{4} \ m^2$

$$=1 \frac{1}{4} \ m^2$

Area of each piece of paper is $1 \frac{1}{4} \ m^2$ .

7 0

2 years ago

A cone has a diameter of 24 in. and a slant height of 15 in. What is the approximate volume of the cone? Use 3.14 to approximate

g100num [7]

So you are using Volume...

V=1/3(pi)r^2h
as you go thu this equation

15 x 15 =225
12 x12= 144
225-144= 81
81/9=9

which your piece would be 1/3 pi r^2h answer is 1356.48
and you round it to the nearest tenth. So

( 1356.5) is ur answer...... So (B)

8 0

3 years ago

How did Bill spend longer

JulsSmile [24]

How did bill spend longer .. days ... ? what

7 0

3 years ago

A set of three scores consists of the values 3, 7, and 2. Σ2(X – 3) =

siniylev [52]

Answer:

Step-by-step explanation:

$\sum 2(X-3)=2(3-3)+2(7-3)+2(2-3)=0+8-2=6$