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3 years ago

5(n–2)=5n–10how many solutions does it have

Mathematics

1 answer:

Travka [436]3 years ago

4 0

since the equation on the left can be rewritten :

to be 5n-10 then both sides of the equation are equal

so any real number will work

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Which number in the monomial 125x^18 y^3 z^25 need to be changed to make it a perfect cube

Serhud [2]

The power of 25 on the variable z needs to be changed. It has to be divisible by 3.

6 0

3 years ago

Uncle Sam sells cups at a shop. For every cup he sells, he collects 20% of the price of the cup. For every 10 cups that he sells

svlad2 [7]

Answer:

if its uncle sam IT MUST BE A CONSPIRACY!!!

Step-by-step explanation:

UNCLE SAM IS WATCHING

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3 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

$(AC)^{2}=369+99.22944809412$

$(AC)^{2}=468.22944809412$

Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

$AC=21.6386101238993629\approx 21.64$

Therefore, the length of b is 21.64 and option B is the correct choice.

6 0

3 years ago

19.

vichka [17]

Answer:

168

Step-by-step explanation:

Sum the parts of the ratio, 6 + 7 = 13 parts

Divide the total number of students by 13 to find the value of one part of the ratio.

364 ÷ 13 = 28 ← value of 1 part of the ratio, thus

number of girls = 6 × 28 = 168

3 0

3 years ago

2.789 in word form and in expanded form

mylen [45]

Word form:
Two and seven hundred eighty-nine thousandths

Expanded form:

2

+ 0.7

+ 0.08

+ 0.009

5 0

3 years ago

Read 2 more answers