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3 years ago

Someone please help me w this .

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

5 0

Answer:

the second one

Step-by-step explanation:

Alex73 [517]3 years ago

4 0

It’s (5,7) given that I don’t care equal 25 so help me so I can help you

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What is the value of the expression when s=2 and t=1.5 -3|5-s3|+3t

Anuta_ua [19.1K]

Answer:

-4.5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

|Absolute Value| - makes any negative number positive

Step-by-step explanation:

Step 1: Define

-3|5 - s³| + 3t

s = 2

t = 1.5

Step 2: Evaluate

Substitute in variables: -3|5 - 2³| + 3(1.5)
|Absolute Value| Exponents: -3|5 - 8| + 3(1.5)
|Absolute Value| Subtract: -3|-3| + 3(1.5)
Absolute Value: -3(3) + 3(1.5)
Multiply: -9 + 4.5
Add: -4.5

6 0

3 years ago

The graph of y=2x^2 is transformed into y=-2x^2+3 which of the following situations beat represets the effect of transformation

ZanzabumX [31]

Answer:

See below

Step-by-step explanation:

This is a reflection in the x axis ( the 2 ---> -2) and a translation up of 3 units (The +3).

8 0

3 years ago

Read 2 more answers

An elevator is rated to safely hold ten 250 lb people. The elevator is loaded as follows: three 600 lbs cartons of books, Jim (1

iris [78.8K]

To do this, we will need to find how much the elevator can hold in all. Multiply 10 by 250 to get 2500. Since it can also hold 10% more, multiply 2500 and 0.10 to find out how much 10% is. You get 250. Add 2500 and 250 to get how much the elevator can safely hold. It would be 2750.

To find out how much more weight can be added, first find out how much weight is on the elevator collectively. (books) 600+ (Jim) 180+ (Gavin) 330 + (Deb) 250 + (Susan) 120 = 1480. Subtract this from the amount the elevator can hold, and you get how much more weight can be added. 2750-1480= 1270.

The elevator can hold 1270 more ibs.

6 0

4 years ago

Read 2 more answers

in complete sentences, explain the process in which this equation would be solved. “Mr Crenshaw can grade one set of papers in 1

hammer [34]

Answer:

6 minutes

Step-by-step explanation:

Mr Crenshaw checks at a rate of 1/10 and Mr. Aguirre checks at a rate of 1/15.

If they work together, they will be checking at a combined rate of:

1/10 + 1/15 = [3(1) + 2(1)]/30

= 5/30 = 1/6

Their combined rate is 1/6 which means they check one set in 6 minutes

3 0

3 years ago

Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi

katrin2010 [14]

Answer:

Test scores of 10.2 or lower are significantly low.

Test scores of 31.4 or higher are significantly high.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 20.8, \sigma = 5.3$