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2 years ago

Can someone help me with this?

Mathematics

2 answers:

asambeis [7]2 years ago

7 0

Yes, it looks like you are working with powers (the little numbers by the larger number) I assume you now multiplication if you are working on this so here is how you solve those problems. For my example, I will use problem (i)

You start with the numbers with powers so the first 4 a power is just a number multiplied by itself that many times. So you end up with

(4 x 4) x (4 x 4 x4) x (5 x 5 x 5)

----------------------------------------------

4 x 5

multiply inside the parithesis to get

16 x 64 x 125

-------------------

4 x 5

multiply across to get

128000

------------

then divide leaving you with the answer

6400

Hope this helps!

mestny [16]2 years ago

3 0

Answer:

Ok so the first one is 5 to the 0th power it is its self the second one is 8 to the first power meaning 8* 8 = 64

Step-by-step explanation:

to get this all that you have to do is multiply the big number by the amount of times the little number is

example 2 to the 3rd power would be 2*2*2 and the product is your answer

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Find the sum of -4 and -3

WINSTONCH [101]

-4 + -3 = -7 Hope this helps!

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2 years ago

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40x=10x^2+41 Identify the number of solutions and their types using the discriminant

nydimaria [60]

Number of solutions: no roots

Type of solution: Not Real

Step-by-step explanation:

We need to identify the number of solutions and their types using the discriminant.

We are given: $40x=10x^2+41\\$

Rearranging:

$40x-10x^2-41=0\\10x^2-40x+41=0$

Discriminant can be found by: $b^2-4ac$

where b=-40, a=10 and c=41

Putting values:

$b^2-4ac\\=(-40)^2-4(10)(41)\\=1600-1640\\=-40\\$

So, Discriminant is -40

If the discriminant is less than zero i.e -40 then there are no real roots.

So, Number of solutions: no roots

Type of solution: Not Real

Keywords: discriminant

Learn more about discriminant at:

#learnwithBrainly

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2 years ago

The volume of a shampoo filled into a container is uniformly distributed between 370 and 385 milliliters. (a) What are the mean

Olenka [21]

Answer:

(a) mean = 377.5ml. standard deviation = 4.33

(b) 0.333

Step-by-step explanation:

(a)The mean:

$\mu = \frac{385 + 370}{2} = 377.5 ml$

The standard deviation:

$\sigma = \frac{385 - 370}{\sqrt{12}} = 4.33$

(b)

$P(x < 375) = \frac{375 - 370}{385 - 370} = \frac{1}{3} \approx 0.333$

(c)P(x > m) = 0.95

$\frac{m - 370}{385 - 370} = 0.95$

$m - 370 = 14.25$

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So the volumn of shampoo should be 384.25ml to exceed 95% of containers.

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Simplify 4xy + 9x - 3y + z + xy

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4xy + 9x - 3y + z + xy

Combine Like Terms
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=(4xy+xy)+(9x)+(−3y)+(z)
=5xy+9x+−3y+z

Answer =5xy+9x−3y+z

I hope this helps, can I get brainliest thanks

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The ratio of boys to girls in a group is 4:1. If there are 33 more boys than girls, work out how many people there are in total.

MissTica

Total number of people is 55

Step-by-step explanation:

Step 1:

Given ratio between boys and girls is 4:1. Let number of girls be x, so number of boys = 33 + x

⇒ 4x + x = x + 33 + x

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Step 2:

Find total number of people.

33 + 2x = 33 + 22 = 55

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