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3 years ago

5. Find the area of a triangle with sides a = 5, b = 8, and c = 11.

Mathematics

1 answer:

earnstyle [38]3 years ago

4 0

Um i think that the answer is c.12.46

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Find the measure of b. A. 80 B. 70 C. 40 D. 20

BlackZzzverrR [31]

Answer:

40°

Step-by-step explanation:

e = 20°

d = 20°

c = 140°

b = 40°

8 0

4 years ago

What are the coordinates of the point LaTeX: \frac{3}{4}\:3 4of the way from A to B? coordinate plane with line segment AB. Poin

egoroff_w [7]

Answer: $\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$ .

Step-by-step explanation:

It is given that Point A is at (-5, -4) and point B at (-3, 3).

We need to find the coordinates of the point which is 3/4 of the way from A to B.

Let the required point be P.

$AP:AB=3:4$

$AP:PB=AP:(AB-AP)=3:(4-1)=3:1$

It means, point P divides segment AB in 3:1.

Section formula: If a point divides a line segment in m:n, then

$\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)$

Using section formula, we get

$P=\left(\dfrac{3(-3)+1(-5)}{3+1},\dfrac{3(3)+1(-4)}{3+1}\right)$

$P=\left(\dfrac{-9-5}{4},\dfrac{9-4}{4}\right)$

$P=\left(\dfrac{-14}{4},\dfrac{5}{4}\right)$

$P=\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$

Therefore, the required point is $\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$ .

6 0

4 years ago

4. Which relation is a function?

postnew [5]

<u>Answer:</u>

The last option choice [(1,3), (2,6), (3,9), (4,12)

<u>Step-by-step explanation:</u>

The key idea to understand in a function/relation is that each input can only have one output. Inputs are your x-variables and outputs are your y-variables.

In the first relation, you see the two points (3,4) and (3,5). 3 is your input [since its x] , however, it gives you two outputs [y's], 4 and 5. So you can cross out the first option.

In the second relation, look at the points (3,4) and (3,3). Again, both have the same input 3, but different outputs, 4 and 3. So you can cross out the second option.

In the third relation, look at all of the points. They all share a common input, 1, but different outputs, 2, 3, 4, and 5. So you can cross out the third option too.

Lastly, look at the last relation. They all have different inputs but the key thing to look at here is that each input only has one corresponding output. Thus, this is the right answer.

I hope this helps!

8 0

3 years ago

Please help! Thank you!

Ivan

Answer:

Its A

Step-by-step explanation:

8 0

3 years ago

If a number is multiplied by 4 it gives the same result as 2/7 of 504 what is the number

NNADVOKAT [17]

507/7*2=144.86/4=36.21

5 0

4 years ago