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3 years ago

I need helpppppp. Plzzz. I will mark you brianlist ❤️❤️❤️

Mathematics

2 answers:

leonid [27]3 years ago

6 0

Answer: The answer is C

Step-by-step explanation:

Blababa [14]3 years ago

4 0

The answer is C Your welcome

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Factor x^2−15x+56 yall are so helpful i dont get this at alllll

Alexandra [31]

(x-8)(x-7) hope this makes sense

5 0

2 years ago

Read 2 more answers

Which expression is equivalent to the expression shown? (5^4)2

marshall27 [118]

Answer:

5^8

Step-by-step explanation:

You multiply the exponents!!

7 0

2 years ago

Write the number 0.000938 in scientific notion.

ss7ja [257]

0.000938 in scientific notion.

First we need to move the decimal to its right and we need a number which is between 1-10.

0.000938
00.00938
000.0938
0000.938
00009.38

We moved the decimal 4 times and to the right so it will be negative. -4.

9.38 × 10^-4

Scientific notation of 0.000938 is 9.38 × 10^-4.

Check:-

9.38 × 10^-4 = 0.000938
0.000938 = 0.000938
Correct!

Scientific notation of 0.000938 is 9.38 × 10^-4.

6 0

3 years ago

Label the vertices and state the Pythagorean Theorem for the following right triangle. Find x.

Ganezh [65]

Answer:

Pythagorean Theorem Statement is below.

Therefore the value of x is 9 m.

Step-by-step explanation:

Given:

Label the vertices as A , B , C shown in figure below such that

∠A = 90°

AC = Longer leg = 12 m

AB = Shorter leg = x

BC = Hypotenuse = 15 m

To Find:

x = ?

Solution:

Pythagorean Theorem :

Pythagorean Theorem States that "the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides".

Which can be Written as

$(\textrm{Hypotenuse})^{2} = (\textrm{One Side})^{2}+(\textrm{Other Side})^{2}$

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

i.e $(BC)^{2}=(AB)^{2}+(AC)^{2}$

Substituting the values AB ,AC, BC we get

$(15)^{2}=(x)^{2}+(12)^{2}\\(x)^{2}=225-144=81\\(x)^{2}=81\\Square\ Rooting\\x=\sqrt{81}=9\\x=9\ m$

Therefore the value of x is 9 m.

4 0

3 years ago

Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat

Salsk061 [2.6K]

Answer: In June 2097

Step-by-step explanation:

According to the model, to find how many years t should take for $P(t)=21100$ we must solve the equation $0.9t^2+6t+14000=21100$ . Substracting 21100 from both sides, this equation is equivalent to $0.9t^2+6t-7100=0$ .

Using the quadratic formula, the solutions are $t_1= \frac{-6-\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=-92.21$ and $t_2=\frac{-6+\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=85.54$ . The solution $t_1=-92.21$ can be neglected as the time t is a nonnegative number, therefore $t=t_2=85.54$ .

The value of t is approximately 85 and a half years and the initial time of this model is the January 1, 2012. Adding 85 years to the initial time gives the date January 2097, and finally adding the remaining half year (six months) we conclude that the date is June 2097.

6 0

2 years ago