MATHEMATICS HIGH SCHOOL

Divided 2/7 divided by 1/3

Answers

Answer 1

Answer:

Theansweris6/7........

Answer 2

Answer:

Answer:

$(6)/(7)$

Step-by-step explanation:

cross multiply

2 x 3 = 6

7 x 1 = 7

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9/4 is between what two numbers

Answers

9/4 is between 2 and 3

a test has 25 questions and is worth a total of 100 points. it consists of multiple choice that are worth 8 points each and short answer that are worth 3 points each. how many multiple choice are there on the test?

Answers

Answer:

Step-by-step explanation:

8*5=40 and then 20 short answer that are 3 each. that makes up the rest of the 60 points

Answer:

There would be 5 multiple choice questions

Step-by-step explanation:

5x8=40

20x3=60

25 questions for total of 100 points

what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution

Answers

$x^2+14x=-130\nx^2+14x+49=-81\n(x+7)^2=-81$

no solutions in $\mathbb{R}$

in $\mathbb{C}$
$x+7=-√(-81) \vee x+7=√(-81)\nx=-7-√(-81) \vee x=-7+√(-81)\nx=-7-9i \vee x=-7+9i\n$

Which set of numbers can represent the side lengths, in centimeters, of a right triangle?A. 8,12,15
B. 10,24,26
C. 12,20,25
D. 15,18,20

Answers

For right angle triangles, we can apply pythagora's theorem, which states that the square of the longest side, the hypotenuse, is equivalent to the sum of the squares of the other two sides; mathematically this is: c^2 = a^2 + b^2. We check to see which one of the options satisfy this equation, taking the longes side to be c. In the case of B, 26^2 = 676 and 10^2 + 24^2 = 676, so B is the answer.

The correct option is $\boxed{{\mathbf{option B}}}$ .

Further explanation:

Pythagoras theorem is used in a right angle triangle to find one of the side of the triangle.

The longest side in the right angle triangle is the hypotenuse.

Pythagoras theorem can be expressed as,

${H^2}={P^2}+{B^2}$

Here, $H$ is the hypotenuse, $B$ is the base and $P$ is the perpendicular.

Step by step explanation:

Step 1:

Option A: $8,12,15$

The longest side is 15.

Therefore, consider 15 as hypotenuse and the remaining sides are perpendicular and base.

Now apply the Pythagoras theorem and substitute the value of perpendicular and base.

$\begin{gathered}{H^2}={P^2}+{B^2}\hfill\n{H^2}={12^2}+{8^2}\hfill\n{H^2}=144+64\hfill\nH=√(208)\hfill\n\end{gathered}$

It can be seen that the length of the hypotenuse is $√(208)$ but we have given 15.

Therefore, the given length of sides is not of right angle triangle as it does not satisfy the Pythagoras theorem.

Thus, option A is not correct.

Step 2:

Option B: $10,24,26$

The longest side is 26.

Therefore, consider 26 as hypotenuse and the remaining sides are perpendicular and base.

Now apply the Pythagoras theorem and substitute the value of perpendicular and base.

$\begin{gathered}{H^2}={10^2}+{24^2}\hfill\n{H^2}=100+576\hfill\nH=√(676)\hfill\nH=26\hfill\n\end{gathered}$

It can be seen that the length of the hypotenuse is $26$ and we also have given 26.

Therefore, the given length of sides is of right angle triangle as it satisfies the Pythagoras theorem.

Thus, option B is correct.

Step 3:

Option C: $12,20,25$

The longest side is 25.

Therefore, consider 25 as hypotenuse and the remaining sides are perpendicular and base.

Now apply the Pythagoras theorem and substitute the value of perpendicular and base.

$\begin{gathered}{H^2}={P^2}+{B^2}\hfill\n{H^2}={12^2}+{20^2}\hfill\n{H^2}=144+400\hfill\nH=√(544)\hfill\n\end{gathered}$

It can be seen that the length of the hypotenuse is $√(544)$ but we have given 25.

Therefore, the given length of sides is not of right angle triangle as it does not satisfy the Pythagoras theorem.

Thus, option C is not correct.

Step 4:

Option D: $15,18,20$

The longest side is 20.

Therefore, consider 20 as hypotenuse and the remaining sides are perpendicular and base.

Now apply the Pythagoras theorem and substitute the value of perpendicular and base.

$\begin{gathered}{H^2}={P^2}+{B^2}\hfill\n{H^2}={15^2}+{18^2}\hfill\n{H^2}=225+324\hfill\nH=√(549)\hfill\n\end{gathered}$

It can be seen that the length of the hypotenuse is $√(549)$ but we have given 20.

Therefore, the given length of sides is not of right angle triangle as it does not satisfy the Pythagoras theorem.

Thus, option D is not correct.

Learn more:

Learn more about the all right triangles are isosceles brainly.com/question/839014

Learn more about in a right triangle, angle c measures 40°. the hypotenuse of the triangle is 10 inches long. what is the approximate length of the side adjacent to angle c? brainly.com/question/4419078

Learn more about the distance between the points brainly.com/question/6278187

Answer details:

Grade: High school

Subject: Mathematics

Chapter: Triangles

Keywords: side, lengths, distance, Pythagoras theorem, triangle, hypotenuse, base, perpendicular, right angle triangle, longest side, equation, satisfy, centimeters.

The 76 term of the arithmetic sequence 8, 14,20,