$81! 70 + 11 = 81, therefore dan payed $81
Answer:
195.6
Step-by-step explanation:
area of base= 1/2 * 8 * 6.9 = 27.6
area of lateral face= 1/2 * 8 * 14 = 56
total surface area = 27.6 + 56 + 56 + 56 = 195.6
Answer:
Step-by-step explanation:
Is C
Answer:
1230.88
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
V = (3.14) * (7)^2 * 8
V = 3.14 * 49*8
V =1230.88
Answer: <em>7) -12;</em>
<em> 8) 0 или 1.</em>
Step-by-step explanation:
<em>7.</em>
<em>x ≤ - 12</em>
<em>x ∈ ( - ∞; - 12]</em>
<em>Наибольшее целое значение, при котором верно неравенство равно </em><em>-12.</em>
<em></em>
<em>8.</em>
<em>-9,6</em><em>*</em><em>8 > - 9,627</em>
<em>Варианты возможных чисел: -9,618 и -9,608.</em>
<em>Значит вместо звездочки можно подставить цифры 0 или 1.</em>