Solve using elimination.
X + 8y = 3
2x – 4y = -14

Answer:

[tex]x=-8[/tex]

Step-by-step explanation:

Let's say that the number is x. Hedi adds 5 to the number, then multiplies its sum by -2. The result is 6. Writing this out as an equation:

[tex]-2(x+5)=6[/tex]

So now we solve for x. First, we divide both sides by -2, giving us:

[tex]x+5 = -3[/tex]

Then, to finish the problem, we subtract 5 from both sides:

[tex]x=-8[/tex]

Thus, the number Hedi started with was -8

Hope this helps!

Answer:

4/9 or 0.4

Step-by-step explanation:

Answer:

4/9-1/5

=11/45

Step-by-step explanation:

Answer:

ratio is 5isto 4 byan action and drama

Answer: B and D

Step-by-step explanation:

i think

Answer:

The answer is c

Step-by-step explanation:

most likely c

Answer:

First question This parabola opens  to the right  so the standard form of the equation for this parabola is y^2 = 4px

for this question x=-2

2

0

2

for the third question The equation of the parabola is y^2 = 8x

Step-by-step explanation:

The equation for the parabola is y² = 4px, the equation of the directrix is x = -2, the focus is at (2, 0), and the value of p is 2.

It is defined as the graph of a quadratic function that has something bowl-shaped.

(x - h)² = 4a(y - k)

(h, k) is the vertex of the parabola:

a = √[(c-h)² + (d-k²]

(c, d) is the focus of the parabola:

It is given that:

From the graph the equation will be:

y² = 4px

The focus is (2, 0)

As the directrix is x = -2

The value of p = 2.

Thus, the equation for the parabola is y² = 4px, the equation of the directrix is x = -2, the focus is at (2, 0), and the value of p is 2.

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Answer:

It is the 3rd answer, 1/5³. I checked. Happy to help. Brainliest would be thanking.

Answer:

[tex]y = \frac{1}{2} x + \frac{5}{2} [/tex]

Step-by-step explanation:

hope this helps!

Step-by-step explanation:

To find the Slope of each line, pick two points you can clearly identify on each graph. The first graph has a point (-5,5) and (4,-5). Using these two points find the difference of the y coordinates divided by the difference in the x coordinates, like this:

5 - (-5). = 10

-5 - 4 = - 9

So the Slope is - 10/9

Same steps for all. Your equation is

(y1 - y2) / (x1 - x2)

Answer:

Finding the degree of a polynomial is really simple. All you have to do is find the largest exponent in the polynomial, so in this case, the degree is 5 (Yes, my previous answer is wrong) and not 26. I don't know how you got 26.

Another example: In 3x² - 8x⁷ + 6xy⁴, the degree is 7.

Step-by-step explanation:

Answer:

D. About 9.4 units

Step-by-step explanation:

[tex]ab = \sqrt{ {(9 - 4)}^{2} + {(10 - 2)}^{2} } \\ ab = \sqrt{ {(5)}^{2} + {(8)}^{2} } \\ ab = \sqrt{25 + 64} \\ ab = \sqrt{89} \\ ab = 9.43398 \: units[/tex]

Answer:

question 2 is plus 12

Step-by-step explanation:

Answer:

it would be answer 4 (+12) because you're gaining 12 yards

Answer:

93

Step-by-step explanation:

v=66×62/44=93

hope it helps

Hey there!

“66 / v = 44 / 62”

~ FIRST you have to CROSS MULTIPLY

66 • 62 = 44 • v

66 • 62 = 4,092

44 • v = 44v

➡️ 4,092 = 44v

~ SECOND TURN/FLIP your EQUATION

44v = 4,092

~ THIRD DIVIDE both SIDES by 44

44v / 44 = 4,092 / 44

CANCEL out: 44 / 44 because that gives you 1

KEEP: 4,092 / 44 because that gives you the v-value

FOURTH: SOLVING

4,092 / 44 = v ; v = 4,092 / 44

Solve the equation that’s in STEP FOUR and you have your v-value

Answer:

v = 93 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

1. yes, because they both have the same undefinite slopes. They are both vertical lines.

2. no, because their slopes are not negative reciprocals.

3. [tex]y=\frac{2}{3}x-6[/tex]

4. [tex]y=\frac{3}{2}x+5[/tex]

Step-by-step explanation:

In order to solve this problem, we can start by drawing a diagram of the paths Mia drew. (See attached picture the red lines are the original paths).

1. In order to determine if the paths are parallel or not, we need to first know what the slope of the paths is. The slope of the paths can be found by using the equation:

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

So, for path AB we get:

[tex]m_{AB}=\frac{6-2}{2-2}[/tex]

which yields:

[tex]m_{AB}=\frac{4}{0}[/tex]

Now, since we have a denominator of 0 in that friction, this means that the division is not defined for the real number, therefore, we are dealing with a vertical line.

for the path CD we get:

[tex]m_{CD}=\frac{2-6}{8-8}[/tex]

which yields:

[tex]m_{AB}=-\frac{4}{0}[/tex]

Now, since we have a denominator of 0 in that friction, this means that the division is not defined for the real number, therefore, we are dealing with a vertical line.

Therefore, since both slopes are the same, this means that the two lines will be parallel.

2. The procedure is the same as in the previous problem:

[tex]m_{AC}=\frac{6-2}{8-2}[/tex]

which yields:

[tex]m_{AC}=\frac{2}{3}[/tex]

for the path BD we get:

[tex]m_{BD}=\frac{2-6}{8-2}[/tex]

which yields:

[tex]m_{BD}=-\frac{2}{3}[/tex]

This two fractions are just opposite in sign. But for the lines to be perpendicular, their slopes should be negative reciprocal. In this case they are not reciprocal, so the lines are not perpendicular to each other.

3. For part 3, we know that for two lines to be parallel, their slopes must be the same. We already found the slope of AC to be:

[tex]m_{AC}=\frac{2}{3}[/tex]

we also know the line must go through the point (12,2), so we can use the point-slope form of the equation:

[tex]y-y_{1}=m(x-x_{1})[/tex]

so we can go ahead and substitute the pertinent data:

[tex]y-2=\frac{2}{3}(x-12)[/tex]

So now we can solve it for y so it gets the slope-intercept form, which is:

[tex]y=\frac{2}{3}x-6[/tex]

4. In this part of the problem, we will need to follow a similar process, but this time, we need the slope to be negative reciprocal to slope of the line BD.

[tex]m_{BD}=-\frac{2}{3}[/tex]

so:

[tex]m_{MN}=\frac{3}{2}[/tex]

so now we can build our equation with the point-intercept form and the given point so we get:

[tex]y-10=\frac{3}{2}(x-10)[/tex]

So now we can solve it for y so it gets the slope-intercept form, which is:

[tex]y=\frac{3}{2}x-5[/tex]

Answer:

the first equation, make the y as the subject. y = 3 + 5x, then substitute y in the second equation and you will get the value of x. then, substitute the x in the first equation (y = 3 + 5x)

plz mark me as brainly

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

9 - 3 = 6

6/ 1/3 = 2

2 + 1 = 3

Answer:

-10x +4

Step-by-step explanation:

Answer: They are both correct

Step-by-step explanation:

Jane saying 5 is a factor for every while number that has a 5 in the ones place is correct. For example, in the number 345 or 25, we can see that we have 5 in the ones place and 5 is a common factor for the numbers.

Also, Fred saying 5 is a factor for every while number that has a 0 in the ones place is correct as well. For example, the numbers 10, 20, and 200 all have 0 in their ones place and they have a factor of 5 as well.

Therefore, both of them are correct.

Answer:

-52

Step-by-step explanation:

I haven't learnt these types of things yet, just decided to give it a try.

Answer:

0 = 0

Step-by-step explanation:

Q= -3(x + 4)+5x = 3(-2x-4)+8x

first : -3 multiply both x and 4 and 3 multiply both -2x and -4

then : -3x-12+5x = -6x-12+8x

and then collect like terms ; -3x+5x -12= -6x+8x-12

= 2x -12 = 2x-12

finally, 2x-2x = -12+12

0 = 0

if it's helpful ❤❤

THANK YOU

Answer: 336 sq ft

Step-by-step explanation: what is it even asking?

Answer:

[tex]0 \le x \le 20[/tex]

Step-by-step explanation:

Given

[tex]60x + 80y = 1200[/tex]

Required

Determine the domain

[tex]60x + 80y = 1200[/tex]

First, solve for y

[tex]80y = 1200 - 60x[/tex]

Divide through by 80

[tex]\frac{80y}{80} = \frac{1200}{80} - \frac{60x}{80}[/tex]

[tex]y = \frac{1200}{80} - \frac{60x}{80}[/tex]

[tex]y = 15- 0.75x[/tex]

Given that x represents large cakes

The smallest number of cakes is 0.

To get the largest, we simply set y to 0 (to get the x intercept)

[tex]0 = 15- 0.75x[/tex]

[tex]-15 = - 0.75x[/tex]

Solve for x

[tex]x = \frac{-15}{-0.75}[/tex]

[tex]x = 20[/tex]

Hence, the domain is:

[tex]0 \le x \le 20[/tex]

Answer:

because the graphs of the two equations overlap each other

Step-by-step explanation:

when two graphs have the same line, the line overlaps so it looks like only one line. therefore, the answer is

C) because the graphs of the two equations overlap each other.

Answer:

7 hours and 30 minutes

Step-by-step explanation:

[tex]240 \div 4 = 60km \: per \: h[/tex]

[tex]450 \div 60 = 7.5 = 7h \: 30min[/tex]

It will take motor bike 7.5 hours to cover 450 Km of distance.

Speed of a body is defined as the distance travelled by it per unit time taken to cover the distance.

Mathematically-

S = Δd/Δt  or   S = {d(2) - d(1)}/{t(2) - t(1)}

It is a scalar quantity as it only has magnitude and no direction.

Given is a motor bike travels 240 km ins 4 hours.

We can calculate the speed of the bike as -

s = 240/4 = 60 Km/hr

Then, the time taken to cover 450 Km will be -

t = 450/60

t = 7.5 hours

Therefore, it will take motor bike 7.5 hours to cover 450 Km of distance.

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