3 years ago

Which shows a correct order to solve this story problem?

2 answers:

5 0

Step B would be correct because you trying to find the total number of hours she reads in 8 days and not the difference. <span />

ohaa [14]3 years ago

3 0

The answer is D. Step1: Multiply 1.2 by 2.5.
Step 2: Divide the product by 8.
Hope this helps.

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Find the area of a trapezium whose parallel sides are 34cm,20cm and the other sides are 13cm and 15cm.

Genrish500 [490]

Hope its helpful to you mark me as a brainlist

5 0

3 years ago

The graph of a function in the form f(x) a(x - h)2 +k is shown. Use the graph to find an equation for f(x).

seropon [69]

O.K.

(h; k) are the coordinates of the vertex.

On the graph are (3; 4), therefore we have:

$f(x)=a(x-3)^2+4$

We have the x-intercept (1; 0) → x = 1; y = 0.
Substitute them in the equation:

$0=a(1-3)^2+4\\\\0=a(-2)^2+4\\\\4a+4=0\ \ \ |-4\\\\4a=-4\ \ \ \ |:4\\\\a=-1$

so. We have the answer:

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

8 0

3 years ago

How do you factorise 14x -21xy

alexandr402 [8]

<span>Simplifying 14x + -21xy

Factor out the Greatest Common Factor (GCF), '7x'. 7x(2 + -3y)

Final result:
7x(2 + -3y)

that is the answer on how to do it</span>

4 0

3 years ago

Read 2 more answers

Could someone explain why (-4)² is equal to 16 but -4² is equal to -16

erica [24]

Answer:

It's all about the brackets.

Step-by-step explanation:

If we do (-4)^2, the brackets make it -4 x -4 and the two negatives make a positive of 16.

If we do -4^2, that means that the 4 is squared before putting the minus sign there so you have 4x4 = 16 then put the minus to get -16.

Hope this helps!

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