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3 years ago

Find the value of y if the line through the two given points is to have the indicated slope.(4,y) and (2,4), m= -3

Mathematics

1 answer:

attashe74 [19]3 years ago

8 0

M=-3=(4-y)/(2-4)=(4-y)/-2
Now we isolate y by multiplying by -2 on both sides
6 = 4-y -> y = -2

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Select the correct answer. A model rocket was launched from the top of a building. The rocket's approximate height can be modele

garri49 [273]

Answer:

13 seconds.

Step-by-step explanation:

Given

$h = -4.9(t - 13)(t + 2).$

Required

Determine a reasonable solution for t

To do this, we equate h to 0.

$h = -4.9(t - 13)(t + 2).$ becomes

$0 = -4.9(t - 13)(t + 2).$

Divide through by -4.9

$0 = (t - 13)(t + 2).$

Reorder the expression

$(t - 13)(t + 2) = 0.$

Split

$t-13 = 0$ or $t + 2 = 0$

This gives:

$t = 13$ or $t = -2$

But time can't be negative, So:

$t = 13$

6 0

2 years ago

Find the area of the figure shown below and choose the appropriate result.

Alisiya [41]

Answer:

6cm

Step-by-step explanation:

8 0

3 years ago

Ella is a landscape photographer. One weekend at her gallery she sells a total of 52 prints for a total of $2,975. A small paint

rosijanka [135]

<h2>Answer:37 paintings of $50 and 15 paintings of $75</h2>

Step-by-step explanation:

Let $x$ be the number of paintings Ella sells for $ $50$ .

Let $y$ be the number of paintings Ella sells for $ $75$ .

Profit made through $ $50$ paintings is $50x$

Profit made through $ $75$ paintings is $75y$

So,total profit is given by $50x+75y$

It is given that total profit is $ $2975$

So, $50x+75y=2975$ ..(i)

Given that the total number of prints is $52$

So, $x+y=52$ ..(ii)

using (i) and (ii),

$50x+75(52-x)=2975\\50x+3900-75x=2975\\25x=925\\x=37$

$y=52-x=52-37=15$

7 0

3 years ago

Read 2 more answers

The distance between two cities on a map is 3.5 centimeters the map uses a scale in which 1 centimeter represents 20 km what is

Juli2301 [7.4K]

Answer:

1 cm = 20 km

so 3.5 cm would equal : 3.5 * 20 = 70 km

hope it helps ;)

Step-by-step explanation:

5 0

2 years ago

“Solve for x” x/2 + x/5 = 1

AlladinOne [14]

Answer:

x=1/7

Step-by-step explanation:

x/2+x/5=1

make same denominators;

5x/10+2x/10=1

simplify;

7x=1

x=1/7

4 0

3 years ago