Write an expression using letters and/or numbers for each problem below

Mathematics

1 answer:

gavmur [86]3 years ago

3 0

1. $d^2
$

2. $(x+6)\cdot2$

3. $\dfrac{h+b}{5}$

4. $\$45+m-\dfrac{1}{3}(\$45+m)$

5. $3f+d$

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Factorise 2x²-9x+10 (this must be put in two brackets)

galben [10]

Find both roots :
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Thus it is $2(x-\frac{5}2)(x-2)$

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The square of the sum of 7 times x and 3 divided by 4 times the difference of x and 1

4vir4ik [10]

I believe the 3rd answer down if the information you provided is correct

Squaring the sum on the top, rules out 1 and 2 (not squaring the 7 only)
then 4 times the difference. so I believe 4 (x-1) on the bottom.

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NNADVOKAT [17]

Q1) £16.50 x 1.12 = £18.48
Q2)

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213/12 = 17.75
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So it’s 159.75 minutes for the films to download

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3 years ago

What is the inverse of the relation? <br> {(-4,1), (-4,3), (0,-8), (8,-9)}

BigorU [14]

The inverse relation would be each of these ordered pairs switched.

{(1, -4), (3, -4), (-8, 0), (-9, 8)}

This is because when you create an inverse equation, all of the inputs become outputs and all of the outputs become inputs. Therefore, the ordered pairs simply switch.

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Please help me.

Nat2105 [25]

Answer:

91.4 inches

Step-by-step explanation:

I will leave the explanation in the comments.

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