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4 years ago

Which phrase is not a way to state the meaning of the expression y-7

Mathematics

2 answers:

tekilochka [14]4 years ago

6 0

Answer:

<h2>B. A number subtracted from 7 .</h2>

Step-by-step explanation:

The given choices are

A. 7 less than a number

B. A number subtracted from 7

C. A number minus 7

D. The difference between a number and 7

The given expression is: $y-7$

Remeber, variabels are called "a number" indicating its variability, because they are unknown values.

So, this expression can be written as: "7 less than a numer" or "the difference between a number and 7" or "a number minus seven".

Therefore, among the options, choice B doesn't represents the given expression, because "a number subtracted from 7" is equivalent to $7-y$ which is not the case here.

So, the right answer is B.

tankabanditka [31]4 years ago

4 0

You're not showing any options... However i will elaborate to you what the expression y - 7 means

if the case is translation then it means that from the pre image to the image there will be a move of y intercept 7 units down...

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A rectangular playground measure 200m by 100m .caculate the area in square kilometers here is a tip when you have calculated the

Rainbow [258]

Area of a rectangle = L * W
200 * 100 = 20,000
= 20,000m^2
Convert that to km^2
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2 years ago

What is the answer for -5(a-6) + 2a

katen-ka-za [31]

Answer:

27a

Step-by-step explanation:

-5(a-6)+2a

-5a+30+2a

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3 years ago

Read 2 more answers

What is a counterexample for 3/4 and 6/8

inessss [21]

Answer:

While 3/4 and 6/8 are equivalent fractions, 3/4 and 6/8 of a pizza could represent different amounts.

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3 years ago

On 1st January 2020, Laurie invests P dollars in an account that pays a nominal annual interest rate of 5.5%, compounded quarter

andrezito [222]

Answer:

1) The common ratio = 1.055

2) The year in which the amount of money in Laurie's account will become double is the year 2032

Step-by-step explanation:

1) The given information are;

The date Laurie made the investment = 1st, January, 2020

The annual interest rate of the investment = 5.5%

Type of interest rate = Compound interest

Therefore, we have;

The value, amount, of the investment after a given number of year, given as follows;

Amount in her account = a, a × (1 + i), a × (1 + i)², a × (1 + i)³, a × (1 + i)ⁿ

Which is in the form of the sum of a geometric progression, Sₙ given as follows;

Sₙ = a + a × r + a × r² + a × r³ + ... + a × rⁿ

Where;

n = The number of years

Therefore, the common ratio = 1 + i = r = 1 + 0.055 = 1.055

The common ratio = 1.055

2) When the money doubles, we have;

2·a = a × rⁿ = a × 1.055ⁿ

2·a = a × 1.055ⁿ

2·a/a = 2 = 1.055ⁿ

2 = 1.055ⁿ

Taking log of both sides gives;

㏒2 = ㏒(1.055ⁿ) = n × ㏒(1.055)

㏒2 = n × ㏒(1.055)

n = ㏒2/(㏒(1.055)) ≈ 12.95

The number of years it will take for the amount of money in Laurie's account to double = n = 12.95 years

Therefore, the year in which the amount of money in Laurie's account will become double = 2020 + 12..95 = 2032.95 which is the year 2032

The year in which the amount of money in Laurie's account will become double = year 2032.

3 0

3 years ago

WILL GIVE BRAINLIEST

myrzilka [38]

Answer:

$\sqrt{11}$

Step-by-step explanation:

The square root of 11 is 3.31... this could be the answer.

3 0

3 years ago