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PSYCHO15rus [73]
3 years ago
6

Im REALLY sorry but i need help with these

Mathematics
2 answers:
Gnom [1K]3 years ago
8 0
I also did this and im not sure if im right but i got A for the answer so i think its the first one
Sonbull [250]3 years ago
7 0

Answer:

m4=m1+m2

Step-by-step explanation:

m1+m2+m3=180

m3+m4=180

m3=180-m4

m1+m2+(180-m4)=180

m1+m2=m4

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Triangle QRS is translated 7 units right, then rotated 90 degrees clockwise about the origin. The vertices of triangle Q"R"S" ar
Goryan [66]

Answer:

Q (-6.6), R (-6.0), S (0.0)

Step-by-step explanation:

In the exercise we are asked to find the original coordinates with the given transforms, which means that we must apply the inverse of the indicated transformations.

Original coordinates: Q "(6, -1), R" (0, -1) and S "(0, -7)

When turning 90 ° counterclockwise, since we want the opposite, the following change occurs (the axes and the sign are inverted):

Q '(1.6), R' (1.0), S '(7.0)

Now we have to move to the left by 7 units, because it is the opposite of the right, only on the x axis, 7 is subtracted

Q (-6.6), R (-6.0), S (0.0)

7 0
4 years ago
18=a<br> Over 2 <br> How do you solve that as a one step
daser333 [38]
Multiply each side by 2

a=36

4 0
4 years ago
Two sides of a triangle are 6 m and 10 m in length and the angle between them is increasing at a rate of 0.06 rad/s. find the ra
Soloha48 [4]
Since this problem talks about rates of change, then the concept of calculus is very useful. But first, let's find at least two equations in order to solve this system. The first one is the area of a triangle written as

A = 1/2 ab sin θ, where a and b are the sides that from the angle θ. So, we substitute a=6 and b=10. That makes it:
A = 1/2 (6)(10)sin θ = 30 sin θ

Now, you differentiate implicitly (both sides simultaneously) with respect to time.

dA/dt = 30 cosθ (dθ/dt)

We replace dθ/dt = 0.06 rad/s, as mentioned in the problem. Then, the rate of change of the area of the triangle when θ = π/3 rad with respect to time is

dA/dt = 30cos(π/3) (0.06)
dA/dt = 1.8  m²/s

Therefore, the rate of change of the area of the triangle is 1.8 m² per second.
8 0
4 years ago
The table includes the cost of ordering different numbers of fence sections. Number of Sections (x) Cost in Dollars (y) 10 409 5
xenn [34]
200 sections will cost $7439.

We first see if the rate of change, the slope, is the same between data points.  If it is, the function will be linear.  We use the formula

m = (y₂ - y₁)/(x₂ - x₁)

For the first two data points, we have

m = (1889-409)/(50-10) = 1480/40 = 37

For the second two data points, we have

m = (4664-1889)/(125-50) = 2775/75 = 37

Now that we know the slope is the same, we can write the equation:
y - y₁ = m(x - x₁) 
y - 409 = 37(x - 10)
y - 409 = 37x - 370

Add 409 to both sides: 
y = 37x + 39

Using 200 as x,
y = 37(200) + 39 = 7439
3 0
4 years ago
Read 2 more answers
Gianna is paid $90 for 5 hours of work.<br><br> • How much money does Gianna make per hour?
Montano1993 [528]

Answer:

18 dollars per hour

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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