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Masja [62]
3 years ago
5

Please help me with this ​

Mathematics
1 answer:
prisoha [69]3 years ago
3 0

Angle AOB + angle BOC = angle AOC

7x + 30 + 9x + 42 = 104

16x = 104 - 72

16x = 32

x = 2 degrees

Angle BOC = 9x + 42 = 18 + 42 = 60 degrees

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PLEASE HURRY
Fynjy0 [20]

Answer:

t=18 years

Step-by-step explanation:

A year has two semesters, then

n = 2v(t)=p(1+r/2)2t

3875.79 = 1900∗(1+(0.04/2))^2t

2.0398895 = (1+0.042)^2t

Apply natural logarithm on both sides

ln(2.0398895) = ln[(1+0.042)^2t]

Then simplify,

0.712896 = 2t∗ln(1.02)

t = 0.712896 / (2∗ln(1.02))

t=18 years

7 0
3 years ago
Read 2 more answers
Express (x + 10)^2 as a trinomial in standard form.
nydimaria [60]

Answer:

x2-20x+100

Step-by-step explanation:

You have to factor the expression in order to get your answer

Do this by expanding out the expression: (x-10)(x-10) Then factor by multiplying each of the components! Use the FOIL acronym to help you. FOIL stands for First, Outer, Inner, Last. Meaning multiply the first numbers of the expressions together, then the outers, then the inner two numbers, then the last two numbers of the expression.

Multiply x and x to get  , multiply x and -10 to get -10x, multiply -10 and x to get -10x, multiply -10 and -10 to get 100. Add them all together:  . Then combine like terms

5 0
3 years ago
Question 41. <br> answers :<br> a.) 27 1/2 b.) 3 1/4 <br> c.) 15/19 d.) 2/55
777dan777 [17]
W=5((19/4)+(3/4))
  =5(22/4)
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6 0
3 years ago
Find the equation of a line parallel to y - 5x = 10 that passes through the point (3, 10). (answer in slope-intercept form)
s344n2d4d5 [400]
Y - 5x = 10 can be written in the slope-intercept form as
y = 5x + 10

The slope-intercept form is y = mx + b, where m = slope, and b = y-intercept.

In this case, the 5 is the slope.

Parallel lines have equal slopes, so the line we need to find also has a slope of 5. Its equation is

y = 5x + b

We need to find what b is.

We can use the given point, (3, 10), in for x and y and solve for b.

10 = 5 * 3 + b

10 = 15 + b

-5 = b

Now that we know that b = -5, we replace b with -5 to get our equation

y = 5x - 5
7 0
3 years ago
Please please help!!!!!
serious [3.7K]

Answer:

188\sqrt{2}-8\sqrt{5} feet

Step-by-step explanation:

Well the perimeter is the sum of all sides that means

P= lenght + width + lenght + width

P=2(lenght + width)

so

P=2(2\sqrt{8}+3\sqrt{5}+45\sqrt{8}-7\sqrt{5} )\\\\P=2((2+45)\sqrt{8}+(3-7)\sqrt{5})\\\\P=2(47\sqrt{8}-4\sqrt{5})\\\\P=2(94\sqrt{2}-4\sqrt{5})\\\\P=188\sqrt{2}-8\sqrt{5}

6 0
4 years ago
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