3 years ago

Write -4 _ 7 as a decimal.

Mathematics

1 answer:

Aleksandr [31]3 years ago

5 0

This is super easy all you have to do is divide

-4/7

Which would be -0.57 or rounded 0.6

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Kazeer [188]

Answer: X= 0, Y=0
Explain: step by step

7 0

2 years ago

The function c=2.50(n-2)+1.50 represents the cost c in dollars of printing n invitations. Which of the following is not true?

Yuri [45]

Please put the selections. I can't tell you what isn't true if you don't.

6 0

3 years ago

Sqrt(2−7x) -sqrt(x 3) =3

Assoli18 [71]

$(a+b)^2=a^2+2ab+b^2 \\ \\ \sqrt{2-7x} - \sqrt{x+3} =3 \\ (\sqrt{2-7x})^2 =(3 + \sqrt{x+3})^2\\2-7x=9+6\sqrt{x+3}+x+3 \\ 2-7x-9-x-3=6\sqrt{x+3} \\ (-8x-10)^2=(6\sqrt{x+3})^2 \\64x^2+160x+100=36(x+3) \\ 64x^2+160x+100=36x+108\\ 64x^2+160x-36x+100-108=0 \\ 64x^2+`124x-8=0 \\ 4( 16x^{2} +31x-2)=0 \\$
$16x^{2} +31x-2=0 \\(x-2)(16x-1)=0 \\ x+2=0 \\ x=-2 \\ 16x-1=0 \\ x= \frac{1}{16}$

$\sqrt{2-7 \cdot\frac{1}{16} } - \sqrt{\frac{1}{16} +3} \neq 3 \\ x=-2$

6 0

3 years ago

In one day a 20 pound dog eats 3 cups of food. How much would a 50 pound dog eat

lisov135 [29]

Answer:

7 cups plus 3 Tablespoons.

Step-by-step explanation:

hope that work

4 0

3 years ago

Read 2 more answers

A circle has the equation x^2+y^2+x-6y+9=0. Find the center and any x or y intercepts.

Softa [21]

We know:x^2+y^2+x−6y+9=0So, we complete the square as such:x^2+y^2+x−6y+9=x^2+x+y^2−6y+9=(x+1/2)^2+(y−3)^2=(1/2)^2=1/4

5 0

3 years ago