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Triss [41]
2 years ago
6

WILL GIVE BRAINLIEST IF RIGHT

Mathematics
2 answers:
Sindrei [870]2 years ago
8 0

Answer:

I think c

Step-by-step explanation:

When y=1 x=12

Sliva [168]2 years ago
4 0

Answer: The unit rate is 1/12

Step-by-step explanation:

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Solve for x<br> 4(1 - x) + 2x = -3 (x + 1)
Blababa [14]

Answer:

x = -7

Step-by-step explanation:

4(1 - x) + 2x = -3 (x + 1)

4 - 4x + 2x = - 3x - 3

- 4x + 2x + 3x = - 3 - 4

x = -7

8 0
3 years ago
What expression is equivalent to 5 (x+6)-2x+9.
myrzilka [38]
5x+30- 2x+9

3x+39 is the expression.
7 0
2 years ago
Plzzz helppp giving brainiest to the first one
aniked [119]

Answer:

Arsenic-74-is used to locate brain tumors. It has a half-life of 17.5 days. ... C. Find the amount remaining after 6 days from a 90-mg sample

4 0
2 years ago
Read 2 more answers
The yield of strawberry plants depends on the amount of fertilizer fed to the plants. Agricultural research shows that an acre o
kifflom [539]

Answer:

792\ \text{pounds}

Step-by-step explanation:

x_1=70 cubic feet of fertilizer is used in y_1=770 pounds of strawberries

x_2=90 cubic feet of fertilizer is used in y_2=990 pounds of strawberries

x=72 cubic feet of fertilizer is used

Linear interpolation is applied

y=y_1+\dfrac{(x-x_1)(y_2-y_1)}{x_2-x_1}\\\Rightarrow y=770+\dfrac{(72-70)(990-770)}{90-70}\\\Rightarrow y=792\ \text{pounds}

72 cubic feet of fertilizer will yield 792\ \text{pounds} of strawberries.

5 0
2 years ago
There is concern that increased industrialization may be increasing the mineral content of river water. Ten years ago, the silic
Tema [17]

Answer:

a) P value = 0.0013

b) No, it is not plausible that the silicon content of the water is no greater than it was 10 years ago

Step-by-step explanation:

The null hypothesis here is “Mean is equal to 5” while alternate hypothesis is that “Mean is greater than 5”

Given  

Mean = 5, x’ = 5.4 and sigma = 1.2 and n = 85

Z = x-u’/sigma/sqrt n

Substituting the given values, we get –  

Z = 3.02

A) P value = 0.0013 which is less than 0.05 and thus we will reject the null hypothesis

B) There is enough evidence to reject the null hypothesis  

6 0
2 years ago
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