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Over [174]
3 years ago
8

Solve the quadratic equation Y=2x^2-4x

Mathematics
1 answer:
lozanna [386]3 years ago
5 0

Answer:

Step-by-step explanation:

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To make some extra money over the summer, Kelsey and Olivia got jobs mowing the 5 acres of grass at the local park. Each week, t
FromTheMoon [43]

Answer:

Area covered by each girl = 2.5 acre

Step-by-step explanation:

Given:

Number of girls = 2

Total area = 5 acre

Find:

How much area covered by each girl

Computation:

Area covered by each girl = Total area / Number of girls

Area covered by each girl = 5 / 2

Area covered by each girl = 2.5 acre

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3 years ago
What is the area of a regular octagon with the side length 1 meter
Whitepunk [10]

Answer:

1

Step-by-step explanation:

3 0
3 years ago
Work out the value of 5x8 x 5-2/5x4
Alisiya [41]

Answer:

=6

Step-by-step explanation:

(5×8)×(5-2)/(5×4)

Numerator =40×3

=120

Denominator = 5×4

=20

simplifying 120/20

=6

5 0
3 years ago
Read 2 more answers
Day 6: Textbook Page 321 Problem 9 When Esteban looks at the puddle, he sees a reflection of the top of the cactus. How tall is
Novay_Z [31]

The given figure can be drawn as,

From the figure,

\tan \theta=\frac{opposite\text{ side}}{\text{adjacent side}}

\begin{gathered} \tan \theta=\frac{DE}{EC} \\ \tan \theta=\frac{1.5}{2.5} \\ \tan \theta=0.6 \end{gathered}

Since angle of incidence will be equal to angle of reflection, \begin{gathered} \text{tan}Therefore, the height of cactus is 6 m.

6 0
11 months ago
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 seconds, due to human reaction time at the s
Yakvenalex [24]

Answer:

a) 2,650%

b) 27,400%

c) 164,900%

Step-by-step explanation:

We want to measure the percentage we would have to increase the typical value to obtain the values given in a), b) and c).  

But 0.2 increased in x% equals  

0.2 + 0.2(x/100) =0.2(1+x/100)

So, if we want to increase 0.2 in x%, we must multiply it by (1+x/100)

a)

We need to find the value of x such that

0.2(1+x/100) = 5.5 ⇒ (1+x/100)=5.5/0.2 ⇒  1+x/100=27.5

⇒  x/100=26.5 ⇒ x=2,650%

b)

0.2(1+x/100) = 55 ⇒ (1+x/100)=55/0.2 ⇒  1+x/100=275

⇒  x/100=274 ⇒ x=27,400%

c)

5.5 min = 5.5*60 s = 330

0.2(1+x/100) = 330 ⇒ (1+x/100)=330/0.2 ⇒  1+x/100=1,650

⇒  x/100=1,649 ⇒ x=164,900%

4 0
3 years ago
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