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3 years ago

Please help just with the first 2 please explain

Mathematics

1 answer:

Gala2k [10]3 years ago

5 0

Number 1 :

Answer: line A

Why: The slope is less steep therefore it would be easier to climb, compared to a steeper elevation like f.

Number 2 :

Answer: line f

Why: The slope of line f is steeper than line a therefore the ball will travel down it faster because there is less time for the ball to travel down it.

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Triangle A B C is shown. Angle A B C is a right angle. An altitude is drawn from point B to point D on side A C to form a right

ivann1987 [24]

Answer:

i think its 1.2 not too sure though

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

The difference of the square of a number and 28 is equal to 3 times that number

Pepsi [2]

Answer:

- 4, 7

Step-by-step explanation:

Let the required number be x.

Therefore, according to the given condition:

${x}^{2} - 28 = 3x \\ {x}^{2} - 3x - 28 = 0 \\ {x}^{2} - 7x + 4x - 28 = 0 \\ x(x - 7) + 4(x - 7) = 0 \\ (x - 7)(x + 4) = 0 \\ x - 7 = 0 \: or \: x + 4 = 0 \\ x = 7 \: or \: x = - 4 \\$

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3 years ago

I also need help with this one

solmaris [256]

The amount of pizza Mark would have is
$\frac{1}{6} + \frac{1}{4}$
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6 0

3 years ago

How to solve (x^2 -1) -12(x^2-1) +35

DerKrebs [107]

Answer:

$- 11x^{2} + 64$

Step-by-step explanation:

$(x^{2} - 1) - 12 (x^{2} - 1) + 35 = \\x^{2} - 1 - 12x^{2} + 12 + 35 = \\x^{2} - 12x^{2} + 64 = \\- 11x^{2} + 64$

3 0

4 years ago

If+you+invest+$100+at+an+interest+rate+of+15%,+how+much+will+you+have+at+the+end+of+eight+years?

svp [43]

Answer:

$305.9022863 or $305.90 (rounded to 2 decimal places)

Step-by-step explanation:

It is a compound interest, meaning an interest accumulates on an initial amount every period. The formula

A= P(1+R)^n

A= the total amount P=Initial amount R= rate n=time period

P=$100 R=15% or 0.15(decimal) n=8 (years)

A= 100 (1.15)^8

A= 100(3.059022863)

A=305.9022863

8 0

2 years ago