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3 years ago

Write two subtraction facts related to 7 + 5 =12

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

5 0

Answer:

12-5=7

12-7=5

Step-by-step explanation:

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image Find the area of the kite with diagonals a = 12 and b = 9. Question 5 options: A) 108 B) 72 C) 54 D) 30

FromTheMoon [43]

Answer:

108

Step-by-step explanation:

Because the area formula is a*b and 12*9 is 180

So the answer is 180 which is A

I hope this helps :)

3 0

3 years ago

Y is inversely proportional to x.

Inessa [10]

Answer:

1. $xy = 63$

2. $y = 3$

Step-by-step explanation:

Given

Variation: inverse Proportion

y = 7, x = 9

Required

- Write an equation connecting y and x

- Find y when x = 21

Given that thee variation is inversely proportional;

This implies that

$y\ \alpha\ \frac{1}{x}$

Convert variation to equation

$y\ = \frac{k}{x}$ ----------- Equation 1

Where k is the constant of variation

Substitute 7 for y and 9 for x in equation 1

$7 = \frac{k}{9}$

Multiply both sides by 9

$9 * 7 = 9 * \frac{k}{9}$

$63 = k$

Substitute 63 for k in equation 1

$y = \frac{63}{x}$

Multiply both sides by x

$x * y = \frac{63}{x} * x$

$xy = 63$

Hence, the equation connecting x and y is $xy = 63$

Solving for when x = 21

Substitute 21 for x in the above equation

$21 * y = 63$

Divide both sides by 21

$\frac{21 * y}{21} = \frac{63}{21}$

$y = 3$

4 0

3 years ago

Write two integers with different signs that have a sum of -25.

Scilla [17]

Answer:

-25+0

-30+5

-15-10

-20-5

3 0

3 years ago

Simplify. Rewrite the expression in the form 4". 49 45

nexus9112 [7]

Answer:

$4^{9-5}$ = $4^{4}$

Step-by-step explanation:

3 0

3 years ago

Find the volume of the prism.

Zigmanuir [339]

Answer:

The correct answer is first option. 270 m³

Step-by-step explanation:

Formula:

Volume of prism = Base area * Height

Area of triangle = bh/2 where b - base and h - height

From the figure we can see that height of prism = 36 m

Base is a right angled triangle with base 5 m and height = 3 m

To find the Base area

Area of triangle = bh/2 = (3 * 5)/2 = 15/2 = 7.5

To find the volume of prism

Volume = Base area * height = 7.5 * 36 = 270 m³

Therefore the correct answer is first option . 270 m³

7 0

2 years ago

Read 2 more answers

Write two subtraction facts related to 7 + 5 =12​

Write two subtraction facts related to 7 + 5 =12