Ask question

Ask question

All categories

3 years ago

9

Hey there! Can you help me please ? Thanks!

2 answers:

svetoff [14.1K]3 years ago

6 0

9(a)
$Area_{ABCD}=110*140=15400 \ cm^2\\
DO=180-110=70 \ cm \\DF=140-50=90 \ cm \\ Area_{DOF}= \frac{70*90}{2}= 3150 \ cm^2 \\ Area_{ABCO}=15400+3150=18550 \ cm^2$

9(b)
Area = (4*6)/2 = 12

Second picture
$Area_{ABCE}=8^2=64 \ ft^2 \\ DE= \sqrt{10^2-8^2}= \sqrt{36}=6 \ ft \\
Area_{ADE}=(6*8)/2=24 \ ft^2 \\ Area_{ABCD}=64+24=88 \ ft^2$

Vinil7 [7]3 years ago

5 0

A. (140x110)+[(50x70)/2] = 15,400+1750= 17,150cm^2

b. (4x6)/2= 12cm^2

You might be interested in

I do not understand this

Ganezh [65]

It’s graph C because you want to get X by itself so you divide both sides by 2 and you get x>25 so the dot will go on 25 and the arrow will point to the right

Hope this helps :)

8 0

3 years ago

From the sum of polynomials 3a2−ab−2b2 and 2a2+5ab−3b2 subtract polynomial a2−3ab−4b2.

malfutka [58]

Answer:

$4a^2+7ab-b^2$

Step-by-step explanation:

First, we will sum

$3a^2-ab-2b^2$

and

$2a^2+5ab-3b^2$

Then, from that sum, we will SUBTRACT $a^2-3ab-4b^2$

First, lets take the sum by combining like terms:

$(3a^2-ab-2b^2)+(2a^2+5ab-3b^2)=5a^2+4ab-5b^2$

Now, lets do the subtraction:

$(5a^2+4ab-5b^2)-(a^2-3ab-4b^2)\\=5a^2+4ab-5b^2-a^2+3ab+4b^2\\=4a^2+7ab-b^2$

This is the answer.

3 0

3 years ago

You invest AED 5000 in a saving account that earns 4% interest each year. If you do not use the account for a year, how much mon

Viktor [21]

Answer:

5200 AED or 1404 USD

Step-by-step explanation:

You have 5000 in your account. If your money grows 4% each year, it's basically like multiplying by 1.04.

5000 * 1.04 = 5200

If the question is asking in USD, the conversion rate from AED to USD is

AED * 0.27 = USD

We can substitute

5200 AED* 0.27 = 1404 USD.

6 0

3 years ago

Lamont lost 8 yards in the first quarter

beks73 [17]

The answer is -6 sorry could not explain because have to go somewhere hope it helped

3 0

3 years ago

Dalton is playing a game in which the object is to obtain a 0 by adding the points scored during each round

Katen [24]

The answer to this question is 52

3 0

3 years ago