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Anettt [7]
2 years ago
7

A= (5/2) b= (-1/7) Work out 2a + b as a column vector.

Mathematics
1 answer:
Svet_ta [14]2 years ago
4 0

Answer:

0.35714285714

You can search for any mathematical expression, using functions such as: sin, cos, sqrt, etc. You can find a complete list of functions here.

(

)

%

AC

7

8

9

÷

4

5

6

×

1

2

3

−

0

.

=

+

Rad

Deg

x!

Inv

sin

ln

π

cos

log

e

tan

√

Ans

EXP

xy

=

123

Fx

0.35714285714

You can search for any mathematical expression, using functions such as: sin, cos, sqrt, etc. You can find a complete list of functions here.

(

)

%

AC

7

8

9

÷

4

5

6

×

1

2

3

−

0

.

=

+

Rad

Deg

x!

Inv

sin

ln

π

cos

log

e

tan

√

Ans

EXP

xy

=

123

Fx

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Barbra can walk 3,200 meters in 24 minutes. How far can she walk in three minutes.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

To find how far she can walk in 3 minutes, we need to find how fast she can walk in 1 minutes. We do this by dividing the distance she walked by the time she walked. Lets do so.

3200/24=133.33

She walks 133.33 meters per minute. Now to find her distance in 3 minutes w multiply this number by 3.

133.33*3=400

Barbra walks 400 meters every 3 minutes.

3 0
3 years ago
Can anyone answer -4(3-x)-7x and show the work !
Dafna1 [17]
The answer is -12-3x
7 0
3 years ago
Pls help many thanks
salantis [7]

So, let's make these two values improper fractions so they're easier to work with. 4+\frac{1}{3}=\frac{12}{3}+\frac{1}{3}=\frac{13}{3} 3+\frac{1}{2}=\frac{6}{2}+\frac{1}{2}=\frac{7}{2}

So, to get the rate he grew in those months we have:

\frac{\frac{13}{3} \text{inches}}{\frac{7}{2}\text{months}} =\frac{26\text{inches}}{21\text{months}}

And to get the rate he grew in one month we have to divide both our numerator and our denominator by 21 to get:

\frac{\frac{26}{21} \text{inches}}{\text{month}}\approx \frac{1.24\text{inches}}{\text{month}} aka he grew 1.24 inches in a month.

7 0
2 years ago
Read 2 more answers
How many significant figures are there on 0.05050A​
Katen [24]

Answer:

2 Significant Figures

Step-by-step explanation:

The A and the .

7 0
3 years ago
20x3 - 45x2 + 21x + 25 \<br><br> 4x - 5
tiny-mole [99]

Answer:

80x3 - 180x2 + 109x - 20

—————————————

               4            

Step-by-step explanation:

4 0
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