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3 years ago

What is the 1st term when –5z2 + 7z4 + 11z – 8z3 is arranged in descending order?

Mathematics

1 answer:

djverab [1.8K]3 years ago

8 0

The first term would be 7z4

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Find the surface area. Round your answers to the nearest hundredths if necessary.

Likurg_2 [28]

Sa=452.39 452.39=4πr² -12.56 on both sides (12.56 is pi times 4) √439.83=√r² 20.97 FOR VOLUME v=4/3πr³ 4*π20.97³÷3 38626.37
hopes that helps

7 0

4 years ago

4(4x + 6) = 12 solve for x

Irina-Kira [14]

Answer:

x= -3/4

Step-by-step explanation:

4(4x+ 6)= 12

16x+24=12

16x=-12

x=-3/4

6 0

3 years ago

Read 2 more answers

The number T of teams that have participated in a robot-building competition for high-school students over a recent period of ti

Katarina [22]

Solving the quadratic equation, it is found that the number of teams is greater than 1000 after 3.1 years.

The number of teams after x years is given by:

$T(x) = 17.155x^2 + 193.68x + 235.81$

Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:

$17.155x^2 + 193.68x + 235.81 = 1000$

$17.155x^2 + 193.68x - 764.19 = 0$

Which has coefficients $a = 17.155, b = 193.68, c = -764.19$ , then:

$\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66$

$x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1$

$x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3$

We want the positive root, so the number of teams is greater than 1000 after 3.1 years.

A similar problem is given at brainly.com/question/10489198

8 0

2 years ago

HELP PLEASE!!!!!! PLEASE!!!!

Nezavi [6.7K]

Answer:

x = 15°

Step-by-step explanation:

7x + 28° = 133° { being vertically opposite angles }

7x = 133° - 28°

7x = 105°

x = 105° / 7

x = 15°

< WPZ = 133° {being vertically opposite angles }

< WPZ = 7x + 28° = 7 * 15 + 28° = 133°

Hope it will help :)❤

4 0

3 years ago

Read 2 more answers

Find m∠POQ if ∠POQ and ∠QOR form a linear pair, as shown in the figure.

il63 [147K]

Answer:

155

Step-by-step explanation:

∠QOR= 25

∠POQ = x

here sum of both angles is 180 ( by linear pair)

therefore,

∠QOR + ∠POQ =180

25 + x = 180

x=180-25

x=155

hence, ∠POQ= 155

8 0

3 years ago