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BabaBlast [244]
3 years ago
15

The quantities x and y are proportional.pls help plsssss this work is due 20 min plsss helppp

Mathematics
1 answer:
Dahasolnce [82]3 years ago
5 0

Answer: 2.5

Step-by-step explanation:

y = rx

substitute numbers in and solve for r

if

y = 10

x = 4

then

10 = r4

r = 10/4 = 2.5

this works for all the other numbers and always gives r = 2.5

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What are the first four terms in the multiplication, or geometric, pattern in which the first term is 7 and then each term is mu
alexgriva [62]
They tell you that the first term is 7 so that cancels out the last answer choice immediately. Then they tell you that each term is multiplied by 4 so when you multiply 7x4 you get 28. This cancels out the second to last answer. Then keep multiplying by 4. 28x4 is 112. 112x4 is 448.
Therefore, the obvious answer is the first choice!
<span>7, 28, 112, 448</span>
7 0
3 years ago
Can somebody solve them and explain to me. <br> I'M LOST?!
lana66690 [7]

Answer:1. The measure of angle P is 53.  2. The value of x is 25.

3. The length of each side of the triangle is 30 cm.

Step-by-step explanation:

1. (3x +2) + (3x + 2 ) + (5x -11) =180  Angle Q and P have the same measures because it is an isosceles triangle that is why you have three expressions.

So x =17   and 3(17)+ 2 =53

2. (2x +10) + (2x+10) + (2x + 10)= 180 this is because the second triangle is an equilateral triangle which means all it have the same measures.

solve for x. and x  is 25.

3.The third triangle is also an equilateral triangle so you will make the expressions equal each other and solve for y .

1/10y + 11= 3/5y -4

y= 30

8 0
3 years ago
a sinusoid always function has an amplitude of 3, a frequency of 1/8pi, and a midline at 2. Which of the following equations sat
Katen [24]

Answer:

The correct option is;

f(x) = 3·sin x/8·π + 2

Step-by-step explanation:

The given parameters for the sinusoidal function are;

Amplitude of oscillation = 3

Frequency of oscillation = 1/8·π

Midline of oscillation= 2

The general form of sinusoidal equation is y = A·sin(B(x - C)) + D

Where;

A = The amplitude

B = The frequency

C = The horizontal shift

D = The midline or vertical shift

Substituting the given values into the general form of sinusoidal equation, we have;

f(x) = y =  3·sin(1/8·π(x - 0)) + 2 = 3·sin(x/8·π) + 2

Which gives;

f(x) = 3·sin(x/8·π) + 2.

5 0
3 years ago
Could someone please help me out
Mumz [18]

Answer:

I think its 9 & 12 maybe?

Step-by-step explanation:

Depending on what grade this is, that might be correct but im not 100% sure

7 0
3 years ago
Work out the volume of this sphere.<br> Give your answer to 1 decimal place.<br> 4.7 cm
Dmitry [639]

Answer:

434.9 cm³

Step-by-step explanation:

Volume of a sphere: 4/3πr³

Substitute the information to find the volume.

4/3π(4.7)³ = 434.9

7 0
3 years ago
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