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IrinaVladis [17]
3 years ago
10

Please help. Will mark as Brainliest.

Mathematics
2 answers:
Lostsunrise [7]3 years ago
7 0

Answer:

81 m^2

Step-by-step explanation:

First find the area of the lower rectangle

A = l*w

A = 12* 5 = 60m^2

Then we find the area of the middle rectangle

The height is 4m - 3m = 1 meter

The length is 12m - 3m = 9m

A = 9*1 = 9m^2

Then we find the area of the top rectangle

The length is 4 m and the width is 3 m

A = 3*4 = 12m^2

The total area is 60+9+12 =81 m^2

nikdorinn [45]3 years ago
3 0

Answer:

81

Step-by-step explanation:

A=wl - area of a rectangle

5x6=30

9x4=36

3x5=15

15+36+30=81

hope this helps!

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consider a quadrilateral with vertices d(0,0), i(5,5) n(8,4) g(7,1). determine the most accurate type of quadrilateral from the
Burka [1]

Answer:

Plotting the points into the coordinate plane gives us an observation that this quadrilateral with vertices d(0,0), i(5,5) n(8,4) g(7,1) is a KITE, as shown in figure a.

Step-by-step explanation:

Considering the quadrilateral with vertices

  • d(0,0)
  • i(5,5)
  • n(8,4)
  • g(7,1)

Plotting the points into the coordinate plane gives us an observation that this quadrilateral with vertices d(0,0), i(5,5) n(8,4) g(7,1) is a KITE, as shown in figure a.

From the figure a, it is clear that the quadrilateral has

  • Two pairs of sides
  • Each pair having two equal-length sides which are adjacent
  • The angles being equal where the two pairs meet
  • Diagonals as shown in dashed lines cross at right angles,  and one of the diagonals does bisect the other - cuts equally in half

Please check the attached figure a.

Keywords: kite, quadrilateral

Learn more about kite and quadrilateral from brainly.com/question/3318099

#learnwithBrainly

4 0
3 years ago
Betty had 1/3 yard of ribbon. She used 1/2 of it. How many yards of ribbon did she use?
Charra [1.4K]

Answer:

b. 1/6 yd

Step-by-step explanation:

When Betty used 1/2 OF the 1/3 yards she has she has to multiple those. It's easier to put it in a sentence in my opinion because then you can see the "of" in the sentence which means to multiply. Hope this helps!

6 0
3 years ago
What is equal to 275%
Alla [95]
As a decimal, you would have to divide 275 by 100 

275/100 = 2.75
7 0
3 years ago
Read 2 more answers
When it is operating properly, a chemical plant has a daily production rate that is normally distributed with a mean of 885 tons
-BARSIC- [3]

Answer:

<em>The test statistic Z = 1.844 < 1.96 at 0.05 level of significance</em>

<em>Null hypothesis is accepted </em>

<em>Yes he is right</em>

<em>The manager claims that at least 95 % probability that the plant is operating properly</em>

Step-by-step explanation:

<u>Explanation</u>:-

Given data Population mean

                                           μ     = 885 tons /day

Given random sample size

                                          n = 60

mean of the sample

                                        x⁻  = 875 tons/day

The standard deviation of the Population

                                      σ = 42 tons/day

<em><u>Null hypothesis</u></em><em>:- H₀: </em>The manager claims that at least 95 % probability that the plant is operating properly

<u><em>Alternative Hypothesis :H₁</em></u>: The manager do not claims that at least 95 % probability that the plant is operating properly

<em>Level of significance</em> =  0.05

The test statistic

 Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }

Z = \frac{875 -885}{\frac{42}{\sqrt{60} } }

Z = \frac{-10}{5.422} = -1.844

|Z| = |-1.844| = 1.844

<em>The tabulated value</em>

<em>                          </em>Z_{\frac{0.05}{2} } = Z_{0.025} = 1.96<em></em>

<em>The calculated value Z = 1.844 < 1.96 at 0.05 level of significance</em>

<em>Null hypothesis is accepted </em>

<u><em>Conclusion</em></u><em>:-</em>

<em>The manager claims that at least 95 % probability that the plant is operating properly</em>

<em></em>

<em></em>

8 0
3 years ago
Which equation represents a proportional relationship that has a constant of proportionality equal to –10?
o-na [289]
The answer to your question is c.

6 0
3 years ago
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