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Lorico [155]
3 years ago
13

WILL GIVE BRAINLIEST! 7th GRADE MATH

Mathematics
1 answer:
AysviL [449]3 years ago
6 0

Answer:

Option (4)

Step-by-step explanation:

Point A is located at (0, 4) and point C is located at (-3, 5).

Let the point B is located at \frac{1}{4} the distance from A and C.

In other words ratio of the segments AB and BC = m : n = 1 : 3

Coordinates of a point (x, y) which divides a segment having ends (x_1,y_1) and (x_2,y_2) = (\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})

If the ends of the segment are (0, 4) and (-3, 5), coordinates of point B will be

= (\frac{1(-3)+4(0)}{1+3},\frac{1(5)+4(4)}{1+3})

= (-\frac{3}{3}, \frac{21}{3})

= (-1, 7)

Option (4) will be the answer.

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Write an equation of the line that passes through (2, -5) and is parallel to the line 2y = 3x + 10.
Leto [7]

Answer:

Use the given slope and point to substitute into the point-slope formula y−y1=m(x−x1).

Slope-intercept form:

y=3x²+4x−25

Point-slope form:

y+5=(3x+10)⋅(x−2)

Step-by-step explanation:

8 0
3 years ago
Given that r=(9,8,3),v=(6,7,-1)and w=(-3,3,7), evaluate (r+v) w
lakkis [162]

Answer:

(-45,45,14)

Step-by-step explanation:

(r+v)*w=((9,8,3)+(6,7,-1))*(-3,3,7)=(15,15,2)*(-3,3,7)=(-45,45,14)

Does this help (I'm not sure of the rightness of this answer), if it did, please mark brainliest

4 0
3 years ago
15. A band expects to have 16 songs on their next
stepladder [879]

Answer:

There will be 13 songs in the final album.

Step-by-step explanation:

i) number of songs expected = 16 songs

ii) the band wrrites 62.5% more

   therefore the band writes 16 \times ( 1 + 0.625) = 16 \times 1.625 = 26 songs

iii) During the editing process 50% of the songs are removed.

   Therefore there will be in the final album = ( 1 - 0.5) \times 26  = 0.5 \times 26 = 13 songs.

8 0
3 years ago
(-2)2+3 × (-5) <br> please helpe me answer this question
Tpy6a [65]

Answer:

(−2)(2)+(3)(−5)

=−19

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Sally launches a rocket off of a platform. The height of the rocket, in meters, can be modeled by the function, h(x) = -5(x - 3)
Lorico [155]

Answer:

Time = 3secs

Max height = 56m

Step-by-step explanation:

Given the height reached by the rocket modeled by the equation;

h(x) = -5(x - 3)² + 56 where;

x is in seconds

The rocket velocity at its maximum height is zero.

Hence dh/dx = 0

dh/dx = 2(-5)(x-3)

dh/dx = -10(x-3)

Since dh/dx = 0

0 = -10(x-3)

0 = -10x + 30

10x = 30

x = 3secs

<em>Hence it takes 3 secs to reach the maximum height.</em>

Get the maximum height reached by the rocket. Substitute x = 3 into the equation given;

Recall that:

h(x) = -5(x - 3)² + 56

If x  = 3

h(3) = -5(3 - 3)² + 56

h(3) = 0 + 56

h(3) = 56

<em>Hence the maximum height that the rocket reaches is 56m</em>

4 0
3 years ago
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