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3 years ago

PLEASE SOMEONE HELP IM SO CLOSE TO BEING DONE FOR THE YEAR NO LINKS OR FILES

Mathematics

1 answer:

8_murik_8 [283]3 years ago

6 0

Answer:

Step-by-step explanation:

The negative out front only tells us which way the parabola will open. That means that the first one will open upside down, since it's got a negative out front. The value of the number that serves as the leading coefficient (the number stuck to the x-squared) determines how steep or wide-open the parabola's shape is. The leading coefficient in the first one is a 1, so it opens up exactly as wide as its parent graph does. The leading coefficient in the second one, a 2, means that the parabola will be skinnier or narrower than its parent. If the leading coefficient is greater than 1, the parabola will be narrower than its parent; if the leading coefficient is greater than 0 but less than 1, the parabola will open wider than its parent.

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Find the solution of this system of equations:

Evgen [1.6K]

Answer:

y=-3.667

Step-by-step explanation:

-4(10y-59)+10y=86

30y+196=86

30y=-110

y=-3.667

6 0

4 years ago

8 x 2/5 in simplest form

GalinKa [24]

Answer:

3 1/5

Step-by-step explanation:

8/1 = 8

8/1 * 2/5 = 16/5

16/5 = 3 1/5

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3 years ago

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Find the zeros of the function. Write the smaller solution first, and the larger solution second. g(x)=-10x^2 +490

olya-2409 [2.1K]

Answer:

x1= -7

x2=7

Step-by-step explanation:

To find the zeros of a polynomial function, you need to factorize it into multiple monomials or simply use a formula. Most questions want you to factorize the function, so I will solve this by factorization

g(x)=-10x^2 +490

0= -10x^2 +490 ----> we looking for zeroes, so g(x)=0

-10(x^2 - 49)=0 ---> divide -10 from both number

x^2 - 49 =0 ---> divide both side by -10, notice that 49 is 7^2

(x+7)(x-7)=0 ---> x^2 - y^2 = (x+y) (x-y)

x+7 = 0

x= -7

x-7=0

x= 7

3 0

4 years ago

A man is building a gazebo and plans to use for the floor two boards that are 8 and three fourths feet , four boards that are 1

MakcuM [25]

Answer:

The total number of feet in all the boards is 90 and 5/6 feet

Step-by-step explanation:

First, it is necessary to transform the mixed number into a fraction. This can be made following the next rule:

$a\frac{b}{c} = \frac{(a*c) + b}{c}$

So, the number 8 and three fourth feet is equal to:

$8\frac{3}{4} = \frac{(8*4) + 3}{4} = \frac{35}{3}$

That means that we two boards that are 35/3 feet. So, multiplying 2 by 35/3 we get the total feets for the first type of board. That is:

$2*\frac{35}{3} = \frac{2*35}{3} =\frac{70}{3}$

At the same way, we can calculate the total number of feet for the second and third type of board as:

Four boards that are 13 and five eighths feet:

$13\frac{5}{8} = \frac{(13*8) + 5}{8} = \frac{109}{8}$

$4*\frac{109}{8} = \frac{4*109}{8} =\frac{109}{2}$

Two boards that are 6 one half feet:

$6\frac{1}{2} = \frac{(6*2) + 1}{2} = \frac{13}{2}$

$2*\frac{13}{2} = \frac{2*13}{2} =13$

Finally, to find the total number of feet in all the boards, we need to sum the total number of feet for every type as:

$\frac{70}{3} +\frac{109}{2} +\frac{13}{1} =\frac{545}{6}$

Converting this number to a mixed number we get:

$\frac{545}{6} =90\frac{5}{6}$

Because, when we divide 545 by 6, we get 90 as a quotient, 5 is the remainder and 6 is the divisor.

3 0

3 years ago

Please please please help me asap! I need to get this done!!!

Novosadov [1.4K]

Answer:

Step-by-step explanation:

If you multiply something that is a negative number by something that is positive, in this case, the power of 2, then the answer will still be negative. So -5 ^ 2 is negative 25. When you calculate the power of a negative number, then the result depends on the power of the number, so if it's a positive 2 then the answer will be positive.

7 0

3 years ago

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