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3 years ago

Помогите с решением Матриц

Mathematics

1 answer:

vivado [14]3 years ago

5 0

Answer:

я не знаю потому что я не говорю по русски

Step-by-step explanation:

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Please help!!! I'm super confused with this one, show work so that I can figure out what I did wrong.

givi [52]

Answer: The length of CU is 117 units.

Step-by-step explanation:

Given: ΔWCD≈ΔWUV

We know that if two triangles are similar, then their corresponding sides are proportional.

∴ $\frac{WU}{WC}=\frac{WV}{WD}$

$\frac{36x-1}{26}=\frac{110}{20}\\\Rightarrow\ 36x-1=\frac{11}{2}\times26\\\Rightarrow36x-1=143\\\Rightarrow\ 36x=143+1\\\Rightarrow\ 36x=144\\\Rightarrow\ x=4$

∴ WU= $36(4)-1=143$

Also , WU=WC+CU

⇒CU=WU-WC

⇒CU=143-26=117 units

5 0

3 years ago

Work out b(4½-3⅔)+1⅔

Zolol [24]

Answer:

2 $\frac{1}{2}$

Step-by-step explanation:

Change the mixed numbers to improper fractions

( $\frac{9}{2}$ - $\frac{11}{3}$ ) + $\frac{5}{3}$ ← the LCM of 2 and 3 is 6

= $\frac{9(3)}{2(3)}$ - $\frac{11(2)}{3(2)}$ + $\frac{5(2)}{3(2)}$

= $\frac{27}{6}$ - $\frac{22}{6}$ + $\frac{10}{6}$

= $\frac{5}{6}$ + $\frac{10}{6}$

= $\frac{15}{6}$

= $\frac{5}{2}$

= 2 $\frac{1}{2}$

6 0

3 years ago

A swimming pool has 30 gallons of water in it. Water was added to the pool at a rate of 5 gallons per second. Which equation mod

ale4655 [162]

Answer:

t=5W+30 or C

Step-by-step explanation:

The pool already has 30 in it so you would initially be adding it, not multiplying it to anything. Then since every second 5 gallons of water is being added to the pool, you add the 30 gallons the pool already contains to 5W.

3 0

3 years ago

The value of a computer is given by the expression 2000+(-200t) where t is the time in years.

Rashid [163]

If it was one year it would be 2200 and you just keep adding 200 for each year.

5 0

3 years ago

Solve the equation.

vfiekz [6]

Answer:

52 nerds=700>x1

Step-by-step explanation:

its confusing

5 0

3 years ago