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3 years ago

Please answer now this is a big test which description best fits the group

Mathematics

1 answer:

Alina [70]3 years ago

3 0

Answer:

Always decreasing so answer B

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1. John’s age is three times that of his sister. When you add John’s age to his sister's age, you get 36. How old are John and h

iren [92.7K]

Answer:

sister = 6 years

John=18 years

Step-by-step explanation:

A(S) + 12 = 3 * A(S), subtracting A(S) from both sides one gets 12 = 2 * A(S). Now dividing both sides by 2 we get A(S) = 12/2 = 6 . Therefore, the age of the sister is 6 years when her brother John is three times as old, that is 18 years.

6 0

2 years ago

Read 2 more answers

What is the coefficient of the x5y5-term in the binomial expansion of (2x – 3y)10? 10C5(2)5(3)5 10C5(2)5(–3)5 –10C5(2)5(–3)5 10C

butalik [34]

ANSWER

$10C_5(2)^{5}( - 3)^5$

EXPLANATION

The given binomial expansion is:

${(2x - 3y)}^{10}$

Compare this to

${(a + b)}^{n}$

we have a=2x , b=-3y and n=10

We want to find the coefficient of the term

${x}^{5} {y}^{5}$

This implies that, r=5.

The terms in the expansion can be obtained using

$T_{r+1}=nC_ra^{n-r}b^r$

We substitute the given values to obtain;

$T_{5+1}=10C_5(2x)^{10-5}( - 3y)^5$

$T_{6}=10C_5(2x)^{5}(3y)^5$

$T_{6}=10C_5(2)^{5}( - 3)^5 {x}^{5} {y}^{5}$

Hence the coefficient is;

$10C_5(2)^{5}( - 3)^5$

5 0

3 years ago

Read 2 more answers

Which table shows y as a function of x

ANTONII [103]

The answer should be C :) in order for there to be a function, first rule is the x number cannot repeat

3 0

2 years ago

Find the mode of this set of data 18,27,28,44,44,50,67

8_murik_8 [283]

Answer:

Step-by-step explanation:

the mode of a set of data is the value that occurs most often, in this case it is 44

8 0

2 years ago

Read 2 more answers

I need some help here plz

Svetllana [295]

Answer:

I don't know if this is correct but id say

$5500 \times \frac{2}{100} = 55 \times 2 = 110$

Step-by-step explanation:

the interest is 2 % so you'd say 2/100 times the amount of money in the interest so that is 2% of 5500

the interest is 110

7 0

2 years ago

Please answer now this is a big test which description best fits the group​

Please answer now this is a big test which description best fits the group