3 years ago

Which expressions are equivalent to g+h+ (j+k)? Check all that apply.

Mathematics

2 answers:

denis23 [38]3 years ago

8 0

It might be the third one

Vsevolod [243]3 years ago

6 0

According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.

So answers 1. and 3. are correct.

<em>Thanks Associative Property!</em>

You might be interested in

Is 3pi/4pi a rational number?

Natali5045456 [20]

Answer:No

Step-by-step explanation:

Pi is irrational

4 0

3 years ago

In ΔPQR, the measure of ∠R=90°, the measure of ∠Q=46°, and RP = 97 feet. Find the length of PQ to the nearest tenth of a foot.

Whitepunk [10]

Answer:

PQ = 134.9 feet

Step-by-step explanation:

sin 46 = 97/PQ

0.7193 = 97/PQ

PQ = 134.85 feet

5 0

3 years ago

Please solve this geo problem

Sunny_sXe [5.5K]

Step-by-step answer:

The first step in solving a problem of geometry and trigonometry is to draw a diagram, with all the given information in it. The attached image does just that.

Here, we have (horizontal) distance of building to the tower is 400'.

We see two right triangles, each with a leg of 400' (horizontal).

The vertical distances are denoted h1 and h2 for the angles of elevation 24 and 20 degrees respectively.

Using the definition of tangent, we have

h1= 400tan24=178.1

h2=400tan20=145.6

The height of the tower is therefore h1+h2=178.1+145.6=323.7 feet

4 0

3 years ago

Solve the equation.<br> 4+ 14 = – 2(7x-9)

Tamiku [17]

Answer:

-63

Step-by-step explanation:

4 0

3 years ago

Tabitha collects quarters from different states. The value of her collection is $17.75. How many quarters does she have in her c

kvasek [131]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers