Which option shows cos Ø?

What other information do you need to prove the triangles congruent using SAS congruence?

Stella [2.4K]

Answer:

An angle degree and a side measure

Step-by-step explanation:

SAS means side angle side

so in order to prove that the triangles are congruent, you need to find out if one of the angle degree and a side measure are the same

7 0

3 years ago

Jaime en un joven que vive en puyo con su padre. A jaime le gusta cosechar chonta con su padre los sabados en la mañana jaime ha

xenn [34]

Answer:

$\large \boxed{\text{23 s}}$

Step-by-step explanation:

Jaime is at point A and wants to get across the river to Point B.

They must head upstream towards Point C.

1. Calculate the net speed across the river.

∆ABC is a right triangle, so

$\begin{array}{rcl}AB^{2} + BC^{2} & = & AC^{2} \\AB^{2} +10^{2} & = & 12^{2} \\AB^{2}+100& = & 144 \\AB^{2}& = & 44\\AB & = & \sqrt{44}\\& = & 2\sqrt{11}\\& \approx &\textbf{6.633 m/s}\\\end{array}$

2. Calculate the time to cross the river

$\text{Time} = \text{150 m} \times \dfrac{\text{1 s}}{\text{6.633 m}} \approx \textbf{23 s}\\\\\text{It will take $\large \boxed{\textbf{23 s}}$ to cross the river.}$

7 0

3 years ago

Mr Lim read 3 books in 2 hours. He took the same amount of time to read the first two books. He took 15 minutes longer to read t

Naya [18.7K]

He took 75 minutes to read the third book.

5 0

3 years ago

What is the domain of the function?Rotate the image to see it.

sergey [27]

Answer:

answer B is correct

Step-by-step explanation:

Hello,

this is not allowed to divide by 0 so we need to find the zeros of

$x^2+2x-15=0$

$x^2-3x+5x-15=0\\ x(x-3)+5(x-3)=0\\ (x+5)(x-3)=0\\ x=-5 \ \ or \ \ x=3$

we need x different from -5 and from 3

answer B is correct

hope this helps

5 0

4 years ago

Can someone help me with these problems? The majority of them I have answers but I don't understand them. Thanks!

Oliga [24]

Answer:

1. $\approx 10 \ cm^2$

2. $304.5 \ cm^2$

3. 1:3

4. 3:4

5. 10,000 pounds

6. 36 in

Step-by-step explanation:

1. What is the area of the triangle with a base of 5 1/2 cm and a height of 3 1/2 cm?

The area of the triangle can be calculated using formula

$A=\dfrac{1}{2}\times \text{Base}\times \text{Height}$

Given:

Base $=5\dfrac{1}{2}=\dfrac{11}{2}\ cm$

Height $=3\dfrac{1}{2}=\dfrac{7}{2}\ cm$

Hence,

$A=\dfrac{1}{2}\cdot \dfrac{11}{2}\cdot \dfrac{7}{2}\\ \\=\dfrac{77}{8}\\ \\=9.625 \ cm^2\approx 10\ cm^2$

2. What is the area of a parallelogram with a base of 14.5 m and a height of 21 m?

The area of the parallelogram can be calculated using formula

$A=\times \text{Base}\times \text{Height}$

Given:

Base $=14.5\ cm$

Height $=21\ cm$

Hence,

$A=14.5\cdot 21\\ \\=304.5 \ cm^2$

3. The cafeteria sold 200 grilled cheese sandwiches, 100 tacos, and 150 grilled chicken salads. What is the ratio in simplest terms of grilled chicken salads sold to the total number of lunches sold?

Cafeteria sold: