A:45
B:60
C:90
D:180

Answer:

False

Step-by-step explanation:

Answer:4000

Step-by-step explanation:40 times 100 is 4000

Answer:

A).

Step-by-step explanation:

Add 3 to the x values and subtract 1 from the y's.

For example  A ( -5, 1 ) ---->  (-5+3, 1 -1 ) ---> (-2, 0).

Answer:

A=5

Step-by-step explanation:frac{15s}{15}=frac{75}{15}

divide both sides by 15

Answer:

∠QRS = 35°

∠Q = 116°

Step-by-step explanation:

∠QRS and ∠QRT are supplementary angles

Supplementary angles add up to equal 180

Thus, 145° + ∠QRS = 180

180 - 145 = 35

145 - 145 cancels out

we're left with ∠QRS = 35°

In order to find the measure of ∠Q

We must find y

We have already identified that ∠QRS = 35°

Which means that we can find y by using the triangle angles rule which states that all angles in a triangle add up to equal 180

So 180 = y + 4y + 35

now we solve for y

step 1 combine like terms

y + 4y = 5y

we now have 180 = 5y + 35

step 2 subtract 35 from each side

180 - 35 = 145

35 - 35 cancels out

now we have 145 = 5y

step 3 divide each side by 5

5y / 5 = y

145 / 5 = 29

We're left with y = 29

Now we can find ∠Q

To do this we substitute y for 29

∠Q = 4(29)

4 * 29 = 116

Hence ∠Q = 116

Answer:

145=4y+y { exterior angle of triangle is equal to the sum of its opposite interior angle}

measure of / Q =4y =4×29=116°

measure of angleQRS

let unknown angle be'x'

hope it helps

Answer:

0.14

Step-by-step explanation:

0.14 is the probability that a person will retake their sexfie exactly 3 times.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Given

Total frequency = 27+29+18+14+12 = 100

frequency of 3 retakes = 14

p(r) = frequency of 3 retakes/ Total frequency

p(r) = 14/100 = 0.14

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Answer: The  maximum   value is   -3.75  

Note: -3.75 = -15/4

=============================================================

Explanation:

The given quadratic is in the form y = ax^2 + bx + c, where,

We'll plug the values of 'a' and b into the formula below

h = -b/(2a)

h = -1/(2(-1))

h = 1/2

h = 0.5

This represents the x coordinate of the vertex. Recall the vertex is (h,k).

Plug this x value into the function to find its corresponding y coordinate

y = -x^2 + x - 4

y = -(0.5)^2 + 0.5 - 4

y = -3.75

The vertex is located at (0.5, -3.75)

Since a < 0, this means the parabola opens downward and that the vertex is the highest point on the parabola. Therefore, the largest y can get is y = -3.75 which we consider the maximum.

The graph visually helps confirm this (see image attachment).

Side note: -3.75 = -15/4

-------------------

Here's another way we can find the vertex (h,k). We'll complete the square to get the function into vertex form

y = -x^2 + x - 4

y + 4 = -x^2 + x

y + 4 = -(x^2 - x)

y + 4 = -(x^2 - x + 0)

y + 4 = -(x^2 - x + 0.25 - 0.25) .... see note below

y + 4 = -(x^2 - x + 0.25) -(-0.25)

y + 4 = -(x^2 - x + 0.25) + 0.25

y + 4 = -(x - 0.5)^2 + 0.25

y = -(x - 0.5)^2 + 0.25 - 4

y = -(x - 0.5)^2 - 3.75

This is in the form y = a(x-h)^2 + k where (h,k) = (0.5, -3.75).

Note: The x coefficient is -1 which cuts in half to -0.5, then that squares to 0.25

Answer:

54 square ft

Step-by-step explanation:

Find missing sides:

8+6 = 14

9-6 = 3

Find area of full rectangle:

9×8 = 72

Find the area of the missing part of the full rectangle

3×6 = 18

Find the area of the actual shape:

72-18 = 54

Area = 54 square ft

Answer:

[tex]\cos(A) = \frac{60}{61}[/tex]

Step-by-step explanation:

Given

[tex]\tan(A) = \frac{11}{60}[/tex]

[tex]0 \le A \le 90[/tex] --- First Quadrant

Required

Find cos(A)

The tan of an angle is:

[tex]\tan(A) = \frac{Opposite}{Adjacent}[/tex]

and

[tex]\tan(A) = \frac{11}{60}[/tex]

By comparison:

[tex]Opposite = 11[/tex]

[tex]Adjacent = 60[/tex]

So, the hypotenuse is:

[tex]Hypotenuse^2 = Adjacent^2 + Opposite^2[/tex]

[tex]Hypotenuse^2 = 60^2 + 11^2[/tex]

[tex]Hypotenuse^2 = 3721[/tex]

Take square roots

[tex]Hypotenuse = \sqrt{3721[/tex]

[tex]Hypotenuse = 61[/tex]

The cosine of an angle is:

[tex]\cos(A) = \frac{Adjacent}{Hypotenuse}[/tex]

This gives:

[tex]\cos(A) = \frac{60}{61}[/tex]

Answer:

y=11

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

You use the equation 180(n-2) to find the interior angle and 360/n to find the exterior angle

360/12                           divide 360 by the number of sides

30

Answer:

C.

Step-by-step explanation:

Answer:

B. Tangent

Step-by-step explanation:

Tangent always makes 90 degree angle with the radius. Now in triangle let's see if it's right angled triangle or not.

To confirm if it's a right angled triangle it should follow Pythagoras Theorem.

Which states square of hypotenuse = sum of squares of other two legs

[tex]12 {}^{2} + 16 {}^{2} = 20 { }^{2} \\ 144 + 256 = 400 \\ 400 = 400[/tex]

it proves that it's a right angled triangle. Hence AB is a tangent to circle.

Yes, line AB is tangent to the circle.

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Since, Tangent always makes 90 degree angle with the radius.

Hence, in triangle we can see if it's right angled triangle or not.

Now, To confirm if it's a right angled triangle it should follow Pythagoras Theorem as;

12² + 16² = 20²

144 + 256 = 400

400 = 400

Which states square of hypotenuse = sum of squares of other two legs

it proves that it's a right angled triangle. Hence AB is a tangent to circle.

Hence, We can say that;

⇒ line AB is tangent to the circle.

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Answer:

The searchlight should be 6.25ft deep

Step-by-step explanation:

Given

[tex]Across = 20ft[/tex]

[tex]Base = 4ft[/tex]

Required

The depth of the searchlight

[tex]Across = 20ft[/tex] implies that the search light span 10 units to either side of the x-axis

[tex]Base = 4ft[/tex] implies that the search light span 4 units to the y-axis

The attached image illustrates the revolution.

From the attached image, the endpoints of the searchlight is:

[tex](x,y) = \{(-10,4), (10,4)\}[/tex]

The depth (a) of the search light is calculated using:

[tex]x^2 = 4ay[/tex]

Make a the subject

[tex]a = \frac{x^2}{4y}[/tex]

Substitute -10 or 10 for x and 4 for y

[tex]a = \frac{(-10)^2}{4*4}[/tex]

[tex]a = \frac{100}{16}[/tex]

[tex]a = 6.25ft[/tex]

Answer:

31.4

Step-by-step explanation:

Circumference= 2πr

So, 2x3.14x5 (since radius is half the diameter which is 10mm)

Answer is 31.4

Mark me brainliest pleaseee :))

Step-by-step explanation:

Total amount of cookies= 268

One bag can hold 8 cookies

268 / 8 = 33 (remainder 4)

He can make as many as 33 bags, and there are 4 cookies left over.

Answer:

100cubic inches

Step-by-step explanation:

varies inversely

pv = k

Find the constant of variation:

volume of 180 cubic inches under a pressure of 5 pounds

5 * 180 = k

k = 900

volume if the pressure is increased to 9 pounds per square inch?

9v = 900

divide both sides by 9

v = 100

Answer:

The answer is (6,-2)

Step-by-step explanation:

I just took the test :)

Answer:

C (6,-2)

Step-by-step explanation:

Answer:

the answer is 251/723

Step-by-step explanation:

just took the test and also its asking for the (midwest farmer vegetables) so youd look at midwest and find the vegetable row and it would be 251 then since its asking for only vegetables you'd go across the row and locate the total vegetables which is 723. THE A OPTION IS MISTYPED ITS 251/723.

The value of P(V|M) is 251/365.

The correct answer is option (D)

"Probability is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."

P(A) = n(A)/n(S)

where,  n(A) is the number of favorable outcomes,

n(S) is the total number of events in the sample space.

"It is the probability of an event occurring given that another event has already occurred."

The probability of event A occurring given that event B has already occurred is,

P(A|B) = P(A ∩ B)/P(B)

where, P(A ∩ B) the joint probability of events A and B

For given example,

n(S) = 1477

Event M = farmer lives in the Midwest

⇒ n(M) = 365

So, the probability of farmer lives in the Midwest would be,

⇒ P(M) = n(M)/n(S)

⇒ P(M) = 365/1477

And event V = farmer grows vegetables.

⇒ n(V) = 723

The probability of farmer grows vegetable would be,

⇒ P(V) = n(V)/n(S)

⇒ P(V) = 723/1477

The number of farmers who grows vegetables and lives in the Midwest are,

n(A ∩ B) = 251

So, the probability that the farmers grow vegetables and live in the Midwest would,

⇒ P(M ∩ V) = n(A ∩ B)/n(S)

⇒ P(M ∩ V) = 251 / 1477

Now, we need to find P(V|M).

Using the formula of conditional probability,

⇒ P(V|M) = P(M ∩ V) / P(M)

⇒ P(V|M) = (251/1477) / (365/1477)

⇒ P(V|M) = 251/365

The correct answer is option (D)

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Answer:

2

Step-by-step explanation:

1 , 3 and 4 have at least two pairs of parallel lines,

2 only have one pair of parallel line

(that's the only thing I can think of)

Answer:

d.

Step-by-step explanation:

tan Ф = opp. / adj. = 15/8

hyp = √(8²+15²) = √289 = 17

sin Ф = opp./ hyp = 15/ 17

9514 1404 393

Answer:

Step-by-step explanation:

In expanded form, the quadratic is ...

  (2x +1)(x +6) = 2x(x +6) +1(x +6) = 2x² +12x +x +6

  = 2x² +13x +6

Comparing this to ...

  Ax² +Bx +C

we see that ...

Answer:

the answer is

a=2

b=13

c=6

Answer: B.

Step-by-step explanation: The probability that a student is 15 years old includes those who are only 15: 450 students. This means that of 1,500 there are 450 students who are 15. The probability is set up as: 450/1,500 or 0.30.

Answer: 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.

Step-by-step explanation:

Answer: A 274.1

Step-by-step explanation: A=(n)(a)(ri/2). So, when eveverything is plugged in it would be (7)(8.7)(9/2)=274.05

Answer:

a) 8

b) 27

c) x+7

d) 5

Step-by-step explanation:

For a and b your are just adding 7

For c you are just writing the algebraic equation

For d you are just subtracting 7

Hope this helps!:)

Answer:

1. a. 8 years

   b. 27 years

   c. x+7 because x is an unknown value so it is x+7.

   d. 5 years old

Step-by-step explanation:

a, b, c, d it is the value they give you plus 7.

d. her sister is 5 years old because Britney is 7 years older than her. in this situation her sister is X years old, but they tell you what Britney's age is. so you do 12-7 because her sister is 7 years younger. 12-7= 5 so her sister is 5 years old. you can check this by doing 5+7, to get 12.