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3 years ago

4.3 rounded to the nearest hundredth,ones are tenths

Mathematics

1 answer:

GarryVolchara [31]3 years ago

4 0

4.0
is going to be your answer

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If ab = 9 and a² + b² = 81, then (a+b)² = ?

Andre45 [30]

Answer:

Step-by-step explanation:

Through some clever algebra, we can combine our first two equations using the fact that

$(a+b)^2=a^2+2ab+b^2$

We have the a² and the b² in the equation $a^2+b^2=81$ , and we <em>almost </em>have a 2ab in the equation $ab=9$ . To get that 2ab, we can simply double both sides of the first equation to get $2ab=18$ . From there, we'll add the first two equations together, giving us the summed equation

$a^2+b^2+2ab=81+18\\a^2+2ab+b^2=99$

And since $(a+b)^2=a^2+2ab+b^2$ , we can equivalently say that

$(a+b)^2=99$

5 0

3 years ago

There are 4 blueberry, 6 raisins, and 2 plain bagels in a bag. Mike randomly selects two bagels without replacing the first bage

rodikova [14]

Answer:

The probability that he selects a raisin bagel and then a plain bagel is $\frac1{11}$ .

Step-by-step explanation:

Probability:

The ratio of the number of outcomes of favorable event to total number of all possible outcomes is called probability of the favorable event.

$Probability=\frac{\textrm{The number of favorable outcomes}}{\textrm{Total number of all possible}}$

Given that, there are 4 blueberry, 6 raisins and 2 plain bangles in a bag.

Total number of bangles= (4+6+2)

= 12

The probability that he selects a raisin

$=\frac{\textrm{Number of raisin bangles}}{\textrm{Total number of bangles}}$

$=\frac{6}{12}$

$=\frac12$

Total number of remaining bagels is =(12-1)=11

After selecting a raisin bagel,the probability that he selects a plain bangle is

$=\frac{\textrm{Number of plain bangles}}{\textrm{Total number of bangles}}$

$=\frac{2}{11}$

Selecting of a raisin bangle and a plain bangle are both independent event.

The probability that he selects a raisin bagel and then a plain bagel is

$=\frac{1}2\times\frac{2}{11}$

$=\frac1{11}$

3 0

3 years ago

¿El número 10.452 es divisible por 2, 3, 5, 6 y 10?

Papessa [141]

2,3,6 - yes
5,10 - no

6 0

3 years ago

Write an expression that gives the area of the shaded region in the figure.

Jet001 [13]

Answer:

Area = 88 square units

Step-by-step explanation:

The length of the blue rectangle can be found by subtracting 15 and 4, which equals 11. The width of the blue rectangle can be found by subtracting 6 from 14, which equals 8.

area = length x width

area = 11 x 8

area = 88 square units

6 0

4 years ago

if the perimeter of Milo's rectangular backyard Is 16 feet. which of the following could be the dimensions of the yard? circle a

postnew [5]

Answer:

the answer is a and d

Step-by-step explanation:

6 + 6 + 2 +2 = 16

3 + 3 + 5 + 5 = 16

to find perimeter, double each factor and add :)

6 0

3 years ago