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Anestetic [448]
3 years ago
14

Can you help me please.​

Mathematics
2 answers:
sdas [7]3 years ago
5 0
What they said is correct^^
Makovka662 [10]3 years ago
3 0

Step-by-step explanation:

(3a - 15) - (9a + 2) \\  - 6a - 17

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What us the measure of the missing angle?
kow [346]

Answer:

None of them

Step-by-step explanation:

Because 30+135+45 add up to 210 then if you add 30, or 45 degrees it will be more than 180 degrees. If you subtract -15 from 210 you will get 195 which is still not right. So the best  answer is none of the above

Hope this helps

8 0
3 years ago
For the following amount at the given interest rate compounded​ continuously, find​ (a) the future value after 9 ​years, (b) the
Stella [2.4K]

Answer:

(a) The future value after 9 ​years is $7142.49.

(b) The effective rate is r_E=4.759 \:{\%}.

(c) The time to reach ​$13,000 is 21.88 years.

Step-by-step explanation:

The definition of Continuous Compounding is

If a deposit of P dollars is invested at a rate of interest r compounded continuously for t years, the compound amount is

A=Pe^{rt}

(a) From the information given

P=4700

r=4.65\%=\frac{4.65}{100} =0.0465

t=9 \:years

Applying the above formula we get that

A=4700e^{0.0465\cdot 9}\\A=7142.49

The future value after 9 ​years is $7142.49.

(b) The effective rate is given by

r_E=e^r-1

Therefore,

r_E=e^{0.0465}-1=0.04759\\r_E=4.759 \:{\%}

(c) To find the time to reach ​$13,000, we must solve the equation

13000=4700e^{0.0465\cdot t}

4700e^{0.0465t}=13000\\\\\frac{4700e^{0.0465t}}{4700}=\frac{13000}{4700}\\\\e^{0.0465t}=\frac{130}{47}\\\\\ln \left(e^{0.0465t}\right)=\ln \left(\frac{130}{47}\right)\\\\0.0465t\ln \left(e\right)=\ln \left(\frac{130}{47}\right)\\\\0.0465t=\ln \left(\frac{130}{47}\right)\\\\t=\frac{\ln \left(\frac{130}{47}\right)}{0.0465}\approx21.88

3 0
3 years ago
Determine the solution to the equation. 2(9x - 6) = 6(3x - 2) + 2
Irina-Kira [14]
The answer is bbbbbbbbb
7 0
3 years ago
In ΔDFE, which trigonometric ratio has the same value as sin D?
DerKrebs [107]
Hello,

sin (30°)= cos (60°)=1/2  (complementary angles)
sin D= cos E

Answer C

5 0
3 years ago
Read 2 more answers
When given the information below, can you conclude that Quadrilateral WXYZ is a parallelogram? Why or why not?
Masja [62]

B) No, because opposite sides are not parallel

Step-by-step explanation:

Given this information, assume that quadrilateral WXYZ is a parallelogram then we expect;

Parallel sides to be : WX // YZ   and XY // WZ

Additionally, we know parallel sides have equal gradient thus;

The slope of side WX= slope of side YZ and the slope of side XY= that of side WZ

However, from the information given, m of WX= 1/3 and that of YZ is -3, thus the two sides are not parallel to each other but perpendicular to each other because the product of their slope equals -1.

Learn More

Properties of a parallelogram :brainly.com/question/14626378#

Keywords : conclude, quadrilateral, parallelogram, slope, sides

#LearnwithBrainly

8 0
3 years ago
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