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3 years ago

Solve: 5a + 6a = -11 What does A equal? A =

Mathematics

1 answer:

pochemuha3 years ago

8 0

Answer:

a = -1

Step-by-step explanation:

Combine like terms 6a + 5a = 11a

11a = -11

Divide -11 by 11

-11/11 = -1

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Someone help me plzzzzz ASAP PLZZ

Fed [463]

Answer:

37 m^2

Step-by-step explanation:

The shape can be broken down into a rectangle (on the top), two triangles (at the side) and another big rectangle (centre)

Area of one triangle

= 1/2*base*height

= 1/2*4*1

=2 m^2

Area of 2 triangles= 4m^2

Area of the small rectangle

= Length*breadth

= 1*3

= 3 m^2

Area of large rectangle in the same way

= 4*8

= 32m^2

Total area

= Sum of all the sub-areas

= 32+3+2

=37 meters^2

7 0

4 years ago

Helpppp pleaseeeeeee

dlinn [17]

4*9+6 / -3
multiply 4 and 9

36 + 6 / -3
add 36 and 6

42 / -3
divide

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7 0

3 years ago

Read 2 more answers

In 1970, a farmer using a two-row combine with a corn head could easily harvest 0.75 ha (1.85 acres) per hour and a typical corn

Anastaziya [24]

Answer:

The value is $w = 6.7 \%$

Step-by-step explanation:

Generally the productivity rate is mathematically represented as

$P_r = K * Z$

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha

Now considering 1970

The productivity rate is

$P_r = 0.75 *5000$

=> $P_r = 3750 \ kg/h$

Now considering 1940

The productivity rate is given as $P_R = 250 \ kg/h$

Generally the productivity ratio is mathematically ration is mathematically represented as

$w = \frac{P_R}{P_r} * 100$

=> $w = \frac{250}{3750} * 100$

=> $w = 6.7 \%$

5 0

4 years ago

Please explain thourougly thanks!

Nimfa-mama [501]

Answer:

There are 2 x-intercepts

Step-by-step explanation:

The equation has 2 x variables, so the graph would have 2 x -intercepts.

7 0

2 years ago

Read 2 more answers

Suppose a variable has a normal distribution with mean 67 and standard deviation 4. What percentage of the distribution is less

harkovskaia [24]

Answer:

The percentage of the distribution is less than 75 is 97.72%.

Step-by-step explanation:

Given,

Mean of the distribution,

$\mu=67$

Standard deviation,

$\sigma = 4$

Thus, the z-score of the score 75,

$z=\frac{x-\mu}{\sigma}$

$=\frac{75-67}{4}$

$=\frac{8}{4}$

$=2$

With the help of z-score table,

$P(x$

Hence, the percentage of the distribution is less than 75 is 97.72%.

5 0

3 years ago