What is −1 2/3⋅(−5 1/4) ? −8 3/4 −5 1/6 5 1/6 8 3/4

Brainliest and 30 points please help

kolbaska11 [484]

Answer:

22. Perimeter = 52 units

Area = 160 Square Units

23. Notation form : $2 \times 10^{5}$

Standard Form : 200000

Step-by-step explanation:

22.

The formula for perimeter is

P = 2 (length + Width )

= 2 ( 2x+3x+1)

= 2(5x+1)

The Formula for Area of a rectangle is

A= length x width

A= $2x \times (3x+1)$

A= $6x^2+2x$

Now we have to find the Perimeter and Area for x = 5

P = 2(5 x 5 +1)

P= 2(26)

P=52 units

A= 6 x 5 x 5 + 2 x 5

A= 150 + 10

A= 160 square units

23.

A. By using rule of exponents , we can determine that both the results will be same.

B.

Miriam's calculation

$\frac{2.8 \times 10^{9}}{1.4 \times 10^{4}}$

$\frac{2.8}{1.4} \times 10^{9-4}$

$2 \times 10^5$

Priya's calculation

$\frac{2.8 \times 10^{2}}{1.4 \times 10^{-3}}$

$\frac{2.8}{1.4} \times 10^{2-(-3)}$

$2 \times 10^5$

Standard notation

$2 \times 10^5 = 200000$

4 0

3 years ago

The following graph shows a proportional relationship.

Nina [5.8K]

Answer:

1.5

Step-by-step explanation:

$k=\frac{y}{x}\\\\k=\frac{6}{4}\\\\k=1.5$

8 0

3 years ago

3(4-2x)=-2x will make brainiest to the first two people that answer correctly with explanation

ASHA 777 [7]

Answer:

x = 3

Step-by-step explanation:

First, distribute 3 into the parenthesis:

3(4 - 2x) = -2x

12 - 6x = -2x

Next, combine your x variables by adding +6x to both side:

12 - 6x = -2x (-6x and +6x cancel out)

+6x +6x

12 = 4x (divide 12 by 4 to get x by itself)

/4 /4

x = 3

3 0

3 years ago

Pls help 100 point i really need help

Umnica [9.8K]

Answer:

ASA - Angle Side Angle, it creates two separate triangles that face each other in which makes it identified as an Angle Side Angle.

(Picture Placed Below)

Step-by-step explanation:

3 0

3 years ago

In an 80/20 mortgage, what is the first mortgage used for?

ludmilkaskok [199]

Answer:

i think its letter B. 20% down payment

5 0

2 years ago