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3 years ago

Could I have some help with this

Mathematics

2 answers:

True [87]3 years ago

6 0

Answer:

Step-by-step explanation:

if x = -8,

7x = 7 x (-8)

this would equal -56

so..

-52 - (-56)

= 4

and 4 divided by (2y or 2) would equal 2.

and -56 *7x* + 4 *2y* = -52

kotegsom [21]3 years ago

3 0

Answer:

y=-2

Step-by-step explanation:

7 (-8) - 2y = -52

-56 - 2y = -52

-2y=4

y=-2

You might be interested in

1+1= ?........................................

Brrunno [24]

Answer:

1+1=2 is the answer for this easy question

7 0

3 years ago

The cost of your new contact lenses is $200. If you left 25% deposit upon

Contact [7]

Answer: Remaining balance is $150

Step-by-step explanation:

Contact lens= $200

25% of the amount was paid

= 25/100 × 200 = $50

Out of $200 of contact lens, $50 was paid as deposit, subtract $200 from $50 to give balance.

$200 - $50 = $150

I hope this helps.

8 0

3 years ago

Suppose the time to process a loan application follows a uniform distribution over the range of 8 to 13 days. What is the probab

Arlecino [84]

Answer: 0.2

Step-by-step explanation:

We know that , the probability density function for uniform distribution is given buy :-

$f(x)=\dfrac{1}{b-a}$ , where x is uniformly distributed in interval [a,b].

Given : The time to process a loan application follows a uniform distribution over the range of 8 to 13 days.

Let x denotes the time to process a loan application.

So the probability distribution function of x for interval[8,13] will be :-

$f(x)=\dfrac{1}{13-8}=\dfrac{1}{5}$

Now , the probability that a randomly selected loan application takes longer than 12 days to process will be :-

$\int^{13}_{12}\ f(x)\ dx\\\\=\int^{13}_{12}\dfrac{1}{5}\ dx\\\\=\dfrac{1}{5}[x]^{13}_{12}\\\\=\dfrac{1}{5}(13-12)=\dfrac{1}{5}=0.2$

Hence, the probability that a randomly selected loan application takes longer than 12 days to process = 0.2

8 0

3 years ago

Please help me with this

rosijanka [135]

Answer:

If the equation represent the situation the variable x represents the total amount of money Han made from mowing lawns.

Step-by-step explanation:

x=23

96-27=69

69/3=23

Jada made a total amount of 69 dollars from babysitting so Han made $23.

Have a nice day!

and can I maybe have brainliest? Thanks!

4 0

3 years ago

Write an equation for an ellipse centered at the origin, which has foci at (\pm\sqrt{12},0)(± 12 ,0)left parenthesis, plus min

lora16 [44]

Answer:

$\mathbf{\dfrac{x^2}{49^2} +\dfrac{y^2}{37^2} =1}$

Step-by-step explanation:

Given that :

the foci of the ellipse is (±√12,0) and C0-vertices are (0,±√37)

The foci are (-C,0) and (C ,0)

the focus has x-coordinates so the focus is lie on x- axis.

The major axis also lie on x-axis

The minor axis lies on y-axis so C0-vertices are (0,±√37)

The given focus C = ae = √12

Given co-vertices ( minor axis) (0,±b) = (0,±√37)

b= √37

We can therefore express the relation between the focus and semi major axes and semi minor axes as:

$\mathbf{c^2 = a^2 - b^2 } \\ \\ \mathbf{a^2 = c^2 + b^2 } \\ \\ \mathbf{c^2 = ( \sqrt12)^2 - (\sqrt 37)^2 } \\ \\ \mathbf{c^2 = 49 } \\ \\ \mathbf{c = \sqrt{49 }}$

The equation of ellipse formula is:

$\dfrac{x^2}{a^2} +\dfrac{y^2}{b^2} =1$

and we know that $\mathbf{a=\sqrt{49} \ \ and \ \ b=\sqrt{37}}$

Thus ; the equation of the ellipse at the origin is

$\mathbf{\dfrac{x^2}{49^2} +\dfrac{y^2}{37^2} =1}$

3 0

4 years ago