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Harlamova29_29 [7]
3 years ago
7

HELP ME PLEASE!! Also explain how you know your answer is correct. Thank you!

Mathematics
1 answer:
Snezhnost [94]3 years ago
8 0

Answer:

C

Step-by-step explanation:

At least means "Equal to, or more". So C

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Identify the hypothesis and conclusion of each conditional statement. Then write each sentence in if-then form
lukranit [14]

Answer:

If you place two collinear points, then they will fall on the same line

Step-by-step explanation:

?

3 0
3 years ago
Lorinda has 10 books on her bookshelf. 6 of these books have blue covers, and 4 have red covers.
crimeas [40]

Answer:

there is 60% chance it is blue and 50% its a fantasy one.

Step-by-step explanation:

6 out of 10 = 60%

3 out of 6 or 2 out of four is 50%

5 0
3 years ago
What happens to the volume of a cylinder when the radius is doubled?
wlad13 [49]
When the radius is doubled, the volume of a cylinder quadruple

5 0
3 years ago
Read 2 more answers
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Zinaida [17]

Answer:

-1.683

Step-by-step explanation:

Given :

Group 1 :

x1 = 667 ; n1 = 10 ; s1 = 20

Group 2 :

x2 = 679 ; n2 = 14 ; s2 = 15

The test statistic assuming equal variance :

x1 - x2 / √[Sp² * (1/n1 + 1/n2)]

sp² = [(n1 - 1)*s1² + (n2 - 1)*s2²] ÷ (n1 + n2 - 2)

Sp² = [(10 - 1)*20² + (14 - 1)*15²] = 296.59

Test statistic =

(667 - 679)/ √[296.59 * (1/10 + 1/14)]

-12 / 7.1304978

Test statistic = - 1.682

8 0
2 years ago
PLEASE HELP ME NOW URGENT
timama [110]

ANSWER

y   = 3 \pm \sqrt{21}

EXPLANATION

The quadratic equation is:

{y}^{2}  - 6y - 12 = 0

Group variable terms:

{y}^{2}  - 6y = 12

Add the square of half, the coefficient of y to both sides.

{y}^{2}  - 6y  + ( - 3) ^{2} = 12 + ( - 3) ^{2}

{y}^{2}  - 6y  + 9= 12 + 9

The LHS us now a perfect square trinomial:

{(y - 3)}^{2}= 21

Take square root:

y - 3 =  \pm \sqrt{21}

y = 3 \pm \sqrt{21}

The first choice is correct.

8 0
3 years ago
Read 2 more answers
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