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Pachacha [2.7K]
2 years ago
14

Mario has 160 pizzas and is collecting two pizzas a week. Write the equation for the number of pizzas Mario has

Mathematics
2 answers:
Rufina [12.5K]2 years ago
7 0

Answer:

Mario has after 5 weeks 170 pizzas.

Step-by-step explanation:

Each time add to the chart 2 Pizzas and move a week.

mrs_skeptik [129]2 years ago
5 0

Answer:

160+2x

Step-by-step explanation:

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5. If z=10 find the value of Z3-3(2-10)​
avanturin [10]

Answer:

54

Step-by-step explanation:

BEDMAS

z=10

(10)3-3(2-10)

=(10)3-3(-8)

=30-(-24) *2 negatives = a positive

=30+24

=54

3 0
2 years ago
Item 3 The Hampton family used 17,158 kilowatts of electricity last year. They used about the same amount of electricity each we
katen-ka-za [31]
17,158/52= 329.96 rounded to the nearest tenth is 330
7 0
2 years ago
Write the polynomial in factored form as a product of linear factors f(r)=r^3-9r^2+17r-9
adelina 88 [10]

Answer:

  f(r) = (x -1)(x -4+√7)(x -4-√7)

Step-by-step explanation:

The signs of the terms are + - + -. There are 3 changes in sign, so Descartes' rule of signs tells you there are 3 or 1 positive real roots.

The rational roots, if any, will be factors of 9, the constant term. The sum of coefficients is 1 -9 +17 -9 = 0, so you know that r=1 is one solution to f(r) = 0. That means (r -1) is a factor of the function.

Using polynomial long division, synthetic division (2nd attachment), or other means, you can find the remaining quadratic factor to be r^2 -8r +9. The roots of this can be found by various means, including completing the square:

  r^2 -8r +9 = (r^2 -8r +16) +9 -16 = (r -4)^2 -7

This is zero when ...

  (r -4)^2 = 7

  r -4 = ±√7

  r = 4±√7

Now, we know the zeros are {1, 4+√7, 4-√7), so we can write the linear factorization as ...

  f(r) = (r -1)(r -4 -√7)(r -4 +√7)

_____

<em>Comment on the graph</em>

I like to find the roots of higher-degree polynomials using a graphing calculator. The red curve is the cubic. Its only rational root is r=1. By dividing the function by the known factor, we have a quadratic. The graphing calculator shows its vertex, so we know immediately what the vertex form of the quadratic factor is. The linear factors are easily found from that, as we show above. (This is the "other means" we used to find the quadratic roots.)

7 0
3 years ago
8 and 1/4 + 3 and 5/6
k0ka [10]

Answer:

12 1/12

Step-by-step explanation: so, we have to make the bottom number the same as eachother or we will not be able to add effectively. So the first number that both 4 and 6 go into is 12, as you can see if we count by the numbers to get to the answer

4,8,12

6,12

So, now that we have that part figured out we would then have to multiply the top the same amount as we multiplied the bottom. So 1/4x3 and 5/6x2

So we would multiply both the top and the bottom the same amount.

1/4x3=3/12

5/6x2=10/12

So now that we have that figured out everything else is pretty straight forward.

We would add the whole numbers with eachother and the fractions with eachother.

8+3=11

3/12+10/12=13/12


so we can see that it would equal, 11 and 13/12 or 12 and 1/12

8 0
2 years ago
HELPPPP NOWW
Effectus [21]

Answer:

Volume of a parallelogram is v=whl

Area of s parallelogram is A= bh

Circumference of a circle= rd

Area of a circle= rd^2

Area of a triangle is 1/a <em>bh</em>

Area of a trapezoid is 1/2(b1 + b2)h

Perimeter of a quadrilateral is 2L + 2W

I couldn't drag the image but I knew what I was doing!

8 0
3 years ago
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