In 1943, the temperature in Rapid City, South Dakota, fell about 45 degrees in 5 minutes. What was the average drop in temperature per minute?

Answer:

(4w^2+180w+1800) meters^2

Explanation:

(60+2w) x (30+2w)

1800+120w+4w^2+60w

Combine like terms and rearrange into quadratic equation

4w^2+180w+1800

Don't forget to put your units and since we are talking about area be sure to add your squared symbol

Answer:

1. h=1.5d. 2. 30cm in 20 days

Step-by-step explanation:

2. 20×1.5

Hai!

I believe this would be 11.

Brainliest please?

Answer:

22.86

Step-by-step explanation:

2.54 x 9 will give you the answer.

Answer:

22.86

Step-by-step explanation:

2.54×9 = 22.86

hope this helps :)

Answer:

17= Prime number

54= Composite

77=Composite

23=Prime

Hello there!

Prime numbers have 2 factors and composite numbers have 3 or more factors.

17 is prime because it has only 2 factors: 1 and itself.

54 is composite because it has more than 3 factors.

77 is composite because it has more than 3 factors.

23 is prime because it has only 2 factors.

Hope this helps you!

~Just a joyful teen

[tex]SilentNature[/tex]

Answer:

The last one is incorrect

Step-by-step explanation:

Answer:

the anwser is B

Step-by-step explanation:

Answer:

850.9 feet

Step-by-step explanation:

The horizontal distance between Ryan and the dolphin is 850.907 feet.

One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.

We have,

Ryan is 228 feet above the water and the angle of depression to the dolphin is 15.

Using trigonometry

tan 15 = 228/ x

x= 228/ tan 15

x= 228 / 0.26794919243

x = 850.907  feet

Learn more about Trigonometry here:

https://brainly.com/question/29002217

#SPJ2

Answer:

-5

Step-by-step explanation:

3.8x= -19

3.8x/3.8= -19/3.8

x=-5

Answer:

70% of the people at the fair are students

165 people are on the ride

Step-by-step explanation:

In order to find a percentage, take the fraction given, 385/550, and divide the numerator, 385, and divide it by the denominator, 550. Once completing this, we get 0.7

Next, we multiply the result by 100, and get 70, thus, 385 is 70% of 550.

To find how many people 30% of 550 is, we take the percentage and put it in a fraction with the denominator being 100(changes with size of fraction like a decimal, 300 would be over a denominator of 1000)

With 30/100, we then multiply by 550 with the equation looking like this:

30/100*550/1

Once we finish multiplying(typically using a calculator, although you can do it manually) we get 165, the value of how many people are on rides out of the total 550.

Answer:

8

Step-by-step explanation:

g(12) = 5/4(12)-7 = 15-7 = 8

Answer:

0.64

Step-by-step explanation:

Bananas:0.49:1

?:1.31

1x1.31 is 1.31 so

0.49x1.31=0.64

Answer:

x= 2 or x= -3

Step-by-step explanation:

Bring the equations together using a common denominator (x-5) (x+7)

x-29/(x-5) (x+7)= 1

Multiply both sides by (x-5) (x+7)

x- 29= (x-5) (x+7)

x- 29= (x-5) (x+7)= x^2 + 2x - 35

-x^2 - x + 6 = 0

-(x-2)(x+3)= 0

Multiply both sides by -1

(x-2)(x+3)= 0

Split it into two equations

x-2= 0 or x+3= 0

x= 2 or x= -3

Answer:

[tex]0.55[/tex] square meters

Step-by-step explanation:

The area of a triangle can be calculated by multiplying its height and base, then dividing the result by [tex]2[/tex]. As an algebraic expression, that would be [tex]\frac{bh}{2}[/tex], where [tex]b[/tex] is the base and [tex]h[/tex] is the height. In this case, [tex]b=2.2[/tex] and [tex]h=0.5[/tex]. Therefore, the area of the triangle is:

[tex]\frac{bh}{2}\\= \frac{2.2*0.5}{2}\\=\frac{1.1}{2} \\= 0.55[/tex]

Hope this helps!

By observing the diagram, we have :

Now, we know that :

[tex] \large \underline{\boxed{\tt{Area_{(triangle)} = \dfrac{1}{2} \times base \times height}}}[/tex]

So, by substituting values, Area of given triangle will be :

[tex] \sf : \implies Area = \dfrac{1}{2} \times 2.2\: m \times 0.5\: m[/tex]

[tex] \sf : \implies Area = \dfrac{1}{\cancel{2}} \times \dfrac{\cancel{22}}{10} \: m \times \dfrac{5}{10} \: m[/tex]

[tex] \sf : \implies Area = 1 \times \dfrac{11}{10} \: m \times \dfrac{5}{10}\: m[/tex]

[tex] \sf : \implies Area = \dfrac{55}{100} \: m^{2}[/tex]

[tex] \sf : \implies Area = 0.55 \: m^{2}[/tex]

Hence, Area of given triangle is 0.55 m².

Answer:

(39) -6x+7 (40) 33n+15 (41) -4a-4 (42) 2k

Step-by-step explanation:

Answer:

Step-by-step explanation:

The function is g(t) = -16t² + vt + h

At h = 0 and v = 80 we get the function:

We know g(t) can't be negative, then:

Correct option is B

Answer:

34

Step-by-step explanation:

The dog weighs 34 pounds

34-24=10

24+10=34

Step-by-step explanation:

this is the answer I hope it helps

Answer:

its 444

Step-by-step explanation:

Answer:

In quadrilaterals all parrallelograms which incude

Rectangle, Square, Rhoumbus and Parrallelogram have their diagnoos bisecting each other

Other than Parrallelograms Non Parrallelogram shapes like Trapezium also has its Diagnols bisectneach other

Hope it helps

Answer:

230 g

Step-by-step explanation:

4.3 x molar mass of NH4Cl

Molar Mass of NH4Cl = 14.0067 + 4x1.0079 + 35.453 = 53.491

4.3 x 53.491 = 230 g

ok the first one

and this is the second one

Answer:

Step-by-step explanation:

166:581

Answer:

19 my person of unidentified gender (random text to make this longer)

if you have to get the answer for 4 multiplied by a number to make it 76 you know you could get the same number by dividing 76 / 4

the answer you can try is 4(x+19)=76

Answer: Anwse is 36 and 23

Step-by-step explanation:

Answer:

110 degrees

Step-by-step explanation:

the angles stay the same even if the size changes!

Answer:

110 because if you add up the angles and subtract the rest then you get it

Answer:

.

Step-by-step explanation:

.