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3 years ago

2 and 3 ! Please help

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

Answer:

2.) yes

3.) x=3

Step-by-step explanation:

2.) if u plug in 2 into the x-value, then the y-value equals to 5 (so it's correct)

3.)

y = 6

2x + 6 = 12

x = 3

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What is the slope of the line passing through the points (6, 7) and (1, 5) ?

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y=2/5x and then your y-intercept

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3 years ago

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when you simplify 2/4 it equals 1/2. Making them both equal the same.

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3 years ago

Please help! Thanks in advance.

alukav5142 [94]

In this problem, we need to plug in the given x values for $f(x)=0$ and find a and b.

When we plug in 1, we get: $2 \times {1}^{4} - 5 \times {1}^{3} - 14 \times {1}^{2} + a \times 1 + b = 0$

Simplify:
$2 - 5 - 14 + a + b = 0$
$- 17 + a + b = 0$
$a + b = 17$

We got our first statement about the values of the variables. If we find one more we can find those 2 variables.

We have another given root: 4.

Plug it in:
$2 \times {4}^{4} - 5 \times {4}^{3} - 14 \times {4}^{2} + a \times 4 + b = 0$
$512 - 320 - 224 + 4a + b = 0$
$- 32 + 4a + b = 0$
$4a + b = 32$

Now we have our second one. We can combine them:
$a + b = 17 \\ 4a + b = 32$

I use elimination method which is easier here.

Multiply the top equation by -1: $- a - b = - 17 \\ 4a + b = 32$

Add them up:
$3a = 15$

Simplify:
$a = 5$

Now we have a, we can plug in one of those equations to find b:
$5 + b = 17$
$b = 17 - 5$
$b = 12$

So, the answers are $a=5$ and $b=12$ .

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3 years ago

A total of 507

expeople1 [14]

Answer:

507-57 = 450 adult tickets

hope this helps :) plz brainliest if helps

Step-by-step explanation:

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