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3 years ago

11

Figure ABCD is reflected across the x-axis.

1 answer:

Katena32 [7]3 years ago

5 0

A. (4,-1)

B. (8,-5)

C. (4,-5)

D. (2,-4)

Hope this helps!

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yuriko ran three more than twice as many miles as Paul did yesterday Yuriko ran 7 miles yesterday let X represent the number of

Serga [27]

Answer: The number of miles Paul ran is 2 miles.

Step-by-step explanation:

Let the number of miles Paul ran be x

Since we have given that

Number of miles ran by Yurika = 7 miles

According to question, Yurika ran 3 more than twice as many miles as Paul did yesterday.

So, it becomes,

$2x+3=7\\\\2x=7-3\\\\2x=4\\\\x=\frac{4}{2}\\\\x=2\ miles$

Hence, the number of miles Paul ran is 2 miles.

3 0

3 years ago

Find the value of x and y

Fiesta28 [93]

Answer:

Answer: x = 33, y = 81..........

3 0

3 years ago

Read 2 more answers

I have no idea how to do this stuff.

kenny6666 [7]

Answer: $y=2x^{2}-5x+7$

Step-by-step explanation:

The quadratic equation in its standard form is:

$y=ax^{2}+bx+c$

Now, we are given 5 points of the parabola (if you graph a quadratic equation you will have a parabola), however we only need to choose three points to find the coeficients $a$ , $b$ and $c$ in the quadratic equation.

So, let's choose the first three points:

(-1,14):

$14=a(-1)^{2}+b(-1)+c$

$14=a-b+c$ (1)

(0,7):

$7=a(0)^{2}+b(0)+c$

$7=c$ (2)

(1,4):

$y=2x^{2}-5x+7$

$4=a(1)^{2}+b(1)+c$

$4=a+b+c$ (3)

Substituting (2) in (1) and (3):

$14=a-b+7$ (4)

$4=a+b+7$ (5)

At this point we have a system with two equations.

Adding (4) to (5):

$18=2a+14$ (6)

Isolating $a$ :

$a=2$ (7)

Substituitng (7) in (3):

$4=2+b+7$ (8)

Isolating $b$ :

$b=-5$ (9)

Now we have the three coeficients and we can write the quadratic equation:

$y=2x^{2}-5x+7$

8 0

4 years ago

What is the minimum width of the square base?

riadik2000 [5.3K]

4 I think I might be wrong so sorry if I am wrong

4 0

4 years ago

Solve for x: 4x - 8 = 7x - 2<br>Anyone know the answer for this one?<br>Thanks!

erastovalidia [21]

Answer:

$\huge{ \fbox{ \tt{x = - 2}}}$

Step-by-step explanation:

$\underline{ \underline{ \mathfrak{Let's \: solve}}} :$

$\star{ \sf{ \: \: 4x - 8 = 7x - 2}}$

$\text{Step \: 1} : \sf{Move \: 7x \: to \: left \: hand \: side \: and \: change \: its \: sign}$

$\mapsto{ \sf{4x - 7x - 8 = - 2}}$

$\text{Step \: 2} : \sf{Move \: 8 \: to \: right \: hand \: side \: and \: change \: its \: sign}$

$\mapsto{ \sf{4x - 7x = - 2 + 8}}$

$\text{Step \: 3} : \sf{Collect \: like \: terms}$

$\sf{Like \: terms \: are \: those \: which \: have \: same \: base}$

$\mapsto{ \sf{ - 3x = - 2 + 8}}$

$\text{Step \: 4} : \sf{Calculate}$

$\underline{ \text{Remember!}} : \sf{The \: negative \: and \: positive \: integers \: are \: always \: subtracted \: but \: posses \: the \: sign \: of \: the \: bigger \: integer.}$

$\mapsto{ \sf{ - 3x = 6}}$

$\text{Step \: 4} : \sf{Divide \: both \: sides \: by \: - 3}$

$\mapsto{ \sf{ \frac{ - 3x}{ - 3} = \frac{6}{ - 3}}}$

$\text{ Step \: 4} : \sf{Calculate}$

$\mapsto{ \sf{x = - 2}}$

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

3 0

3 years ago