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3 years ago

3 + 3 + 3 + + 4 + 4 =

Mathematics

2 answers:

Gennadij [26K]3 years ago

8 0

Answer:

3+3+3+3=12

4+4+4=12

Hope this helps

Scilla [17]3 years ago

4 0

Answer:

3 + 3 + 3 +3 =12

4 +4+4=12

Step-by-step explanation:

written in bord letters are answer

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The circumference of a circle is 28 inches.what is the length of the radius of this circle

sleet_krkn [62]

Answer:

The radius is 14 inches

3 0

3 years ago

Triangle ABD is a right-angled triangle, with ∠ABD = 90◦ . The point C lies on side BD. CD has length 20 cm. ∠CDA = 35.8 ◦ and ∠

pishuonlain [190]

The length is 46.10 cm.

Since ∠BCA = 50.5°, ∠ACD = 180-50.5 =129.5°. This means that ∠CAD = 180-(129.5+35.8) = 14.7°. We can now use the law of sines;

sin 14.7/20 = sin 35.8/x

Cross multiply:
x*sin 14.7 = 20*sin 35.8

Divide both sides by sin 14.7:
x = (20*sin 35.8)/(sin 14.7) = 46.10

6 0

3 years ago

State the domain and range for the following relation. Then determine whether the relation represents a function

Marysya12 [62]

Answer:

Domain: {XS, Red, Yellow, 45, A}

Range: {Size, Color, Number, Letter}

Step-by-step explanation:

The domain of the function shown in the mapping above are all variables that fall under "A word", while the range consists of all variables under "category".

The mapping shows that the relation represents a function, because each domain variable has exactly one range variable. No single domain variable is mapped to two different range variable.

The correct answer is:

Domain: {XS, Red, Yellow, 45, A}

Range: {Size, Color, Number, Letter}

8 0

4 years ago

Two angles are congruent and supplementar

Romashka [77]

<span>You are told that the two angles are supplementary. That means that when you add the measure
of angle A (call it mA) and the measure of angle B (call it mB) the resulting sum is 180 degrees.
This relationship can be written in equation form as:
.
mA + mB = 180
.
You are also told that the two angles are congruent. This means that their measures
are equal. You can write this relationship as the equation:
.
mA = mB
.
From this second equation you can see that wherever you have mA you can substitute mB
in its place because they are equals. So go back to the equation:
.
mA + mB = 180
.

In place of mA substitute mB. This makes the equation become:
.
mB + mB = 180
.
On the left side you can see that the sum is 2 times mB or 2*mB. Make this simplification
to get:
.
2*mB = 180
.
To solve for mB divide both sides of this equation by 2. When you do that division the
equation reduces to:
.
mB = 180/2 = 90
.
This tells you that the measure of angle B is 90 degrees, and that means that the measure
of angle A is also equal to 90 degrees because the two angles are congruent.

I hope this helps!</span>

6 0

4 years ago

Pls help like plsss and thx

Mandarinka [93]

1.5 glad I could help!

8 0

3 years ago

Read 2 more answers