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3 years ago

15

U^3-512=()(u^2+8u+64)

1 answer:

crimeas [40]3 years ago

8 0

Answer:

u=8

Step-by-step explanation:

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90 • 4 – 14 ÷ 2 + 102 ÷ 5 • 2

sveta [45]

90*4-14/2+102/5*2

360-7+40,8

393,8

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3 years ago

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The number of students in a school increased by 25%between last year and this year. Last year there were 250 students in the sch

alexandr1967 [171]

I think it's 275 sorry if I'm wrong

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WORTH 50! WILL AWARD BRAINLIEST! PLEASE SHOW STEPS! THANK YOU!

yanalaym [24]

Answer:

x = 45

Step-by-step explanation:

Re-order terms so constants are on the left
15 * x/9 - 42 =28

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2 years ago

Rewrite each of the following sentences using logical connectives. Assume that each symbol!, x₀, n, x, B represents some fixed o

katrin [286]

Answer:

a) $(f\ has\ a\ relative \ minimum \ at\ x_{0} )$ ∧ $(f\ is\ differenciable\ at\ x_{0} )$ ⇒ $f^{'} (x_{0} )=0$ .

b) $(n\ is\ prime)$ ⇒ $(n=2)$ ∨ $(n\ is \ odd)$ .

c) $R\ is \ irreflexive\$ ⇒ $(R\ is\ symmetric)$ ∧ $(R\ is\ transitive)$ .

d) $detB=0$ ⇒ $(B \ is\ square)$ ∧ $(B\ is\ not\ invertible)$ .

e) $f\ has\ a\ critical\ point\ at \ x_{0}$ ⇔ $(f^{'}(x_{0})=0)$ ∨ $() \ f^{'}(x_{0}) \ does\ not\ exist$ .

f) $2n$ ∨ $n>4$ ⇒ $2$ .

g) $6\geq n-3$ ⇔ $n>4$ ∨ $n>10$ .

h) $x \ is \ cauchy$ ⇒ $x\ is\ convergent$ .

i) $\lim_{x \to \ x_{0}} f(x)=f(x_{0})$ ⇒ $f\ is\ continous\ at \ x_{0}$ .

j) $(f\ is\ diferenciable\ at\ x_{0})$ ∧ $(f\ is\ increasing\ at\ x_{0})$ ⇒ $f^{'}(x_{0})>0$ .

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3 years ago

Marcus wanted to buy his mom a Christmas present and planned to spend $100. He ending up finding a really great present but actu

dedylja [7]

Answer:

The percent of his error is 20.5%

Step-by-step explanation:

subtract 100 from 120.50 and then divide the answer by 100. Then move the decimal point two places to the right to get 20.5%.

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2 years ago

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