What is the answer to this in math 9.5(-7.8)

Mathematics

2 answers:

Minchanka [31]3 years ago

7 0

Answer:

-74.1, is the answer.

Step-by-step explanation:

Anni [7]3 years ago

3 0

Answer: -74.1

Step-by-step explanation:

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Ms. Purdy bought coffee and orange juice for her coworkers in her office.She bought X cups of coffee at $2 per cup and Y cups of

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The X-intercept is 15.
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3 years ago

Solve the quadratic by factoring. x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

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3 years ago

Which graph shows the solution to the system of linear inequalities? y< 2x-5 y>-3x + 1

trapecia [35]

Answer:

See explanation

Step-by-step explanation:

Plot the solution sets to both inequalities.

1. For the inequality $y$ First, plot the dotted line $y=2x+5$ (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

$2\cdot 0-5=-5$

so the origin does not belong to the needed part. Shade the part, which does not include origin.

2. For the inequality $y>-3x+1.$ First, plot the dotted line $y=-3x+1$ (dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.