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Anestetic [448]
3 years ago
10

Can someone pleaseeee help and if you’re correct i’ll give brainliest

Mathematics
1 answer:
balandron [24]3 years ago
8 0

Answer:

the first one

Step-by-step explanation:

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6(x + y) + 11 – 5 answer and which property u use to solve it
ZanzabumX [31]
6x+6y+6 distributive property
7 0
4 years ago
Find the polar equation of the conic with the focus at the pole, directrix y = -6, and eccentricity 4
expeople1 [14]

Answer:

Choice B is correct

Step-by-step explanation:

The eccentricity of the conic section is given as 4 and thus the conic section is a hyperbola. Hyperbolas are the only conic sections with an eccentricity greater than 1.

Next, the directrix of this hyperbola is located at y = -6 implying that the hyperbola will be opening upwards. Consequently, the polar equation of this hyperbola will be of the form;

r=\frac{k}{1-4sin(theta)}

The value of k in the numerator is the product of eccentricity and the absolute value of the directrix;

k= 4*6 = 24

The polar equation is thus given by alternative B

3 0
3 years ago
1.) In a department store, a $120 belt is marked 25% off.
lawyer [7]

Answer:

$30

$90

Step-by-step explanation:

Given parameters:

    Selling price of belt = $120

     Percentage discount = 25%

Unknown:

Discount = ?

Sale price of the dress  = ?

Solution:

Discount is a reduction in the price of a commodity.

     Discount  = percentage discount x selling price of belt

 Input the parameters and solve;

I.    Discount  = \frac{25}{100} x 120 = $30

 

II. Sale price of the dress;

               = selling price - discount amount

                 = $120 - $30

                  = $90

3 0
3 years ago
There are approximately 7.5×10^18 grains of sand on earth. There are approximately 7×10^27 atoms in a average human body. Are th
grandymaker [24]
There are more atoms in average human body than grains of sand on Earth. We can know it because we can see that atoms' number (7 * 10^27) is being multiplied by much greater number (with 9 zeros more) than grain's number (7.5 * 10^18).
4 0
3 years ago
The additive universe of -7<br> 19​
Otrada [13]

Answer:

\dfrac{7}{19}.

Step-by-step explanation:

Note: The number is not in proper form. Consider the given number is -\dfrac{7}{19}.

If a number is added to another number and we get zero, then the added number is known as additive inverse.

Let a be a number, then

a+(-a)=a-a=0

So, -a is the additive inverse of a. It means, additive inverse is the same number with opposite sign.

Consider the given number is -\dfrac{7}{19}.

-\dfrac{7}{19}+\dfrac{7}{19}=0

Therefore, the additive inverse of -\dfrac{7}{19} is \dfrac{7}{19}.

3 0
3 years ago
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