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2 years ago

7) What is the area of the figure below? 12 cm 13 cm 20 cm 21 cm

Mathematics

1 answer:

Inessa05 [86]2 years ago

4 0

Answer:

65,520

Step-by-step explanation:

12x13x20x21=64,520

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19. Which is the suitable identity used to evaluate 9992 ?

andrew11 [14]

Answer:

I suppose you mean 999^2

(1000-1)^2

which comes under the identity

(a-b)^2=

(a^2 + b^2 - 2ab)

hope this helps

5 0

3 years ago

Using what you have learned about solving systems of equations, find the number that represents the apple, banana, and cherry.

sineoko [7]

Answer:

$Apple \to 4$

$Banana \to 4$

$Cherry \to 5$

Step-by-step explanation:

Given

$A \to Apple$

$B \to Banana$

$C \to Cherry$

From the rows, the equation is:

$B + 2A =12$ --- (1)

$2B + C = 13$ --- (2)

$A + 2C = 14$ --- (3)

Make A the subject in: $A + 2C = 14$

$A = 14 -2C$

Substitute $A = 14 -2C$ in $B + 2A =12$

$B + 2(14 - 2C ) = 12$

$B + 28 - 4C = 12$

Make B the subject

$B = 4C - 28 +12$

$B = 4C -16$

Substitute $B = 4C -16$ in $2B + C = 13$

$2(4C - 16) + C = 13$

$8C - 32 + C = 13$

Collect like terms

$8C + C = 13+32$

$9C = 45$

Divide by 9

$C = 5$

Recall that:

$B = 4C -16$

$B =4*5-16$

$B =20-16$

$B =4$

Recall that:

$A = 14 -2C$

$A= 14 -2*5$

$A= 14 -10$

$A =4$

Hence:

$Apple \to 4$

$Banana \to 4$

$Cherry \to 5$

3 0

3 years ago

The total price of apples (y) at an orchard can be calculated with the equation y=1.25x+5, where x is the number of pounds of ap

Anna11 [10]

Given:

The total price of apples (y) at an orchard can be calculated with the equation

$y=1.25x+5$

where, x is the number of pounds of apples picked.

To find:

The interpretation of slope for the given situation.

Solution:

The slope intercept form is

$y=mx+b$ ...(i)

where, m is slope and b is y-intercept.

We have,

$y=1.25x+5$ ...(ii)

On comparing (i) and (ii), we get

$m=1.25, b=5$

Slope = 1.25.

We know that, y is total price of x pounds of apples picked and slope is change in y with respect to x.

Therefore, the slope of the given equation is 1.25 and it means the price increased by 1.25 for each additional pounds of apples.

8 0

2 years ago

Hackensack and New York City are 12 miles apart. On a map, the two cities are 2 Inches apart. How many miles does 1 Inch represe

Margaret [11]

Answer:

6 miles

Step-by-step explanation:

From the question, we are told that 12 miles represents 2 inches on the map.

We are to calculate the amount of miles 1 inch will represent. To do this you will say:

12 miles = 2 inches

x miles = 1 in

Cross multiply;

2 * x = 12 * 1

2x = 12

x = 12/2

x = 6

Hence 1 inch will represents 6 miles on the map

3 0

3 years ago

1. How much will Claire have after 2 years? 2. Also how much will she have after 5 years

kap26 [50]

Answer:

1. $329.60

2. $824.00

Step-by-step explanation:

1.03 x 2= 2.06

2.06 x 160= 329.60

1.03 x 5= 5.15

5.15 x 160= 824

3 0

3 years ago