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Allushta [10]
3 years ago
14

Which real world situation cannot be represented by X +8 equals X 2+4

Mathematics
1 answer:
AlekseyPX3 years ago
6 0
Ummmmmmmmmmmm773737777
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6. Find the function with x-intercepts (-3,0) and (5,0), which also goes through the point (1,8)
Yakvenalex [24]

Answer:

f(x) = (-1/2)(x^2 + 8x - 15)

Step-by-step explanation:

This function has two roots:  -3 and 5.  Most likely it is a quadratic (all of which have two roots).

Then f(x) = a(x + 3)(x - 5)

The graph goes through (1. 8):  Therefore, y = 8 when x = 1:

f(1) = a(1 + 3)(1 - 5) = 8, or

        a(4)(-4) = 8, or

            -16a = 8, which leads to a = -1/2.

Thus the quadratic in question is f(x) = (-1/2)(x + 3)(x - 5), or

                                                        f(x) = (-1/2)(x^2 + 8x - 15)

4 0
3 years ago
to prepare a pesticide spray 3.5 lb of spray is added to 30 gal of Water how much pesticides spray should be added to spray tank
amm1812
I got 41.4 lbs if you round to the nearest tenths
6 0
3 years ago
3 Caleb claims that when you multiply a number by 10, you can just write a 0 at the right end of the number. Caleb gives the exa
devlian [24]

Answer:

They are both correct

Step-by-step explanation:

It's interpretation of the concept. In common practice multiplying by 10 means you add a zero and that's what we teach 10 year olds. But what does adding a zero mean? It means adding a place value and that's what you learn when you are

So in both examples just add a decimal:

2.0 x 10 = 20.

0.2 x 10 = 2.0

In conclusion, it depends on the level of precision required in the discussion and the level of maturity as to who is correct in their examples. If you are teaching 3rd graders math, by all means you add a zero. If you are discussing physics you are shifting over a place value.

8 0
3 years ago
Two equal sides of an isosceles triangle are (3x - 1) units and (2x + 2) units. The third side is 2x units. Find x and
vovikov84 [41]

Answer: x=3 units. Perimeter:22 units

Step-by-step explanation:

P=perimeter

3x-1=2x+2

x-1=2

x=3 units

P=3x-1+2x+2+2x

P=3(3)-1+2(3)+2+2(3)

P=9-1+6+2+6

P=8+8+6

P=22 units

6 0
2 years ago
proszę o pomocy bardzo, lepej żeby było szybko, mam kartkówkę. Pytanie: wyznacz współrzędne i długość wektora AB jeżeli A(-3,-1)
IgorLugansk [536]

Answer:

Opps I don't know your language sorry

6 0
3 years ago
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