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hoa [83]
3 years ago
10

Please help me I can't figure this out!!!!!

Mathematics
1 answer:
vaieri [72.5K]3 years ago
3 0
The answer would be 85cm^2
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The expression that is equal to (9×+3) -(5× -7)
Blababa [14]
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6 0
3 years ago
The formula d = 26t + 32.5 can be used to find the distance (d) between two cars after traveling (t) hours in opposite direction
Sindrei [870]

Answer:

C

Step-by-step explanation:

The formula given is:

d=26t+32.5

Where

d is the distance between two cars

and

t is the time it takes

We want the time it takes (so we need t) for the cars to be 117 miles apart (this is the distance). Thus, it means:

d = 117

t = ???

We plug in 117 into d and solve the equation for t. Shown below:

d=26t+32.5\\117=26t+32.5\\117-32.5=26t\\84.5=26t\\t=\frac{84.5}{26}\\t=3.25

So, it takes 3.25 hours

Correct answer is C

8 0
3 years ago
In Exploration 4.1.1 problem 3 pre calc
IrinaVladis [17]

The reference triangle is a right triangle and therefore, the properties of

the reference triangle are similar to right triangle properties.

The correct options are as follows;

  • The reference triangle always have a leg perpendicular to the <u>x-axis</u>, the hypotenuse is positive, and θ is the angle adjacent to the <u>x-axis and hypotenuse</u>.

<h3>Reasons</h3>

The reference triangle is formed by the construction of a perpendicular

to the x-axis from the terminal side of an angle, oriented in the standard

position.

Therefore;

  • The reference triangle is a right triangle that always has a leg perpendicular to the x-axis.

  • The hypotenuse is taken as positive, given that the magnitude of the hypotenuse is the square root of the sum of the squares of the legs.

  • In the first quadrant, the reference angle, θ, is the same as the standard position angle and it is given by the angle formed between the x-axis and the hypotenuse side.

The correct options are therefore;

In Trigonometry it is important that the right triangle (reference triangles)

have a consistent orientation. The reference triangles always have a leg

perpendicular to the <u>x-axis</u>, the hypotenuse <u>positive</u> and the θ is

adjacent to the <u>x-axis and hypotenuse</u>.

Learn more about reference angles and right triangles here:

brainly.com/question/10657736

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6 0
3 years ago
Question 2 of 5<br> Which best defines a ray?
Ede4ka [16]

Answer:

A ray is known as a half-infinity line. As it starts from a point while the other end is pointing towards the direction till infinity.

As already discussed ray shows a direction as well, therefore, it is a vector quantity and is denoted by an arrow over the line name.

As shown below a ray can be drawn. therefore,  which is starting from point A and continuing toward the right side infinity.

Step-by-step explanation:

I know math :)

5 0
2 years ago
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