All categories

3 years ago

1+9x14+12=? please help fast

Mathematics

2 answers:

Molodets [167]3 years ago

7 0

Answer:

139

Step-by-step explanation:

Klio2033 [76]3 years ago

5 0

Answer:

139

Step-by-step explanation:

So we start with PEMDAS. (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.)

Since we don't have parenthesis or exponents, we can go straight to multiplication. 9 multiplied by 14 is 126.

Now we go to addition. 126+1=127

127+12=139

Hope I helped :)

~Sunflower UwU

You might be interested in

Please help me get this easy maths question I’m mentally unwell

marshall27 [118]

Speed = distance / time

Speed = ?
Distance = 350km
Time = 5 hours

350km / 5hours = 70

He averages 70km/h

8 0

3 years ago

I need help with this please

Volgvan

Answer: No she is not.

Step-by-step explanation: The correct answer is 7.25 F, because she just put them both as positives. When you have a negative it takes away from the total, so how I think of it is you subtract from the positive number, so you could just do 11.75-4.5. Hope this helped!

7 0

3 years ago

What is the square root of pi?

Karolina [17]

Answer:

1.7724538509

Step-by-step explanation:

I used a calculator

6 0

3 years ago

Answer the question in the picture

nekit [7.7K]

Recall the angle sum identities:

$\sin(x+y)=\sin x\cos y+\cos x\sin y$

$\cos(x+y)=\cos x\cos y-\sin x\sin y$

Now,

$\tan(x+y)=\dfrac{\sin(x+y)}{\cos(x+y)}=\dfrac{\sin x\cos y+\cos x\sin y}{\cos x\cos y-\sin x\sin y}$

Divide through numerator and denominator by $\cos x\cos y$ to get

$\tan(x+y)=\dfrac{\tan x+\tan y}{1-\tan x\tan y}$

Next, we use the fact that $x,y$ lie in the first quadrant to determine that

$\sin x=\dfrac12\implies\cos x=\sqrt{1-\sin^2x}=\dfrac{\sqrt3}2$

$\cos y=\dfrac{\sqrt2}2\implies\sin x=\sqrt{1-\cos^2x}=\dfrac1{\sqrt2}$

So we then have

$\tan x=\dfrac{\sin x}{\cos x}=\dfrac{\frac12}{\frac{\sqrt3}2}=\dfrac1{\sqrt3}$

$\tan y=\dfrac{\sin y}{\cos y}=\dfrac{\frac1{\sqrt2}}{\frac{\sqrt2}2}=1$

Finally,

$\tan(x+y)=\dfrac{\frac1{\sqrt3}+1}{1-\frac1{\sqrt3}}=\dfrac{1+\sqrt3}{\sqrt3-1}=2+\sqrt3\approx3.73$

4 0

3 years ago

Mirri is traveling in a group of 8 cat warriors. Each cat needs 4 liters of milk per day to maintain good morale. Mirri has a su

Dominik [7]

Answer:

Step-by-step explanation:

Let d represent the total number of days that the milk will last.

The total number of cat warriors travelling together is 8. Each cat needs 4 liters of milk per day to maintain good morale. This means that the 8 cat warriors would need

8 × 4 = 32 liters of milk.

Let n represent the total number of liters of milk available. Therefore, the total number of days the milk will last, d would be

d = n/32

Mirri has a supply of 96 liters of milk. Another cat has enough milk to last for 2 days. This means that the amount of milk that the cat has is 4 × 2 = 8 liters. Total amount of milk available would be

96 + 8 = 104 liters

Therefore

d = 104/32 = 3.25 days

3 0

2 years ago