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RideAnS [48]
3 years ago
10

The expressions a(8x+7) and 4x+3.5 are equivalent. What is the value of a?

Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0

Answer:

a=1/2

Step-by-step explanation:

From the question, the expression a(8x+7) is equivalent to 4x+3.5

     Which means that multiplying 8x by a gives 4x and multiplying 7 by a gives 3.5

So, we can write the following to find the value of a

a(8x+7)\equiv 4x+3.5

we can write the following

8ax=4x

\implies a=\frac{4x}{8x}= \frac{1}{2}

Hence the value of a is 1/2

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Find AB when given angle B 64 degress angle C 75 degrese and side a 19
jeka94

Answer:

about 28

Step-by-step explanation:

you have to use the sine rule = side you know * ( sin of angle opposing the side you want to know / sin of angle opposing the side you know)

AB = 19* (sin 75/ sin ( 180 -75-64) )

AB = 19 * ( sin 75 / sin 41) ≈ 27.9739...

4 0
3 years ago
Tinas rent will increase from $595 this year to $708 next year what is the percent change to the nearest percent
snow_lady [41]

Answer:

The answer rounded to the nearest percent is 19%.

Step-by-step explanation:

The formula for percent change is this:

((y2 - y1) / y1)*100

Let y1 be the first value (595) and let y2 be the second (708).

((702 - 595) / 595)*100

702 - 595 is 107 and 107/595 is approximately 0.188, multiplied by 100 is 18.8, which is rounded to 19%.

That is our solution.

<em>And that's an awfully small amount of rent to pay (at least in California).</em>

4 0
3 years ago
Read 2 more answers
The other 2 graphs.
aksik [14]

Answer:

D

Step-by-step explanation:

6 0
2 years ago
If f(x) = 8^x , find the value of f(2/3).
Licemer1 [7]

Answer:

4

Step-by-step explanation:

This is a substitution question

So we will have to substitute the value of x given into the given question

f(x)=8^x

And x is given as 2/3

So let's get to work

8^2/3 which means that cube root of 8 then square the answer

(3√8)^2

Cube root of 8 is 2

So we will have to square 2 to get 4

Therefore the final answer is 4

I believe you understand

8 0
3 years ago
Is the number 143 a multiple of three? explain how you know
natka813 [3]
No because you can't divide it by three.
6 0
3 years ago
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