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NNADVOKAT [17]
4 years ago
11

Which expression was simplified

Mathematics
2 answers:
inessss [21]4 years ago
8 0
First one is the correct answer
Ber [7]4 years ago
7 0
The first one is simplified!
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. A pitcher’s mound on a women’s softball field is 43 feet from home plate and the distance between the bases is 60 feet. How fa
butalik [34]

Answer:

42.43 ft

Step-by-step explanation:

Please find attached an image of the softball pitch

h² = p² + f² -2x p×f×cos45

h² = 43² + 60² - 2x (43)(60) x 0.7071

h² = 1849 +  3600 - 3648.636

h² = 1800.364

h = √1800.364

h = 42.43 feet

8 0
3 years ago
Match the following.
KIM [24]

Answers:

  1. Pyramid
  2. Rectangular Prism
  3. Cylinder
  4. Cone
  5. Triangular Prism

==============================================

Explanation:

  1. The formula for the volume of a pyramid is (1/3)*B*h, where B is the area of the base. If we're dealing with a rectangular pyramid, like those found in Egypt, then the area of the base is B = length*width.
  2. The volume for a prism is found by multiplying length (L), width (W), and height (H). So V = LWH. Think of having a 2 by 3 rectangle of blocks. We would have 2*3 = 6 blocks in total. Then if we have 5 layers of these stacked then we have 2*3*5 = 6*5 = 30 blocks in total. This is one way to visualize how the volume formula works.
  3. To get the volume of a cylinder, we multiply the area of the base (pi*r^2) by the height (h). So that's where pi*r^2*h comes from.
  4. The volume of a cone is 1/3 that of a cylinder's volume. This is when the cone and cylinder have the same radius, and also the same height. It's not required that r = h.
  5. Since all of the other answer choices are used up, the only thing left is "triangular prism". It's strongly implied here that B is the area of the triangular base. Though the formula Bh applies to any prism and it doesn't have to be a triangular prism. Note how B = LW, so Bh is the same as LWH, meaning that a rectangular prism can use the Bh formula.
8 0
3 years ago
L1 and L2 are two straight lines. The origin of the coordinate axes is O. L1 has equation 5x + 10y = 8 L2 is perpendicular to L1
Ivenika [448]

Answer:

40 sq units

Step-by-step explanation:

5x + 10y = 8\\\Rightarrow y=\dfrac{8-5x}{10}\\\Rightarrow y=-\dfrac{1}{2}x+\dfrac{2}{5}

Slope of L_2 is m_2

m_1m_2=-1\\\Rightarrow m_2=-\dfrac{1}{m_1}\\\Rightarrow m_2=-\dfrac{1}{-\dfrac{1}{2}}\\\Rightarrow m_2=2

L_2 passes through point (8,6)

y-6=2(x-8)\\\Rightarrow y=2x-16+6\\\Rightarrow y=2x-10

Point at x axis where L_2 intersects is

0=2x-10\\\Rightarrow x=\dfrac{10}{2}\\\Rightarrow x=5

Point A of the triangle will be (5,0)

L_2 intersects line x=-3. The point is

y=2\times(-3)-10\\\Rightarrow y=-6-10\\\Rightarrow y=-16

The points of the triangle are A(5,0), O(0,0), B(-3,-16)

Area of triangle is given by

A=\dfrac{|A_x(B_y-O_y)+B_x(A_y-O_y)+O_x(A_y-B_y)|}{2}\\\Rightarrow A=\dfrac{|5(-16-0)+-3(0-0)+0(0-(-16))|}{2}\\\Rightarrow A=40\ \text{sq units}

The area of the triangle is 40 sq units.

6 0
3 years ago
Number five<br> I need help with this answer please help me
BaLLatris [955]
Because the conditions of the temperate zone is just right for organisms to thrive. not too terribly hot or cold
3 0
4 years ago
Read 2 more answers
A right triangle with one angle that is 50*
denis-greek [22]
Its an acute triangle
7 0
3 years ago
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