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2 years ago

12

Lillian is sanding on this ladder. Think of the ground as 0 on a number line. The steps of the ladder are the same distance apar

t.

2 answers:

Len [333]2 years ago

8 0

5 steps on the ladder she's on

Mumz [18]2 years ago

3 0

5/8
I need to write more to post this so yea

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The sum of 3 and 7 times a number is 45

san4es73 [151]

Answer:

4.5

Step-by-step explanation:

The sum of 3 and 7 is 10

then what number to you multiply 10 by to get 45

45 ÷ 10 = 4.5

so the answer is 4.5

6 0

2 years ago

Sheila wants to lose weight for an upcoming wedding. She currently weighs 186 pounds and her goal is to weigh 140 pounds. After

mart [117]

Answer:

w=186-2t

Step-by-step explanation:

you can solve this too

just do w=186

3 0

1 year ago

Find the slope of the line that passes through (1, 1) and (-3, -5)

Illusion [34]

Answer:

3/2

Step-by-step explanation:

(1,1) and (-3,-5)

$\frac{-5-1}{-3-1}$

Above is the difference of teh y values divided by the difference of x values

we get -6/-4 which is 3/2

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2 years ago

Gina takes 2 of her friends out for

gulaghasi [49]

$16.59, add all the prices together and multiply by 3

6 0

1 year ago

What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?

sesenic [268]

we have

$f(x)=2x^{2}-10x-3$

we know that

To find the zeros of the quadratic equation equate to zero

$2x^{2}-10x-3=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$2x^{2}-10x=3$

Factor the leading coefficient

$2(x^{2}-5x)=3$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$2(x^{2}-5x+6.25)=3+12.5$

$2(x^{2}-5x+6.25)=15.5$

Rewrite as perfect squares

$2(x-2.5)^{2}=15.5$

$(x-2.5)^{2}=7.75$

$(x-2.5)=(+/-)\sqrt{7.75}$

$(x-2.5)=(+/-)2.78$

$x1=(+)2.78+2.5=5.284$ or $x1=\frac{\sqrt{31}}{2} +2.5$

$x2=(-)2.78+2.5=-0.284$ or $x2=-\frac{\sqrt{31}}{2} +2.5$

therefore

<u>the answer is</u>

$x1=5.284$ or $x1=\frac{\sqrt{31}}{2} +2.5$

$x2=-0.284$ or $x2=-\frac{\sqrt{31}}{2} +2.5$

see the attached figure to verify

3 0

2 years ago

Read 2 more answers