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3 years ago

Expain the diffents between numerical expressions and algebraic expressions

1 answer:

7 0

<h2>Numerical expressions are numbers and signs, like below. The following are some examples of numerical expressions, numerical expressions do not use letters. 4 + 20 – 7, (2 + 3) – 7, (6 × 2) ÷ 20, 5 ÷ (20 × 3) An algebraic expression uses letters and it says you to find "x/y/z". Example; 4+20xy-7x, (2x+3) - 7y+20.</h2>

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8/3 X 7/10 X 6/1 plz help me

Harlamova29_29 [7]

Answer:

are you mutiplying?

Step-by-step explanation:

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2 years ago

PLEASE HELP

Lena [83]

Answer:

11.4 cm

Step-by-step explanation:

Using pythagoras theorem,

3 0

2 years ago

Write an inequality to represent the phrase: the difference of a number and 9 is no more than 95

Sliva [168]

Answer:

$x-9\leq 95$

Step-by-step explanation:

Let

x ----> the number

we know that

The phrase " the phrase: the difference of a number and 9" is equal to

subtract the number 9 from the number x

(x-9)

The phrase" no more than 95" means "less than or equal to 95" (≤95)

The inequality that represent this situation is

$x-9\leq 95$

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3 years ago

Help meeeeeeeeeeeeeeeeeeeeeee !!!!!

stiv31 [10]

Answer:

i think it is the 2nd one and the 5th one.

Step-by-step explanation:

hope this helped!

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6 0

3 years ago

Consider college officials in admissions registration, counseling, financial aid campus ministry, food services, and so on. How

andre [41]

Since sample size is > 40, we use the z-score in calculating for the confidence interval.

The formula is given as:

Confidence Interval = X ± z * σ / sqrt (n)

Where,

X = mean = $50,340

z = z-score which is taken from standard distribution tables at 90% confidence interval = 1.645

σ = standard deviation = $10,780

n = sample size = 45

Substituting to the equation:

Confidence Interval = 50,340 ± 1.645 * 10,780 / sqrt (45)

Confidence Interval = 50,340 ± 1,607

Confidence Interval = $48,733 to $51,947

<span>Therefore the salary range of the personnel is $48,733 to $51,947.</span>

5 0

3 years ago