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3 years ago

Which equation best describes the line in the graph?

Mathematics

2 answers:

4vir4ik [10]3 years ago

8 0

Answer:b

Step-by-step explanation:

Give brainliest

wlad13 [49]3 years ago

3 0

Answer:

Step-by-step explanation:

The question is looking for an equation in slope-intercept form which is y=mx+b where m is the slope and b is the y-intercept. The y-intercept is +4, which all of the answers show, so you must find the slope.

The slope is the change in y over change in x, more commonly referred to as rise over run. So count how many units the graph changes vertically and horizontally, in this case, 1 up and 2 right, so the slope is equal to 1/2. If you have a graph where the line shifts up and left, or down and right, then the slope is negative. Additionally, one way to visually check your work is to remember slopes equal to less than -1 or greater than +1 will be steeper while fraction slopes will make the slope flatter; basically the closer to zero the less steep.

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Please help with problem and show work

luda_lava [24]

Answer:

x = 7

Step-by-step explanation:

The image below shows the relationship between secants chords and tangents.

Imagine that the letters in the image represent the numbers in the actually problem

E would equal 9

C would equal 12

and A would equal x

We would then use the same formula C² = E * ( E + A ) to solve for x , but once again instead of using letters we use the numbers in the problem

We would have 12² = 9( 9 + x )

we now solve for x

Step 1 simplify and distribute

12²=144

9 * 9 = 81

9 * x = 9x

we would then have 144 = 81 + 9x

step 2 subtract 81 from each side

144 - 81 = 63

81 - 81 cancels out

we now have 63 = 9x

step 3 divide each side by 9

63 / 9 = 7

9x / 9 = x

we're left with x = 7

7 0

3 years ago

I have this question about volume of spheres, can you help me out ?

monitta

Given:

The diameter of the sphere = 42 cm

To find the volume of the given sphere.

Formula:

The volume of a sphere is given by $V=\frac{4}{3} \pi r^3$

The radius is given by $r=\frac{d}{2}=\frac{42}{2}=21$

<u>Volume of the sphere:</u>

The volume of the sphere is given by

$V=\frac{4}{3} (3.14)(21)^3$

Simplifying, we get;

$V=\frac{4}{3}(3.14)(9261)$

Multiplying the terms, we have;

$V=\frac{116318.16}{3}$

Dividing, we get;

$V=38772.7$

Thus, the volume of the sphere is 38772.7 cubic cm.

6 0

4 years ago

kasha has a part-time job. she is paid £5.40 for each hour she works. last week kasha worked 24 hr and then she spent $99.7 work

Luden [163]

Answer:

£30

Step-by-step explanation:

I assume you made a mistake and that you are trying to calculate it using the same currency.

£5.40 per hour × 24 hours = £129.60

She spent £99.70 so: £129.60 - £99.70 = £29.90

Rounded off to 2 significant figures this makes £30

8 0

4 years ago

I need help!! Please

Andre45 [30]

I don’t know sorry mannnn

8 0

3 years ago

The expression 1/2bh gives the area of a triangle where b is the base of the triangle and h is the height of the triangle. What

iren [92.7K]

Hey there!

Let's plug these values into the formula.

1/2(7(4))

1/2(28)

Therefore, our area would be 14 sq cm.

I hope this helps!

8 0

3 years ago

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