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3 years ago

Im confused, can someone help?

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

Well, the y-intercept is represented by B. So b would be the dot crossing the y-axis in each graph (which you already circled). Next, the slope for top left is: -1.5, top right is: -1.7, bottom left is: 3, and bottom right is: 1.33. I got those by using this very helpful website named Desmos. Now, I’m order to write the equation for each graph is very simple, all you have to do is put in the slope and y-intercept into the equation. For example, the top left one would be:
y = -1.5x + 4 since we know that the slope is equal to -1.5 and the y-intercept is equal to 4. Hope this helps :)

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A beaded necklace is 2.5 feet long. Each bead is .25 inches wide & each pair of beads is separated by 1.25 inches of chain.

adelina 88 [10]

Answer:

There are 20 beads on the necklace.

Step-by-step explanation:

Given:

A beaded necklace is 2.5 feet long. Each bead is .25 inches wide & each pair of beads is separated by 1.25 inches of chain.

Now, to find the number of beads on the necklace.

The length of necklace = 2.5 feet.

So, we convert feet into inches by using conversion factor:

1 foot = 12 inches.

2.5 feet = 12 × 2.5 inches.

2.5 feet = 30 inches.

Thus, the length of necklace is 30 inches.

Let the number of beads be $x.$

The width of each bead = 0.25 inches.

The each pair of beads is separated by 1.25 inches.

Now, we put an equation to get the number of beads:

$(0.25+1.25)x=30$

$0.25x+1.25x=30$

$1.50x=30$

Dividing both sides by 1.50 we get:

$x=20.$

The number of beads = 20.

Therefore, there are 20 beads on the necklace.

6 0

3 years ago

Find the zeros of f(x)=x^2+10x

padilas [110]

The roots should be 0,-10

6 0

3 years ago

Which property best justifiies why the two expressions below are equivalent? 3(m+5)=3m+15

nadya68 [22]

The answer is the distributive property because it states that if you have a number multiplied by a quantity, you can just multiply that number by each of the terms in the quantity. For example, a(x+y)=ax+ay.

Hope this helps!

4 0

3 years ago

A club with five members will randomly select the president and vice president. Each possible pair will be assigned an equal por

Tju [1.3M]

Answer:

C. 20

Step-by-step explanation:

The order in which the members are selected is important. The first one selected is the president and the second is the vice president.

So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

In this problem:

2 people are going to be chosen from a set of 5. So

$P_{(5,2)} = \frac{5!}{(5-2)!} = 20$

So the correct answer is:

C. 20

3 0

3 years ago

Read 2 more answers

16 tablespoon to milliliters

Brut [27]

Answer: The answer is: " 240 milliliters (mL) " .

_________________________________________________

Step-by-step explanation:

_________________________________________________

Given 16 Tablespoons ; Convert to "mL" .

Note: "milliliters" can be abbreviated as "mL" .

Note: 15 mL = 1 Tablespoon .

16 Tablespoons * ( $\frac{15 mL}{1 Tablespoon}$ ) ;

= (16 * 15) mL

= 240 mL .

_________________________________________________

The answer is: " 240 milliliters (mL) " .

_________________________________________________

3 0

3 years ago