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OLga [1]
4 years ago
14

James took a math quiz in which he earned 1 point for every correct answer and lost 0.5 points for every incorrect answer.James

answered 12 out of 18 questions correctly. What was James quiz score?
Mathematics
1 answer:
Nuetrik [128]4 years ago
4 0

Answer:

9

Step-by-step explanation:

6x0.5=3-12=9

You might be interested in
Can someone help me solve this differentiation/tangent problem?
nirvana33 [79]
A)

\bf g'(x)=\stackrel{product~rule}{2x\cdot f(x)+x^2\cdot  f'(x)}\quad 
\begin{cases}
x=5\\
f(5)=5\\
f'(5)=5
\end{cases}
\\\\\\
g'(5)=2(5)\cdot f(5)+(5)^2\cdot f'(5)\implies g'(5)=50+500\\\\\\ g'(5)=550\\\\
-------------------------------\\\\
g(5)=(5)^2f(5)\implies g(5)=125
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}
\begin{cases}
x=5\\
y=125\\
\stackrel{m}{g'(5)}=550
\end{cases}\implies y-125=550(x-5)
\\\\\\
y-125=550x-2750\implies y=550x+400



b)

\bf h'(x)=\stackrel{quotient~rule}{\cfrac{f'(x)(x-6)~~-~~f(x)\cdot 1}{(x-6)^2}}\quad 
\begin{cases}
x=5\\
f(5)=5\\
f'(5)=5
\end{cases}
\\\\\\
h'(5)=\cfrac{f'(5)(5-6)~~-~~f(5)\cdot 1}{(5-6)^2}
\\\\\\
h'(5)=\cfrac{5(-1)-5}{(-1)^2}\implies h'(5)=-10\\\\
-------------------------------\\\\

\bf h(5)=\cfrac{f(5)}{5-6}\implies h(5)=\cfrac{5}{-1}\implies h(5)=-5
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\quad 
\begin{cases}
x=5\\
y=-5\\
\stackrel{m}{-10}
\end{cases}\implies y-(-5)=-10(x-5)
\\\\\\
y+5=-10x+50\implies y=-10x+45
3 0
4 years ago
Identify the polynomial a^2-b+c-d3
Leto [7]

Answer:

This is four term polynomial.

Step-by-step explanation:

Polynomial comes from poly(meaning “many”) and nomial (in this case meaning “term”). So it says “many terms”  A  polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

In this expression, we are to determine  the polynomials depending on the number of terms present in the expression. The prefixes of the classification suggest the number of terms present.

a^2 - b + c - d^3  

This is an example of a four-term polynomial. The first term is  a^2, second one is -b, the third one is c, and the fourth one is -d^3.

4 0
3 years ago
What is 7 (x+3) -7 = y simplified
ohaa [14]

Answer:

7 (x+3) -7 = y

7x+21-7=y

7x+14=y

8 0
3 years ago
The following are the last 10 run scores Colin got in cricket: 21, 14, 23, 23, 20, 8, 23, 34, 10, 22 a) Work out Colin's mean sc
irakobra [83]

Answer:

19.8,41.8

Step-by-step explanation:

wish you all the best hope you understand.

4 0
3 years ago
Hey! please help i’ll give brainliest! if it lets me:)
lozanna [386]

Answer:

south since its the opposite

5 0
3 years ago
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