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3 years ago

Math question 4:) please and thanks

Mathematics

1 answer:

Wittaler [7]3 years ago

4 0

Plug 9 into the equation so that h(9)=2(9)-3. From here solve so h(9)= 18-3 so h(9)=15.

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Joey is saving up for a down payment on a car. He plans to invest $2,000 at the end of every year for 3 years. If the interest r

____ [38]

A=Annual amount=2000
i=annual interest=0.0205
n=number of years=3
Present value
=A((1+i)^n-1)/(i(1+i)^n)
=2000(1.0205^3-1)/(.0205(1.0205^3))
=5762.15

5 0

3 years ago

Read 2 more answers

PLZ HELP ME. WILL GIVE BRAINLIEST. THANKYOU!!

____ [38]

Answer:

x = 6

Step-by-step explanation:

Given

3x + 30 + x = 10 + 2x + 5x + 2 , simplify both sides

4x + 30 = 7x + 12 ( subtract 7x from both sides )

- 3x + 30 = 12 ( subtract 30 from both sides )

- 3x = - 18 ( divide both sides by - 3 )

x = 6

6 0

3 years ago

As the figure shows Elton runs 500 m to point b first then he turns 100 degrees and runs another 350 m to point c how far is the

Alex777 [14]

Answer:

658.24 m

Step-by-step explanation:

Let A be the point from where Elton started. Connect points A and C, you get triangle ABC with AB=500 m, BC=350 m and m∠B=100°. Use the cosine rule to determine the length of the segment AC:

$AC^2=AB^2+BC^2-2\cdot AB\cdot BC\cdot \cos \angle B,\\ \\AC^2=500^2+350^2-2\cdot 500\cdot 350\cdot \cos 100^{\circ},\\ \\AC^2=250000+122500-350000\cdot (-0.174),\\ \\AC^2\approx 433276.8622,\\ \\ AC\approx 658.24\ m.$

8 0

4 years ago

Read 2 more answers

NEED HELP ASAP!

LUCKY_DIMON [66]

I think it is A but I'm not really sure

6 0

3 years ago

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Integral of of sin x/cosˆ2 x

marin [14]

Answer:

$\sec x + c$

Step-by-step explanation:

$\int \frac{ \sin \: x}{ { \cos}^{2}x } \: dx \\ \\ = \int \frac{ \sin \: x}{ { \cos}x } . \frac{ 1}{ { \cos}x } \: dx \\ \\ = \int \tan x . \sec x \: dx \\ \\ = \sec x + c$

7 0

3 years ago