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3 years ago

HELP PLSSS I'm Desperate

Mathematics

2 answers:

Arisa [49]3 years ago

7 0

Answer: 27 33 15 90

Step-by-step explanation: 1 yard is 3 feet

tester [92]3 years ago

5 0

Answer:

it would be

Step-by-step explanation:

that should be correct

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Y=4x+7 y=-3x alive by graphing

Allisa [31]

Not sure what alive by graphing means, but these are the equations on a graph. Red is y=4x+7 and blue is y=-3x.
:^)

7 0

4 years ago

If i earn $8.10 and hour and worked 6 hours a day how many days would i need to work to get 470 hours.

prisoha [69]

Since 470/6 = 78.333 it would take you 78.333 days to work 470 hours.

4 0

3 years ago

In preparing a certain ointment, a pharmacist used 28.35 g of zinc oxide instead of the 31.1 g called for. Calculate the percent

Vilka [71]

Answer: 9.70%

Step-by-step explanation:

The formula to find the percentage error is given by :-

$\%\text{ error}=\dfrac{|\text{Estimate-Actual}|}{\text{Actual}}\times100$

Given : Actual mass of zinc oxide used by pharmacist = 28.35 g

Estimated mass of zinc oxide used by pharmacist =31.1 g

Now, $\%\text{ error}=\dfrac{|31.1-28.35|}{28.35}\times100$

i.e. $\%\text{ error}=\dfrac{2.75}{28.35}\times100$

i.e. $\%\text{ error}=9.70017636684\approx9.70\%$

Hence, the percentage of error on the basis of the desired quantity.= 9.70%

5 0

3 years ago

Does anyone know this?

zzz [600]

Answer:

-3

Step-by-step explanation:

Since x=1, we can simplify the equation to 9+7y=-12.

To find the value of 7y, we first have to find what is missing.

-12-9=-21, so 7y has to be equal to -21. -21/7 equals -3, so y=-3.

7 0

3 years ago

6k^3+10k^2−56k and 5(7k−3)(3k−7)share a common binomial factor. What binomial factor do they share?

goldenfox [79]

Answer:

Step-by-step explanation:

$6k^3+10k^2-56k\\2k(3k^2+5k-28)\\=2k[3k^2+12k-7k-28]\\=2k[3k(k+4)-7(k+4)]\\=2k(k+4)(3k-7)$

common factor is 3k-7

8 0

3 years ago