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3 years ago

The quotient of a number and four decreased by ten is two what is the number

Mathematics

1 answer:

alukav5142 [94]3 years ago

4 0

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Work out the area of the triangle :)<br><br> Show working out plz:)

Snowcat [4.5K]

The formula for triangle area is b•h/ 1/2. so you would do 12•5=60. then divide that by 2 to get 30

7 0

3 years ago

HELP FAST PLEASE !!! This symbol π is called ___ and is approximately equal to ___ .

pashok25 [27]

Pi and it’s equal to 3.14

7 0

4 years ago

Read 2 more answers

Please help me idk this

Stells [14]

We are given that Donna knit a total of 12 blankets.

She took 4 months in doing it.

To find the number of blankets in 1 month, take ratio of number of blankets to number of months.

$\frac{number \: of \: blnkets}{number \: of \: months} \\ \\ = \frac{12 \: blankets}{4 \: months} \\ \\ = \frac{3 \: blankets}{1 \: months}$

Thus, she knit 3 blankets in 1 months

4 0

3 years ago

Read 2 more answers

a) Suppose f"(z) exists on an interval I and f(s) has a zero at three distinct points a < b< c on I. Show there is a pbint

Fynjy0 [20]

Answer:

We can find a root in the average point (a+b+c)/3

Step-By-Step Explanation:

We can use the Rolle Theorem. Since f is two times deribable on both [a,b] and [b,c], then there exists points x in (a,b) and y in (b,c) such that f'(x) = f'(y) = 0. Now, again by using Rolle Theorem, since f' is derivable in [x,y] (because it is a closed interval in I), then there exists s in [x,y] such that f''(s) = 0. This proves a.

The cube (x-a)(x-b)(x-c) has 3 roots, a, b and c and it is two times derivable because it is a polynomial. Hence we can use (a) to ensure that there is a root on I. Nevertheless, we can try to find the root manually:

f'(x) = (x-b)(x-c)+(x-a)(x-c)+(x-a)(x-b)

f''(x) = (x-c)+(x-b)+(x-c)+(x-a)+(x-b)+(x-a) = 2(x-a)+2(x-b)+2(x-c) = 2( (x-a) + (x-b) + (x-c) ) = 6x - 2 (a+b+c).

We want x such that

6x - 2(a+b+c) = 0, or, equivalently,

3x - (a+b+c) = 0

Hence

x = (a+b+c)/3

Is a root of f'' in I.

3 0

3 years ago

Luiza wants to go on a popular talent TV show. In order to be accepted, her audition must get at least 60%

Elena-2011 [213]

We cannot reject the null hypothesis as the p value is less than 0.01.

<h3>How to illustrate the hypothesis?</h3>

From the information given, Luiza wants to go on a popular talent TV show and in order to be accepted, her audition must get at least 60% positive votes from the people in the crowd.

The observed outcome also has a probability less than 1% under the tested hypothesis. Based on the information, the test statistic will be - 1.58.

After this, this will be checked under the standard normal distribution table where the p value will be 0.0571.

Based on this information, we cannot reject the null hypothesis as the p value is less than 0.01.

In conclusion, the correct option is that we cannot reject the hypothesis.

Learn more about hypothesis on:

brainly.com/question/25263462

#SPJ1

3 0

2 years ago