Ask question

Ask question

All categories

3 years ago

8

What is the area of the triangle

1 answer:

sasho [114]3 years ago

8 0

Answer:

20in

Step-by-step explanation:

You might be interested in

(2 marks) Ten persons will stand in a line. 3 males and 7 females. In how many ways they may be arranged according to gender?

Blababa [14]

Answer:

In 1 ways they may be arranged the line

4 0

2 years ago

Can you help thank youu!! will mark the first answer!!

ELEN [110]

Answer:

0.3× $10^{5}$

Step-by-step explanation:

0.3× $10^{5}$ =30000

8 0

2 years ago

Read 2 more answers

Which tiles should be added to the model below to make zero?

Blizzard [7]

Answer:

6 positive tiles

Step-by-step explanation:

6-6 is zero

7 0

3 years ago

X squared+ y squared = 2 y = 2x squared – 3 Which of the following describes the system?

cluponka [151]

Answer:

$x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}}$ and $y=-1,\frac{1}{2}$

The ordered pair solutions are $(-\sqrt{\frac{7}{4}},0.5)$ , $(\sqrt{\frac{7}{4}},0.5)$ , $(-1,-1)$ , and $(1,-1)$ .

Step-by-step explanation:

I'm assuming the system is $\left \{ {x^2+y^2=2} \atop {y=2x^2-3}} \right.$ :

$x^2+y^2=2$

$x^2+(2x^2-3)^2=2$

$x^2+(4x^4-12x^2+9)=2$

$x^2+4x^4-12x^2+9=2$

$4x^4-11x^2+9=2$

$4x^4-11x^2+7=0$

$x^4-11x^2+28=0$

$(x^2-7)(x^2-4)=0$

$(4x^2-7)(x^2-1)=0$

$4x^2-7=0$

$4x^2=7$

$x^2=\frac{7}{4}$

$x=\pm\sqrt{\frac{7}{4}}$

$x^2-1=0$

$x^2=1$

$x=\pm1$

$y=2x^2-3$

$y=2(\pm\sqrt{\frac{7}{4}})^2-3$

$y=2({\frac{7}{4}})-3$

$y=\frac{7}{2}-3$

$y=\frac{1}{2}$

$y=2x^2-3$

$y=2(\pm1)^2-3$

$y=2(1)-3$

$y=2-3$

$y=-1$

Therefore, $x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}}$ and $y=-1,\frac{1}{2}$

The ordered pair solutions are $(-\sqrt{\frac{7}{4}},0.5)$ , $(\sqrt{\frac{7}{4}},0.5)$ , $(-1,-1)$ , and $(1,-1)$ .

4 0

2 years ago

Larry, Mary, and Terry each had a full glass of juice. Larry drank 3/4 of his. Mary drank 3/8 of hers. Terry drank 7/10 of his.

KiRa [710]

Answer is Mary because
8/8 is a whole
4/8 is a half
3/8 is less than 1/2

3 0

3 years ago

Read 2 more answers