3 years ago

What is the value of x?

Mathematics

1 answer:

pogonyaev3 years ago

4 0

Answer:

1 is the value of x

Step-by-step explanation:

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Find the equation of the line passing<br> through the points (4, 1) and (2, 9).<br> y = [? ]x + [ ]

loris [4]

Answer:

y=-4x+17

Step-by-step explanation:

Slope intercept form is $\frac{y2-y1}{x2-x1}$

$\frac{9-1}{2-4}$

$\frac{8}{-2}$

-4

y=-4x+b

plug in one of the points to find b, I chose (4,1)

1=-4(4)+b

1=-16+b

add 16 to both sides

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put it together and you get y=-4x+17

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3 years ago

The statement explains why the ordered pair is a solution to the system of equations.

vovikov84 [41]

It is false im like i year late lol. but i got a 100 on the test.

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3 years ago

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Teresa bought 3boxes of chocolate each box has 9 pieces of chocolate inside teresa gave away 15 pieces of chocolate how many pie

lora16 [44]

Hey There!

3×9=27
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3 years ago

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What are the partial products of 42times28

Lilit [14]

Answer:

Step-by-step explanation:

42 × 48

(40 + 2) × (40 + 8)

40 × (40 + 2) = (40 × 40) + (40 × 2) = 1600 + 80 = 1680

8 × (40 + 2) = (40 × 8) + (2 × 8) = 320 + 16 = 336

Then 1680 + 336 = 2016

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3 years ago

Let sintheta =2times square root 3/5 and pi/2

Gre4nikov [31]

Given:

$sin\theta=\frac{2\sqrt{3}}{5},\text{ and }\frac{\pi}{2}$

It's required to find cos 2θ.

We use the formula:

$cos(2\theta)=1-2sin^2\theta$

Substituting:

$cos(2\theta)=1-2(\frac{2\sqrt{3}}{5})^2$

Operating:

$\begin{gathered} cos(2\theta)=1-2*\frac{4*3}{25} \\ cos(2\theta)=1-\frac{24}{25} \\ cos(2\theta)=\frac{1}{25} \end{gathered}$

Answer: 1/25

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1 year ago

What is the value of x?​

What is the value of x?