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Phoenix [80]
3 years ago
12

Need help Please _______

Mathematics
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

900 m

Step-by-step explanation:

since it is an irregular figure, you would have to find the area of the rectangles making it up separately.

18 x 30 = 540

6 x 60 = 360

540 + 360 = 900

You might be interested in
Find the line y=a+bx which best approximates the data points
Vika [28.1K]

Answer:

y = 11.84x - 32.71

Step-by-step explanation:

Here, the given data points,

(−3,−70),(−1,−42),(1,−21),(2,−9),(4,14),

Let x represents the input value and y represents the output value,

So, the table that represents the given situation is,

x         -3            -1             1             2             4

y       -70          -42         -21         -9             14

By the above table,

\sum x=3

\sum y=-128

\sum xy = 269

\sum x^2=31

\sum y^2 = 7382

Let the equation of the line is,

y = bx + a

Where,

a=\frac{\sum y \sum x^2 - \sum x\sum xy}{n(\sum x^2)-(sum x)^2}

b=\frac{n\sum xy - \sum x \sumy}{n(\sum x^2)-(\sum x)^2}

n = number of data points = 5,

By substituting the values we get,

a = - 32.70547945 ≈ - 32.71,

b = 11.84246575 ≈ 11.84,

Hence, the equation of line would be,

y = 11.84x - 32.71

8 0
3 years ago
Simplify 8 over negative 3 divided by negative 4 over 9 . (5 points) <br> -8<br> -6<br> 6<br> 8
denpristay [2]

Answer:

6

Step-by-step explanation:

(8/3) / (-4/9)

when dividing fractions you use the acronym k.c.f (keep change flip)

keep the first fraction

change the operation (divide to multiply)

flip the other fraction

(8/-3) x (9/4)

after re-writing your expression, you want to solve

do this by multiplying both numerators by each other and same with the denominators

(-8x9) / (3x-4)

then you get a new fraction,

-72/-12

simplify,

-72/-12 = 6 (multiplying/dividing 2 negatives will always give you a positive)

3 0
3 years ago
Write 6 as a fraction with 3 in the denominator
tekilochka [14]
To find the correct fraction, multiply 6 by 3.
This gives you 18. Therefore the fraction is 18/3
Hope this helps!
6 0
3 years ago
Read 2 more answers
36x+9 equals what<br> big blak vjndjgd
Yuki888 [10]

We can conclude that the equation 36x + 9 equals -1/4.

<h3>What exactly is an equation?</h3>
  • An equation, in its most basic form, is a mathematical statement demonstrating that two mathematical expressions are equal.
  • 3x + 5 = 14, for example, is an equation in which the expressions 3x + 5 and 14 are separated by a 'equal' sign.

So,

  • 36x + 9
  • 36x + 9 = 0
  • 36x = -9
  • x = -9/36
  • x = -1/4

Therefore, we can conclude that the equation 36x + 9 equals -1/4.

Know more about equations here:

brainly.com/question/2972832

#SPJ9

6 0
1 year ago

ozzi

Answer:

m<SYD = 106.02°. Reason: alternate exterior angles are equal.

Step-by-step explanation:

8 0
3 years ago
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