Can someone please help me thank you! will mark brainliest!

Answer:

-60

Step-by-step explanation:

-42+3*-6

-42-18

-60

Answer:

0.48

0.52

No

Yes

Step-by-step explanation:

Result of experiment :

Point up = 48

Point down = 52

Total number of trials = 100

Recall :

Experimental probability = number of outcomes / number of trials

1.)

P(Landing point up) = 48 / 100 = 0.48

2.)

P(Landing point down) = 52 / 100 = 0.52

3.)

The same result will not occur has the outcomes of trials aren't fixed.

4.) Yes, nearly the same result could occur on the second trial, as the number of possible outcubes are just 2 and the number if trials is high.

Answer:

Step-by-step explanation:

To begin, get everything but the x terms on one side of the equation by subtracting the 62. That gives us

[tex]x^2+16x=-55[/tex]

Next, take half the linear term, square it, and add it to both sides. Our linear term is 16. Half of 16 is 8, and 8 squared is 6, so add 64 to both sides:

[tex]x^2+16x+64=9[/tex]

The reason we do this is to get a perfect square binomial on the left, which looks like this:

[tex](x+8)^2=9[/tex]. Undo the squaring on the left by taking the square root of both sides. Doing this leaves x + 8 on the left, but + or - 3 on the right:

x + 8 = 3 and x + 8 = -3. Solving each of these equations gives you your 2 solutions:

x = -5 and x = -11

Answer:

y= -1/3(x) + 8

Step-by-step explanation:

slope of the 1st line = 3

slope of the line perpendicular to the first is its opposite reciprocal, so

slope of the 2nd line = -1/3

now we have a point and the slope of the perpendicular line, so we use the point slope formula to get:

y-7=-1/3(x-3)

y= -1/3(x) + 1 + 7

y= -1/3(x) + 8

Answer:

1.) 113 degrees and 2.) 67 degrees

Step-by-step explanation:

(x + 33) + (x - 13) = 180

Add like terms:

2x + 20 = 180

2x = 160

x = 80

x + 33 =

80 + 33 =

113 =

x - 13 =

80 - 13 =

67 =

Answer:

The minimum sample size needed is [tex]n = (\frac{1.96\sqrt{\sigma}}{4})^2[/tex]. If n is a decimal number, it is rounded up to the next integer. [tex]\sigma[/tex] is the standard deviation of the population.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.9}{2} = 0.05[/tex]

Now, we have to find z in the Z-table as such z has a p-value of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.05 = 0.95[/tex], so Z = 1.645.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

How large a sample must she select if she desires to be 90% confident that her estimate is within 4 ounces of the true mean?

A sample of n is needed, and n is found when M = 4. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]4 = 1.96\frac{\sigma}{\sqrt{n}}[/tex]

[tex]4\sqrt{n} = 1.96\sqrt{\sigma}[/tex]

[tex]\sqrt{n} = \frac{1.96\sqrt{\sigma}}{4}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{\sigma}}{4})^2[/tex]

[tex]n = (\frac{1.96\sqrt{\sigma}}{4})^2[/tex]

The minimum sample size needed is [tex]n = (\frac{1.96\sqrt{\sigma}}{4})^2[/tex]. If n is a decimal number, it is rounded up to the next integer. [tex]\sigma[/tex] is the standard deviation of the population.

Answer:

x= 2, y= 8

Step-by-step explanation:

y= 3x +2 -----(1)

y= -2x +12 -----(2)

Substitute (1) into (2):

3x +2= -2x +12

Move x terms to 1 side, constant to the other:

3x +2x= 12 -2

Simplify:

5x= 10

Divide both sides by 5:

x= 10 ÷5

x= 2

Substitute x=2 into (1):

y= 3(2) +2

y= 6 +2

y= 8

Answer:

[tex]11, 13, 15[/tex]

B) 6x + 16 = 82

Note: I just kept my wrong approach.

Step-by-step explanation:

Let first define an odd integer.

Considering [tex]x\in\mathbb{Z}: 2k+1[/tex], [tex]x[/tex] is an odd integer.

Now, three consecutive odd integers are [tex]a_1 = 2k+1[/tex] , [tex]a_2 = 2k+3[/tex] and [tex]a_3 = 2k+5[/tex]

The sum of the​ first, two times the second and three times the third can be written as

[tex]a_1 + 2a_2 + 3a_3 = 2k+1 + 2(2k+3)+3(2k+5)[/tex]

Expanding and simplifying

[tex]2k+1 + 2(2k+3)+3(2k+5) = 2k+1 +4k+6+6k+15 = 12k+22[/tex]

This is what I have done initially, but considering [tex]x[/tex] to be an odd integer, three consecutive integers can be written as

[tex]x, x+2, x+4[/tex] such that [tex]x\in\mathbb{Z}: 2k+1[/tex]

Therefore,

[tex]x+2(x+2)+3(x+4)=82 \implies x+2x+4+3x+12 = 82 \implies 6x+16 = 82[/tex]

and [tex]6x+16 = 82 \implies 6x = 66 \implies x = 11[/tex]

The three consecutive odd integers such that the sum of the​ first, two times the second and three times the third is 82 are [tex]11, 13, 15[/tex]

Answer

Step-by-step explanation:

Replace x and y

[tex](3 \: \: \: 25)[/tex]

[tex]y = 6x + 7 \\ 25 = 6 \times 3 + 7 \\ 25 = 18 + 7 \\ 25 = 25[/tex]

So, the point (3,25) lie on the line y=6x+7

hope this helps you.

Have a nice day!

Answer:

There's is a 25% chance on having all 6 births be girls. There is a 50-50 chance of a boy nor a girl. However, it is possible.

The probability of having 6 ​girls will be 1/64.

Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.

In a family with 6 ​children, excluding multiple​ births.

Then the probability of having 6 ​girls will be

Leaving out the third gender, let's suppose that there is an equal chance of having a girl or a boy.

Any child can be either a boy or a girl, with each having equal probability of = 1/2

Each of these blank spaces can be filled in 2 ways : B and G (denoting 'B' and 'G' respectively)

Probability of first blank being a ''G' is = 1/2

and second blanks too being a “G” is = 1/2

Thus, probability of each blank individually being a “G” = 1/2

Thus, probability of all being a “G” = (1/2) (1/2)  (1/2) (1/2) (1/2)* (1/2) = (1/2)6 = 1/64

Thus, probability of 6 children being all 6 girls = 1/64

More about the probability link is given below.

https://brainly.com/question/795909

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Answer:

n=13

Step-by-step explanation:

the equation 8 is 5 less than a number n

n-5=8

n=?

n=8+5

=13

n=13

Answer:

13

Step-by-step explanation:

the equation 8 is 5 less than a number n

n-5=8

n=?

n=5+8

=13

Answer:

90ft²

Step-by-step explanation:

Figure shown is a triangle

Area of a triangle = ( base length times height ) divided by 2

The triangle has a given height of 12 ft and a given base length of 15 ft

Hence area = ( 12 * 15 ) / 2

12 * 15 = 180

180 / 2 = 90

area = 90ft²

Answer:

Area is 90 degrees.

Step-by-step explanation:

The formula for the area of a triangle is (h*b)/2=A

We know height is 12.

We know base is 15.

So lets plug these in:

(12*15)/2=A

180/2=A

90=A

So 90 is our answer!

Hope this helps!

Answer:

(x+2)(x-4)(x-3)

(x²-4x+2x-2)(x-3)

(x²-2x-2)(x-3)

=x³-5x²-2x+24

So the answer true

Answer:

(8,6)

Step-by-step explanation:

See image below:)

FYI you can use the app photo math you just take a pic of the problem and it gives you the answer and explains the steps and it is free:)

Answer:

r≈4.5 ft

Step-by-step explanation:

r≈4.5 ft

\text{Volume of a Sphere:}

Volume of a Sphere:

V=\frac{4}{3}\pi r^3

V=

3

4

​

πr

3

384=

384=

\,\,\left(\frac{4}{3}\pi\right) r^3

(

3

4

​

π)r

3

384=

384=

\,\,(4.1887902)r^3

(4.1887902)r

3

Evaluate 4/3pi in calc

\frac{384}{4.1887902}=

4.1887902

384

​

=

\,\,\frac{(4.1887902)r^3}{4.1887902}

4.1887902

(4.1887902)r

3

​

Evaluate \frac{4}{3}\pi

3

4

​

π in calc

91.6732472=

91.6732472=

\,\,r^3

r

3

\sqrt[3]{91.6732472}=

3

91.6732472

​

=

\,\,\sqrt[3]{r^3}

3

r

3

​

Cube root both sides

4.5090066=

4.5090066=

\,\,r

r

\text{Final Answer:}

Final Answer:

r\approx 4.5\text{ ft}

r≈4.5 ft

Round to nearest tenth

The radius of the sphere is approximately 4.2 feet.

To find the volume of a specific sphere, we need to know its radius. Once we have the radius, we can plug it into the formula and calculate the volume.

The formula for the volume of a sphere is:

V = (4/3) x π x r^3

where V is the volume of the sphere, r is its radius, and π is a mathematical constant approximately equal to 3.14.

We are given the volume of the sphere, so we can plug it into the formula and solve for the radius:

384 = (4/3)  x π  x r^3

Dividing both sides by (4/3) x π, we get:

r³ = 384 / ((4/3) x π)

r³ = 72.825

Taking the cube root of both sides, we get:

r ≈ 4.243

The radius of the sphere is approximately 4.2 feet.

To know more about volume follow

https://brainly.com/question/29091596

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Answer:

3x-2y > 6

Step-by-step explanation:

3x-2y > 6

see attached figure.

Answer:

B.     1.8 x 10⁴

Step-by-step explanation:

6.3 / 3.5 = 1.8

10⁷/ 10³ = 10⁴

Therefor

6.3 x 10⁷ / 3.5 x 10³ = 1.8 x 10⁴

Answer:

Hope it is helpful to you ☺️

Answer:

You multiply the probabilities together.  The probability of rolling an odd number is 1/2 (because half of the numbers on a number cube are odd).  The probability of rolling a number greater than 1 is 5/6 because 5 of the 6 numbers are greater than 1.  Then multiply those two fractions together to get your answer.

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

3:1 x 3 = 9:3

3:1 x 5 = 15:5

Answer:

$38,025.04

Step-by-step explanation:

First, convert R as a percent to r as a decimal

r = R/100

r = 8.4/100

r = 0.084 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 1,200.00(1 + 0.084/2)(2)(42)

A = 1,200.00(1 + 0.042)(84)

A = $38,025.04

Answer:

the third option

4, 2.75, 1.5, 0.25, -1, -2.25, ...

Step-by-step explanation:

the first value in the sequence is 4.

that eliminates already answer options 1 and 2.

and the values are going down, as we continuously subtract 1.25 from the previous sequence number.

but answer option 4 shows a sequence, where the values go up.

so, only option 3 remains and is correct

4-1.25 = 2.75

2.75-1.25 = 1.5

1.5-1.25 = 0.25

0.25-1.25 = -1

...

Answer:

This is the answer

Step-by-step explanation:

This is the solution, hope it helps

Answer:

ans: 2 terms

Step-by-step explanation:

1st term: -3p^9

2nd term: -7p

Answer:

33.1

Step-by-step explanation:

cos(65)=14/x

x=33.1

Answer:

OK but first follow me .plz........

Answer: 7m⁴n²

Step-by-step explanation:

Find the GCF of 21m⁵n² and 28m⁴n².

Find the prime factors of each term in order to find the greatest common factor (GCF).

21m⁵n² = 7 · 3 · m · m · m · m · m · n · n

28m⁴n² = 7 · 2 · 2 · m · m · m · m · n · n

The product of these common prime factors will be  the Greatest Common Factor: 7 · m · m · m · m · n · n = 7m⁴n²

Answer:

Here are the aswers

Step-by-step explanation:

jackson=618

leslie=587

I hope this helps?!?