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guapka [62]
3 years ago
13

Find the m A. 100 B.143 C. 38 D. 25

Mathematics
1 answer:
Ainat [17]3 years ago
3 0

Answer:

143 degrees.

Step-by-step explanation:

m < A + m < B = 180 degrees. ( inside angles of a parallelogram). So:-

4x - 9 + x - 1 = 180

5x - 10 = 180

5x = 190

x = 38

So m < A = 4(38) - 9

= 143 degrees.

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Identify each solid given its net.<br><br><br> please answer asap! will mark brainliest :)
7nadin3 [17]

Answer:

A triangular prism

Step-by-step explanation:

The 3 rectangles represent 3 sides of the prism.  Imagine folding on the line, and connecting the left side of the first rectangle to the right side of the third rectangle.  It will make a triangle that has depth.  

Looking that the top and bottom triangles attached to the third rectangle shows us that the top and bottom of this shape are triangles, which matches the three sides.  

What we have is a 3D triangle, which we call a triangular prism

7 0
3 years ago
Which of the following is an equation of the line through (2,3) and (-1, -12)?
SSSSS [86.1K]

Answer:

C (y=5x-7)

Step-by-step explanation:

First, you find the slope between the 2 points which is 5, then you use one of the points to form an equation.  

You then find it's y=5x-7.

8 0
2 years ago
Tanya has a garden with a trench around it. The garden is a rectangle with width 2 1/2 m and length 2 m. The trench and garden t
vichka [17]

Answer:

The area of a trench is 5.5 m² .

Step-by-step explanation:

Formula

Area of a rectangle = Length × Breadth

As given

Tanya has a garden with a trench around it.

The\ garden\ is\ a\ rectangle\ with\ width\ 2\frac{1}{2}\ m\ and\ length\ 2\ m.

i.e

The\ garden\ is\ a\ rectangle\ with\ width\ \frac{5}{2}\ m\ and\ length\ 2\ m.

Put in the above formula

Area\ of\ garden = \frac{5\times 2}{2}

                             = 5 m²

As given

The\ trench\ and\ garden\ together\ make\ a\ rectangle\ with\ width\ 3 \frac{1}{2}\ m\ and\ length\ 3 m.

i.e

The\ trench\ and\ garden\ together\ make\ a\ rectangle\ with\ width\ \frac{7}{2}\ m\ and\ length\ 3 m.

Area\ of\ garden\ with\ trench = \frac{7\times 3}{2}

Area\ of\ garden\ with\ trench = \frac{21}{2}

                                                  = 10.5 m²

Area of the trench = Area of garden with trench - Area of garden

Put the value in the above

Area of the trench = 10.5 m² - 5 m²

                               = 5.5 m ²

Therefore the area of a trench is 5.5 m² .


5 0
3 years ago
Read 2 more answers
A. 4 packs of pencils and 3 packs of erasers B. 4 packs of pencils and 5 packs of erasers C. 5 packs of pencils and 3 packs of e
amid [387]
C. 5 packs of pencils and 3 packs of erasers. it is c because no matter what 20(the pack of erasers) is multiplied by it will always end in a zero, therefore you would have to multiply 12 by a number that would make it a multiple of 20 as well which happens to be 5. 5×12=60 and 3×20=60
3 0
3 years ago
Best estimate for 89% of 152?
Karolina [17]
<span>135.28 should be it is that all the probm</span>
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3 years ago
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