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4 years ago

I need help on this problem

Mathematics

1 answer:

jeyben [28]4 years ago

3 0

The answer is choice D) Perpendicular from a point not on the line.

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What is the length of EF in the right triangle below?

Vinil7 [7]

Your question does not give enough information for me to answer

8 0

3 years ago

X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?

Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

$x+y = 152\\8.5x+12y=1656$

From equation 1:

$x = 152-y$

Putting the value of y in equation 2

$8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104$

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

$x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48$

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0

3 years ago

What does this equal? 3(x+5)=7-x

True [87]

3(x+5)=7-x3x+15=7-x4x=-8x=-2

3 0

3 years ago

Read 2 more answers

Which of the following equations represents a parabola that reaches its minimum value at (- 2, - 3)?

nlexa [21]

Yay me following equations

7 0

3 years ago

Hello, I need some assistance with this homework question, please? This is for my precalculus homework. Q5

snow_tiger [21]

Answer:

$T\text{he domain of H\lparen x\rparen is }\lbrace x\lvert x-3,1\rbrace$

Step-by-step explanation:

The domain of a function is all the set of possible x-values that the function can take. Then, for the given function:

$H\left(x\right)=\frac{-7x^2}{\left(x-1\right)\left(x+3\right)}$

The function is undefined when the denominator is equal to 0, then equalize each factor of the denominator to 0:

$\begin{gathered} x-1=0 \\ x=1 \\ \\ x+3=0 \\ x=-3 \\ \\ \text{ Then, the domain of H\lparen x\rparen is }\lbrace x\lvert x\ne-3,1\rbrace \end{gathered}$

4 0

1 year ago