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3 years ago

−3x+6=39 What is the value of x?

Mathematics

2 answers:

s2008m [1.1K]3 years ago

5 0

Answer:

x=-11

Step-by-step explanation:

hoa [83]3 years ago

5 0

Answer:

X = -11 Hope this helps, work will be in comments

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100 POINTS AND BRAINLIEST ANSWER

polet [3.4K]

Answer:

Just took the test,

1)d, 3

2)a, -13

3) c, y=-2x+6

4) c, f'(a)=8a+2

Step-by-step explanation:

For #3, graph f(x)=-x^2+5. Next graph y=-2x+6. You will see that the added equation touches at exactly the point (1,4). this make it the tangent line equation

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3 years ago

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What is the length of segment BD? Round your answer to the nearest hundredth. triangles ABC and ABD in which the triangles share

hichkok12 [17]

Answer:

BD = 4.99 units

Step-by-step explanation:

Consider the triangle ABD only.

The angle formed is 31 degrees which occurs between two sides that are AD and BC.

We know that for a right angled triangle, the angle can always be taken as an angle between hypotenuse and base.

Thus, The perpendicular sides is then 3 units, where base is BD and Hypotenuse is AD

Using formula for tanθ

tanθ = Perpendicular/Base

tan31 = 3/BD

0.601 = 3/BD

BD = 3/0.601

BD = 4.99 units

6 0

4 years ago

PLEASE HELP! Thank you if you helped! Will give Brainliest

pogonyaev

Rent all

55.5/3 = 18.5

74/4 = 18.5

it costs 18.5 per day

1. y = 18.5 x where y =cost and x=days

A-1

10.99 per 1/2 day

10.99 * 2 =21.98 per day

2. it costs 21.98 per day from A-1

Rentall is the better deal because it is only 18.50 per day versus 21.98 per day

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3 years ago

The graphs show the amount of sugar in two kinds of juice.

gizmo_the_mogwai [7]

Answer:

Pat a) The unit rate of graph at left is $25\ \frac{grams}{cup}$

Part b) The unit rate of graph at right is $40\ \frac{grams}{cup}$

see the attached figure

Step-by-step explanation:

we know that

The unit rate of a linear equation is the same that the slope of the linear equation

step 1

Find the slope of the graph at left

This graph represent a proportional relationship (because the line passes through the origin)

The slope is equal to the constant of proportionality k

$k=\frac{y}{x}$

we have the point (1,25)

substitute the values in the formula

$k=\frac{25}{1}=25\ \frac{grams}{cup}$

step 2

Find the slope of the graph at right

we have the points (2,80) and (3,120)

This graph represent a proportional relationship (because the line passes through the origin)

The slope is equal to the constant of proportionality k

$k=\frac{y}{x}$

Is necessary only one point to determine the constant of proportionality

take the point (2,80)

substitute the values

$k=\frac{80}{2}=40\ \frac{grams}{cup}$

Verify

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the points (2,80) and (3,120)

substitute the values

$m=\frac{120-80}{3-2}$

$m=\frac{140}{1}=40\ \frac{grams}{cup}$

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3 years ago

Jenny had $424.15 in her checking account before going shopping for school supplies. She put checks for $69.15 and $92.45 into h

uysha [10]

Answer:

Step-by-step explanation:

B.)$133.93

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3 years ago

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