what slope would make these lines parallel

Answer: D

Step-by-step explanation:

To express this number in scientific notation, we want to move the decimal so that it goes past the first nonzero integer. In this case, we would move it to the right 8 times.

6.7×10⁻⁸

The only reason why the 8 is negative is because when you write the scientific notation in standard form, you will need to move the decimal to the left in order to get 0.000000067. Negative means moving to the left. Therefore, 6.7×10⁻⁸ is our correct answer.

Answer:

Integer

Step-by-step explanation:

Integer :a number which is not a fraction; a whole number that can be Positive or negative

Hope this helps.. Good Luck

True.

Isometry is such transformation where the shape of observed body is not manipulated on itself but rather the position of it is manipulated.

Hope this helps.

Answer:

mark the other brainliest

Step-by-step explanation:

Answer:

  $85

Step-by-step explanation:

Let y represent Timmy's money after x weeks. If we assume that the only money Timmy has is what is mentioned in the problem statement, then ...

  y = 50 +5x . . . . . $50 initially plus $5 for each week

After 7 weeks, x = 7, so Timmy's fortune will be ...

  y = 50 +5(7) = 50 +35

  y = 85

Timmy will have $85 in 7 weeks.

Answer:

120

Step-by-step explanation:

we know if the arc measures 120, we know that its 1/3 of the circle, so ABC will also be 120

Answer:

[tex]n=\frac{0.0875(1-0.0875)}{(\frac{0.02}{1.96})^2}=766.82[/tex]  

And rounded up we have that n=767

Step-by-step explanation:

We know the following info:

[tex] n=160[/tex] represent the sample size selected

[tex] x= 14[/tex] represent the number of defectives in the sample

[tex]\hat p= \frac{14}{160}= 0.0875[/tex] represent the estimated proportion of defectives

[tex] ME = 0.02[/tex] represent the margin of error desired

The margin of error for the proportion interval is given by this formula:  

[tex] ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}[/tex]    (a)  

And on this case we have that [tex]ME =\pm 0.02[/tex] and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

[tex]n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}[/tex]   (b)  

The crtical value for a confidence level of 95% is [tex] z_{\alpha/2}=1.96[/tex]

And replacing into equation (b) the values from part a we got:

[tex]n=\frac{0.0875(1-0.0875)}{(\frac{0.02}{1.96})^2}=766.82[/tex]  

And rounded up we have that n=767

Answer:

[tex] {(6x+12) }^{2} \\

=36x^2+64x+144 [/tex]

Step-by-step explanation:

Thinked number

[tex]x[/tex]

Add 2

[tex]x + 2 \\ [/tex]

multiply it by 6

[tex]6(x+2) \\ [/tex]

square it

[tex] {(6x+12)}^{2} \\

= 36x^2+64x+144[/tex]

hope this helps

Answer:

36x^2 + 144x + 144

Step-by-step explanation:

Say the number youre think of is x

You do x + 2 as you're adding 2

Then you do x + 2 times 6 or 6 (x + 2) = 6x +12

6x + 12 squared = 36x ^ 2 + 144 x + 144

Answer:

The range is 2.1

Step-by-step explanation:

7.7, 8.4, 9, 8, 6.9

Put the numbers in order from smallest to largest

6.9,7.7, 8,8.4, 9

The range is the largest number minus the smallest number

9 - 6.9

2.1

Answer:

[tex]y = 5x-15[/tex]

Step-by-step explanation:

Parallel ⇒ So the slopes will definitely be equal

So,

Slope = m = 5

Now,

Point = (x,y) = (4,5)

So, x = 4, y = 5

Putting these in the slope intercept form to get b

[tex]y = mx +b \\[/tex]

5 = (5)(4) + b

5 = 20 + b

b = -20+5

b = -15

So, Putting m and b in the slope intercept form to get the required equation,

[tex]y = 5x-15[/tex]

Answer:

therefore the left work of worker will be 6/7 part of work

Answer: Option d.

Step-by-step explanation:

Ok, we have 3 urns.

Each urn can give a number between 0 and 9, so each urn has 10 options.

And as the urns are different, the outcome in the first urn does not affect the outcomes in the others, and the same happens for the outcome in the second urn, so the events are independent.

The total number of combinations is equal to the product of the number of options for each event (here each urn is one event)

then the number of combinations is:

C = 10*10*10 = 10^3 = 1000

Then the correct option is d.

Answer:

  9

Step-by-step explanation:

Sammy's rate of eating pizza is ...

  pizza/hour = (6/7)/(2/21) = (18/21)/(2/21) = 18/2 = 9

Sammy eats pizza at the rate of 9 pizzas in one hour.

_____

Comment on the question

Sammy may only eat 6/7 of a pizza in an hour, because he is no longer hungry after eating that much.

Answer:

Perpendicular lines are lines that intersect at a right (90 degrees) angle.

Step-by-step explanation:

Answer: 12

Step-by-step explanation: each side is 3, and there are 4 sides so 3*4=12

Answer:

The smallest sample size to satisfy the conditions is n=500.

Step-by-step explanation:

The condition for performing the inference related to the sample size is that, for all the categories, the expected success and failures in the sample are at least 10:

[tex]np\geq10\\\\n(1-p)\geq10[/tex]

The largest sample size required will be for the minimum p or (1-p).

This happens to be the proportion that can play other instruments: 2%.

Then, we can calculate the minimum sample size as:

[tex]np\geq10\\\\n(0.02)\geq10\\\\n\geq(10/0.02)\\\\n\geq500[/tex]

250

Remember there are 2 conditions to perform a goodness of fit chi-test:

Simple random sample: The data must come from a random sample or a randomized experiment.

Expected counts: All expected counts are at least five. You must state the expected counts.

To explain expected counts a bit better, imagine I surveyed 100 people about their ice cream preferences. Before beginning it is believed that 50% like chocolate, 47% like vanilla, and 3% like strawberry.

That means our expected counts are:

100(.50) = 50

100(.47) = 47

100(.03) = 3

This is a problem, because 3 < 5 and so we can not perform a goodness of fit chi-test.

So how do you find the minimum sample size? Use this formula:

sample size (n) * smallest proportion (p) = 5

In the context of ice cream:

n*.03 = 5

n = 5 / .03

n = 167 (because you can't interview 2/3s of a person)

In the context of the problem:

n* .02 = 5

n = 5 / 0.02

n = 250

This means we need to sample at least 250 people to meet our expected count condition.

Answer:

Step-by-step explanation:

Adding the two together 1212 + (99 - 1)

1310

1212/1310 = 606/655

Decimal: 0.9252

I'm always happy to help :)

Answer:

Step-by-step explanation:

[tex](x + y)0 \\ x = -3 \\y = 5\\(-3+5)0\\(2)0\\= 0[/tex]

Answer: 7000

Step-by-step explanation:

Let the amount invested in 8% account be P1 and the amount invested in 6% account be P2

. If the total amount invested is $20,000 then:

P1+P2=20,000. (Eq. 1)

The interest earned in one year from the 8% account is:

I1=0.08P1

and the interest earned in one year from the 6% account is:

I2=0.06P2

If the total interest earned is $1460, then:

I1+I2=1460

0.08P1+0.06P2=1460

(Eq. 2) From Eq. 1 :

P1=20000−P2

Substituting this into Eq. 2:

0.08 (20000−P2) + 0.06P2 = 1460

1600 − 0.08P2 + 0.06P2 = 1460

0.02P2 = 140

P2 = 140 / 0.02

P2 = 7000

Hence, he invested $7000 at the rate of 6%.

Answer:

i. is the better option.

Step-by-step explanation:

The probability first is a King = 4/52 = 1/13.

The probability second is a Queen = 4/51.

The probability first is a King and second is a Queen = 1/13 *4/51 =  4/663.

So there is a much betert chance  to bet just that the first one is a King

Answer:  solanka 6-procentowa=3 kg

solanka 9-procentowa = 6 kg

Step-by-step explanation:

Let solanka 6-procentowa=x kg

Let solanka 9-procentowa = y kg

So x+y=9  

=> x=9-y                           (1)

6%=0.06      9%=0.09    8%=0.08

So pure salt is 0.06*x +0.09*y= 9*0.08   (2)

Lets put 9-y instead x in (2)

0.06*(9-y) +0.09*y=0.72

0.54-0.06*y +0.09*y=0.72

0.03*y=0.18

y=6kg  =>  x=9-y => x=9-6=3 kg

Answer:

9 canvases

Step-by-step explanation:

To find the number of canvases Rogelio can buy, we just need to divide the value of the gift card by the value of each canvas. Then, if the result is decimal, we round down, because if we round up we will not have enough money to buy them all.

So we have that:

Number of canvases = 100 / 10.99

Number of canvases = 9.099

Rounding down, we can buy 9 canvases

Answer:

3^5

Step-by-step explanation:

becuase 3*3*3*3*3

Answer: 3^5 (3 to the power of 5)

Step-by-step explanation:

3 is multiplied by itself 5 times

To shorten the expression, exponential notation is used and it becomes 3^5, which essentially means three multiplied by itself 5 times

ex. 4^3 equals 4x4x4

Answer:

[tex]\boxed{\sf \ \ \ age = 16 \ \ \ }[/tex]

Step-by-step explanation:

Hello,

as the mean age of 5 people is 40

it means that the sum of the 5 ages is 40*5=200

now a person enters the room, let's note x his age

the new mean is

[tex]\dfrac{200+x}{6}=36[/tex]

[tex]<=>200+x=6*36=216\\<=> x = 216-200=16\\[/tex]

So the age of the new person is 16

hope this helps

Answer:

Minimum 08 adults / drivers

Maximum 10 adults / drivers

Step-by-step explanation:

Total students are 30

Each car can take total 5 incl. drive

There needs to be 7 cars taking the 30 students, which also means there have to be minimum 7 drivers / adults.

Min. passengers = 30 + 7

Of course, there will be space for 3 more in the 8th car since 5 x 8 = 40

Answer:

dependent and 1.26

Step-by-step explanation:

These two individual events are dependent on each other as first they draw it and then instant they eat two red candy pieces

Now the probability of the combined event is as follows

P(Probability of combined event)  is

[tex]= P(Event 1) \times P \frac{Event 2}{Event 1}[/tex]

[tex]= \frac{55}{49} \times \frac{54}{48}[/tex]

[tex]= 1.122 \times 1.125[/tex]

= 1.26

We simply applied the above formula so that we can get the dependency or independency plus the probability of the combined event

Answer: independent & .057

Step-by-step explanation:

Answer:

Option D

Step-by-step explanation:

I think the most effective sample to this setting would be to

Divide the city into neighborhoods. Randomly sample 10 neighborhoods. And then randomly sample 20 households from those neighborhoods.

The city is first divided into the various distinct and unique neighbourhoods, then randomly sample 10 neighborhood such that this sample is a representation of the many distinct and unique neighborhoods, which include some with large homes, some with only apartments, and others a diverse mixture of housing structures.

Then from each neighborhood, take a random sample of 20 households.

This way, your sample are a representation of the population.

Answer:

The like terms are: [tex]a^{2}b,\ ab,\ \teaxt{and}\ a[/tex]

Step-by-step explanation:

The expression is:

[tex]-a^{2}b+6ab-8+5a^{2}b-6a-b-a^{2}b-6a-a^{2}b+5a^{2}b+6ab+5a^{2}b+6ab-6a[/tex]

Collect the like terms as follows:

[tex]-a^{2}b+6ab-8+5a^{2}b-6a-b-a^{2}b-6a-a^{2}b+5a^{2}b+6ab+5a^{2}b+6ab-6a[/tex]

[tex]=(-a^{2}b+5a^{2}b-a^{2}b-a^{2}b+5a^{2}b+5a^{2}b)+(6ab+6ab+6ab)-(6a-6a-6a)-b-8[/tex]

[tex]=12a^{2}b+18ab+18a-b-8[/tex]

Thus, the final expression is [tex]12a^{2}b+18ab+18a-b-8[/tex]

The like terms are: [tex]a^{2}b,\ ab,\ \teaxt{and}\ a[/tex].

Answer:

The CORRECT answer is B

Step-by-step explanation:

Answer:

[tex]n=3\sqrt{2}[/tex]

Step-by-step explanation:

[tex]2n=1\times \left(3\sqrt{2}\right)\times \:2[/tex]

[tex]2n=2 \times 3\sqrt{2}[/tex]

[tex]2n=6\sqrt{2}[/tex]

[tex]\frac{2n}{2}=\frac{6\sqrt{2}}{2}[/tex]

[tex]n=3\sqrt{2}[/tex]

Answer:

n = 3√2

Step-by-step explanation:

=> [tex]1(3\sqrt{2} )2 = 2n\\6\sqrt{2} = 2n\\[/tex]

Dividing both sides by 2, we'll get

=> [tex]\frac{6\sqrt{2} }{2} = \frac{2n}{2}[/tex]

So,

=> n = [tex]3\sqrt{2}[/tex]

Answer:

I want to say 9 but im preety sure it's 6

Step-by-step explanation:

you have 54 times to pick it

you have 9 marbles,

54 divided by 9= 6

answer is 6

hope this helped:))))

have a grate dayy

Answer:

1

this is because I see only one marble present which is orange

Answer: Cosec(A) = 3.64

Step-by-step explanation:

Ok, tenemos un triangulo rectángulo.

Sabemos que B = 90° y que  

tg(C) = 3.5

entonces:

Atg(Tg(C)) = C = Atg(3.5) = 74.05°.

Nosotros también sabemos que la suma de todos los ángulos interiores de un triangulo es igual que 180°

entonces:

A + B + C = 180°

A + 90° + 74.05° = 180°

A = 180° - 90° - 74.05° = 15.95°

Entonces Cosec(A) = Cosec(15.95°) = 1/sin(15.95°) = 3.64