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Nata [24]
3 years ago
8

It is almost the end of the grading period.I have 730 out of 880 points so far in my math class which means I currently have a B

(83%).There are 90 points remaining before grades come out.My teacher rounds each student's score to the nearest percent.What is the fewest number of points I need to get and end up with a grade of C (At least 70%) B (At least 80%) A ( At least 90%)
Mathematics
1 answer:
Murljashka [212]3 years ago
4 0
There is at least 90
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NEED URGENT HELP
AnnyKZ [126]

Answer:

32.5

Step-by-step explanation:

If CED is 65, then AEB is 65, therefore we can calculate that CEA is 115 because 180 - 65 = 115. Then we do 180 - 115 = 65 which is the sum of angles ACE and CAE so 65 / 2 = 32.5 which is CAE.

Hope this helped!

8 0
3 years ago
Analyze the diagram below and complete the instructions that follow. Find the area of QRS.
11Alexandr11 [23.1K]

<u>Answer-</u>

<em>The area of QRS is </em><em>238.7</em><em> sq units.</em>

<u>Solution-</u>

According to properties of supplementary angles,

m\angle R+124=180\\\\m\angle Q+132=180

So,

\Rightarrow m\angle R=180-124=56,\ m\angle Q=180-132=48

As the sum of measurement of all the angles in a triangle is 180, so

\Rightarrow m\angle S+m\angle R+m\angle Q=180

\Rightarrow m\angle S=180-m\angle R-m\angle Q

\Rightarrow m\angle S=180-56-48=76

Then the area of the triangle will be,

\text{Area}=\dfrac{1}{2}qr\sin S

=\dfrac{1}{2}\times 21\times 23.43\times \sin 76

=238.7\text{sq.units}

8 0
3 years ago
Solve for m &lt; L
s2008m [1.1K]

The cosine is the ratio of hypotenuse and base. Then the measure of the angle ∠L will be 60°.

<h3>What is trigonometry?</h3>

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The right-angle triangle is given below.

The length of the hypotenuse is 16 and the base length is 5.

Then the measure of the angle ∠L will be

cos L = 5 / 10

cos L = 1 / 2

      L = cos⁻¹ (1 / 2)

      L = 60°

More about the trigonometry link is given below.

brainly.com/question/22698523

#SPJ1

8 0
2 years ago
What is the volume of a rectangular prism with the dimensions: base 3 8 cm, height 1 3 cm, and length 3 4 cm
dusya [7]

The answer is 16,796 cm

6 0
3 years ago
Read 2 more answers
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amoun
Rudiy27

Answer:

She should leave a total of $78.

Step-by-step explanation:

To find this, we first need to find the tip amount. We can do this by multiplying the total by the tip percentage.

$65 * 20% = $13

Now that we have that, we need to add it to the cost.

$65 + $13 = $78

8 0
2 years ago
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