3 years ago

TWENTY POINTS IF ANSWERED CORRECTLY!!

Mathematics

2 answers:

frez [133]3 years ago

8 0

1 a) SAS
b)AAA /AA
c) RHS
d) AAS

if you want to know how, comment ! or you can be good at answers !

lions [1.4K]3 years ago

3 0

The first one is congruent because it is just turned 120degrees

You might be interested in

Why is 1/2 the same as 0.5

Basile [38]

Answer:

it’s because 0.50 is half of 100 and 1/2 is a reduced fraction of 50/100.

Step-by-step explanation:

5 0

2 years ago

Find the derivative of the function at P 0 in the direction of A. f(x,y,z) = 3 e^x cos(yz), P0 (0, 0, 0), A = - i + 2 j + 3k

Alik [6]

The derivative of $f(x,y,z)$ at a point $p_0=(x_0,y_0,z_0)$ in the direction of a vector $\vec a=a_x\,\vec\imath+a_y\,\vec\jmath+a_z\,\vec k$ is

$\nabla f(x_0,y_0,z_0)\cdot\dfrac{\vec a}{\|\vec a\|}$

We have

$f(x,y,z)=3e^x\cos(yz)\implies\nabla f(x,y,z)=3e^x\cos(yz)\,\vec\imath-3ze^x\sin(yz)\,\vec\jmath-3ye^x\sin(yz)\,\vec k$

and

$\vec a=-\vec\imath+2\,\vec\jmath+3\,\vec k\implies\|\vec a\|=\sqrt{(-1)^2+2^2+3^2}=\sqrt{14}$

Then the derivative at $p_0$ in the direction of $\vec a$ is

$3\,\vec\imath\cdot\dfrac{-\vec\imath+2\,\vec\jmath+3\,\vec k}{\sqrt{14}}=-\dfrac3{\sqrt{14}}$

3 0

4 years ago

Which of the following is not a fraction equivalent to 3/4 ?

Romashka-Z-Leto [24]

B. 12/18
Upon simplifying this fraction (taking a 3 out of the numerator and denominator), you end with 4/6

5 0

3 years ago

Siddique is making a wedding cake. He needs 2.5 kg of flour. Each bag of flour weighs 500g. How many bags will he need to buy?

umka21 [38]

Answer:

You need to buy 5 bags of flour

Step-by-step explanation:

Each bag is 500g and needs 2.5kg.

If we replace 2.5kg it goes to 2500g.

2500g / 500g = 5 bags

7 0

3 years ago

the width of a rectangle is 6 units less than the the length. The area of a rectangle is 7 units. What is the length of the rect

diamong [38]

Answer:

Length: 7 units

Width: 1 unit

Step-by-step explanation:

8 0

3 years ago