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Aleonysh [2.5K]
3 years ago
14

HELPPPPPPPPPPPPPPPPPPPPPPP I WIL GIVE BRAINLIEST ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0
Answer : A

The word "increased" indicates a plus sign. The word "is equal" helps show us show that something is = to 15
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Solve the system of equations using substitution.
faltersainse [42]

Answer:

( \frac{1}{3}, 3 )

Step-by-step explanation:

Given the 2 equations

y = 9x → (1)

6x - y = - 1 → (2)

Substitute y = 9x into (2)

6x - 9x = - 1, that is

- 3x = - 1 ( divide both sides by - 3 )

x = \frac{1}{3}

Substitute x = \frac{1}{3} into (1) for corresponding value of y

y = 9 × \frac{1}{3} = 3

Solution is ( \frac{1}{3}, 3 )

6 0
2 years ago
The equations of four lines are given. Identify which lines are parallel.
Stella [2.4K]
Lines 2 & 3 are parallel.
7 0
2 years ago
The specifications for manufacturing a steel rod stipulate that the length must be 8.225 ± 0.125 inches. The Minimum allowable l
zmey [24]

Answer:

Minimum - 8.1 inches

Maximum - 8.35 inches

Step-by-step explanation:

The specifications for manufacturing a steel rod stipulate that the length must be 8.225 ± 0.125 inches.

This means that the minimum length must not be 0.125 inches less than 8.225 inches and the maximum length must not be 0.125 inches greater than 8.225 inches.

The minimum length is therefore:

8.225 - 0.125 = 8.1 inches

The maximum length is therefore:

8.225 + 0.125 = 8.35 inches

6 0
3 years ago
I need help and please explain how to actually solve these please! Thankyou
Bezzdna [24]
Realize the tangent function has a period of 180°, so when your calculator (or memory) tells you
.. θ = arctan(-1)
.. θ = -45°
you can translate that value into the desired range by adding multiples of 180° to get the two solutions ...
.. θ = 135°
.. θ = 315°
7 0
3 years ago
Simplify the product. 8p(-3p2+6p-2)
Temka [501]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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