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3 years ago

Write an expression for the area of square 4 by combining the areas of the four triangles and the two squares.

Mathematics

1 answer:

WARRIOR [948]3 years ago

3 0

Answer:

i will look it up

Step-by-step explanation:

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Using the diagram, find tan B. Express your answer as a decimal rounded to the nearest hundredth.

Maslowich

tan = opposite/hypotenyse

for B, this is 24/25

24/25 = 0.96

7 0

3 years ago

If (a^2 + b^2) (x^2 +y^2) = (ax + by )^2 then which relation is true?

NikAS [45]

Answer:

Step-by-step explanation:

Hello,

Let's develop both expressions and try to re factorise.

$\forall (a,b,x,y) \in \mathbb{R}^4 \\ \\ (a^2+b^2)(x^2+y^2)=(ax+by)^2\\ \\(ax)^2+(ay)^2+(bx)^2+(by)^2=(ax)^2+(by)^2+2(ax)(by)\\ \\ (ay)^2+(bx)^2-2(ay)(bx)=0\\ \\ (ay-bx)^2=0\\ \\ ay-bx=0\\ \\ \boxed{\sf \bf ay=bx}$

Thanks

6 0

4 years ago

Graph the inequality below on the number line.

marshall27 [118]

Answer:

You start at -9

-Open circle

-shade towards the right (where all the positive numbers are)

Open circle - ones that don't have a greater than or equal to. If it does then it's a closed one.

Shade towards the right cause y is less than 9

3 0

3 years ago

Read 2 more answers

Describe two methods for finding the sale price of an item that is discounted 30%. which method do you prefer? Explain.

Mekhanik [1.2K]

One can take the price of the item before the discount is applied and subtract that from the percentage off and get the cost of the item.

I find this is the most effective way.

another method could be if one turned the percentage into a decimal it could be subtracted from the cost of the item.

6 0

3 years ago

Read 2 more answers

Convert the following to sq. cm or to sq. m, as required.<br> 920 000 sq. cm= ______ sq. m

polet [3.4K]

Answer:

The answer is 92

Step-by-step explanation:

1 m = 10,000cm

920,000/10,000=92

7 0

2 years ago