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3 years ago

Please help me! :( i'll mark you brainliest <3 20 point (maths)

Mathematics

2 answers:

bogdanovich [222]3 years ago

8 0

Answer: a) 4 b) you could make up to 8 liters

Step-by-step explanation:

MrRa [10]3 years ago

8 0

Answer:

See Below! :)

Step-by-step explanation:

The answer to a is just 1.5 x 8

The answer to b is no

Hope this Helps! :D

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David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint

lbvjy [14]

Answer:

2.4 hours

Step-by-step explanation:

David's time = 6 hours

Anthony's time = 4 hours

the combined time is given by the following formula

1/ (david's time) + 1/(anthony's time) = 1/total time

1/6 + 1/4 = 1/Total

4/24 + 6/24 = 1/Total

10/24 = 1/ total (taking reciprocal of both sides)

24/10 = total

total time = 24/10 = 2.4 hours

5 0

3 years ago

Find the measure of angle A: find the measure of angle B:

ipn [44]

Answer:

Hi...

2x+4+2x-9+x=180

5x-5=180

5x=185

X=185/5=37....so

A=2*37-9=65

B=2*37-4=70

3 0

3 years ago

Read 2 more answers

N divided by 8, then subtract 3 from the quotient

Lemur [1.5K]

Answer:

$\frac{n}{8} -3$

Step-by-step explanation:

n, a number is being divided by 8, and then 3 is being subtracted from the quotient.

4 0

3 years ago

niles casts a shadow that is 8 feet long and at the same time his dog casts a shadow that is 30 inches long. If niles 5 1\2 feet

aniked [119]

Let d be the height of the dog. Then, in inches:
66/96=d/30
96d=1980
d=20.625 inches as the height of the dog.

7 0

4 years ago

Write as a monomial in standard form (−4x^2ya^3)^2

svetoff [14.1K]

The given monomial in standard form is $16a^6x^4y^2$

Solution:

A Monomial in standard form is the product of one or more factors: a constant coefficient and one factor for each variable in the expression.

Given monomial is:

$(-4x^2ya^3)^2$

We use the following law of exponents to solve the above monomial:

$(ab)^n = a^nb^n\\\\(a^n)^m = a^{mn}$

Using these in given monomial, we get

$(-4x^2ya^3)^2 = (-4)^2(x^2)^2(y)^2(a^3)^2$

Now applying the law of exponent $(a^n)^m = a^{mn}$ we get,

$(-4)^2(x^2)^2(y)^2(a^3)^2 = 16x^{2 \times 2}y^2a^{3 \times 2} = 16x^4y^2a^6$

A monomial is in standard form when its term of highest degree is first, its term of 2nd highest is 2nd etc

Writing in standard form we get,

$\rightarrow 16a^6x^4y^2$

Thus the given monomial is written in standard form

7 0

3 years ago

Read 2 more answers