3 years ago

Square of 5x+1 by 5x

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

Answer:

5x(5x+1)^2

= 5x(25x^2+10x+1)

= 125x^3+50x^2+5x

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Joe nas to take two quizzes tomorrow. He nas only enough time to study one of them. • The science quiz has 7 true-or-false quest

Nostrana [21]

Answer:

Step-by-step explanation:

Science questions are T/F. That's .5 or $\frac{1}{2}$ chance to get it right.

7 questions. Each with a $\frac{1}{2}$ .

That's $(\frac{1}{2})^{7}$

$(\frac{1}{2})^{7}$ = $\frac{1}{128}$ = .0078 = .008 rounded

English questions are multiple choice. 4 choices. That's .25 or $\frac{1}{4}$

3 questions. Each $\frac{1}{4}$

That's $(\frac{1}{4})^{3}$

$(\frac{1}{4})^{3}$ = $\frac{1}{64}$ = .0156 = .016 rounded

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2 years ago

Find the x-intercepts of the parabola with vertex (5,-4) and y-intercept (0,96). Write your answer in this form: (x1,y1),(x2,y2)

lesya692 [45]

Answer:

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

Step-by-step explanation:

we know that

The equation of the given parabola is

$(y-k)=a(x-h)^{2}$

we have

the vertex is the point (5,-4)

substitute

$(y+4)=a(x-5)^{2}$

The y-intercept is the point (0,96)

substitute and solve for a

$(96+4)=a(0-5)^{2}$

$100=a(25)$

$a=100/25=4$

The equation of the vertical parabola is equal to

$(y+4)=4(x-5)^{2}$

Find the x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$4=4(x-5)^{2}$

Simplify

$1=(x-5)^{2}$

Rewrite

$(x-5)^{2}=1$

square root both sides

$(x-5)=(+/-)1$

$x=(+/-)1+5$

$x=(+)1+5=6$

$x=(-)1+5=4$

therefore

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

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3 years ago

A jet flies at a rate of 1.3x10 to the 6 feet per hour. Written in scientific notation, which is the best estimate of how many f

Semenov [28]

This is scientific notation

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3 years ago

Read 2 more answers

Christopher bought a new watch at the store when they were having a 20\%20% off sale. If the regular price of the watch was \$48

Aleonysh [2.5K]

Answer:

38.4

Step-by-step explanation:

48*20%=9.6 48-9.6=38.4

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3 years ago

2(1 - 3y) - 13x ik the answer idk how to show the work plz help KEY: y = -9 x = 4

AURORKA [14]

Answer:

The answer is 4.

Step-by-step explanation:

2(1 - 3y) - 13x

2(1−(3)(−9))−(13)(4)

56-52

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3 years ago

Square of 5x+1 by 5x​

Square of 5x+1 by 5x