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2 years ago

F(2/9) if f(x)=3x+1/3

Mathematics

1 answer:

Harman [31]2 years ago

4 0

Answer:

Step-by-step explanation:

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A lighthouse casts a 128-ft shadow. A nearby lamppost that measures 5

olga nikolaevna [1]

Answer: 80 feet

Step-by-step explanation:

We can write these as fractions and do cross multiplication with the numerator being the height of the object while the denominator being the length of the shadow:

5 * 128 = 8x

640 = 8x

80 = x

Thus, the height of the lighthouse is 80 feet tall.

8 0

3 years ago

Please answer! solve for x

OLEGan [10]

Answer:

it 180 degree try to add them all the subtract with 180 and that equals x

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

An object is moving at a speed of 6 miles per month. Express this speed in feet per hour

patriot [66]

Answer:

44 feet/hour

Step-by-step explanation:

6mi/month(5280ft/1mi)(1month/30days)(1day/24hrs)

Assuming the month has 30 days, object moves at 44 feet/hour. You want all the units to cancel till you get the ones you need, in this case feet/hr.

7 0

3 years ago

What are the solutions of the quadratic equation? 4x^2+34x+60=0

insens350 [35]

Answer:

Option 3) -6,-5/2

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$4x^{2} +34x+60=0$

$a=4\\b=34\\c=60$

substitute in the formula

$x=\frac{-34(+/-)\sqrt{34^{2}-4(4)(60)}} {2(4)}$

$x=\frac{-34(+/-)\sqrt{196}} {8}$

$x=\frac{-34(+/-)14} {8}$

$x_1=\frac{-34(+)14} {8}=-\frac{20}{8}=-\frac{5}{2}$

$x_2=\frac{-34(-)14} {8}=-6$

6 0

2 years ago

The wholesale price for a pillow is $3.50 . A certain department store marks up the wholesale price by 60%. Find the price of th

4vir4ik [10]

Answer:

5.60

Step-by-step explanation:

3.50 + 60 % (2.10)= 5.60

7 0

3 years ago