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goldenfox [79]
3 years ago
6

Which set of expressions are not equivalent?

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0
Expression,
• 4(3a) - 2(4a) and 4a2
is not equivalent.

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Convert 28/50to a percent
velikii [3]
The answer is 56%
You first divide 28 by 50=.56, then since it's a decimal, you move the decimal twice to the right to make a percentage=56%
3 0
3 years ago
Mr. D'Angelo hired a painter to paint the outside of his house green. The painter must mix 3 gallons of blue paint with every 5
Alborosie

Answer:

\frac{3}{5}

Step-by-step explanation:

3 gallons of blue paint and 5 gallons of yellow paint and this answer is a fraction so \frac{3}{5} is the answer.

5 0
2 years ago
Someone help pls:( !!!!!!!!!!
lesantik [10]

Answer:

Multiply both sides by -2 and reverse the inequality symbol

Step-by-step explanation:

since it is division you want to make it multiplication so that you can get the answer easier

-1/2w<12

it cancels out the -1/2 than just multiply 12 and -2 you get -24

w > -24

8 0
3 years ago
When x is 3, y is 15. If y varies directly as x, which equation relates x and y?
NARA [144]

Answer:

x5=y

Step-by-step explanation:

Let's say 3y=15

3 x 5 = 15, so y=5.

4 0
3 years ago
In triangle ΔABC, ∠C is a right angle and CD is the height to AB . Find the angles in ΔCBD and ΔCAD if: Chapter Reference a m∠A
Strike441 [17]

Answer:

Given A triangle ABC in which

 ∠C =90°,∠A=20° and CD ⊥ AB.

In Δ ABC

⇒∠A + ∠B +∠C=180° [ Angle sum property of triangle]

⇒20° + ∠B + 90°=180°

⇒∠B+110° =180°

∠B =180° -110°

∠B = 70°

In Δ B DC

∠BDC =90°,∠B =70°,∠BC D=?

∠BDC +,∠B+∠BC D=180°[ angle sum property of triangle]

90° + 70°+∠BC D =180°

∠BC D=180°- 160°

∠BC D = 20°

In Δ AC D

∠A=20°, ∠ADC=90°,∠AC D=?

∠A +  ∠ADC +∠AC D=180° [angle sum property of triangle]

20°+90°+∠AC D=180°

110° +∠AC D=180°

∠AC D=180°-110°

∠AC D=70°

So solution are, ∠AC D=70°,∠ BC D=20°,∠DB C=70°





5 0
3 years ago
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