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dmitriy555 [2]
3 years ago
13

What is the product of a+3 and −2a2+15a+6b2?

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
8 0

Answer:

<h3>            -2a³ + 9a² + 6ab² + 45a + 18b² </h3>

Step-by-step explanation:

(a + 3)×(−2a² + 15a + 6b²) =

= a×(−2a² + 15a + 6b²) + 3×(−2a² + 15a + 6b²) =

= -2a³ + <u>15a²</u> + 6ab² - <u>6a²</u> + 45a + 18b² =

= -2a³ + 9a² + 6ab² + 45a + 18b²

disa [49]3 years ago
5 0

Answer:

C on edg

Step-by-step explanation

Edg. 2021

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You roll two dice, what is the probability of rolling two even numbers?
Karolina [17]
The probability of rolling an even number on the first dice is 1/2(3/6)
The probability of rolling an even number on the first dice is also 1/2 (3/6)
So the probability of getting two even numbers on both dice is 1/2*1/2=1/4

4 0
3 years ago
if two angles are supplementary and one of the angles measures 43 degrees, what is the measure of the other angle
sweet-ann [11.9K]

Answer:

137 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees

180-43=137

6 0
3 years ago
Read 2 more answers
– THE ODDS IN FAVOR OF BORIS PENZED WINNING THE HOT
Bezzdna [24]

The probability that Boris will win the contest is:

P = 0.286

<h3>How to get the probability?</h3>

For some given odds a:b, the probability is just computed as the quotient between a and b, which gives:

P = a/b

In this case, the odds are 2:7, so the probability that Boris will win the contest is:

P = 2/7 = 0.286

Written in percentage form, we get:

P = 28.6%

If you want to learn more about probability:

brainly.com/question/24756209

#SPJ1

6 0
2 years ago
Cheryl painted her living room walls with two different colors. She painted part of the room yellow and another part green. If t
kramer

Answer:

Total percent of the room did she paint green = 60%

Step-by-step explanation:

Given - Cheryl painted her living room walls with two different colors. She painted part of the room yellow and another part green. If the surface area of the walls in her room is 720 ft² and she painted 288 ft² yellow.

To find - What percent of the room did she paint green ?

Proof -

Given that,

The surface area of the walls in her room = 720 ft²

Total area painted in yellow color = 288 ft²

So,

Total area painted in green color would be = 720 - 288 = 432 ft²

Now,

Let the total percent green color painted = x

So,

720 × x% = 432

⇒720*\frac{x}{100}  = 432

⇒ x = \frac{432*100}{720} = 60

∴ we get

Total percent of the room did she paint green = 60%

7 0
3 years ago
If C(m) = 0.50m + 30 represents the cost of renting a car, how many miles were driven if the cost is $130?
Dimas [21]
Your answer is 200 miles
3 0
3 years ago
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