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3 years ago

[please help fast]

Mathematics

1 answer:

madreJ [45]3 years ago

7 0

SAS because of the side, angle and the reflexive which is a side.

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It is given 5 and h + 1 are the roots of the quadratic equation x² + (k - 1)x - 5 = 0,where h and k are constant.Find the value

Liono4ka [1.6K]

Answer:

Hello,

k=-3 and h=-2

Step-by-step explanation:

$5\ is\ a \ root \of \ x^2+(k-1)*x-5=0\\\\5^2+(k-1)*5-5=0\\\\5*(k-1)+20=0\\\\k-1=\dfrac{-20}{5} \\\\k=-4+1\\\\\boxed{k=-3}\\$

h+1 is thus a root of x²+(-3-1)*x-5=0

x²-4x-5=0

x²+x-5x-5=0

x(x+1)-5(x+1)=0

(x+1)(x-5)=0

h+1=-1

h=-2

6 0

3 years ago

Tell weather the figures are similar.Explain

monitta

No the figures aren’t similar. According to the Angle Angle Similarity Theorem- they should have the same angle degree.

8 0

3 years ago

What is 2,799.89 x 4,984.76 !please answer i want to know!

ozzi

Answer:

13,956,779.6764

7 0

2 years ago

Read 2 more answers

What is the Volume of this Prism?

gavmur [86]

Answer:

240

Step-by-step explanation:

6 0

2 years ago

In 1940, there were about 10 brown tree snakes per square mile on the island of Guam, and in 1980, there were about 5000 per squ

Softa [21]

Answer:

a) $500=(1+r)^{40}$

b) 16.81%

Step-by-step explanation:

The general formula for compound growth is:

$F=P(1+r)^t$

Where

F is the future amount (5000 in our case)

P is the present amount (10 here)

r is the rate of growth (we don't know that yet)

t is the time in years (that would be 1980 - 1940 = 40)

So, the formula becomes:

$F=P(1+r)^t\\5000=10(1+r)^{40}\\500=(1+r)^{40}$

We need to find the growth rate (annual percentage increase). So we have to solve for "r" in the equation found in part (a).

$500=(1+r)^{40}\\\sqrt[40]{500} =\sqrt[40]{(1+r)^{40}} \\1.1681=1+r\\r = 1.1681 - 1 = 0.1681$

To get percentage, we multiply by 100:

0.1681 * 100 = 16.81%

3 0

2 years ago