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3 years ago

Classify the triangle with side lengths of 12, 16, 20

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

5 0

Answer:

The triangle is a right triangle

Step-by-step explanation:

We use the pythagorean Theorem which is a^2+b^2=c^2

Now we have 12^2+16^2=20^2

Solve: 144+256=400

400=400

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Algebra 1:Write an algebraic expression for 91 more than the square of a number

Bumek [7]

Give the number a name. You can call it anything. I'll call it ' G '.

The square of the number is G² .

91 more than that is G² + 91 .

3 0

4 years ago

There are 77 students in the student council. The ratio of girls to boys is 7:4. How many girls are in the student council?

Len [333]

77 students
G : B
7 : 4

11 units (7+4) = 77
1 unit = 7

7 units = 49

so there are 49 girls in the student council

hope this helped :)

8 0

4 years ago

A company redesigned its website. It wants to

bogdanovich [222]

Answer:

with a sample survey

Step-by-step explanation:

Since they want to know if the users find the website helpful, the best way to collect data straight from the user would be a survey for them to share their opinion

6 0

3 years ago

Read 2 more answers

Triangle S R Q is shown. Angle S R Q is a right angle. An altitude is drawn from point R to point T on side S Q to form a right

Jet001 [13]

Answer:

Option B.

Step-by-step explanation:

It is given that ΔSRQ is a right angle triangle, ∠SRQ is right angle.

RT is altitude on side SQ, ST=9, TQ=16 and SR=x.

In ΔSRQ and ΔSTR,

$m\angle S=m\angle S$ (Reflexive property)

$m\angle R=m\angle T$ (Right angle)

By AA property of similarity,

$\triangle SRQ\sim \triangle STR$

Corresponding parts of similar triangles are proportional.

$\dfrac{SR}{SQ}=\dfrac{ST}{SR}$

Substitute the given values.

$\dfrac{x}{9+16}=\dfrac{9}{x}$

$\dfrac{x}{25}=\dfrac{9}{x}$

On cross multiplication we get

$x^2=25\times 9$

$x^2=225$

Taking square root on both sides.

$x=\sqrt{225}$

$x=15$

The value of x is 15. Therefore, the correct option is B.

7 0

4 years ago

Read 2 more answers

Tyree is determining the distance of a segment whose endpoints are A(–4, –2) and B(–7, –7).

insens350 [35]

Answer:

√34

Step-by-step explanation:

Use distance formula: $d = \sqrt{(x2-x1)^2 + (y2-y1)^2}$

d = $\sqrt{(-7+4)^2 + (-7 +2)^2}$ = √34

6 0

3 years ago