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sladkih [1.3K]
3 years ago
10

Need help don’t understand

Mathematics
2 answers:
adoni [48]3 years ago
7 0

there is an equation for straight lines which goes

y-y,=m(x-x,)

where( x, , y, ) is any coordinate on the line and m is the gradient

so your answer is

y-7= -2(x-4)

does this make sense?

Kruka [31]3 years ago
3 0
It would go -2 then the remaining number. I understand I just recently got done with this type of math, it’s a pain.
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Find three consecutive even integers that sum up to -48
Igoryamba
We can write the equation: x + x + 2 + x + 4 = -48, where x is the least digit and x + 4 is the greatest. We get 3x + 6 = -48, 3x = -54. x = -18, so x + 2 is -20, and x + 4 is -22. Therefore, the 3 consecutive even integers that sum to -48 are -18, -20, and -22.
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Hope this helps!
4 0
4 years ago
10 POINTS + BRAINLIEST ANSWER!!
gregori [183]
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4 0
3 years ago
In triangle XYZ the measure of angle YXZ is 50°, and the measure of angle XYZ is 75°. What is the measure of angle XZY in degree
VLD [36.1K]

Answer:

55°

Step-by-step explanation:

A triangle always has 180° and if we know 2 angles we can just subtract those 2 angles from 180 to find the last angle, which is 55

5 0
3 years ago
Read 2 more answers
find the numerical lengths of the diagonals of the parallelogram below where FB=4x-2 FD=3y-1 FC=3x and FA=3y-3. solve using a sy
Andre45 [30]

Answer:

BD = 28

AC = 24

Step-by-step explanation:

Diagonals of a parallelogram bisect each other.

4x − 2 = 3y − 1

3x = 3y − 3

Using elimination to solve the system of equations, subtract the second equation from the first.

(4x − 2) − 3x = (3y − 1) − (3y − 3)

4x − 2 − 3x = 3y − 1 − 3y + 3

x − 2 = 2

x = 4

Substitute into either equation to find y.

3(4) = 3y − 3

12 = 3y − 3

15 = 3y

y = 5

The length of BD is:

4(4) − 2 + 3(5) − 1 = 28

The length of AC is:

3(4) + 3(5) − 3 = 24

8 0
3 years ago
Solve the system of equations.
tino4ka555 [31]

<u>Answer:</u>

(2, 7) or (-6, 1)

<u>Step-by-step explanation:</u>

We are given two equations:

y=x+5; and

y = x^2+5x-7

Since y is the subject for both the equations so we can put the values of y equal to each other to get:

x+5=x^2+5x-7

x^2+5x-x-7-5=0

x^2+4x-12=0

Factorizing the expression to get:

x^2-2x+6x-12=0

x(x-2)+6(x-2)=0

(x-2) (x+6) = 0

x=2, x= -6

Putting x = 2 and x = -6 in any of the equations to get the values of y:

y=x+5

y =2+5

y=7

and

y =(-6)+5

y=1

Therefore, solution to these equation is (2, 7) or (-6, 1).

5 0
3 years ago
Read 2 more answers
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