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3 years ago

Find the three highest whole numbers that satisfy 2(3x+1)⩽ 1/2(2x-5).

Mathematics

2 answers:

jolli1 [7]3 years ago

7 0

Answer:

-1, -2 and -3

Step-by-step explanation:

2(3x + 1) ⩽ (1/2)(2x - 5)

Open up Parentheses

6x + 2 ⩽ x - (2.5)

Isolate Variable

5x ⩽ -4.5

x ⩽ -.9

The 3 highest whole numbers ⩽ -.9 are -1, -2, and -3

Degger [83]3 years ago

6 0

Answer:

-1, -2 ,-3

Step-by-step explanation:

2(3x+1)⩽ 1/2(2x-5)

Distribute

6x+2 ⩽ x-5/2

Subtract x from each side

6x-x +2 ⩽ x-x-5/2

5x +2 ⩽ -5/2

Subtract 2 from each side

5x+2-2 ⩽ -5/2 -2

5x ⩽ -5/2 -4/2

5x ⩽ -9/2

Divide each side by 5

5x/5 ⩽ -9/2 /5

x ⩽ -9/10

The largest whole numbers that satisfy

-1, -2 ,-3

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Answer:

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Step-by-step explanation:

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3 years ago

A university is applying classification methods in order to identify alumni who may be interested in donating money. The univers

HACTEHA [7]

The accuracy in the research done by university is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Given sample size of 58205 and proportion of people donated 576. Cutoff is 0.5.

Probability is the chance of happening an event among all the events possible. It lies between 0 and 1.

TP=total people donated in sample, TN=total number of people,FP=donation,FN=No donation

Accuracy is calculated as under:

=(TP+TN)/(TP+TN+FP+FN)

=(268+23439)/(238+23439+5375+20)

=23707/29102

=0.81

Accuracy=0.81

Sensitivity is calculated as under:

=TP/(TP+FN)

=268/(268+20)

=268/288

=0.93

Precision is calculated as under:

=TP/(TP+FP)

=268/(268+5375)

=268/5643

=0.047

Their values are the probabilities in itself.

Hence accuracy is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Learn more about probability at brainly.com/question/24756209

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7 0

2 years ago

HELP PLEASE!

Archy [21]

Answer:

Option 2 50 ≤ s ≤ 100

Option 5 She could deposit $50

Option 6 She could deposit $75

Step-by-step explanation:

Let

s -----> amount of money Layla deposit into a saving account

we know that

25%=25/100=0.25

50%=50/100=0.50

$s\geq 0.25*200$ -----> $s\geq \$50$

$s\leq 0.50*200$ -----> $s\leq \$100$

The compound inequality is

$\$50 \leq s\leq \$100$

Verify each case

case 1) 25 ≤ s ≤ 50

The statement is false

see the procedure

case 2) 50 ≤ s ≤ 100

The statement is True

see the procedure

case 3) s ≤ 25 or s ≥ 50

The statement is false

Because is s ≤ 100 and s ≥ 50

case 4) s ≤ 50 or s ≥ 100

The statement is false

Because is s ≤ 100 and s ≥ 50

case 5) She could deposit $50

The statement is true

Because the value of s satisfy the compound inequality $\$50 \leq s\leq \$100$

case 6) She could deposit $75

The statement is true

Because the value of s satisfy the compound inequality $\$50 \leq s\leq \$100$

3 0

4 years ago

Read 2 more answers

Find the three highest whole numbers that satisfy 2(3x+1)⩽ 1/2(2x-5).​

Find the three highest whole numbers that satisfy 2(3x+1)⩽ 1/2(2x-5).