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Arte-miy333 [17]

3 years ago

13

Find the area of the shape shown below

1 answer:

zhannawk [14.2K]3 years ago

3 0

To find the area of the shape, you can split the shape into 2 shapes, a rectangle and a triangle. The area of a rectangle is A=l x w and the area of a triangle is A=1/2 bh. The are of the rectangle is 200 since 20 times 10 is 200. The area of the triangle is 20 times 4 divided by 2. The area of the triangle is 40. Add both areas to get the total are of 240. The area of the shape is 240.

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Which number line represents the solution set for the inequality -1/2x>4?

jasenka [17]

Answer:

2nd Option

Step-by-step explanation:

Hello!

First, let's solve the inequality for x.

<h3>Solve for x</h3>

$-\frac12x \ge 4$
$x \le-8$

Since the symbol is less than or equal to, it will be a closed circle on Point -8 going in the left direction (all values less than -8).

The answer is the Second Number Line.

8 0

2 years ago

If d(x) = x2 - 7x - 7, find d(x - 1).

satela [25.4K]

Answer: x^2-9x+1

Step-by-step explanation:

x^2-7x-7 d(x-1)

(you would just replace x to (x-1)

(x-1)^2-7(x-1)-7

(solve by square rooting (x-1)(x-1) then foil)

x^2-9x+1

7 0

3 years ago

Nolan began a savings account three years ago. He invested $100 at a 2% interest rate according to the equation Vn = 100(1.02)x,

brilliants [131]

Answer:

The required amount is $94.23.

Step-by-step explanation:

It is given that Nolan began a savings account three years ago and the value of his account after x years is

$V_n=100(1.02)^x$

Anias started an account today and the value of her account is

$V_a=100(1.02)^{x-3}$

We have to find the amount of money that would she have had to invest to have the same amount of money she has now.

Let the required amount be P.

If Anias started saving x amount in the savings account three years ago, then today the value of her account is

$V_a=P(1.02)^3$

The current value is 100.

$100=P(0.0612)$

Divide both sides by 0.0612.

$\frac{100}{0.0612}=P$

$94.2322=P$

$P\approx 94.23$

Therefore the required amount is $94.23.

4 0

3 years ago

Help..... please math

marusya05 [52]

Answer:

Ones: 91

Hundredths: 91.20

Step-by-step explanation:

All numbers that comprises the digits, 91.20, have place value.

The 9 in the digit has a place value of tens, i.e. 9*10 = 90.

The 1 has a place value of one's, i.e. 1*1 = 1

The 2, after the decimal point to the right, has a place value of tenth, i.e. 1*10-¹ = ⅒ = 0.1

While the zero has a place value of hundredth.

Therefore, the digits, in the ones place = 91

In the hundredths place = 91.20

6 0

4 years ago

Please help with math show your work

Vitek1552 [10]

= 3(2) + 6 + 5(2) - 2
= 6 + 6 + 10 - 2
= 20

8 0

4 years ago

Read 2 more answers