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sergejj [24]
3 years ago
10

Is the error when they flipped the 28/6 ?

Mathematics
2 answers:
Jobisdone [24]3 years ago
5 0

Answer:

Step-by-step explanation:

I guess

OLEGan [10]3 years ago
3 0

When dividing by a fraction you flip the second fraction over and change to multiply.

The error was simplifying the -36 and the 28

That shouldn’t have been done. After flipping the fraction over they should have multiplied across:

-36/1 x 6/28 = (-36 x 6) / (1 x 28) = -216/28

Rewrite as: -7 5/7

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Lim (sin(pi/x)) as x tends to 0 from both sides​
strojnjashka [21]

Hello from MrBillDoesMath!

Answer:

Limit does not exist.

Discussion:

The function 1/x has a vertical asymptote as x approaches 0 so

sin (pi/x) has no limit as x approaches 0. In fact, it oscillates wildly between -1 and 1 as x approaches 0. See attached graph of function

Thank you,

MrB

8 0
3 years ago
There are 8 fewer tigers than lions at the zoo. There are 8 tigers at the zoo. How many lions does the zoo have?
Aleks04 [339]
Sixteen because if there are eight less tigers than lions at a zoo, then that means you add 8 to get the number of lions

8 0
3 years ago
Read 2 more answers
1. How many real solutions does the quadratic equation x?+9x= -8 have?​
likoan [24]

Answer:

This quadratic equation has 2 solutions.

Step-by-step explanation:

I assume the '?' in your question is meant to be power 2 (²), or else it would not be a quadratic equation. You could write it using the superscript version of 2.

We can solve this equation by expressing it in the form: ax² + bx + c

x² + 9x= -8

x² + 9x + 8 = 0

Now if you know the discriminant, you can simply plug in your values of a, b, and c to see how many solutions there are.

In this case, you would not need the discriminant as there are whole-number factors and hence this can simply be factorised.

x² + 9x + 8 = 0

(x + 8)(x + 1) = 0

For this equation to be true (= 0), x can equal -8 OR -1.

Hence, this quadratic equation has 2 solutions.

5 0
2 years ago
Russell has been training for the Emerald Valley Race. The first week he trained, he ran 5 days and took the same two routes eac
Ivahew [28]

In maths, Distance is described as the quantity of space between two points, and further calculation can be defined as follows:

Given Expression:

5x + 2 = 30\\\\2(x + 5) = 30\\\\5(x + 2) = 30\\\\2x + 5 = 30

To find:

distance=?

Solution:

5\ days\ \begin{cases} & \text{ if } \text{before school 2 miles}    \\  & \text{ if } \text{after school x miles} \end{cases}

\therefore 5(x+2)=30\\\\

\bold{5(x+2)=30}\\\\\bold{5x+10=30}\\\\\bold{5x=30-10}\\\\\bold{5x=20}\\\\

\bold{x=\frac{20}{4} }\\\\\bold{x=4}

Therefore, the final answer is "4 miles".

Learn more:

brainly.com/question/12186030

8 0
3 years ago
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PLEASE HELP!!<br><br> What is the scale factor?
mojhsa [17]

Answer:

f9

Step-by-step explanation:

8 0
2 years ago
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