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3 years ago

Can someone help please?

Mathematics

1 answer:

vaieri [72.5K]3 years ago

7 0

Answer:

Step-by-step explanation:

$x^{2} + 2x =6\\\\x^{2} +2x + 1^{2} = 6 + 1^{2} \\\\(x+1)^{2} = (\sqrt{7})^{2}$

$x+1 = \sqrt{7}$

x = -1 ± $\sqrt{7}$

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1. At a speed of 80km/h, it takes 10hrs to travel between Abuja and Lagos. How long will it takes to cover the same distance at

Softa [21]

Answer:

1. 8 hours 2. 12 pumps

Step-by-step explanation:

1. 80 ×10=800

there are 800 miles between abuja and lagos

800÷100=8

it will take 8 hours

2. with 3 pumps it takes 36 hours. you need to be 4 times quicker so you need 4 times more pumps.

4×3=12 pumps

3 0

3 years ago

Read 2 more answers

PLEASE HELP WILL MARK BRAINLEIST

horsena [70]

Answer:

The picture shows the answer on the graph

Step-by-step explanation:

-2=-3/4×(x-6)

Distribute -3/4 through the parenthesis

-2= -3/4x+9/2

Multiply both sides of the equation by 4

-8=-3x+18

Move the variable to the left side and change its sign

3x-8=18

Move constant to the right side and change its sign

3x=18+8

Add the numbers

3x=26

Divide both sides of the equation by 3

x=26/3

Alternative Form- x=8 2/3 or x=8.6

7 0

3 years ago

The table below shows data for a class's mid-term and final exams:

lina2011 [118]

Mid term :
Q1 = (88 + 85)/2 = 86.5
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Q1 = (65 + 78)/2 = 71.5
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so the final exams has the largest IQR

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3 years ago

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boyakko [2]

<u>Given</u>:

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