3 years ago

What’s the area of the triangle?

Mathematics

2 answers:

arsen [322]3 years ago

7 0

Answer:

135

Step-by-step explanation:

A=1/2(b•h) so,

18x15=270

270/2 =135

castortr0y [4]3 years ago

6 0

135 is the answer loll

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How did you determine the number of cups needed to make a stack 50 cm in height?

Katena32 [7]

Answer:

the number of cups is kept within other till the cups reach reach 50cm

x=number of cups

y= height of the cups when placed on each other

so the equation would be ; x + y=50

Step-by-step explanation:

mark brainliest

6 0

3 years ago

Differentiating a Logarithmic Function in Exercise, find the derivative of the function. See Examples 1, 2, 3, and 4.

natulia [17]

Answer:

$g'(x)=\frac{2e^x-e^{-\frac{x}{2}}}{2(e^x+e^{-\frac{x}{2}})}$

Step-by-step explanation:

We are given that a function

$g(x)=ln(e^x+e^{-\frac{x}{2}})$

We have to find the derivative of function

Differentiate w.r.t x

$g'(x)=\frac{1}{e^x+e^{-\frac{x}{2}}}\times (e^x+e^{-\frac{x}{2}}\times (-\frac{1}{2}))$

By using formula

$\frac{d(lnx)}{dx}=\frac{1}{x}$

$\frac{d e^x}{dx}=e^x$

$g'(x)=\frac{e^x-\frac{e^{-\frac{x}{2}}}{2}}{e^x+e^{-\frac{x}{2}}}$

Hence, the derivative function

$g'(x)=\frac{2e^x-e^{-\frac{x}{2}}}{2(e^x+e^{-\frac{x}{2}})}$

3 0

4 years ago

X/3≤−6 solve for x. x≤−18 x≤−2 x≥−18 x≥−2

olga nikolaevna [1]

The first is the right one

4 0

4 years ago

Four pipes can fill a tank in 70 minutes.how long will it take to fill the tank with 7 pipes are used

mina [271]

Set it up like a ratio: pipes on the top and minutes on the bottom. Therefore, your ratio would be 4/70 = 7/x. Cross-multiply to get 4x=490 and x = 122.5 minutes. Change that to hours if you'd like by dividing by 60!

7 0

3 years ago

Andrea put 2 quarts of water and 1 cup of lemon juice in a pitcher how many total cups of liquids are in the pitcher

stepan [7]

Answer:

9 cups

Step-by-step explanation:

4 cups are in a quart

Andrea put 2 quarts of water in

4 + 4 is 8

She also added 1 cup of lemon juice.

8 + 1 is 9

So, 9 is your answer.

3 0

2 years ago