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3 years ago

PLEASE HELP I NEED THE ANSWER IN 5 MINS GIVING BRANLY OUT (ANSWER ALL OF THEM FOR BRANLYEST)

Mathematics

1 answer:

ycow [4]3 years ago

7 0

Answer:

Step-by-step explanation:

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TanA+tanB+tanAtanB=1 If A+B=45 degree

djyliett [7]

Answer:

See below

Step-by-step explanation:

$\tan A+\tan B + \tan A.\tan B = 1\\\\ \implies \: \tan A + \tan B = 1 - \tan A.\tan B \\ \\ \implies \: \frac{\tan A + \tan B}{ 1 - \tan A.\tan B } = 1\\ \\ \implies \: \tan (A + B) = 1 \\ \\ \implies \: \tan (A + B) =\tan 45 \degree \\ \\ \implies \: A + B = 45 \degree \\ \\ thus \: proved$

8 0

3 years ago

F(x) = 4; find f(-5) and f(0.4)

gizmo_the_mogwai [7]

Answer:

f(-5)=-5

f(0.4)=0.4

Step-by-step explanation:

Fill in -5 and 0.4 for x in f(x)

6 0

4 years ago

Least common multiple of 30 25 4

White raven [17]

Answer:

The least common multiple of 30, 25, 4 is 150.

Step-by-step explanation:

The given numbers are 30, 25 and 4.

The factors of given numbers are

$30=2\times 3\times 5$

$30=5\times 5$

$4=2\times 2$

The L.C.M of given numbers is a smallest number that divides the given numbers completely.

$L.C.M.=\frac{2\times 3\times 5\times 5\times 5\times 2\times 2}{5\times 2}$

$L.C.M.=2\times 3\times 5\times 5\times 2=150$

Therefore the least common multiple of 30, 25, 4 is 150.

5 0

4 years ago

Claire owns a local bakery and sells boxes of muffins. Each box contains 6 muffins. If she sells 7 boxes of muffins by closing t

Mkey [24]

Answer: Claire made 42 muffins by closing time

Step-by-step explanation:

Pretty simple math just multiply 6 muffins by 7 boxes and you get your answer.

6 0

3 years ago

lauren drove her car 240 miles on 10 gallons of gasoline. At this rate, about how many gallons will she have use on a 1,200 mile

kirill [66]

Sorry I can’t explain this very well but it would be 50 because the rate is 240:10, 240x5= 1,200, so 10x5 would get you the gallons of gasoline she uses.

8 0

3 years ago