3 years ago

How do you solve this equation

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

8 0

I suggest using keep change flip

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I need help with this

Anestetic [448]

Answer:

13.5

Step-by-step explanation:

4+5 = 9.

9/2 = 4.5

4.5 * 3 = 13.5

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2 years ago

Which statement about triangles is true

Salsk061 [2.6K]

C is the correct answer. An equilateral triangle is a type of triangle.

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3 years ago

A 20 ft. ladder is used against a 15 ft. wall. What is the measure of the angle made by the ladder and the ground (nearest whole

Brrunno [24]

Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

The height of the wall, h = 15 ft

We know that,

$\sin\theta=\dfrac{h}{H}$

h is perpendicular and H is hypotenuse

So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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2 years ago

What is 2^5 in standard notation

elena-14-01-66 [18.8K]

2x2x2x2x2 is 2^5 in standard notation

8 0

3 years ago

Read 2 more answers

[!]Urgent[!] What is another way to summarize the outcome of this proof?

Marina CMI [18]

Answer:

B. Vertical angles are congruent

Step-by-step explanation:

The instructions are to prove that ∠ANR and ∠VNE are congruent, and ∠ANR and ∠VNE are vertical angles.

I hope this helps :)

8 0

2 years ago