Find the sum, number 8 pleaseeee

Answer:

7

Step-by-step explanation:

[tex]\mid-13\mid\:-\:\mid-6\mid[/tex]

7

Answer:

1/25

Step-by-step explanation:

2/10 for n

2/10 for d

2/10 times 2/10 equals 4/100

which simplifies to

The required probability is [tex]\dfrac{1}{25}[/tex]. So, option A is correct.

Important information:

The number of N's is 2 and the number of D's is 2.

Total number of letters is 10.

Probablity of getting 'N' in first place is [tex]\dfrac{2}{10}=\dfrac{1}{5}[/tex].

The first letter is replaced.

Probablity of getting 'D' in second place is [tex]\dfrac{2}{10}=\dfrac{1}{5}[/tex].

Now, the probability of selecting an 'N' first and a 'D' next is:

[tex]\dfrac{1}{5}\times \dfrac{1}{5}=\dfrac{1}{25}[/tex]

Therefore, the correct option is A.

Find out more about 'Probability' here:

https://brainly.com/question/12995031

Answer:

A, C

Step-by-step explanation:

In order to do this, you should multiply each fraction in the answer choices. Do this by multiplying the numerators together and then multiplying the denominators together. Then divide the numerator product with the denominator product

For example, with [tex]\frac{2}{5}[/tex] x [tex]\frac{6}{7}[/tex] multiply 2 and 6 to get 12. Then multiply 5 and 7 to get 35. Then, divide 12 and 35 to get 12/35

Answer:

A and C.

hope this helps

Answer:

a) pyramid / prism

b)cuboid / rectangle

Step-by-step explanation:

The first shape is a triangular prism. And the second shape is a rectangular prism.

A closed solid with two parallel rectangular bases joined by a rectangle surface is known as a rectangular prism.

If the base of the prism is a triangle, then the prism is known as a triangular prism.

a) There are three rectangles and two triangles, then the shape will be a triangular prism.

b) There are four rectangles and two rectangles, then the shape will be a rectangular prism.

More about the rectangular prism link is given below.

https://brainly.com/question/12649592

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Answer:

2x + 6 = x -4

Step-by-step explanation:

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

multiply 2 by x and 3 to get them out of the parentheses

2*x = 2x   2 * 3 = 6

2x + 6 = x -4

here is a little help so you can go on

Answer:

[tex]\text{a) } 2(x + 3) = x -4[/tex]

[tex]2x+6= x -4[/tex]

[tex]2x+6-6= x -4-6[/tex]

[tex]2x= x -10[/tex]

[tex]2x-x= x -x-10[/tex]

[tex]x=-10[/tex]

[tex]\text{b) } 4(5x - 2) = 2(9x + 3)[/tex]

[tex]20x - 8 = 18x+ 6[/tex]

[tex]20x - 8+8 = 18x+ 6+8[/tex]

[tex]20x = 18x+ 14[/tex]

[tex]20x-18x = 18x-18x+ 14[/tex]

[tex]2x = 14[/tex]

[tex]$\frac{2x}{2} =\frac{14}{2} $[/tex]

[tex]x=7[/tex]

Answer:

Δ OPQ ≅ Δ TSU

Step-by-step explanation:

Imagine if these two triangles were to line with one another, so that the lengths of sides QP, and US match knowing that they have similar lengths;

∠ O corresponds to that of ⇒ ∠T, provided they are each right angles,

∠ P corresponds to ⇒ ∠S, knowing that they share common side with length of 25 km so that they match,

Consecutively ∠Q  corresponds to ⇒ ∠U, for a similar reason,

Solution; Thus we can conclude that Δ OPQ ≅ Δ TSU

Answer:

(C)

Step-by-step explanation:

√8 × √5

= 2√2 × √5

= 2√10

The equivalent expression of √8*√5  is 2√10

The expression is given as:

√8*√5

Evaluate the product

√8*√5  = √40

Express 40 as 4 * 10

√8*√5  = √4 * 10

Take the square root of 4

√8*√5  = 2√10

Hence, the equivalent expression of √8*√5  is 2√10

Read more about equivalent expression at:

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Hello

I think I know the answer:

D

Please mark my answer and comment so I can figure out what was wrong.

Cheers, Jake

Answer:

The approximate solution to both systems is y = 17.03256 & x = - 10.074

Step-by-step explanation:

Because we have 2 equations we can simply graph each of them simultaneously and find the answer.

First we are going to graph y = - 0.44x + 12.6

Now.. We are going to graph y = - 7.21x - 55.6

Now that we have graphed both of our functions we know that the locations where the two lines meet otherwise known as the intersect is the solution to the equation.

Now that we know coordinate of x at the intersection point of the two lines is: - 10.074, we can input this number in as a substitute for our x because x = - 10.074

Therefor to verify,

y = - 0.44(-10.074) + 12.6

y = 17.03256

and now we substitute y into the other equation and find for x...

17.03256 = - 7.21x - 55.6

x = - 10.074

l'm not sure you need ask google l think so

Answer:

20%

Step-by-step explanation:

Answer:

320 ft²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (a + b)

where h is the perpendicular height and a, b are the parallel bases

Here h = 16, a = 18 and b = 12 , thus

A = [tex]\frac{1}{2}[/tex] × 16 × (18 + 12) = 8 × 40 = 320 ft²

Answer: 10 weeks

Step-by-step explanation:

Cos of television = 1008.30

Savings = 200.80

Balance = 1008.30 - 200.80 = 807.50

She needs to work 807.50/80.75 = 10 weeks

Answer:

5. A= pi [tex]r^{2}[/tex]                             r=radius              d=diameter

   C= pi 2r/ d

   A= pi [tex]6^{2}[/tex]

   A= 36pi

_____________________

    C=pi 2(6)/12

    C=12pi

____________________________________________________________

6. A=pi [tex]4^{2}[/tex]

   A=16pi

_____________________

  C=pi 2(4)/8

   C=8pi

____________________________________________________________

Sorry I couldn't find the symbol for pi

Answer:

area of parellogtam=base *height

Step-by-step explanation:

15*21=315

Answer:

170

Step-by-step explanation:

2{5[7+4(8) -22]}

2{5[7+32 - 22]}

2{5[39 - 22]}

2{5[17]}

2{85}

170

The correlation coefficient of the points is 0.978

The points are given as:

(1, 1), (2, 5), (4, 7), (5, 12), and (7, 15)

Next, we calculate the correlation coefficient using a graphing calculator

From the graphing calculator, we have the following calculation summary

X Values

Y Values

X and Y Combined

R Calculation

The above means that the correlation coefficient is 0.978

Read more about correlation coefficient at:

https://brainly.com/question/11811889

Answer: 2, 3, square root 13

Step-by-step explanation:

Use the Pythagorean Theorem (a^2 + b^2 = c^2)

2^2 = 4

3^2 = 9

4 + 9 = 13

Square root of 13 is c

Answer:

2,3,[tex]\sqrt{13}[/tex]

Step-by-step explanation:

The first choice:

2, 3, [tex]\sqrt{13}[/tex]

Pythagorean theorem states that for a right-triangle of sides a,b and c where c is the hypotenuse; a² + b² = c²

So the hypotunese has to be the longest side of all.

The longest side in this case is [tex]\sqrt{13}[/tex]

So, 2² + 3² must be equal to ([tex]\sqrt{13}[/tex])²

Let's check if its true ...

2² + 3² = ([tex]\sqrt{13}[/tex])²

4 + 9 = 13

13 = 13

Right! Sides 2, 3, [tex]\sqrt{13}[/tex] are sides of a right triangle.

Answer:

12% 4% 8%

Step-by-step explanation:

Answer:

4/23

Step-by-step explanation:

there are 8 oatmeal cookies out of the 24 in the jar so the probability of pulling an oatmeal cookie out is 8/24 = 1/3

Then we have 23 cookies in the jar and 12 are chocolate chip

1/3 * 12/23 = 4/23

Answer:

16384

Step-by-step explanation:

Day 1=16

Day 6=32

Day 12=64

Day 18=128

Day 24=256

Day 30=512

Day 36=1024

Day 42=2048

Day 48=4096

Day 54=8192

Day 60=16384

Answer:

two real roots

Step-by-step explanation:

y = -2x^2 + 9x - 7

This is in the form

ax^2 +bx+c

a = -2  b = 9  c = -7

The discriminant is

b^2 -4ac

(9)^2 - 4(-2) (-7)

81 - 56

25

Since the discriminant is greater than zero, there are two real roots

Answer:

x = 132

Step-by-step explanation:

In a parallelogram,adjacent angles add to 180

Opposite angles are equal

Answer:

132

Step-by-step explanation:

Obtuse angles. It's a parallelogram, not a triangle.

There is 0.25 is in the range of (0.18, 0.26), there is no statistical evidence that the program is not working as intended.

There is statistical evidence that the program makes the discount with a 0.25 probability.

The new margin of error is 0.02.

There is not statistical evidence that the program is working as intended.

Given that,

The program claims 22% of the receipts will get a discount in the long run.  

He selects a random sample and finds that 17% received the discount. The confidence interval is 0.17 ± 0.05 with all conditions for inference met.

According to the question,

The fact that 0.25 is in the range of (0.18, 0.26), there is no statistical evidence that the program is not working as intended.

The margin of error formula is z times the square rout of p-hat times 1 minus p hat over n.

From this formula  the me is inversely proportional to the square rout of the sample size. Because this is the case, the new me value is determined by dividing the old me value by 2 because of the fact that the proportion of p is 22%.

This means that the new me is equal to 0.04/2, which equals 0.02, which means that the new margin of error is 0.02.

This also equals(0 .22 - .02) ,(0 .22 - 0.02) or (0.2, 0.24) Because 0.25 is not within the range of (0.2, 0.24),

There is not statistical evidence that the program is working as intended.

To know about Margin formula click the link given below.

https://brainly.com/question/16576555

Answer:

$47.50

Step-by-step explanation:

530-150=380

380/8=47.50

Answer:

Arjun is 20 years old and Shreya is 10 years old.

Step-by-step explanation:

5 YEARS AGO-

Arjun: 2x-5

Shreya: x-5

NOW-

Arjun: 2x

Shreya: x

EQUATION-

2x-5=3(x-5) = 2x-5=3x-15

(add 15 on both sides)

2x+10=3x

(subract 2x from both sides)

x=10

Therefore, Arjun is 20 years old and Shreya is 10 years old :)

Answer:

I believe the answer is false.

I hope I helped, please correct me if I'm wrong!

Answer:

it would take 32 scoops

Step-by-step explanation: