Dennis has to take a short multiple choice quiz that 4 questions and each question has 4 answer choices. What is the probability he gets all 4 questions incorrect?

Answer:

y = 2

Step-by-step explanation:

-13y + 33 = 7

add -13y to each side of the equation:

33 = 13y + 7

subtract 7 from each side:

13y = 26

divide both sides by 13:

y = 2

Answer:

A) 18°

Step-by-step explanation:

To find the measure of the indicated angle, we can use trigonometric ratios.

Looking at the triangle, we can see that we are given the lengths of the two legs of the triangle, but not the hypotenuse. Since we are not given the hypotenuse, the sine and cosine ratios would not work since both of them require the length of the hypotenuse. We can use the tangent ratio, since it only requires the lengths of the two legs. Remember:

[tex]tan(?)=\frac{opposite}{adjacent}[/tex]

From looking at the image, we can see that the length of the side opposite to the angle is 3, and the length of the side adjacent to the angle is 9. Thus, we can use 3 as out opposite and 9 as out adjacent:

[tex]tan(?)=\frac{3}{9}[/tex]

Now we solve for ?. Lets take the inverse tan of both sides to get rid of the tan on the left side:

[tex]?=tan^{-1}(\frac{3}{9})[/tex]

And we get:

? ≈ 18.4349488° ≈ 18°

So the answer would be 18°, or A.

I hope you find my answer to be helpful. Happy studying.

Answer:

234

Step-by-step explanation:

Let the digit in the hundreds place be a, the digit in the tens place be b and the digit in the ones place be c. So a b c is the number.

(Based on the question) a + b + c = 9 ----- Equation 1

From Equation 1, you can get:

2a + 2b + 2c = 18 ----- Equation 2

(Based on the question) 2b = a + c ------ Equation 3

(Based on the question) 2a = c ----- Equation 4

Replace the c in Equation 3 with Equation 4:

2b = a + 2a

Evaluate.

2b = 3a ----- Equation 5

Replace all the values of b and c with Equations 4 and 5 respectively into Equation 1 (Check underlined Equations to realise that all terms equal to a term in a):

2a + 3a + 2(2a) = 18

Evaluate.

2a + 3a + 4a = 18

9a = 18

Find a.

a = 18 ÷ 9

a = 2

Based on Equation 4, find c.

c = 2 × 2

c = 4

Based on Equation 1, find b.

b = 9 - 2 - 4

b = 3

Piecing together the values of a, b and c, the number is 234.

Answer:

C.

Step-by-step explanation:

Radius = 16 ÷ 2 = 8

[tex]\frac{45}{360} *8^2*\pi =25.1[/tex] (3sf)

You can first find the total area of the circle which is [tex]64\pi[/tex].

Then, you can find the area of the slice of the pizza, if you take the ratio of the angle it creates with the total angle of a circle (360.)

For example, a semicircle's are would be  [tex]\frac{180}{360} *8*\pi[/tex].

Answer:

C. 25.1 in²

Step-by-step explanation:

Hope this helps

Answer:

5 feet

Step-by-step explanation:

15/3 = 5

Answer:

n = (7/3)t

Step-by-step explanation:

Represente the unknown number by n.  Then write the statement symbolically, as:

(3/7)n = t

and then solve the above equation for n by multiplying both sides by (7/3):

n = (7/3)t

Answer:

which transformation. ??

i think you didnt put a screenshot or sum

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:89

Step-by-step explanation:

the equation is a^2+ B^2= c^2

8^2+ 5^2= X^2

64+25= X^2

89= X^2

The value of x is 9.4 units in the given right triangle, which is determined by   Pythagoras's theorem.

Pythagoras's theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

The triangle is given in the form of a right-angled triangle

According to Pythagoras's theorem,

The formula is a² + b² = c²

Here a = 8, b = 5, and c = x

Substitute the values in the above formula,

⇒ 8² + 5² =  x²

⇒ 64 + 25 = x²

⇒ 89 = x²

⇒ x² = 89

⇒ x = √89

⇒ x = 9.433

Rounded nearest tenth

⇒ x = 9.4

Therefore, the value of x is 9.4 units in the given right triangle.

Learn more about Pythagoras's theorem here:

brainly.com/question/343682

#SPJ2

Answer:

1/5 ; 7/10

Step-by-step explanation:

1) We have 10 letters, G and B are two letters, so the answer is 2/10, that can be simplify in 1/5

2) we have 7 parts black or white. The total parts are 10, so the answer is 7/10

Answer:

1. 68

2. 22

3. 9

4. 7

Step-by-step explanation:

hahsidijdkejeje

Answer:

4p = 19

p = 4.75

Step-by-step explanation:

p = cost for one pint of paint

Answer:

A.. ....... . . ..........

Answer: 8

Step-by-step explanation:

80 is in the tens place. second digit left of decimal

Answer:

8

Step-by-step explanation:

80 is in the tens place. second digit left of decimal

Answer: 2.38

Step-by-step explanation:

Okay so first you add up all the mileage from Monday-Wednesday. After you do that, subtract that number from 12.81 which will give you your answer

Hope this helps :)

Answer:$262.50

Step-by-step explanation:3500x.075=262.5

Answer:

40,320 different ways

Step-by-step explanation:

Here, we want to arrange 8 flags in a row

In the row, there will be 8 places

The first place has 8 flags to be chosen from

The second place has 7 and like that

So mathematically, the number of ways that we can arrange the flags is 8 factorial ways

We have this as:

8! = 40,320 different ways

Answer:

(-2,-4) is in quadrant 3

(-2,4) is in quadrant 2

(2,4) is in quadrant 1

(2,-4) is in quadrant 4

Step-by-step explanation:

Quadrant 1 is Positive, Positive

Quadrant 2 is Negative, Positive

Quadrant 3 is Negative, Negative

Quadrant 4 is Positive, Negative

Step-by-step explanation:

(-2,-4) in 3rd Quadrant

(-2,4) in 2nd Quadrant

(2,4) in 1st Quadrant

(2, -4) in 4th Quadrant

-TheUnknownScientist

Answer:

12

Step-by-step explanation:

Answer:

3/50

Step-by-step explanation:

Slope m = y2-y1/x2-x1

From the coordinate

x1 = 2/5, y1 = 2/3, x2 = -4/9 and y2 = 3/5

Substitute;

m = (3/5 - 2/3)/-4/9-2/3

m = (9-10/15)/(-4-6/9)

m = -1/15/-10/9

m = -1/15 * -9/10

m = 9/150

m = 3/50

Hence the slope of the line passing through the points is 3/50

Answer:

sorry i am trying but i don't know what to do

Step-by-step explanation:

Answer:

The answer is 10.4 :)

Step-by-step explanation:

125 + 5 x 10.4 will give you your 180 degree angle, therefore 10.4 should be the correct answer! Hope I could help <3

Answer:

5

Step-by-step explanation:

5*5=25

Answer:

The square root of 25 is 5, -5

Step-by-step explanation:

Answer:

Many human activities can be unintentionally harmful to biological crusts. The biocrusts are no match for the compressional stress caused by footprints of livestock or people or the tracks

Step-by-step explanation:

Answer:

SA = 894 cm²

Step-by-step explanation:

SA = (2 x 15 x 9) + (2 x 13 x 9) + (2 x 15 x 13) = 270 + 234 + 390 = 894 cm²

Answer:

894 cm²

Step-by-step explanation:

[tex]A=2(wl+hl+hw)\\=2(13*15+9*15+9*13)\\=894[/tex]

Answer:

i think c and e since it will end with a negative value