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3 years ago

Please help i tried and don't know what to do

Mathematics

1 answer:

Kipish [7]3 years ago

7 0

In this question we have a graph given and the curve represents parabola or quadratic equation and we have to find the zeroes, that is, we need to find the value of x where the curve crosses the x axis . And from the given graph , we can say that the curve crosses the y axis at y=-8 . and the x axis at x=-4 and x =2. So the zeroes of the given graph is x=-4,2 and the y intercept is -8 .

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Which expression represents the number of feet that are in x yards?

AleksandrR [38]

we know that

$1\ yard=3\ feet$

Let

y-------> the number of feet that are in x yards

by proportion

<u>Find the value of y</u>

$\frac{3}{1} \frac{feet}{yard}=\frac{y}{x} \frac{feet}{yards} \\ \\y=3x\ feet$

therefore

<u>the answer is the option C</u>

$3x$

3 0

3 years ago

Read 2 more answers

Cathy lives in a state where speeders are fined $15 for each mile per hour over the speed limit. Cathy was given a ticket for $1

Simora [160]

Answer:

Cathy was driving at a speed of 67 miles per hour.

Step-by-step explanation:

Fined $15 for each mile per hour over the speed limit. Cathy was given a ticket for $105.

We solve this using a rule of three.

1 mile - $15

x miles - $105

Applying cross multiplication:

15x = 105

x = 105/5 = 7.

Cathy was 7 miles above the speed limit.

How fast was Cathy driving?

7 miles above the speed limit of 60 miles per hour, so 60 + 7 = 67 miles per hour.

Cathy was driving at a speed of 67 miles per hour.

3 0

3 years ago

Ez pts

Kobotan [32]

Answer:

well first 312 in radical form is √312 and that simplified is 2√78 or 17.66352173

Step-by-step explanation:

3 0

3 years ago

A ribbon is 5 1/2 feet long. Ms. Gurthie wats to cut it into 1/4 foot segments. How many pieces can she make? Be see to simplify

Softa [21]

Answer:

She can make 4 pieces

Step-by-step explanation:

1/4 Of 5 1/2 ft is 1ft 4.5 inches

5 0

3 years ago

What is 20% of 60? i need a answer now

stellarik [79]

Answer:

12.

Step-by-step explanation:

20% is equal to .2 as a decimal.

When the question askes 20% OF 60, we know it means multiplying.

We do .2 x 60 and get 12 as our answer.

So, 20% of 60 is 12.

Hope this helps :)

6 0

3 years ago