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3 years ago

Factorise the following: a) x + 10x + 16

Mathematics

1 answer:

sertanlavr [38]3 years ago

4 0

Answer:

Step-by-step explanation:

x + 10x = 11x

= 11x + 16

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What is the answer to 7y 5y-5y?

Katena32 [7]

-17 would be the answer to this problem

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3 years ago

The shown bellow question answer

Serhud [2]

Answer:

The area of the shape can be divided into the area of the rectangle, and the area of the semi-circle.

The area of the rectangle can be found by $11*4=44$

The area of a semi-circle can be found with the formula $\frac{1}{2} \pi r^2$ where r is the radius.

Since we know the diameter of the semi-circle is 4,

the radius will be 4 ÷ 2 = 2.

Therefore, the area of the semi-circle is $\frac{1}{2}\pi 2^2=\frac{1}{2}\pi*4=2\pi$

Therefore, the area of the shape is $44+2\pi$ or $50.283cm^2$ (3 decimal places)

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2 years ago

Can someone please help with the last problem

Brut [27]

Answer:

18x +9h

Step-by-step explanation:

Such problems are tedious, but not difficult. The trick is to avoid making mistakes in the algebra.

$\dfrac{f(x+h)-f(x)}{h}=\dfrac{(9(x+h)^2)-(9x^2)}{h}\\\\=\dfrac{9(x^2+2xh+h^2)-9x^2}{h}=\dfrac{18xh+9h^2}{h}=\boxed{18x+9h}$

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2 years ago

Jack is 1.75 m tall and casts a shadow 2.25 m long. At the same time, a statue casts a shadow 9 m long. What is the height of th

Arisa [49]

7m
1.75 divided by 2.25 = 0.77777777...
0.77777777.. times by 9 = 7

5 0

3 years ago

Read 2 more answers

If I am adding one positive number and one negative number, will the answer be positive or negative? What does it depend on?

maxonik [38]

It depends on which number has the greatest absolute value.

Think about it as money

If you owe me $10, this is shown as -10

Now if I give you back 2 dollars (+2), How much money do I still owe you.

The equation is -10+2

I still owe you 8 dollars which is portrayed as -8

Hope this helps :)

8 0

3 years ago