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kykrilka [37]
2 years ago
13

NEEDING HELP ASAP PLEASE :( click on photo

Mathematics
1 answer:
LiRa [457]2 years ago
6 0

9514 1404 393

Answer:

  (1, 1)

Step-by-step explanation:

Did you watch the video?

The y-coefficients have opposite signs and one is a multiple of the other. It is convenient to divide the second equation by 2 and add that to the first.

  (5x -2y) +1/2(4x +4y) = (3) +1/2(8)

  7x = 7 . . . . simplify

  x = 1 . . . . .  divide by 7

__

  4(1) +4y = 8 . . . . substitute for x in the second equation

  4y = 4 . . . . . . . .  subtract 4

  y = 1 . . . . . . . . . . divide by 4

The solution is (x, y) = (1, 1).

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Use the distance formula to determine the distance points (-5,5) and (1,-3)
VikaD [51]
For points (x1,y1) and (x2,y2)
D=\sqrt{(x2-x1)^2+(y2-y1)^2}

(-5,5)
(1,-3)
(x,y)
x1=-5
y1=5
x2=1
y2=-3

D=\sqrt{(x2-x1)^2+(y2-y1)^2}
D=\sqrt{(1-(-5))^2+(-3-5)^2}
D=\sqrt{(6)^2+(-8)^2}
D=\sqrt{36+64}
D=\sqrt{100}
D=10


8 0
2 years ago
1.Which Measure correctly Completes the statement.
Nuetrik [128]
The answer to number 1 is C. Not sure how to get that, I just got it off line converting it with a website.

The answer to number 2 in B, also got that offline by converting it.

3.) Area of a circle:
Radius-16
16×16×3.14=803.84 rounded to the nearest number is 804.

Since this says ESTIMATED we look for the closest answer to 804.
The answer is C. 805 square meters. hope it helps!!!!!!!!!!!!!!!
7 0
3 years ago
Help!! what are these angle measures
BartSMP [9]

Answer:

m1 = 62.5

m2 = 62.5

m3 = 55°

m4 = 75°

m5 = 50°

Step-by-step explanation:

m1: Sides 1 and 2 are congruent so angle will be the exact same as m2:

180° - 55° = 125 | 125 / 2 = <u>62.5°</u>

m2: same as m1; <u>62.5°</u>

m3: equivalent to <u>55°</u> due to its location

m4: angle of a line is 180° so 180° - 105° = <u>75°</u>

m5: angles of triangle add to 180° so 180° - (75° + 55°) = <u>50°</u>

6 0
2 years ago
Find the measure of c in the figure below using the side lengths given
liubo4ka [24]

Answer:

Step-by-step explanation:

take angle C as reference angle

using tan rule

tan C=oppposite/adjacent

tan C=6/12

tan C=0.5

C=tan^{-1}0.5

C=26.6 degree

5 0
2 years ago
Find the area of the shaded sector of the circle. Use pi=3.14
Neporo4naja [7]

Answer:

If radius of circle = 1, the shaded sector area is calculated by:

A = pi x radius^2 x (136 x 2)/360 = 3.14 x 1^2 x 272/360 =2.37

Hope this helps!

:)

4 0
3 years ago
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