Write an equation in which the quadratic expression 4x^2-4x-48 equals 0.

Answer: 20. A 21. C 22. B

Step-by-step explanation: image attached below for explanation

Answer:

y = 2x, y = 2x+2, y=2x+100, y=2x-57, etc.

Step-by-step explanation:

Any line with the same slope will be parallel.

Answer:

6x+18=73

Step-by-step explanation:

Rectangle area w*l

(x+3)*6=73

6x+18=73

Answer:

0 10

1 20

Step-by-step explanation:

0,0

1,20

2,40

3,50

4 60

Answer:

The x-intercept of the function is 4 which represents the total time of the trip, in hours.

Step-by-step explanation:

Since Skylar was a distance of 0 miles from City A after 4 hours, the x-intercept of 4 represents how many hours it took Skylar to drive from her house to City A.

Have a good day :)

The x- intercept is 4 hours.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δxwhere,m is the slope

Given:

D=120-30t.

According to slope - intercept form

y= mx+ b

where m is the slope and b is the y intercept.

So,  the x-intercept

0= 120- 30t

t= -120/ (-30)

t= 4

Hence, the x- intercept is 4 hours.

Learn more about slope here:

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Answer: 100 99/100

Step-by-step explanation: add the 1/2 and 1/5 together by finding a common denominator(10). 1/2 would become 5/10 and 1/5 would become 2/10. 2/10 + 5/10 =7/10. now we're left with (7/10)^2 +3/10 x 5

to do (7/10)^2 you square the top and bottom to give you 49/100.

next we'll do 3/10 x 5 which would equal 15/10. so now all we have left to do is add 49/100 and 15/10. to do this we'll find a common denominator of 100. so well multiply the top and bottom by 10 to give you 150/100.

finally, 49/100 + 150/100 = 199/100 or as a mixed number, 100 99/100

Answer:

1[tex]\frac{99}{100}[/tex]

Step-by-step explanation:

I would start by turning the parentheses fractions into one fraction.

You could do binomial multiplication and get [tex]a^{2} +2ab+b^{2}[/tex] but it might take longer.

So I would just turn them into one fraction by finding the common denominator.

The common denominator here is 10

[tex]\frac{1}{5} (\frac{2}{2} )=\frac{2}{10}[/tex]

[tex]\frac{1}{2} (\frac{5}{5} )=\frac{5}{10}[/tex]

Now add

[tex]\frac{2}{10} +\frac{5}{10} =\frac{7}{10}[/tex]

Now apply: [tex](\frac{a}{b} )^{2} =\frac{a^{2} }{b^{2} }[/tex]

[tex](\frac{7}{10} )^{2} =\frac{7^{2} }{10^{2} } =\frac{49}{100}[/tex]

Now, multiplying the other fraction we get [tex]\frac{3}{10} (5)=\frac{15}{10}[/tex]

Now turn this into a fraction with denominator 100 to add the two fractions

[tex]\frac{15}{10} (\frac{10}{10} )=\frac{150}{100}[/tex]

[tex]\frac{49}{100} +\frac{150}{100} =\frac{199}{100} =1\frac{99}{100}[/tex]

There is also another method to add or subtract fractions without multiplying to get a common denominator in case you are interested:

[tex]\frac{a}{b}[/tex]±[tex]\frac{c}{d}[/tex]=[tex]\frac{ad+bc}{bd}[/tex]

Answer: 35

Triangle sum theory tells us the internal angles of any triangle add up to 180. This means we can take each given angle from 180 to find the remaining angle.

Answer:

8x; x ≤ $23.75

Step-by-step explanation:

You have to buy 8 trains with 190 dollars. You can't use more money or have more trains.

8x ≤ 190

Divide by 8 on both sides.

x ≤ $23.75 per train

Your welcome!

Kayden Kohl

8th Grade Student

Answer:

$13/hr

esa es la respuesta

Answer:

$13/hr

Step-by-step explanation:

Without bonus gross income = $350 - $51 = $299

Hours combined = 6hr + 8hr + 9hr = 23hr

23hr = $299

$299 ÷ 23hr = $13

Hourly pay rate = $13

Answer:

20

Step-by-step explanation:

nah it might be 21

Obviously its 21 pfff

[tex]e−mc {}^{2} [/tex]

[tex]e - {c}^{2} m[/tex]

a) 50+b=180 (supplementary angles)

b=180-50

b=130

b) b= 43° { vertically opposite angle}

Answer: 10.2 mph

Step-by-step explanation:

total runtime of the bike trip: 4hrs, 42 mi total

12 hrs has her 122 mi from home

our rate can be found by taking the miles and dividing it by the hours:

122/12 = 10.2

Using decimal multipliers, it is found that the expression that can be used to determine the final cost of the game is given by:

In this problem:

Applying both multipliers, the expression is:

[tex]C = y(0.82)(1.08) = 0.8856y[/tex]

To learn more about decimal multipliers, you can take a look at https://brainly.com/question/19808269

A line can be drawn by joining the plot of the two given points

Reason:

Given points on the line are (-5, 3) and (-1, -1)

The slope, m, of the line is given as follows

[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

Therefore, we have;

[tex]Slope, \, m =\dfrac{-1 - 3}{-1 - (-5)} = \dfrac{-4}{4} = -1[/tex]

The equation of the line in point and slope form is therefore;

y - 3 = -1·(x - (-5) = -x - 5

In slope and intercept form, we have;

y = -x - 5 + 3 = -x - 2

Learn more here:

https://brainly.com/question/2088114

Answer:

do your self it is easy

Step-by-step explanation:

do your self it is easy

-2X + 2 + 5X + 8?​

-2(5) + 2 + 5(5) + 8

-10 + 2 + 25 + 8

25

Answer: 25

Answer:

The answer would be 25.

Step-by-step explanation:

If x=5, that means:

-2(5)+2+5(5)+8

-10+2+25+8

-8+25+8

-17+8

25

Therefore, the value would be 25.

Hope this helps!!

7,5 miles

Step-by-step explanation:

5/x = 38/57

38x = 5 × 57

38x = 285

x = 285/38

x = 7,5 miles

Answer:

the action of separating something into parts or the process of being separated.

"the division of the land into small fields"

Step-by-step explanation:

Hope this helps you if it does please mark brainliest

Step-by-step explanation:

the act of separating something into parts.

Answer:

Answer should be a.

Step-by-step explanation:

Answer: 3.3

Step-by-step explanation: pythagorean theorem.

first we'll do the bottom triangle. a^2 + b^2 = c^2

a=3 and b=4

(3)^2 + (4)^2 = 9 + 16 = 25 which = c^2

to find c from c^2, square root the c^2 value. in this case it's 25. the square root of 25 is 5.

5 is now the base of the rectangle

now we can do pythagorean theorem again. except we'll switch it so it's c^2 - b^2 =a^2

c=6 and b=5

(6)^2 - (5)^2 = 36 - 25 = 11 = a^2

to find a we'll square root 11 which is just [tex]\sqrt{11[/tex]. approx. 3.3 to the nearest tenth.

We can use the Pythagorean theorem to solve for x.

But first, we have to find the value of 'a' (as I labelled in the diagram below). We could actually do all this in one step if we set it up correctly.

so    x = √(6² - a²)

&     a² = 3² + 4²

⇒  x = √[6² - (3² + 4²)]

    x = √(11)   or ≈ 3.3167

Answer:

10

Step-by-step explanation:

Answer:

y = 4/7x - 1

Step-by-step explanation:

7y = 4x - 9

y = 4/7x - 9/7

3 = 4/7(7) + b

3 = 4 + b

b = -1

Step-by-step explanation:

I will help you if you follow me

Answer:

-50

Step-by-step explanation:

all you do is -5 times 10

Answer:

16k + 36

Step-by-step explanation:

4(4k + 9)

(multiply everything in the bracket by 4 because that's whats surrounding the bracket)

4k * 4 + 9 * 4

16k + 36

Area::

Answer:

34

Step-by-step explanation:

52-35 = 17

$17 divided by $0.50 = 34 texst messages