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3 years ago

Zack had both chocolate cake and coconut cake at his birthday party. There were 50

Mathematics

1 answer:

Airida [17]3 years ago

3 0

Answer:

76%

Step-by-step explanation:

Because there were 50 people present at his birthday, 50 will be our denominator. Only 38 people chose to eat it so that will be our numerator. 38 out of 50 people chose to have chocolate cake:

$\frac{38}{50\\}$ would be the fraction.

50x2 would be 100 and we need 100 to make it a percentage. We will multiply the bottom and the top by 2.

$\frac{38}{50}$ x 2 = 76/100 = 76%

76% of the people at the party picked chocolate cake.

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Both the red and blue line segments stretch from center of the circle to a point on the the circle. The length of the blue line

Alja [10]

Answer:

The red line segment is also 8.

Step-by-step explanation:

The center to a point on a cirlce is always equal.

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3 years ago

If a circle has a radius of 6 cm what is the area in terms of pi ?

Andru [333]

Answer:

36pi

Step-by-step explanation:

A=(pi)r^2

r^2=6*6 which is 36

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3 years ago

Read 2 more answers

On a piece of paper, graph y< -*x+2. Then determine which answer choice matches the graph you drew.

alisha [4.7K]

D. graph D

Explanation

Step 1

graph the function as a line

convert

$\begin{gathered} y$

to graph, find 2 coordianates

a) when x=0

$\begin{gathered} y=-\frac{3}{4}x+2 \\ y=-\frac{3}{4}\cdot0+2 \\ y=0+2,\text{ y=2} \\ so,\text{ we have P1(0,2)} \end{gathered}$

b) when

x=-4

$\begin{gathered} y=-\frac{3}{4}x+2 \\ y=-\frac{3}{4}\cdot-4+2 \\ y=3+2 \\ y=5 \\ P2(-4,5) \end{gathered}$

now, using two points draw a line

Step 2

we are looking fro values under this line, so the answer is

D. graph D

7 0

1 year ago

The question is <br> in the link below

Tom [10]

Answer:

D: -3

Step-by-step explanation:

In order to find a slope of a line from two pairs, one way you can do that is by using a formula.

The formula is as follows:

Y² - Y¹

⁻⁻⁻⁻⁻⁻⁻⁻⁻

X² - X¹

Using this formula, let's plug in our values.

1. Our first Y, is -4. Place that into the equation above for Y².

2. Our second Y, is 8. Place that into Y¹. Wait! Since it's negative in the equation, your positive eight must turn into a -8.

3. Our first X, is 3. Just like our first Y, plug it into your X².

4. Our second X, is -1. Since it is already negative, and the equation is has a negative in it, the negative plus a negative makes the number positive.

Your equation should look like this: (now solve)

-4 - 8 -12

----------- = ------

3 + 1 4

Great, you've made it this far, there's ONE more step! Simplify the problem!

4 goes into 12, 3 times! This is because 4x3 is 12! Since your 12 is negative, your answer MUST stay negative, leaving your answer as -3.

If this leaves you confused, feel free to ask me more questions! :)

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4 years ago

Find (a) the amplitude, (b) the wavelength, (c) the period, and (d) the speed of a wave whose displacement is given by y= 1.5 co

leonid [27]

Answer with Step-by-step explanation: