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scoundrel [369]

2 years ago

14

Consider the statement: 4−3+5=−6+8+4. This is a mathematically correct sentence.Is the sentence true or false? Explain how you k

now.

2 answers:

Vladimir79 [104]2 years ago

7 0

Answer:

This is true because 6 does infact equal 6

Step-by-step explanation:

First see if the solution is true by seeing if x = x

So solve both sides

4-3+5 = -6+8+4

1+5 = 2+4

6 = 6

krek1111 [17]2 years ago

5 0

True this answer is true

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What is 11/4-3/8= what is it or get me the right answer

likoan [24]

Answer:

2 3/8 is the answer

Step-by-step explanation:

11/4 - 3/8

We will find the LCM of 4 and 8, which is 8.

We will do 11/4*8, which 8/4 = 2 and 2*11 = 22

Then we will do 3/8*8 = 8/8 = 1 = 3*1 = 3

So the answer will be <u>22-3 </u> = 19

8 = 8

Mixed Fraction = 2 3/8

6 0

2 years ago

Could someone answer these 3 for me?

KengaRu [80]

Answer:

x=4.77

Angle 3=98.32 degrees

Angle 6= 81.68 degrees

Step-by-step explanation:

(Assuming these are parallel lines), Angle 3 and angle 5 are equal because they are alternate Angles. Therefore we can write the following equation to solves for x:

16x+22=3x+84 (angle 3=angle5)

Which we can now solve:

16x +22 - 22 - 3x=3x-3x+84-22

13x=62

13x/13=62/13

x=4.77 (2dp)

We can then use this x to calculate angle 3:

16(4.77)+22

76.33+22=98.32 degrees

Finally,

Angle 6 and angle 3 are interior angles, so they add up to 180 degrees.

So to find angle 6,we can just subtract angle 3 from 180:

180-98.32=81.68 degrees.

Hope this helped!

6 0

3 years ago

What is the area of the triangle

vagabundo [1.1K]

Answer:

150

Step-by-step explanation:

A=B*H/2

A=15*20/2

A=300/2

A=150

Ignore the hypotenuse btw

3 0

2 years ago

Read 2 more answers

Um hey can sombody help me on my math major test ill really mean alot

tatiyna

I could try but I’m only in 7th grade

8 0

2 years ago

Find the Measure of B<br><br>Topic: Inscribed Angles and Central Angles

Oxana [17]

Answer:

Option B

The measure of angle b is 75°

Step-by-step explanation:

Method 1

we know that

In a inscribed quadrilateral, the opposite angles are supplementary

so

∠a+60°=180° ------> equation A

∠b+105°=180° -----> equation B

To find the measure of angle b solve the equation B

∠b+105°=180°

Subtract 105° both sides

∠b+105°-105°=180°-105°

∠b=75°

Method 2

see the attached figure with letters to better understand the problem

we know that

The inscribed angle measures half that of the arc comprising

so

∠105°=(1/2)[arc ADC]

arc ADC=2*105°=210°

<em><u>Find the measure of arc ABC</u></em>

we know that

arc ABC+arc ADC=360° -----> by complete circle

arc ABC=360°-210°=150°

<u><em>Find the measure of inscribed angle b</em></u>

∠b=(1/2)[arc ABC]

substitute

∠b=(1/2)[arc 150°]=75°

8 0

2 years ago