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Soloha48 [4]
3 years ago
11

The city park in which Allen plays is a square and measures exactly one million square feet. Which side dimensions produce the m

ost accurate measurement of the park? A) 998.8 x 997.7 B) 998.84 x 997.73 C) 998.843 x 997.731 D) 999 x 998
Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0
A- 998.8×997.7=996502.76
B- 998.84×997.73=996572.6332
C- 998.843×997.731=996576.6252
D - 999×998=997002

So D is the answer
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2x^2=9-3x <br> Find the factors
d1i1m1o1n [39]

Answer:

x = -3, $ \frac{3}{2} $

Step-by-step explanation:

The given quadratic equation is: $ 2x^2 = 9 - 3x $

This can be written as: $ 2x^2 + 3x - 9 = 0 $

To solve a quadratic equation of the form $ ax^2 + bx + c = 0 $ we use the formula:

           $ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} $

Here, a = 2; b = 3; c = - 9

Therefore, the roots of the equation are:

$ x = \frac{- 3 \pm \sqrt{9 - 4(2)(-9)}}{2(2)} $

$ \implies x = \frac{-3 \pm \sqrt{81}}{4} $

$ \implies x = \frac{-3 \pm 9}{4} $

We get two values of 'x', viz.,

x = $ \frac{-3 + 9}{4} $ and $ \frac{- 3 - 9}{4} $

$ \implies x = \frac{6}{4} \hspace{5mm} \& \hspace{5mm} \frac{-12}{4} $

⇒ x = -3, 3/2

Since the factors of the quadratic equation is asked, we write it as:

(x + 3)(x - $ \frac{3}{2} $) = 0

because, if (x - a)(x - b) are the factors of a quadratic equation, then 'a' and 'b' are its roots.

Multiply (x + 3) and (x - $ \frac{3}{2} $ to see that this indeed is the given quadratic equation.

5 0
3 years ago
Class of 50 students dressed up 38% have white shirts. How many are wearing white shirts?
shutvik [7]

Step-by-step explanation:

☥ \underline{ \underline{ \text{Given} }}:

  • Total number of students = 50
  • Percentage of students who are wearing white shirts = 38 %

☥ \underline{ \underline {\sf{To \: find} }}:

  • Total number of students who are wearing white shirts

☥ \underline{ \underline{ \sf{Solution} }} :

⟹ \sf{38\% \: of \: 50} =  \frac{38}{100}  \times 50 =  \boxed{ \sf{19}}

\red{ \boxed{ \boxed{ \tt{⟿ \: Our \: final \: answer : 19}}}}

Hope I helped ! ♡

Have a wonderful day / night ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

3 0
3 years ago
The Venn diagram shows the results of two events resulting from rolling a number cube.
gulaghasi [49]

Answer:   P(A\cap B)=\frac{1}{3}

P(A)=\frac{1}{3}

P(B)=1

P(A|B)=\frac{1}{3}

Step-by-step explanation:

From the given figure it can be seen that

Total number on cube= n(S)=6

Intersection of A and B = n(A ∩ B)= 2

Therefore,

P(A\cap B)=\frac{n(A\cap B)}{n(s)}=\frac{2}{6}=\frac{1}{3}

Also, The number of elements in A = 2

Therefore,

P(A)=\frac{n(A)}{n(s)}=\frac{2}{6}=\frac{1}{3}

Similarly, The number of elements in B= 6

Therefore,

P(B)=\frac{n(B)}{n(s)}=\frac{6}{6}=1

The formula to find the conditional probability is given by :-

P(A|B)=\frac{P(A\cap B)}{P(B)}\\\\\Rightarrow P(A|B)=\frac{\frac{1}{3}}{1}=\frac{1}{3}

4 0
3 years ago
Read 2 more answers
Bruce rents snowmobiles to tourists.He charges $135 for 4 hours and $202.50 for 6 hours
denis-greek [22]
I think the answer is 1215
6 0
3 years ago
Read 2 more answers
HELP ASAP!!! There are 18 girls and 12 boys in an 8th grade class. Two students are chosen to go on the field trip. What is the
noname [10]

Answer:

12/30

Step-by-step explanation:

3 0
3 years ago
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