4 years ago

How to complete the square of x^2+8x+15=0

Mathematics

1 answer:

earnstyle [38]4 years ago

6 0

Answer:

x= -3, -5

Step-by-step explanation:

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there are nine single discs in a classroom the rest of the deaths are double desks the classroom has seating for 33 learners how

mixas84 [53]

9+2x=33
2x=24
X=12 double desks

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3 years ago

Heeeelp pls i beg of you

Marat540 [252]

Answer: 41.6%

Step-by-step explanation:

You divide the amount of trees 40ft or taller (10) by the total number of trees (24) so 10/24 = .416 (41.6%)

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3 years ago

If an employer reduces the working week from 40 hours to 35 hours, with no

tangare [24]

Answer:

14.285714285714 %

Step-by-step explanation:

suppose the weekly payment is of x dollars

Then

Previous payment : $(x/40) per hour

New payment : $(x/35) per hour

Then

The percentage increase in the hourly rate of pay is :

$=\frac{\frac{x}{35} -\frac{x}{40} }{\frac{x}{40} } \times100$

$=\frac{\frac{5x}{1400} }{\frac{x}{40} } \times100$

$=\frac{5x}{1400} \times \frac{40}{x} \times100$

$=\frac{200}{1400} \times100$

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$=14.285714285714$

6 0

2 years ago

Calculate the size of angle DBE.6. Calculate the size of angle DBE.

Lina20 [59]

Angle D = 47’

Angle B = 116’
32 + 32 = 64
180 - 64 = 116’

Angle E = 17’
116 + 47 = 163
180 - 163 = 17

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3 years ago

Solve the equation.<br> 5(x-3) - 10 = 0<br> X=

ss7ja [257]

Answer:

x = 5

Step-by-step explanation:

Report if wrong

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3 years ago