All categories

3 years ago

A) Work out the value of 5^2 – 1^5× 2^4b) Work out the value of 7^2 + 4^3 ÷ 2^5

Mathematics

1 answer:

NemiM [27]3 years ago

8 0

First you have to know BODMAS/BIDMAS (idk if all schools teach it like this) but this is the order in which you complete questions so it’s Brackets, Indices, Division/Multiplication, Addition/Subtraction
a) 5^2 is 5x5 which equals 25 1 to the power of anything is always 1 and 2^4 is 2x2x2x2 which is 16
So 5^2-1^5x2^4 = 25-1x16 which is then 25-16 = 9
b) 7^2+4^3 divided by 2^5 so 7^2 is 7x7 which = 49 then 4^3 means 4x4x4 = 64 and 2^5 is 2x2x2x2x2 which equals 32 so
7^2+4^3 divides by 2^5 is 49+64/32 = 49+2 which is 51

You might be interested in

I also need help figuring this out - 2x^2 -7x - 15

Alexus [3.1K]

x = ±√ 7.500 = ± 2.73861

3 0

3 years ago

Please help & explain PLEASE

nydimaria [60]

The answers is A x=4.5y because for whatever y is you multiply it by 4.5 and it gives you your x. Trust me. They all match too; I checked.

7 0

3 years ago

Read 2 more answers

Geometry question on finding x.

Dmitrij [34]

Answer:

$x =63^o$

Step-by-step explanation:

Given :-

$\text{ $\overline{MN} $ and $\overline{ML}$ are tangents .}$

We know that the tangents are perpendicular to the radius at the point of contact . And here OLMN is a quadrilateral. Also we know that , the angle sum property a triangle is 360° .

According to question :-

$\implies x + 117^o + 90^o +90^o = 360^o \\\\\implies x + 297^o = 360^o \\\\\implies x = 360^o - 297^o \\\\\implies x = 63^o$

Hence the value of x is 63° .

6 0

3 years ago

There are two bags of marbles. One bag contains 4 yellow, 2 blue, and 10 green. The second bag contains 12 orange, 6 green, and

Furkat [3]

Answer:

Step-by-step explanation:

10+6 = 16

A is correct answer

6 0

3 years ago

Approximate square root 18 to the tenths and plot on number line

GenaCL600 [577]

Since 18 does not have a number that when multiplied by itself equal 18, then it will be a decimal number. You can tell the closest whole number by seeing what is the closest square. In this case we know that 16 is 4 times 4 and the next one would be 5 times 5 to equal 25, so the whole number would be 4.

Now, the easiest way to do this is to get you calculator and take the square root of 18 to get 4.242641. The problem wants it to be to the nearest tenth so 4.2 is your answer. On a number line, if it is in four parts, you will plot it just before the first little line.

Hope this helps! If you are using more small lines in you number line, comment me below and I would be happy to lead you in the right direction.

8 0

3 years ago

A) Work out the value of 5^2 – 1^5× 2^4b) Work out the value of 7^2 + 4^3 ÷ 2^5​

A) Work out the value of 5^2 – 1^5× 2^4b) Work out the value of 7^2 + 4^3 ÷ 2^5