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scoray [572]
3 years ago
11

Help me to understand this

Mathematics
1 answer:
geniusboy [140]3 years ago
4 0
Triangle....
three angles<span> of any </span>triangle<span> have sum equals 180
</span>so
m<A + m<B +m<C = 180 then substitute values and solve for x

I can't see clearly on m<A...is it the value 35? if so
x+35+65 = 180
x+100 = 180
x = 180 -100
x = 80
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A section of a roof is shaped like a triangle. The base of the triangle is 17 feet and the height is 9 feet. What is the area of
Oxana [17]

Answer:

Area of Triangle Section= 76.5

Step-by-step explanation:

Area of a triangle= A=\frac{h*b}{2}

A=\frac{h*b}{2}

A=\frac{17*9}{2}

A=76.5

3 0
3 years ago
What constant acceleration is required to increase the speed of a car from 30 mi/h to 52 mi/h in 5 seconds? (Round your answer t
Alenkasestr [34]

Answer:

a = 9.84 m/s^2

Step-by-step explanation:

Given:

Initial speed (Vi) = 30 mi/h = 67.1 m/s

Final speed (Vf) = 52 mi/h  = 116.32

Time period(t) = 5 seconds

We know the formula of acceleration in terms of initial speed, final speed and time:

a = \frac{Vf -Vi}{t}

a = \frac{116.32-67.10}{5}

a = 9.84 m/s^2

6 0
3 years ago
Please show your work.
levacccp [35]

The amount of money you have is $ 20864.521

<h3><u><em>Solution:</em></u></h3>

Given that you invested $15,000 dollars for 11 years at 3% annual interest compounded continuously.

To find: total amount of money

<em><u>The compound interest formula for compounded continously is given as:</u></em>

A = p e^{rt}

Where "p" is the principal

"r" is the rate of interest

"t" is the number of years

Here in this problem, p = 15000

t = 11 years

r = 3 \% = \frac{3}{100} = 0.03

<em><u>Substituting the values in formula we get,</u></em>

A = 15000e^{0.03 \times 11}\\\\A = 15000e^{0.33}\\\\A = 15000 \times 1.390968\\\\A = 20864.521

Thus the amount of money you have is $ 20864.521

5 0
3 years ago
Of 140 7th grade students 15% earn the presidential physical fitness award how many students earn the award
kiruha [24]
21 students will receive the award.

Hope this helps.

8 0
3 years ago
A fish tank, in the shape of a rectangular prism with dimensions 51 centimeters by 39 centimeters by 28 centimeters, is 95% fill
PtichkaEL [24]
Step 1
find the total volume of the fish tank
volume of a rectangular prism=51*39*28----> 55692 cm³

step 2
find the 95% of the volume of the tank fish
95%=55692 cm³*.95-----> 52907.40 cm³

step 3
find the 5% of the volume of the tank fish
5%=55692*0.05----> 2784.6 cm³
or
55692-52907.4=2784.6 cm³


step 4
 find the volume of the log
volume of a cylinder=pi*r²*h
r=5 cm
h=44 cm
volume of a cylinder=pi*5²*44-----> 3454 cm³

step 5
<span>water spills out of the tank=volume of the log-volume of the 5% of the tank
</span>water spills out of the tank=3454 cm³-2784.6 cm³-----> 669.40 cm³

the answer is
669.40 cm³
3 0
3 years ago
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