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2 years ago

What’s the area?? BTW THE ANSWER IS NOT 78

Mathematics

2 answers:

igomit [66]2 years ago

5 0

Answer:

Step-by-step explanation:

7 * 6 is 42 then divide by 2 = 21

12 * 10 is 120

120 - 21 = 99

tangare [24]2 years ago

4 0

Answer:

She shaded area?

12 x 10 = 120

6 x 7 = 42

42 divided by 2 = 21

Now we subtract both areas:

120 - 21 = 99 of the shaded region.

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Fnd the highest common factor of -8xy and 20y

DaniilM [7]

Answer:

$\huge\boxed{\boxed{2}\cdot\boxed{2}\cdot\boxed{y}=4y}$

Step-by-step explanation:

$-8y=-2\cdot\boxed{2}\cdot\boxed{2}\cdot \boxed{y}\\\\20y=\boxed{2}\cdot\boxed{2}\cdot5\cdot\boxed{y}$

8 0

2 years ago

1/2 + 2/5s = s - 3/4

kakasveta [241]

Answer:

25/12

Step-by-step explanation:

1/2 + 2/5s = s - 3/4

2/5s = s - 5/4

-3/5s = -5/4

s = 25/12

4 0

3 years ago

What is the common ratio and explicit formula for -2,6,-18,54?

Snezhnost [94]

Answer:

The explicit formula for a given geometric sequence is of the form

$a_{4} =\frac{1}{(a_{1})^4}$

Step-by-step explanation:

Given sequence is ${\{-2,6,-18,54}\}$

Let $a_{1}=-2,a_{2}=6,a_{3}=-18,a_{4}=54$

To find the common ratio r:

$r=\frac{a_{2}}{a_{1}}$

$=\frac{6}{-2}$

$=-3$

Therefore r=-3

$r=\frac{a_{3}}{a_{2}}$

$=\frac{-18}{6}$

$=-3$

Therefore r=-3

Therefore common ratio is -3

Therefore given sequence is geometric sequence.

The explicit formula for a geometric sequence is $a_{n}=a_{1}^{r-1}$ , where common ratio is r.

From given sequence we are having r=-3

Therefore the explicit formula for a given geometric sequence is of the form $a_{4} =a_{1}^{-3-1}$

$a_{4} =a_{1}^{-4}$

$a_{4} =\frac{1}{(a_{1})^4}$

6 0

3 years ago

Expression A: 4x + 5 Expression B: 2 + 4x + 3 Which statement can be used to show that these expressions are equivalent?

Alexandra [31]

Answer:

Step-by-step explanation:

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3 years ago

Matt bought a new car at a cost of $25,000. The car depreciates approximately 15% of its value each year. What will the car be w

White raven [17]

The car will be worth $4,921.86

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3 years ago