Three times a number is no less than negative six.

Mathematics

2 answers:

Triss [41]4 years ago

6 0

Answer:

$3x\geq -6$

Step-by-step explanation:

Given that three times a number is no less than negative 6.

To solve this let us assume that the unknown number be x

3 times the number can be algebraically expressed as

$3x$

since this value is not less than 6, this value is either greater than or equal to 6.

Hence this can be written as inequality

$3x\geq -6$

tresset_1 [31]4 years ago

3 0

the equation for the stated problem would be:

3x ≥ -6

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What is the exact value of the expression the square root 72. − the square root of 8. + the square root of 128.? Simplify if pos

ivann1987 [24]

Remember, the exact value cannot involve any rounding or estimates. Now, let's solve this problem. First, we have to translate it into an expression:

√72 - √8 + √128     separate the terms into square roots

√36·2 - √4·2 + √64·2    square root the terms that you can

6√2 - 2√2 + 8√2 they have like radical terms, so combine the terms

6 - 2 + 8 = 12 the coefficients are 12 when combined

12√2    this is the EXACT VALUE of the expression

Hope this helps!

3 0

4 years ago

I need help finding the answer

Furkat [3]

First find how they got 10 inches out of 25 centimeters.
25/10 = 2.5
This means that they divided 25 by 2.5 to get 10, and this pattern will continue throughout the whole table.

105 × 2.5 = 42
There are about 42 inches in 105 centimeters.

Another way to do this is there are 0.39 inches in 1 centimeter.
105 × 0.39 = 40.95
This rounds to 41.
This answer is probably better.

6 0

3 years ago

Maureen earned some money doing odd jobs last summer and put it in a savings account that earns 9% interest compounded quarterly

ivolga24 [154]

Answer:

Maureen earned $123.19 doing odd jobs

Step-by-step explanation:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit year and t is the time in years for which the money is invested or borrowed.

In this question:

Compounded quarterly means that $n = 4$