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3 years ago

I need help i don’t get this

Mathematics

1 answer:

sleet_krkn [62]3 years ago

4 0

Answer:

b = 2

c = -1

d = -2

Step-by-step explanation:

b = 2*1 = 2

c = -3 +b = -3+2 = -1

d = c*2 = -1 * 2 = -2

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20 percent of 70 plants

snow_tiger [21]

20% of 70 plants= 14
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4 years ago

The coordinates of AB are A(-5, -1) and B(-2, -6). If AC : CB = 3 : 7, what are the coordinates of point C?

bixtya [17]

$\text{Let the coordinates of AB are }A(-5,-1), \text{ and }B(-2, -6)\\
\\
\text{let the coordinate of th point C be (x, y), such that}\\
\\
AC:CB=3:7\\
\\
\text{By the section formula, we know that if P(x,y) lies on a line segment AB}\\
\text{where, }A(x_1,y_1), \ B(x_2,y_2)\text{ and satisfy the ratio, }AP:PB=m:n, \text{ then}$

$P=\left ( \frac{mx_2+nx_1}{m+n}, \ \frac{my_2+ny_1}{m+n} \right ).\\
\\
\text{So using this formula, we get for the given problem}\\
\\
C=\left ( \frac{3(-2)+7(-5)}{3+7}, \ \frac{3(-6)+7(-1)}{3+7} \right )\\
\\
\Rightarrow C=\left ( \frac{-6-35}{10}, \ \frac{-18-7}{10} \right )\\
\\
\Rightarrow C=\left ( \frac{-41}{10}, \ \frac{-25}{10} \right )\\
\\
\Rightarrow C=\left ( -4.1, \ -2.5 \right )$

Coordinates of the point C is: (-4.1, -2.5)

6 0

3 years ago

Predict which statements are true about the intervals of the continuous function. Check all that apply.

shepuryov [24]

Answer: Option 2

Option 4

Option 5

I just did it on Ed genuity and it is correct

3 0

4 years ago

Read 2 more answers

If you have a tank and you fill it up but on 3/4 of it how much is it in a percentage

alexgriva [62]

Answer:

75% 3/4 is .75

Step-by-step explanation:

Hope this helped your answer is 75%

could really use brianliest

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4 years ago

Nick walked 5 miles to reach his aunt's house. From there he traveled 8 miles to the shopping mall on a bicycle. He traveled 80%

iragen [17]

The number of hours Nick took to reach the shopping mall in terms of r is ; 3.14 hours.

Rate is a measure of a quantity using another quantity as the basis.

Analysis:

speed travelling on foot = r

distance travelled on foot = 5 miles

time taken = 5/r

speed travelling on bicycle 80 percent faster than on foot is 1.8r

distance travelled on bicycle = 8 miles

time taken = 8/1.8r = 40/9r

total time taken to get to the mall = 5/r + 40/9r = 85/9r

speed while walking = 3 miles per hour = r

time taken = 85/9 x 3 = 3.14 hours

In conclusion, number of hours Nick took to reach the shopping mall in terms of r is 85/9r is 3.14 hours.

Learn more about Time to reach a distance : brainly.com/question/17146782

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7 0

2 years ago