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viktelen [127]
3 years ago
13

Write the expression below in standard form. 3ℎ − 2(1 + 4ℎ) Maths Class

Mathematics
1 answer:
kondaur [170]3 years ago
6 0

Answers

H= - 2/5

Step-by-step explanation:

3h - 2( 1 + 4h)

3h - 2 + 8h

-2+8h-3h

-2 + 5h

5h=-2

H= - 2 /5

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A scientist observes the bacteria’s growth. In the first observation, there were 12 bacteria, 24 in the second observation, 48 i
miv72 [106K]

Answer:

<u>Step-by-step explanation:96 in the fourth since they are adding the answer itself two times before you get the other like 12 bacteria and then 24 so that means 12 + 12 is 24 and the third one 48 so 24 +24 =48</u>

fourth 48 + 48=96

 fifth 96+96=192

sixth  192+192=384

seventh 384+384=768

last but not least 768+768 = 1536

so your answer is 1,536

7 0
2 years ago
Write an equation of a line that is perpendicular to the line y = 3/2x + 3 and goes through the point (-3, -8). Hint: Use the po
JulijaS [17]
Point-slope form looks like this: y - k = m(x - h) where m is the slope, k is the y-value and h is the x-value. For (-3, -8), -3 would replace h and -8 would replace k.

Slope-intercept form looks like this: y = mx + b where m is the slope and b is the y-value.

To solve the problem we must plug in the given coordinate and slope to the point-slope formula then change the point-slope form into slope-intercept form. But first we need to know what the slope is.

If a line is perpendicular to another line, their slopes are negative reciprocals of each other. So with the line y = 3/2x + 3, the slope for another line that is perpendicular has to be -2/3 because we switched the numerator and denominator and made it from positive to negative.

Now that we know the slope and the given coordinate, we can start solving.

Plug the givens into the point-slope formula y - k = m(x - h).
y - (-8) = -2/3(x - (-3))
y + 8 = (-2/3*x) - (-2/3*-3)
y + 8 = -2/3x + 2 Now we can convert the equation to slope-intercept form.
y + 8 - 8 = -2/3x + 2 - 8 Remember that what we do on one side we must do one the other, so we subtract 8 on the left <em>and </em>right to get y by itself.
y = -2/3x - 6 This equation is now in slope-intercept form y = mx + b, so this is the final result.

I hope this explanation made sense. If there is anything that I made look confusing, feel free to tell me and I'll try my best to explain!
8 0
3 years ago
A train travels with a constant speed of 108 km/h. How long will it take to travel a distance of 270 kilometers? PLEASE HELLLLLL
irinina [24]

Answer:

The answer is 2.5 hours. That's how long it would take the train to travel 270 kilometers.

mark me brainliest!

5 0
3 years ago
This is nonfunctional but I need to explain why
Anestetic [448]

Answer:

Step-by-step explanation:

........

4 0
3 years ago
Read 2 more answers
Find the equation of the linear function represented by the table below in slope-
Eva8 [605]

Answer:

f(x) = 5x - 5

Step-by-step explanation:

Let the equation of the linear function is,

f(x) = mx + b

Here, m = Slope of the graph

b = y-intercept

Slope of the line passing through (x_1,y_1) and (x_2,y_2) is given by,

m = \frac{(y_2-y_1)}{(x_2-x_1)}

From the table attached,

Slope of the line passing through (2, 5) and (6, 25) will be,

m = \frac{25-5}{6-2}

m = 5

Equation of the linear function will be,

f(x) = 5x + b

Since, a point (10, 45) lies on the function,

45 = 5(10) + b

b = 45 - 50

b = -5

Equation of the linear function will be,

f(x) = 5x - 5

4 0
3 years ago
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