3 years ago

What is the area of the triangle?

Mathematics

2 answers:

Leona [35]3 years ago

7 0

Answer:

Step-by-step explanation: you have to multiply 4 by 10 to get ur answer

Vadim26 [7]3 years ago

5 0

The answer is 160 I think

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Simplify the following expression. 7^-5/6.7^-7/6. 1/49 1/14 14 49

Serggg [28]

${7}^{ - \frac{5}{6} } \times {7}^{ - \frac{7}{6} } \\ = {7}^{ - \frac{5}{6} - \frac{7}{6} } \\ = {7}^{ - \frac{12}{6} } \\ = {7}^{ - 2} \\ = \frac{1}{ {7}^{2} } \\ = \frac{1}{49}$
The answer is 1/49

4 0

3 years ago

FIND PR.PLS HELP BRAINLIEST...

slega [8]

Answer:

6.2 units.

Step-by-step explanation:

We are given two angles and an opposite corresponding side. To solve for an unknown side, we can use the law of sines.

$\frac{8}{sin(90)}=\frac{x}{sin(180-39-90)}=\frac{x}{sin(51)}$

Cross multiplying and solving will get you this:

$x=\frac{8(sin(51))}{sin(90}$

Which can simplify to:

$x=8(sin(51))$

Which putting into a calculator gets you:

$x=6.2$

So the line PR is 6.2 units long.

6 0

3 years ago

Given the function f(x) =-2x^2 + 4x -7 find f(-4)

Kamila [148]

Correct the answer is -55

4 0

3 years ago

Assume that the following events are independent: • probability that a randomly selected person has red hair is 0.14 • probabili

erastovalidia [21]

I think the answer is C.

3 0

2 years ago

Read 2 more answers

How would I find the Max/min of this function f(x) = 2x squared +18x +16

slamgirl [31]

F(x)=2x²+18x+16
1) we have to calculate the first derived.

f´(x)=4x+18

2) Now, we equalize the first derived to "0" and find out the value of "x"
4x+18=0
4x=-18
x=-18/4=-4.5

3)we calculate the second derived
f´´(x)=4>0 ⇒we have a minimum at x=-4.5

4) Now we calculate the value of "y".
f(-4.5)=2(-4.5)²+18(-4.5)+16=40.5-81+16=-24.5

Therefore; Exist a minimum at (-4.5 , -24.5)

7 0

3 years ago