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zlopas [31]
3 years ago
10

Number 7 please!!!! Need help!

Mathematics
1 answer:
Oxana [17]3 years ago
6 0

Answer:

Step-by-step explanation:

Good luck

Mmssq

892

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What is the value of the following expression 1.8 + 0.5(y + 6) - 2 t the power of 3 when y = 14?
Vikentia [17]

Answer:

The value of given expression is 3.8.

Step-by-step explanation:

Given:

1.8+0.5(y+6)-2^3

We need to find the simplified value of given expression using y =14

Solution:

Now we will substitute y =14 we get;

1.8+0.5(y+6)-2^3\\\\1.8+0.5(14+6)-2^3

Now using PEDMAS we will first solve the parenthesis we get;

1.8+0.5\times20-2^3

Now we will solve the exponent function we get;

we know that;

2^3=8

So we can say that;

1.8+0.5\times20-8

Now we will solve the multiplication operation.

1.8+10-8

Now we will perform addition operation.

11.8-8

And finally we will perform subtraction operation.

3.8

Hence The value of given expression is 3.8.

3 0
4 years ago
Solve the quadratic by factoring.<br> x^2-5x-31=5
torisob [31]

Answer:

x =  - 4\: or \: x =  9

Step-by-step explanation:

make one side equal to zero:

{x}^{2}  - 5x - 36 = 0

find two factors that multiply to -36 and add to -5 (-9 & 4)

{x }^{2}  - 9x + 4x - 36 = 0

factorise

x(x - 9) + 4(x - 9) = 0

(x + 4)(x - 9) = 0

solve for x

x =  - 4 \: or \: x = 9

5 0
4 years ago
Evaluate 13+ 6/y when y=6
liubo4ka [24]

Answer: 14

Step-by-step explanation:

13 + 6/6 = ?

13 + 1 = 14

3 0
3 years ago
Raise to the power: (–am)^3
GrogVix [38]
Here is another way to write it -a^3 × m^3
4 0
3 years ago
Read 2 more answers
Can someone explain how to do this problem correctly
agasfer [191]

Answer:

88 degrees.

Step-by-step explanation:

The circle in question must be equal to 360 degrees if arc CDA is equal to a number greater than 180.

If 360 degrees is the total measure, and arc CDA is equal to 272 degrees (Which I noticed you placed wrong, it should be in the bigger half of the circle rather than the little half.).

So to get your final answer, you subtract 272 from 360.

360 - 272 = 88 degrees.

3 0
3 years ago
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