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3 years ago

Pls help me ASAP it needs to be turned in today pls help

Mathematics

2 answers:

adelina 88 [10]3 years ago

7 0

Answer:

13x-12 the last one

Step-by-step explanation:

Anna35 [415]3 years ago

6 0

Answer:

13x-12

Step-by-step explanation:

4(3x-5)+x+8

12x-20 +x+8

13x-12

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Which number is greater tha 9/4

Naddika [18.5K]

Answer:

Step-by-step explanation:

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3 years ago

if y varies inversely as x and y = 194 when x = -13, find y when x = 50. Round your answer to the nearest hundredth, if necessar

pashok25 [27]

Step-by-step explanation:

Since, y varies inversely as x.

$\therefore \: y = \frac{k}{x} \\ (k = constant \: of \: proportionality) \\ \therefore \: xy = k...(1) \\ plug \: y = 194 \: \: and \: \: x = - 13 \: in \: (1) \\ \therefore \: - 13 \times 194= k \\ \therefore \: k = - 2522 \\ substituting \: k = - 2522 \: in \: (1) \\ xy = - 2522...(2) \\ this \: is \: equation \: of \: variation. \\ plug \: x = 50 \: in \: (2) \\ 50 \times y = - 2522 \\ \therefore \:y = \frac{ - 2522}{50} \\ \huge \red{ \boxed{\therefore \:y = - 50.44}}$

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3 years ago

NEED HELP What is 1.43 x 10^5

Ksenya-84 [330]

Answer:

14,300

Step-by-step explanation:

move the decimal 5 places to the right.

1.43 x 10^5= 14,300

8 0

3 years ago

Read 2 more answers

Can someone help me pls

FrozenT [24]

There are 4 lateral faces that are triangles. Each triangle is: A = $\frac{b x h}{2}$
A = $\frac{16 x 22}{2}$
   = 176

There is one base that is a square. A = L x W
A = 16 x 16
   = 256

Surface area = 256 + 4(176)
                     = 256 + 704
                     = 960

Answer: B

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3 years ago

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Suppose one person sends a letter to seven people, and the following week those seven people send a letter to seven other people

klio [65]

I'm pretty sure it's 35

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3 years ago