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vagabundo [1.1K]

2 years ago

13

What is the equation of the line shown in this graph?

2 answers:

UNO [17]2 years ago

6 0

Answer:

y = -4x + 1

Step-by-step explanation:

→ First as the gradient is sloping downwards, we can eliminate 2 options

B and C

→ Then substitute x = 1 into $y=-\frac{1}{4}x+1$ and $y=-4x+1\\$ and see if you get 3 as the answer

y = -4x + 1

lara [203]2 years ago

3 0

The correct answer is a

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How to do 43 ?<br> Thank you!

ziro4ka [17]

$2 {x}^{3} - 5 {x}^{2} + x + 2 = 0$
$2 {x}^{3} - 4 {x}^{2} - {x}^{2} + 2x - x + 2 = 0$
$2 {x}^{2} (x - 2) - x(x - 2) - (x - 2) = 0$
$(x - 2)(2 {x}^{2} - x - 1) = 0$
$(x - 2)(2 {x}^{2} - 2x + x - 1) = 0$
$(x - 2)(x - 1)(2x + 1) = 0$
$x = 2$
$x = 1$
$x = - 0.5$

4 0

3 years ago

Write the equation of the line from the graph.

Ket [755]

Answer: x=-5

Step-by-step explanation:

Graph has no y intercept, thus has to be equal to x, and since its -5... x=-5 is your answer

7 0

2 years ago

Which elements in the same below are integers? -3,3.7,9,-7.34,2.83,5,56/7,-1

Bogdan [553]

Answer:

Integers -3, 9, 5, 56/7, -1

Step-by-step explanation:

Integers are whole numbers that can be positive or negative. They do not have decimals.

4 0

3 years ago

In a high school, 7% of the students play the piano. This is 21 students. Choose the expressions that complete each step involve

Gnesinka [82]

Hello,

<u>Set up a proportion</u> :

7 → 21

100 → ?

<u>Cross multiply</u> :

100 * 21 / 7 = 300 students

Bye :)

7 0

3 years ago

Find the limit of the function by using direct substitution.

serg [7]

Answer:

Option a.

$\lim_{x \to \frac{\pi}{2}}(3e)^{xcosx}=1$

Step-by-step explanation:

You have the following limit:

$\lim_{x \to \frac{\pi}{2}{(3e)^{xcosx}$

The method of direct substitution consists of substituting the value of $\frac{\pi}{2}$ in the function and simplifying the expression obtained.

We then use this method to solve the limit by doing $x=\frac{\pi}{2}$

Therefore:

$\lim_{x \to \frac{\pi}{2}}{(3e)^{xcosx} = \lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}cos(\frac{\pi}{2})}$

$cos(\frac{\pi}{2})=0\\$

By definition, any number raised to exponent 0 is equal to 1

So

$\lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}cos(\frac{\pi}{2})} = \lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}(0)}\\\\$

$\lim_{x\to \frac{\pi}{2}}{(3e)^{0}} = 1$

Finally

$\lim_{x \to \frac{\pi}{2}}(3e)^{xcosx}=1$

6 0

3 years ago