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givi [52]
3 years ago
15

What is the value of 2×3 to the third power +1÷7+5×8

Mathematics
2 answers:
Bumek [7]3 years ago
8 0

Answer:

The answer would be 94.14


Norma-Jean [14]3 years ago
7 0
Well 2*3=6 then you got do the other work
1/7=7+5=12*8=96 then multiply 6 so 96*6=576
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The width of a rectangle is the length minus 3 units. The area of the rectangle is 10
sergeinik [125]

Answer:

w=2

Step-by-step explanation:

A=length times width (A=lw)

w= l-3

A=10

Substituting in, we get:

10= l(l-3)

Now, solve the equation.

10= l^{2}-3l

l^{2}-3l-10=0

(l+2) (l-5)=0 (factoring the equation)

Therefore, l= -2 or 5

Throw out the negative value because a length of rectangle will never be negative.

Now let's solve for width

Remember w=l-3

therefore

(5)-3=2

so, w=2

(honestly, this is easier to just do in your head. But here is the long form math if you happen to run into more complicated problems.)

3 0
3 years ago
Write two different expressions that<br> represent the quantity x decreased<br> by 30%.
s344n2d4d5 [400]

Answer:

Step-by-step explanation:

x - 30 = 14 - 3x

    4x = 44

      x = 11

Let's call the unknown number x

Now let's decrease it by 30, that is x-30

Now let's write out "14 decreased by three times the number", that is 14 - 3x

The problem says these are the same, that is x - 30 = 14 - 3x

We now want to isolate, or solve for, x

Move the x to one side of the equation by adding 3x to both sides

3x + x -30 = 14 - 3x + 3x

4x -30 = 14

Now move the 30 to the right hand side by adding 30 to both sides

4x - 30 + 30 = 14 + 30

4x = 44

Now all we have to do to get x is divide both sides by 4

4x/4 = 44/4

x = 11

4 0
2 years ago
Confused on this help plss
ValentinkaMS [17]

Answer:

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2

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4

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2

+

6

−

3

x+2({\color{#c92786}{4-x}})=2x+6-3x

x+2(4−x)=2x+6−3x

+

2

(

−

+

4

)

=

2

+

6

−

3

Step-by-step explanation:

follow me

8 0
3 years ago
Maureen is taking an antibiotic. The table below shows the amount of antibiotic f(t), in mg, that was present in her body after
MariettaO [177]
One way to test this is by using the equation for Ken on Maureen. Let's say in the first hour,

f(t) = 200(0.976)^1 = 195.2 mg

In the second hour,

f(t) = 200(0.976)^2 = 190.52 mg

In the third hour,

f(t) = 200(0.976)^3 = 186 mg

If you compare this with Maureen's data which is 150, 90 and 54 for the first, second and third hour, respectively, you will see that Maureen's rate is much faster. However, you cannot tell by what factor because the function is exponential, not a multiple. There is no constant difference between their rates. Therefore, we only know that Maureen's rate is much faster.

The answer is <span>Maureen's body eliminated the antibiotic faster than Ken's body.</span>
3 0
3 years ago
What is the intial value of the function represented by this graph (7,6) (0,3)<br>​
Vlad1618 [11]

Answer: 7

i took the test

7 0
3 years ago
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