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3 years ago

What's the most efficient way to revise for a maths test? (Can really do with some advise )

Mathematics

2 answers:

Rudiy273 years ago

7 0

Answer:

Step-by-step explained

Sleep,eat well,drink plenty of water.Attened any revision plans.

zysi [14]3 years ago

7 0

Answer:

Make sure to get plenty of sleep, dont cram the night before the test. This will affect your thinking ability while taking the test.

Have several review sessions the week preceding the test, to make sure you've properly covered the material.

Have a good breakfast, I like toast with jam and oatmeal, sugary cereal can make your attention span low and affect how much effort you put into the test.

Take notes! Writing something down has often helped me memorize it better, and led to better performance on the test.\

Hope this helps!

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4c=-40 i don't know this and i need help<br> ill do what i can in return

melamori03 [73]

Answer:

4c=-40

Divide boyh sides by 4

c=-40/4

c=-10

8 0

2 years ago

Read 2 more answers

Find the domain of the function. (Enter your answer using interval notation.)

Andreas93 [3]

Answer:

$(-\infty,-9)\cup(-9,\infty)$

Step-by-step explanation:

The domain of a rational function is all real numbers <em>except </em>for when the denominator equals 0.

So, to find the domain restrictions, set the denominator to 0 and solve for x.

We have the rational function:

$s(y)=\frac{7y}{y+9}$

Set the denominator to 0:

$y+9=0$

Subtract 9:

$y\neq-9$

So, the domain is all real numbers except for -9.

In other words, our domain is all values to the left of negative 9 and to the right of negative 9.

In interval notation, this is:

$(-\infty,-9)\cup(-9,\infty)$

And we're done :)

4 0

3 years ago

Miko’s restaurant bill was $16. She used the expression 1.18(16) to find the total cost including an 18% tip.

Lena [83]

The answer is (1+0.18)16.

3 0

3 years ago

Read 2 more answers

For the following exercises, find (f ∘ g)(x) and (g ∘ f)(x) for each pair of functions.

Rufina [12.5K]

Answer:

The value of $(f \circ g)(x)$ is 17-18x and $(g \circ f)(x)$ is -7-18x.

Step-by-step explanation:

It is given in the question functions f(x) as 3x+2 and g(x)=5-6x.

It is required to find $(f \circ g)(x)$ and $(g \circ f)(x)$ .

To find $(f \circ g)(x)$ , substitute g(x) for x in f(x) and simplify the expression.

To find $(g \circ f)(x)$ , substitute f(x) for x in g(x) and simplify the expression.

Step 1 of 2

Substitute g(x) for x in f(x) and simplify the expression.

$\begin{aligned}&(f \circ g)(x)=f(5-6 x) \\&(f \circ g)(x)=3(5-6 x)+2 \\&(f \circ g)(x)=15-18 x+2 \\&(f \circ g)(x)=17-18 x\end{aligned}$

Step 2 of 2

Substitute f(x) for x in g(x) and simplify the expression.

$\begin{aligned}&(g \circ f)(x)=g(3 x+2) \\&(g \circ f)(x)=5-6(3 x+2) \\&(g \circ f)(x)=5-18 x-12 \\&(g \circ f)(x)=-7-18 x\end{aligned}$

5 0

2 years ago

Is a number of television in a household a discrete quantitative or continuous quantitative

mezya [45]

discrete, you cannot have 1.5 televisions

generally the number of X is a discrete variable.

continous = can contain decimal value (float values)

discrete = no decimal (integers)

7 0

3 years ago

What's the most efficient way to revise for a maths test? (Can really do with some advise ) ​

What's the most efficient way to revise for a maths test? (Can really do with some advise )