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prisoha [69]
3 years ago
13

Evaluate the variable expression xyz for the given values of x, y, and z. x = 4/5 , y = −15, z = 7/8

Mathematics
2 answers:
Georgia [21]3 years ago
7 0

Answer:

xyz = - 21 / 2

Step-by-step explanation:

xyz = (4/5)(-15)(7/8) = (4×-15×7)/(5×1×8)

= (4×-3×5×7)/(5×1×4×2)......    because:    15 = 5×3 and 8 = 4×2

xyz = - 21 / 2

Sav [38]3 years ago
6 0

Answer:

The answer is -10.5

Step-by-step explanation:

You can just simply multiply the numbers above.

xyz=(4/5)*(-15)*(7/8)=-10.5

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Answer:

1. 51°

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4. 60°

Step-by-step explanation:

The sum of the angles in a triangle is 180°. We can use the angles given to find the missing angle.

1. 51°

42+87+x=180

129+x=180

x=51

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2. 40°

110+30+x=180

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3. 65°

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4. 60°

60+60+x=180

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3 years ago
What is the lateral area of a prism which has a lateral edge of 4 inches and has a regular pentagonal base with an edge of 12 in
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Check the picture below.

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5(12 * 4) = 240 in².

7 0
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Step-by-step explanation:

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