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Taya2010 [7]
3 years ago
15

116,02 LC)

Mathematics
1 answer:
nadezda [96]3 years ago
5 0
B. Triangle B and Triangle D
Triangle A has all equal sides and Triangle C is a right triangle.
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Describe the cross section, please help
levacccp [35]
A cross section is the shape we get when cutting straight through an object. The cross section of this object is a triangle. It is like a view into the inside of something made by cutting through it.
6 0
3 years ago
Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours
uysha [10]

Answer:

\$(990-t)

Step-by-step explanation:

The correct question is

Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let t be the number of hours Susan worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month

Let

t -----> the number of hours that Susan work as a tutor

y ----> the number of hours that Susan work as a waitress

z ---> the combined total dollar amount she earned this month

we know that

t+y=90

y=90-t-----> equation A

we know that

The combined total dollar amount she earned this month is equal to the number of hours that Susan work as a tutor multiplied by $10 plus the number of hours that Susan work as a waitress multiplied by $11

z=10t+11y ----> equation B

substitute equation A in equation B

z=10t+11(90-t)

z=10t+990-11t

z=990-t

therefore

The expression for the combined total dollar amount is $(990-t)

3 0
3 years ago
Help me pls I don’t know how to do this
rusak2 [61]

Answer:

radius=6.68cm

Step-by-step explanation:

Formula to find radius:

r=\frac{C}{2\pi }

r=42/2\pi

r=42/2(3.14)

r=6.68cm

<em>hope this helps......</em>

6 0
3 years ago
What are the coordinates of point A?​
Ratling [72]

Answer:

  (d)  (7, -5)

Step-by-step explanation:

The x-coordinate is listed first in an ordered pair. It is found on the horizontal scale. The point is on the grid line halfway between 6 and 8, so is presumed to have an x-coordinate of 7.

The y-coordinate is listed second in an ordered pair. It is found on the vertical scale. The point is on the grid line halfway between -4 and -6, so is presumed to have a y-coordinate of -5.

The coordinates of point A are (x, y) = (7, -5).

__

<em>Additional comment</em>

As in the case here, you will often run across graphs that don't have markings on every grid line You are expected to be able to figure out the value of a grid line based on the spacing of the marked lines.

It is a good idea to get familiar with reading coordinates of a point on a graph, as you will be doing it a lot.

4 0
2 years ago
If sin ⁡x=−1/2, and 270° * <br> If 180°&lt;θ&lt;270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?
dolphi86 [110]

Answer:

For each of the three basic trig functions, (sin, cos, tan) there are three more which act as their reciprocals. (csc, sec, and cot respectively)


Reciprocals, of course, are flipped fractions. If you have some number x, the reciprocal can be expressed as .


An important property of reciprocals is that if you mutliply them together they will cancel out--take  for example.


Since secӨ is literally defined as the reciprocal of cosӨ, it is evident that



Read more on Brainly.com - brainly.com/question/505406#readmore

Step-by-step explanation:


3 0
3 years ago
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