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3 years ago

What are these two answers ? please help ASAP

Mathematics

2 answers:

Eddi Din [679]3 years ago

7 0

Question 4: true?
question 5: true

pentagon [3]3 years ago

5 0

√49 = 7 and 7 is a rational number.

So √49 is a rational number. So it is true.

√81 = 9 and 9 is a rational number.

So √81 is a rational number. So it is also true.

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Use the symbolic form of the gas cost of fill-up function,, to evaluate

UkoKoshka [18]

Answer:

0, $12.40, $24.79, $37.19, $49.58

0 ≤ f(g) ≤ 49.58

Step-by-step explanation:

The cost of fill up gas, f(g) as a function of number of gallons of gas needed (g) is given by f(g) = 2.479g ........(1)

So, f(0) = $0

f(5) = 2.479 × 5 = $12.40

f(10) = 2.479 × 10 = $24.79

f(15) = 2.479 × 15 = $37.19

and f(20) = 2.479 × 20 = $49.58

And the practical range of this function is 0 ≤ f(g) ≤ 49.58

Therefore, option D is correct. (Answer)

7 0

4 years ago

Read 2 more answers

Need help asap !!!!!

Mandarinka [93]

The answer should be 61

4 0

3 years ago

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juan Has a 32 ounce drink.he drinks 16 ounces. select the percentage of ounces juan has left of his drink. a) 25% b) 35% c)71% d

olganol [36]

Answer:

A i think?

Step-by-step explanation:

25% probably

5 0

3 years ago

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a study of the effects of exercis used rats bred to have high or low capacity for exercise. The 8 high capacity rats had mean bl

zavuch27 [327]

Answer:

$t=-2.86$

Step-by-step explanation:

From the question we are told that:

Sample 1 $n_1=8$

Sample 1 mean blood pressure $\=x_1=89mmHg$

Sample 1 variance $\sigma_1=81$

Sample 2 $n_2=8$

Sample 2 mean blood pressure $\=x_2=105mmHg$

Sample 2 variance $\sigma_2=169$

Generally the equation for the test of statistic is mathematically given by

$t=\frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_2}{n_1}+\frac{\sigma_2}{n_2} } }$

$t=\frac{89-105}{\sqrt{\frac{81}{8}+\frac{169}{8} } }$

$t=-2.86$

therefore the samples test for comparing the two population means

$t=-2.86$

3 0

3 years ago

Three less than 11 times a number

Zarrin [17]

Answer: x = -1

Calculation/Explanation:

11x-3 = x-13

11x-3 -x = x-13 -x

10x-3 = -13

10x-3 +3 = -13 +3

10x = -10

10x /10 = -10/10

x = -1

4 0

3 years ago