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7nadin3 [17]
2 years ago
7

Which number is greater than 3.45? O A. 3.7 O B. 3.3 C. 3.26 D. 3.19 O E. 3.05

Mathematics
2 answers:
bezimeni [28]2 years ago
5 0

Answer:

A

Step-by-step explanation:

if you add a 0 to 3.7 it makes it 3.70 so if you can see that .70 is bigger then .45! :)

gregori [183]2 years ago
5 0

Answer:

A.3.7

Step-by-step explanation:

this is because you add a zero behind the numbers and which numbers that ae the  highest after the first .2 numbers is your answer.

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Given the trinomial, what is the value of the coefficient 'B' in the factored form?. . 2x^2 + 14xy - 36y^2 = 2(x + By)(x - 2y).
soldi70 [24.7K]
The value of the coefficient B is 9.

2(x+By)(x-2y)
=2(x^2 -2xy +Bxy -2By^2)
=2x^2 -4xy + 2Bxy - 4By^2

The original form is 2x^2 + 14xy - 36y^2

-36y^2 = -4By^2
B= 9
-4xy +2Bxy= 14xy
xy(-4 +2B)= 14xy
-4 + 2B = 14
2B = 18
B=9
3 0
3 years ago
Read 2 more answers
The Volunteer Club raked leaves at several senior citizens’ homes in the neighborhood. If each group of three students could rem
ozzi

12 students would create 4 groups, if they get 8 cubic meters per hour and they have 5 hours, the equasion would look like: (8*5)*4)=160. They would clear 160 cubic meters in 5 hours.

7 0
3 years ago
Brenden Read 3/4 of a book that was 7/8 inches thick. How much of the book, in inches, did he read?
Firdavs [7]

Answer:

A

Step-by-step explanation:

To find how much 3/4 of a number is, multiply 3.4 by the number. Since the book is 7/8 inches thick, Brenden read 3/4 * 7/8.

To multiply fractions, multiply straight across numerator and denominator.

3/4 * 7/8 = 3*7/ 4*8 = 21/32

7 0
3 years ago
Abram rode in a cab for 9 miles. The taxi driver charged $2.50 for the first z
MAVERICK [17]

Answer:

Abram payed $12.50 for the cab ride in all.

7 0
2 years ago
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
Pavlova-9 [17]

Answer:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean \mu. And we can estimate this parameter with a confidence interval given by this formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

7 0
3 years ago
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