3 years ago

What This Is It Common Factor And greatest common factor please solve :3

Mathematics

1 answer:

lubasha [3.4K]3 years ago

8 0

The first one for 56 and 26 would be 2

and for the second of 9,12 and 21 it would be 3

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I need help with these 2 questions

tensa zangetsu [6.8K]

Number 1 would the last option, but I’m not sure about number 2

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3 years ago

The graph shows a line of best fit because the points are plotted evenly above and below the line.

stepladder [879]

It should be A: the points are plotted evenly above and below

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3 years ago

5. The mapping f: xax² + bx + c defined on the set of real numbers is such that f(0) = -4,f(1)-1 and/(-1)= -5. Find a, b and c.

Marrrta [24]

It looks like you're saying

$f(x) = ax^2 + bx + c$

and you're asked to find $a,b,c$ given $f(0)=-4$ , $f(1)=-1$ , and $f(-1)=-5$ .

Evaluate $f$ at the three given points:

$x=0 \implies f(0) = \boxed{c = -4}$

$x=1 \implies f(1) = -1 = a + b + c \implies a+b = 3$

$x=-1 \implies f(-1) = -5 = a - b + c \implies a - b = -1$

$(a+b) + (a-b) = 3 + (-1) \implies 2a = 2 \implies \boxed{a=2}$

$a-b = -1 \implies \boxed{b=3}$

and the mapping is $f(x) = 2x^2 + 3x - 4$ .

5 0

2 years ago

Larry plans to paint 2 walls in his room. The ceiling is 8 feet above the floor. One of the walls is 13 feet wide and the other

BaLLatris [955]

Answer:

1040

Step-by-step explanation:

multiply all 80 times 10 times 13

8 0

3 years ago

A foundry has been commissioned to make souvenir coins. The coins are to be made from an alloy that is 40% silver. The foundry h

alexgriva [62]

The ratio of 50% content to 25% content is
.. (40-25) : (50-40) = 15:10 = 3:2
There is a total of 5 "ratio units" in this ratio, so each is representing 35 kg/5 = 7 kg of alloy.

21 kg of 50% alloy and 14 kg of 25% alloy should be used.

6 0

3 years ago