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rosijanka [135]

4 years ago

13

Which parabola will have one real solution with the line y = x – 5?

2 answers:

8_murik_8 [283]4 years ago

5 0

D

Step-by-step explanation:

The answer

stealth61 [152]4 years ago

4 0

<span>The answer is 'D'. Method: substitute y with x-5 in each of the equations for solving simultaneously. We get a quadratic equation of the form Ax2 +Bx+ C = 0. It has only one real solution if B2-4AC = 0. This holds true only with the last option where after substitution of y we get x2+6x+9 = 0. B2-4AC =36-4*9=0. So the parabola y= x2 +7x +4 has one real solution with the line y = x- 5. The solution point is (-3,-8).</span>

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They have a rectangle ABCD as shown below, where AB = 24cm BC = 10cm and AE = 13cm

elena-s [515]

Answer:

big pp is answer ok big pp is good hehe

7 0

3 years ago

Ashley says that 5/10×100 equals 500, thousands is she correct use a place value chart to explain your answer

adelina 88 [10]

Ashley is wrong. I have no clue what a placement chart is but I'll solve it anyway.

(5/10)x100 = (5x100)/10 = 500/10 = 50

4 0

3 years ago

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 4860 square feet. The width of the base

levacccp [35]

Answer:

The length of Louise’s basement is <u>90 feet</u>.

Step-by-step explanation:

Given:

Louis wants to carpet the rectangular floor of his basement.

The basement has an area of 4860 square feet.

The width of the basement is 3/5 it’s length.

Now, to find the length of Louise’s basement.

Let the length of basement be $x.$

So, the width is:

$\frac{3}{5}\ of\ x\\=\frac{3}{5}\times x\\=\frac{3x}{5}$

Area of the basement = 4860 square feet.

Now, to get the width of basement we put formula:

$Area=length\times width$

$4860=x\times \frac{3x}{5}$

$4860=\frac{3x^2}{5}$

<em>Multiplying both sides by 5 we get:</em>

$24300=3x^2$

<em>Dividing both sides by 3 we get:</em>

$8100=x^2$

<em>Using square root on both sides we get:</em>

$90=x$

$x=90\ feet.$

Therefore, the length of Louise’s basement is 90 feet.

5 0

4 years ago

I NEED HELP ASAPPPP‼️‼️‼️

Anni [7]

Answer:

40 degrees

Step-by-step explanation:

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8 0

4 years ago

Read 2 more answers

1 7/11 divided 2 1/2 <br> Show work if you can :)

Dmitry_Shevchenko [17]

You can say 1 and 7/11 is 18/11 and 2 and 1/2 is 5/2 so :
18/11 ÷ 5/2 so 18/11 * 2/5 = 36/55 = 0.654 :)))
i hope this is helpful
have a nice day

6 0

4 years ago

Read 2 more answers