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3 years ago

Plot the x intercepts of the function

Mathematics

1 answer:

Nutka1998 [239]3 years ago

5 0

Answer:

(-1,0), (3,0)

Step-by-step explanation:

(x+1)(x-3) = y

We are trying to find the values for x which make y = 0.

y can only equal 0 when x+1 or x-3 =0

When you solve both x+1 =0, and x-3=0, your solution set is x = -1,3 --> (-1,0), (3,0)

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Can someone please answer this. Is it a,b,c, or d

Mashcka [7]

Answer:

(n+6)(n-6)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Find the volume of the composite figure

AURORKA [14]

39in³ is a required volume.

Solution given:

for upper one

length[l]=8in

breadth[b] =3in

height[h]=1in

now

volume [V1]=l×b×h=8×3×1=24in³

again for lower one:

length[l]=6-1=5in

breadth[b] =3in

height[h]=1in

volume [V2]=l×b×h=5×3×1=15in³

Again

total volume =V1+V2=24in³+15in³=39in³

6 0

3 years ago

Evaluate the sum of the finite geometric series.<br> 1+2+4+8+...+128

Wittaler [7]

S = a*((1 - r^(n+1))/(1-r)) S = 1*((1 - 2^(7+1))/(1-2)) S = 1*((1 - 2^8)/(1-2)) S = 1*((1 - 256)/(1-2)) S = 1*((-255)/(-1)) S = 255 So 1+2+4+8+...+128 = 255

7 0

3 years ago

I need to factor X^2+2x+xy+2y Does anyone know how?

lions [1.4K]

<span>x^2+2x+xy+2y
= x(x + 2) + y (x +2)
= (x + 2)(x + y)

hope it helps</span>

6 0

3 years ago

Kofi estimated that he would run a total of 10 km in 1 h. In 1 h, he actually ran 46 times around a track 0.25 km long, going a

strojnjashka [21]

The equation to find percent error is

$\frac{actual-theoretical}{theoretical}*100$

where actual is the value that actually came out (in this case, 11.5 km) and theoretical is the value that was supposed to come out (in this case, 10 km). Just plug in the numbers and simplify.

$\frac{actual-theoretical}{theoretical}*100\\\\\frac{11.5-10}{10}*100=\frac{1.5}{10}*100=15\%\ error$

So, the true answer would be 15%. Apparently, the question you're asking takes 11.5 as the theoretical and the 10 as the actual (which I personally disagree with)

If you plugged in the numbers that way, the answer comes out to 13.04%. So, the correct answer for your answer choices is c. 13%

3 0

2 years ago