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Zina [86]
3 years ago
13

Please help me with this Question i could really use some help...

Mathematics
1 answer:
Law Incorporation [45]3 years ago
5 0
Notice your triangle, it has two 45° angle and a 90° one, thus is a 45-45-90

thus, check the picture below

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What is the measure of ∠CAB?
Pavlova-9 [17]
It's b=56............
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3 years ago
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THERE ARE 3 SANDWICHES, 3 SOUPS, 4 SALADS AND 2 DRINKS. IF EACH STUDENT HAD ONE OF EACH, HOW MANY DIFFERENT COMBINATIONS ARE POS
Maurinko [17]
All you have to do is multiply them all. 
3*3*4*2=72
4 0
4 years ago
For a certain bathtub, the hot water faucet can fill the tub in 12 minutes. The cold water faucet can fill the tub in 8 minutes.
Fofino [41]

If both faucets are used together, it time taken by them to fill the tub is 4.8 minutes.

<h3>What is the concept of time and work?</h3>

Time and work share a fundamental idea in common with other arithmetic topics, namely the idea of proportionality.

When the amount of work is constant, efficiency is inversely proportional to the length of time required.

Important Time and Work Formula:

  • Work Done = Time Taken × Rate of Work.
  • Rate of Work = 1 / Time Taken.
  • Time Taken = 1 / Rate of Work.
  • If a piece of work is done in x number of days, then the work done in one day = 1/x.
  • Total Wok Done = Number of Days × Efficiency.
  • Efficiency and Time are inversely proportional to each other.

Calculation for the time taken by both faucet to fill the tub.

The unit should be tub per minute.

Then, do the reciprocal of the result to have minute per tub.

The hot water faucet can fill the tub in 12 minutes.

The cold water faucet can fill the tub in 8 minutes.

The filling rate for both faucets filling the tub at the same time is the sum of their rates.

Let 't' be the time taken by both faucets.

Then,

\frac{1}{12} +\frac{1}{8} =\frac{1}{t}

\frac{8+12}{8*12} =\frac{1}{t}

\frac{1}{t} =\frac{20}{96}

\frac{t}{1} =\frac{96}{20}

t = 4.8

Therefore, the time taken by both faucets to fill the tub is 4.8 minutes.

To know more about the formula for calculating power, here

brainly.com/question/20290932

#SPJ4

3 0
2 years ago
A hairdresser is deciding where to open her own studio. If the hairdresser chooses Location A, she will pay $1200 per month in r
Ymorist [56]
She will need to cut 26.6 haircuts a month a location A to break even (1200/45 = 26.6) so roughly 27 haircuts to make a profit


She will need to cut 30 haircuts at location B to break even (1800/60 = 30) and 31 hair cuts to see a profit.


She will need to cut 30.67 haircuts at location A and 33 haircuts at location B to make the same profit at either location (Roughly $180).


30.67 x 45 = 1380.15 - 1200 = 180

33 x 60 = 1980 - 1800 = 180
7 0
3 years ago
Define sets and vectors
Afina-wow [57]

Answer:

set is a collection of distinct elements. vector is an element of a vector space.

Step-by-step explanation:

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