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tekilochka [14]
2 years ago
14

Please help thank you soooo much

Mathematics
2 answers:
DIA [1.3K]2 years ago
7 0

Answer:

Question 5 - 30 seconds

Question 6 - 7.5

Step-by-step explanation:

For question 5, just check and think, if it was 1 min per block, it would take 10 mins not 5. Which leads to 30 seconds.

For question 6, All I did was multiply all the answers by 40 and then check which equals 300.

gayaneshka [121]2 years ago
3 0
2 minutes and $7.50 would be the answer please put me down as brainliest
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What is the value of x in the proportion x + 1 / x+3 = 15/ 21<br> a.4<br> b.1/3<br> c.1/4<br> d.3
lesantik [10]
<span>What is the value of x in the proportion x + 1 / x+3 = 15/ 21
a.4
b.1/3
c.1/4
d.3</span>
the answer is            
a.) 4
3 0
2 years ago
Read 2 more answers
Trevor thinks that left-handed pitchers in a baseball league are more likely to strike out batters than right-handed pitchers ar
Scilla [17]

Answer:

C. H0: PL - PR = 0

Ha: PL - PR > 0

The null hypothesis for this case is that left-handed pitchers in a baseball league are not more likely to strike out batters than right-handed pitchers are. That is the proportion of at-bats resulting in a strikeout is significantly equal for both left-handed and right-handed pitchers.

H0: PL - PR = 0

The alternative hypothesis is that the proportion of at-bats resulting in a strikeout is significantly higher for left-handed pitchers

Ha: PL - PR > 0

PL - proportion of at-bats resulting in a strikeout for left-handed pitchers

PR - proportion of at-bats resulting in a strikeout for right-handed pitchers

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

The null hypothesis for this case is that left-handed pitchers in a baseball league are not more likely to strike out batters than right-handed pitchers are. That is the proportion of at-bats resulting in a strikeout is significantly equal for both left-handed and right-handed pitchers.

H0: PL - PR = 0

The alternative hypothesis is that the proportion of at-bats resulting in a strikeout is significantly higher for left-handed pitchers

Ha: PL - PR > 0

PL - proportion of at-bats resulting in a strikeout for left-handed pitchers

PR - proportion of at-bats resulting in a strikeout for right-handed pitchers

8 0
3 years ago
Can you answer this for me?
zvonat [6]

Answer:

what

Step-by-step explanation:

there is no attachment

3 0
3 years ago
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0.91 divided by -0.13
den301095 [7]
0.91÷-0.13
=-7
hope this helps!
7 0
3 years ago
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Rearrange the equation so U is the independent variable. 4u+8w=−3u+2w
Basile [38]

Answer:

u=-\frac{6}{7} w

Step-by-step explanation:

4u+8w=-3u+2w

Add 3u and -8w on both sides.

4u+3u=2w-8w

Add or subtract like terms.

7u=-6w

Divide 7 on both sides.

7u/7=-6w/7

u=-\frac{6}{7} w

u  is the independent variable now.

8 0
3 years ago
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