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3 years ago

Please help. Thank you.

Mathematics

1 answer:

Trava [24]3 years ago

4 0

Answer:

By the Pythagoras theorem, the hypotenuse (c), is equivalent to:

a^2+ b^2= c^2 where a and b are the other two sides of the right angled triangle, hence c= square root (15^2+ 20^2)= 25

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How does f(x) = 3 ^x change over the interval x = 4 to x= 5

zloy xaker [14]

Answer:

f(x) = 3^x increases steadily on the interval [4,5].

Step-by-step explanation:

This exponential function f(x) = 3^x has a positive base (3) which is larger than 1. Thus, this function continues to increase as x increases, including the case where x increases from 4 to 5.

6 0

4 years ago

I will give brainiest to whoever answers correctly !!

IgorC [24]

Answer:

Interest rate, R = 244%

Step-by-step explanation:

Given the following data;

Principal = $270

Simple interest = future amount - principal = 309.60 - 270 = $39.60

Time = 22/360 = 0.06 years

To find the interest rate?

Mathematically, simple interest is calculated using this formula;

$S.I = \frac {PRT}{100}$

Where;

S.I is simple interest.

P is the principal.

R is the interest rate.

T is the time.

Substituting into the equation, we have;

$39.60 = \frac {270*R*0.06}{100}$

Cross-multiplying, we have;

$39.6 * 100 = 16.2*R$

$3960 = 16.2R$

$R = \frac {3960}{16.2}$

<em>Interest rate, R = 244.44 ≈ 244%</em>

<em>Therefore, the pawnbroker charged Elisa a simple interest rate of 244%.</em>

5 0

3 years ago

What is the factored form of the following expression?

S_A_V [24]

D. (d-9)(d-5)

Since they are both negative, they will multiply to a positive number (45) and add to a negative number (-14)

3 0

3 years ago

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The distance around a triangle is 26 centimeters. If two sides are equal and the length of the third side is 10 centimeters, wha

allsm [11]

Answer:

Step-by-step explanation:

26-10=16

16 divided by 2=8

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3 years ago

Identify the percent of change as an increase or a decrease.

icang [17]

Answer:

30% decrease

Step-by-step explanation:

50 - 35 / 50

= 15/50

= 3/10

= 30% (decrease as value is lower than original)

3 0

3 years ago

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