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Varvara68 [4.7K]
3 years ago
10

Solve the equation with quadratic formula y^2+3y-10=0

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0

Answer:

y = 2 and y = -5

Step-by-step explanation:

Because the coefficient is not greater than 1, you can simply solve the problem without the quadratic formula.

By using the "x" method, you must figure out what multiplies to give you -10, and adds to give you 3

So, you find your values as 5 and -2. You then set these values equal to zero in terms of Y. As so---- (y+5)=0 and (y-2)=0

Then, you solve out to get your answer! Y is equal to -5 and 2

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How do you graph? <br> y=−4/3x+8y
trasher [3.6K]

How do we graph anything? Make a table of values for x and y and then plot each point. After plotting each point on the xy-plane, connect each point with a straight line or curve (depending on the function).


In this case, we must first isolate y.


y = (-4/3)x + 8y


y - 8y = (-4/3)x


-7y = (-4/3)x


y = (-4/3)x ÷ (-7)


y = (4/21)x


Now follow the steps above.


8 0
3 years ago
A scale on a bike path shows that 3 inches represents 5 miles. How many inches on the map are equal to 30 miles
PtichkaEL [24]

Answer:

18 inches.

Step-by-step explanation:

If the ratio for inches to miles is

\frac{3}{5},

then you multiply the top and bottom by 6 to get to 30. This gets the numerator to 18 inches.

8 0
3 years ago
Dominic pays 7% interest on his $16,000 college loan and 12% interest on his $12,000 car loan. What average interest rate does h
Naya [18.7K]

The average interest rate is 8.57% paid on the total of $28,000

<h3>What is the percentage?</h3>

The percentage is defined as a ratio expressed as a fraction of 100.

Dominic pays 7% interest on his $16,000 college loan,

And 12% interest on his $12,000 car loan

To determine the average interest rate paid on the total $28,000 he owes

Calculating the total interest amount paid :

⇒ 7% of 16,000 +  12% of 12,000

⇒ (7/100)16,000 +  (12/100)12,000

⇒ (0.07)16,000 +  (0.12)12,000

⇒ (0.07)16,000 +  (0.12)12,000

⇒ 960 + 1440

⇒ 2400

So the average interest rate paid on the total of $28,000 as

⇒ 2400/28,000 = 0.0857 ≈ 8.57%

Hence, the average interest rate is 8.57% paid on the total of $28,000

Learn more about the percentage here:

brainly.com/question/24159063

#SPJ1

7 0
1 year ago
The map on your phone indicates that 1 inch equals 12 miles. On your phone, the store is exactly 2. inches from your current loc
Bezzdna [24]

Answer:

24 miles right?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Insanity offers birthday parties for a fee of $160 plus $4 per person. If you can spend no more than $200 on your party, what is
never [62]
Max amount of people who can attend is 10.

200-160=40
40 ÷4= 10
4 0
3 years ago
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