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2 years ago

Can You Help me It’s hard

Mathematics

2 answers:

anyanavicka [17]2 years ago

8 0

Answer:

16.8 + (-18.6)

Step-by-step explanation:

A subtraction symbol and adding a negative are the same

swat322 years ago

4 0

The answer is A, subtracting a positive from a positive is the same as adding a negative to a positive

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Answer please n thank you :)

Norma-Jean [14]

Answer:45

Step-by-step explanation:

6 0

3 years ago

What is 10 times as much as 0.7.

weeeeeb [17]

The answer is 7
10•0.7= 7

6 0

2 years ago

PLEASE ANSWER I GIVE BRAINLIEST write an equation of a line with m=6 that passes through (7,-5)

iren [92.7K]

Answer:

y = 6x - 47

6x - y - 47 = 0

Step-by-step explanation:

$y - y_{1} = m(x - x_{1} ) \\ \\ plug \: x_{1} = 7 \\ y_{1} = - 5 \\ m = 6 \: in \: the \: above \: equation \\ y - ( - 5) = 6(x - 7) \\ \\ y + 5 = 6x - 42 \\ \\ y = 6x - 42 - 5 \\ \\ y = 6x - 47 \\ \\ or \: 6x - y - 47 = 0$

7 0

2 years ago

A force of 84N is applied to an area of<br> 15cm". Work out the pressure in N/cm².<br> cm3)

Tcecarenko [31]

Answer: 5.6 N/cm^2

============================================

Work Shown:

Pressure = (Force)/(Area)

P = F/A

P = (84 N)/(15 cm^2)

P = (84/15) (N/cm^2)

P = 5.6 N/cm^2

For every square cm, 5.6 newtons of force is applied.

-------------

Extra info:

If you wanted to convert this to pascals, then you would need to convert 15 cm^2 to 0.0015 square meters. Then apply the formula above to get 56,000 pascals. 1 pascal is equivalent to 1 N/m^2.

8 0

2 years ago

What is the total surface area of the square pyramid?

pochemuha

Answer:

Step-by-step explanation:

The square pyramid has exactly the same four triangles.

In order to find the whole surface area, we must find the area of one of the triangles and multiply them by 4.

Surface area of square pyramid = $\frac{bh}{2} * 4$

Where we know that b = 4 and h = 6.

Substituting into the formula should give us the answer 48.

7 0

2 years ago