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3 years ago

5

The recommended heart rate for weight management exercise and improving cardio fitness, in beats per minute, depend on a persons

age and can be represented by the expression 0.7(220-a)

1 answer:

Korolek [52]3 years ago

4 0

The answer to this question is true. If i'am right this from k12 and edg-enuity. have a good day bro. ;)

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The Thompson family is buying a car that can travel 70 miles

gogolik [260]

Answer:

The car gets 35 miles per gallons.

Step-by-step explanation:

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3 years ago

*PLS HELP!!*<br>{The Picture Is In The Attachment}

mash [69]

Answer:

B is 45 A is 135

Step-by-step explanation:

45 + 135 = 180

45 x 3 = 135

135 is three times as large as 45

135 and 45 are supplementary angles

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2 years ago

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3 years ago

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Let Z={a,c,{a,b}}. What is |Z|?

Lina20 [59]

$Z=\{a,c,\{a,b\}\}$

$\boxed{|Z|=3}$ (treat $\{a,b\}$ as one element of $Z$ )

The power set of $Z$ is

$\boxed{2^Z=\bigg\{\{\},\{a\},\{c\},\big\{\{a,b\}\big\},\{a,c\},\big\{a,\{a,b\}\big\},\big\{c,\{a,b\}\big\},\big\{a,c,\{a,b\}\big\}\bigg\}}$

1. $\{a,c\}\subseteq Z$ is true because both $a\in Z$ and $c\in Z$ .

2. $a\in Z$ is true.

3. $\{c\}\subseteq Z$ is true (same reason as part 1).

4. $\{c\}\in Z$ is false because $Z$ does not contain the set $\{c\}$ , rather just the element $c$ itself.

5. $b\in Z$ is false because the element $b$ on its own simply is not in $Z$ . That $b\in\{a,b\}$ does not mean $b\in Z$ , but that $b$ belongs to a subset of $Z$ .

6. $\{a,b\}\in Z$ is true.

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3 years ago

To budget 15% of his income to savings, how much more money ww ruta

aalyn [17]

Answer:

Step-by-step explanation:

7. 1250 - 1050 = 200 remaining. so $ 200 split evenly between savings and entertainment.....means each gets $ 100.

what percent of her monthly budget will go towards savings ?

100 / 1250 = 0.08 = 8% <==

==================

luke spent 300 of his 375...

what percent did he not use...

(375 - 300) / 375 = 75/375 = 0.2 = 20% was not used <==

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3 years ago