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3 years ago

PLZ help me!!! will mark brainlyest!! what is the slope intercept form of a linear equation?

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

Answer:

y= mx+b

Step-by-step explanation:

m is the slope

b is the y intercept

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Can anyone help me to understand how u add,subtract,multiply and divide fractions like explain how u do it using an example:) Pl

kotykmax [81]

Adding fractions:
Lets say you have two fractions like 1/2 and 1/3. To add them, you have to make the denominator the same. So we find the least common multiple of 2 and 3, which is 6, so we multiple 1/2 by 3/3 so we have 3/6 without changing the value, and we multiple 1/3 by 2/2 to have 2/6. Then we add the numerators and have 5/6.

Subtraction fractions:
Same thing as adding, just subtracting instead.
Both need to make sure you have the same denominator.

Multiplying fractions:
This is the most simple. All you do is multiply the numerators and the denominators. So if you have 5/6 and 3/4, you multiply the numerators to have 15, the denominators to have 24, and so you have 15/24, simplified to 5/8.

Dividing fractions:
If you have 5/6 divided by 3/4, you flip the 3/4 to 4/3, and you multiply that with 5/6.

4 0

3 years ago

Read 2 more answers

WILL REWARD!!! HELP

Nana76 [90]

2j+6a = 24

5j+3a =21

multiply the 2nd equation by -2

-10j -6a = -42

add the 1st and the modified 2nd together

2j+6a = 24

-10j -6a = -42

---------------------

-8j = -18

divide by -8

j = 2.25

substitute into

2j+6a = 24

2(2.25) +6a =24

4.50 +6a =24

subtract 4.5 from each side

6a = 19.50

divide by 6

a = 3.25

Answer:

jelly beans are 2.25 per pound

almonds are 3.25 per pound

6 0

3 years ago

Pls help me, I dont get the question. Polynomials

AnnZ [28]

The given polyn. is not in std. form. To answer this question, we need to perform the indicated operations (mult., addn., subtrn.) first and then arrange the terms of this poly in descending order by powers of x:

P(x) = x(160 - x) - (100x + 500)

When this work has been done, we get P(x) = 160x - x^2 - 100x - 500, or

P(x) = -x^2 + 60x - 500

So, you see, the last term is -500. This means that if x = 0, not only is there no profit, but the company is "in the hole" for $500.

6 0

3 years ago

weegy what is the estimated perimeter of an ellipse if the major axis has a length of 15 ft. and the minor axis has a length of

kipiarov [429]

By definition the perimeter of an ellipse is given by:
$P = 2 \pi \sqrt{ \frac{a^2+b^2}{2} }$
Where,
a: semimajor axis of the ellipse
b: minor semiaxis of the ellipse
Substituting values we have:
$P = 2 \pi \sqrt{ \frac{( \frac{15}{2} )^2+( \frac{7.5}{2} )^2}{2} }$
When doing the corresponding calculations, we have that the perimeter is given by:
$P = 37.254706
$
Round to the nearest tenth:
$P = 37.3 feet
$
Answer:
the estimated perimeter of the ellipse is:
$P = 37.3 feet$

3 0

4 years ago

We are going to fence in a rectangular field. If we look at the field from above the cost of the vertical sides are $10/f t, the

Brut [27]

Answer:

Dimensions are 350/9 ft and 17.5 ft

Step-by-step explanation:

We are given the cost per ft of all the 4 sides. Let the horizontal be x and the vertical be y.

Now, we will set up the constraint and equation that we are being asked to maximize.

Thus;

700 = 10y + 10y + 7x + 2x

700 = 20y + 9x

Maiking y the subject, we have;

y = (700 - 9x)/20

y = 35 - 9x/20

Now,area of a rectangle is: A = xy

Thus, A = x(35 - 9x/20))

A = 35x - 9x²/20

We can get the critical points by finding the derivatives and Equating to zero

Thus;

dA/dx = 35 - 0.9x

At dA/dx = 0,we have; x = 350/9

At d²A/dx², we have;

d²A/dx² = -0.9

This is negative, thus we will disregard and use the one gotten from the first derivative.

Thus, we will use x = 350/9 ft

Plugging this into the equation y = 35 - 9x/20, we have;

y = 35 - ((9 × 350/9)/20)

y = 17.5 ft

7 0

4 years ago