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inessss [21]
2 years ago
7

The function f is defined by

Mathematics
2 answers:
Pepsi [2]2 years ago
5 0

Hope this helps :)

Photo attached.

vichka [17]2 years ago
4 0

Answer:

k=13

x= -10

Step-by-step explanation:

f(x)=x²+3x-10

f(x+5)=

=(x+5)(x+5)+3(x+5)-10

=x²+10x+25+3x+15-10

=x²+13x+30

0=x²+13x+30

0=(x+3)(x+10)

x= -3 or -10

-10< -3

smallest zero is -10

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I give you points lol
larisa86 [58]

Answer:

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Step-by-step explanation:

3 0
2 years ago
A single chocolate muffin has 260 calories, and a blueberry muffin has 240 calories. Both muffins can be bought at the local caf
Stella [2.4K]

Answer:

364 calories

Step-by-step explanation:

1/2 of 240=120 calories

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8 0
3 years ago
What is the slope of the line
Alexandra [31]

Answer:

The slope is 7/7 or 1.

Step-by-step explanation:

Find any two points on the line. I chose (0,7) and (-7,0).

Put rise over run.

7-0

———

0 – -7

this would equal 7/7 which simplifies to 1.

Hope this helped!

7 0
3 years ago
Bob and James are finishing the roof of a house. Working alone, Bob can shingle the roof in 14 hours. James can shingle the same
Snowcat [4.5K]

we know that Bob can do the whole job in 14 hours, how much of the work has he done in 1 hour only?  well since he can do the whole lot in 14 hours in 1 hour he has only done 1/14 th of the job.

we know that James can do it in 18 hours, a bit slower, so in 1 hour he has done only 1/18 th of the job.

let's say it takes both of them working together say "t" hours, so in 1 hour Bob has done (1/14) of the work whilst James has done (1/18) of the work, the whole work being t/t or 1 whole, so for just one hour that'd 1/t done by both Bob and James.

\bf \stackrel{Bob}{\cfrac{1}{14}}~~+~~\stackrel{James}{\cfrac{1}{18}}~~=~~\stackrel{total~for~1~hour}{\cfrac{1}{t}} \\\\\\ \stackrel{\textit{using an LCD of 126}}{\cfrac{9+7}{126}=\cfrac{1}{t}}\implies \cfrac{16}{126}=\cfrac{1}{t}\implies 16t=126\implies t=\cfrac{126}{16} \\\\\\ \stackrel{\textit{7 hrs, 52 minutes and 30 seconds}}{t=\cfrac{63}{8}\implies t=7\frac{7}{8}}\implies \stackrel{\textit{rounded up}}{t=7.88}

7 0
3 years ago
For f(x) = x + 7, find f(x) when x = 3 and when x = -5.​
denpristay [2]

Answer:

When x = 3

f(3) = 3 + 7 = 10

When x = -5

f(-5) = -5 + 7 = 2

please mark me the brainliest

6 0
2 years ago
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