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Galina-37 [17]
2 years ago
6

A triangle has side lengths of 39, 80, and 87. Is this triangle a right triangle?

Mathematics
2 answers:
Pani-rosa [81]2 years ago
6 0

Answer:

si

Step-by-ste

iren2701 [21]2 years ago
4 0

Answer:

Step-by-step explanation:

39²=1521

80²=6400

39²+80²=1521+6400=7921

87²=7569

7921≠7569

so it is not aright angled triangle.

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Simplify the following expression 65l/13q
natima [27]

Answer:

\dfrac{5l}{q}

Step-by-step explanation:

\dfrac{65l}{13q} = \dfrac{(13\cdot 5)l}{13q} = \dfrac{5l}{q}

3 0
3 years ago
Solve for x:<br><br> x + 3 = 8
artcher [175]
How generous
x+3=8
minus 3 both sides
x+3-3=8-3
x+0=5
x=5
5 0
3 years ago
SOMEONE HELP ME PLEASE
lawyer [7]

Answer:

y = 90

Step-by-step explanation:

You can use proportions to answer this question.

\frac{30}{-3} =\frac{y}{-9}

Cross multiply 30 to -9; -3 to y

-270=-3y

Isolate <em>y</em> by dividing -3 on both sides

y=90

8 0
2 years ago
Read 2 more answers
A student earned grades of​ B, B,​ A, C, and D. Those courses had these corresponding numbers of credit​ hours: 4,​ 5, 1,​ 5, 4.
antiseptic1488 [7]

Answer:

<h2> 1.69</h2>

Step-by-step explanation:

Let the five courses with their corresponding credit hours be represented as shown;

FST 201 = 4

FST 203 = 5

FST 112 = 1

FST 219 = 5

FST 223 = 4

If a student earned grades of​ B, B,​ A, C, and D respectively in those courses with the following grading system  A =​4, B =​3, C =​2, D =​1, and F =0, before we can get the student GPA, we need to know the total credit point for the five courses.

Credit point for each course = Number of credit hour * point for each grade

FST 201 = 4 * 4 = 16points (A)

FST 203 = 5 * 4 = 20points (A)

FST 112 = 1 * 4  = 4points (A)

FST 219 = 5 * 4 = 20points (A)

FST 223 = 4 * 4 = 16points (A)

Total credit point = 16+20+4+20+16 = 76points

Total credit point gotten by the student is calculated as thus;

FST 201 = 4 * 3 = 12points (B)

FST 203 = 5 * 3 = 15points (B)

FST 112 = 1 * 4  = 4points (A)

FST 219 = 5 * 2 = 10points (C)

FST 223 = 4 * 1 = 4points (D)

Total credit point gotten by the student = 45points.

student's Grade Point Average​ (GPA) = Total credit point/Total credit point gotten by the student = 76/45 = 1.69 (to 2dp)

5 0
3 years ago
How to factorise it?
Elanso [62]
1/4x3-1/4x75p^2

3/4-75/4p^2
7 0
3 years ago
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