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2 years ago

WILL MARK BRANLIEST PLEASE ANSWER Guys what is the perimeter? -PHOTO INCLUDED-

Mathematics

2 answers:

My name is Ann [436]2 years ago

5 0

Perimeter = 9+8+14
=31

Black_prince [1.1K]2 years ago

3 0

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

Perimeter of a triangle = sum of measures of each side ;

$\qquad \rightarrow \sf p = 9 \: ft + 8y + 14 \: ft$

$\qquad \rightarrow \sf p =23 \: ft + 8y$

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Explain how you got your answer please :

liraira [26]

X is the number of hours studied, so replace x with 3 in the equation:

y = 6.8(3) + 60
y = 20.4 + 60
y = 80.4

Round down to 80.

The answer would be A.

3 0

3 years ago

These figures are similar: angle R = ?

lesya692 [45]

It’s similar to D because they are going to have the same measured angle

5 0

3 years ago

What is the equation of the axis of symmetry for this function? H(x) = -X2 + 10x - 11 x = -5 0 x= -10 x = 5 x = 10

siniylev [52]

Given:

The equation of a quadratic function is:

$H(x)=-x^2+10x-11$

To find:

The equation of the axis of symmetry for the given function.

Solution:

If a quadratic function is $f(x)=ax^2+bx+c$ , then the equation of the axis of symmetry is:

$x=-\dfrac{b}{2a}$ ...(i)

We have,

$H(x)=-x^2+10x-11$

Here, $a=-1,b=10,c=-11$ . So, the equation of axis of symmetry by using (i), is

$x=-\dfrac{10}{2(-1)}$

$x=-\dfrac{10}{-2}$

$x=5$

Therefore, the correct option is C.

8 0

3 years ago

The essay lengths of 29 randomly sampled essays are used to estimate the mean of the population. What t-score should be used to

slavikrds [6]

Answer:

A t-score of 1.701 should be used to find the 95% confidence interval for the population mean

Step-by-step explanation:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 29 - 1 = 28

Now, we have to find a value of T, which is found looking at the t table, with 28 degrees of freedom(y-axis) and a confidence level of 0.95( $t_{95}$ ). So we have T = 1.701.

A t-score of 1.701 should be used to find the 95% confidence interval for the population mean

5 0

3 years ago

Which is the smallest number? 2.07,2.7,2.4,2,2.04

Natasha2012 [34]

I believe it is 2 because, 0.4 is added on to 2. 2.7 is basically 2.70 making it 0.70 bigger than 2. I hope this helped

6 0

3 years ago

*WILL MARK BRANLIEST PLEASE ANSWER* Guys what is the perimeter? -PHOTO INCLUDED-

WILL MARK BRANLIEST PLEASE ANSWER Guys what is the perimeter? -PHOTO INCLUDED-