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Shkiper50 [21]
3 years ago
10

When the a-value (the coefficient of the squared term) in a quadratic equation is positive, the parabola is?

Mathematics
2 answers:
lbvjy [14]3 years ago
8 0

Answer:

if the parabola is positive it would be facing up

Step-by-step explanation:

                                                                     

horsena [70]3 years ago
6 0

Answer:

pointed upward

Step-by-step explanation:

The coefficient of the quadratic term, a, determines how wide or narrow the graphs are, and whether the graph turns upward or downward. A positive quadratic coefficient causes the ends of the parabola to point upward.

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Eight less than a number is the same as four the number increased by seven
bekas [8.4K]
Let's write that as an equation. 

x-8=4x+7

So, you must solve for x by putting all of x on one side then solving for the value of one x. 

x-8=4x+7
-8=3x+7
-15=3x
-5=x

Check your work. 

(-5)-8=4(-5)+7
-13=-13
7 0
3 years ago
Read 2 more answers
1. Many Alpine ski centers base their calculations of revenues and profits on the belief that the average skier ski’s four times
pshichka [43]

Answer:

We cannot infer at the 10% significance level that the assumption of ski centers is wrong

Step-by-step explanation:

The null hypothesis for this question can be stated as  

Null hypothesis H0:  =4  

Alternate hypothesis Ha:  

The test is two tailed

Standard Deviation –  

 = 2

z=(4.84-4)/(2/sqrt(63))

=3.33

Z(0.1/2)=1.645 is less than Z =3.334

Hence, we will reject H0  

Hence, the average growth skier ski’s four times a year is not true  

6 0
3 years ago
Someone plz help me I will give brainliest!!
Naily [24]

Answer

well sorry cant answer the other question see if it works on here

Step-by-step explanation:

4 0
3 years ago
13. Translate the following verbal phrase
Artyom0805 [142]

a) algebraic expression

\frac{3+x}{5}=10

b) Solve and find value of x

x=47

Step-by-step explanation:

We need to translate the following verbal phrase  into an algebraic equation

The quotient of three more than a  number and five is ten

Let the number be x

three more than a  number is written as: 3+x

Since quotient is 10 so,

The algebraic expression will be:

\frac{3+x}{5}=10

Now, <u>solving to find value of x</u>

\frac{3+x}{5}=10

Multiplying both sides by 5

\frac{3+x}{5}*5=10*5\\3+x=50

Now Subtract -3 from both sides

3+x-3=50-3\\x=47

So, value of x=47

Learn More:

  • You can find more info about translating verbal phrase  into an algebraic equation

                    brainly.com/question/1600376

                    brainly.com/question/1617787

  • For finding value of x, more info can be found at:

                     brainly.com/question/1616605

Keywords: verbal phrase, algebraic expression

#learnwithBrainly

8 0
3 years ago
What are the answers
kolezko [41]

Answer:

I use app called math

way

Step-by-step explanation:

7 0
2 years ago
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