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2 years ago

Help help math math math please

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

3 0

Answer:

x = 5

Step-by-step explanation:

2x+15 = 4x+5 <em>(because they are corresponding angles)</em>

10 = 2x

x = 5

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Based on the image and stated scale, what is the value of y?

GenaCL600 [577]

Answer:

2.2 inches

Step-by-step explanation:

This is because of the stated scale rate. 1/5 is equal to 20% with that 20% of 11 inches would yield 2.2 inches hope this helps :)

5 0

3 years ago

Explain why f(x) = x^2+4x+3/x^2-x-2 is not continuous at x = -1.

liberstina [14]

Answer:

The value of x = -1 makes the denominator of the function equal to zero. That is why this value is not included in the domain of f(x)

Step-by-step explanation:

We have the following expression

$f(x) = \frac{x^2+4x+3}{x^2-x-2}$

Since the division between zero is not defined then the function f(x) can not include the values of x that make the denominator of the function zero.

Now we search that values of x make 0 the denominator factoring the polynomial $x^2-x-2$

We need two numbers that when adding them get as a result -1 and when multiplying those numbers, obtain -2 as a result.

These numbers are -2 and 1

Then the factors are:

$(x-2) (x + 1)$

We do the same with the numerator

$x^2+4x+3$

We need two numbers that when adding them get as a result 4 and when multiplying those numbers, obtain 3 as a result.

These numbers are 3 and 1

Then the factors are:

$(x+3)(x + 1)$

Therefore

$f(x) = \frac{(x+3)(x+1)}{(x-2)(x+1)}$

Note that $\frac{(x+1)}{(x+1)}=1$ only if $x \neq -1$

So since $x = -1$ is not included in the domain the function has a discontinuity in $x = -1$

3 0

3 years ago

Please help on this ill give braneliest

horsena [70]

Answer:

-2.5

Step-by-step explanation:

25/-10 = -2.5

20/-8 = 2.5

10/-4 = 2.5

-5/2 = 2.5

so the answer is -2.5

Can I pls have brainliest

8 0

2 years ago

Factoring tables. plzzz help

crimeas [40]

Need more context to answer this question. Please send me the rest of the context

8 0

3 years ago

Why isn’t 10.3 a integer? answer asap pls

Oxana [17]

Answer:

It is not a whole number.

Step-by-step explanation:

First, you have to know that interests are WHOLE NUMBERS, not fractions.

10.3 is not a whole number, as 10.3= 10 3/10, or 103/10.

7 0

3 years ago