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3 years ago

Helppppppppppp pleaseeeeeee

Mathematics

2 answers:

Harrizon [31]3 years ago

6 0

Answer:

3 1/2 miles each practice

Step-by-step explanation:

sp2606 [1]3 years ago

3 0

Answer:

3 1/2

Step-by-step explanation:

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Which expressions are equivalent to -6(b+2)+8−6(b+2)+8minus, 6, left parenthesis, b, plus, 2, right parenthesis, plus, 8 ? Choos

leva [86]

Answer:

B. $-6b-4$

Step-by-step explanation:

Given expression is $-6(b+2)+8$

Simplifying the expression now

Lets use distributive property of multiplication to solve it.

As given, $-6(b+2)+8$

Distributing -6 with b and 2.

= $(-6b-12)+8$

Opening the parenthesis

= $-6b-12+8$

= $-6b-4$

∴ As from the given options, $-6b-4$ is the correct choice.

5 0

2 years ago

2 y - 8 / 3 equals a + 3 B / 4 solving for y

zhuklara [117]

-2x+5
I am pretty sure

4 0

3 years ago

Laura walked 612 laps of a circular path in 2 hours. At that rate, how many laps of the path did she walk in one hour?

kari74 [83]

Answer:

306 laps

Step-by-step explanation:

If Laura walked 612 laps in 2 hours then if you divide 2 by 2 then it will give you 1, which is 1 hour. This means that if you divide 612 by 2, it should give you the answer of 306, the amount of laps in 1 hour. I hope this helps!

8 0

3 years ago

A simple random sample of size n equals 200 individuals who are currently employed is asked if they work at home at least once p

____ [38]

Answer: 99% of confidence interval for the population proportion of employed individuals who work at home at-least once per week

//0.20113,0.20887[/tex]

Step-by-step explanation:

step 1:-

Given sample size n=200

of the 200 employed individuals surveyed 41 responded that they did work at home at least once per week

Population proportion of employed individuals who work at home at least once per week P = $\frac{x}{n} =\frac{41}{200} =0.205$

Q=1-P= 1-0.205 = 0.705

step 2:-

Now $\sqrt{\frac{P Q}{n} } =\sqrt{\frac{(0.205)(0.705)}{200} }$

=0.0015

step 3:-

Confidence intervals

using formula

$(P - Z_∝} \sqrt{\frac{P Q}{n},} (P + Z_∝} \sqrt{\frac{P Q}{n},$

$(0.205-2.58(0.0015),0.205+2.58(0.0015)\\0.20113,0.20887$

=0.20113,0.20887[/tex]

conclusion:-

99% of confidence interval for the population proportion of employed individuals who work at home at-least once per week

//0.20113,0.20887[/tex]

4 0

3 years ago

Write the following equation in standard form: y + 4 = -3(x + 2)

Irina18 [472]

Answer:

-3x-y=10

Step-by-step explanation:

y+4=-3(x+2)

y+4=-3x-6

y=-3x-6-4

y=-3x-10

-3x-y=10

5 0

3 years ago