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3241004551 [841]
3 years ago
5

The solution set of the inequality 1 + 2y ​

Mathematics
1 answer:
Alla [95]3 years ago
6 0

Answer:

is it four I am not quite sure

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Which postulate or theorem could be used to prove triangleLMQ is congruent to triangleLNP
Cerrena [4.2K]
I believe the correct answer is B. :)
7 0
4 years ago
Read 2 more answers
Check my answers?
hichkok12 [17]

Answer:

3. D) (-8, -17)

2. D) (-15, -16)

1. B) (3, -4)

Step-by-step explanation:

3.

{y = 3x + 7

{y = x - 9

x - 9 = 3x + 7

-3x - 3x

____________

−2x - 9 = 7

+ 9 + 9

__________

−2x = 16

____ __

−2 −2

-8 = x[Plug this back into both equations above to get the y-coordinate of −17]; -17 = y

__________________________________________________________

2.

{−4x + 3y = 12

{−2x + 3y = −18

−½[−4x + 3y = 12]

{2x - 1½y = −6 >> New Equation

{−2x + 3y = −18

_______________

1½y = −24

____ ____

1½ 1½

-16 = y[Plug this back into both equations above to get the x-coordinate of −15]; -15 = x

__________________________________________________________

1.

{−10x - 3y = −18

{−7x - 8y = 11

−⅜[−7x - 8y = 11]

{−10x - 3y = −18

{2⅝x + 3y = −4⅛ >> New Equation

_________________

−7⅜x = −22⅛

______ _____

−7⅜ −7⅜

3 = x[Plug this back into both equations above to get the y-coordinate of −4]; -4 = y

I am joyous to assist you anytime.

5 0
4 years ago
Plsss help and thank u
ale4655 [162]

Answer:

11/16

Step-by-step explanation:

There are 9 red crayons, 2 blue crayons, and 5 yellow crayons. We can represent this as a ratio of 9:2:5. Now we have to combine the red crayons and blue crayons so it's 11 red and blue crayons: 5 yellow crayons OR 11:5. Then we add those two values to find out the number of crayons there are, and there are 16. So out of 16 times, you will pick up a red or blue crayon 11 times. So this fraction is 11/16 which is already its simplest form.

Let me know if you have any questions

6 0
3 years ago
Read 2 more answers
Simplify: 1(-3.86 + 6.82)| + |(4.02 - 12.45)||
Yuki888 [10]

Answer:

11.39

Step-by-step explanation:

-3.86+6.82=2.96

abs(2.96)=2.96

----------------------

4.02-12.45=-8.43

abs(-8.43)=8.43

-----------------------

1(2.96)+8.43=2.96+8.43=11.39

6 0
3 years ago
Three solid shapes A,B and C The surface area of shape A is 9cm² The surface area of shape B is 16cm² The ratio of the volume of
dmitriy555 [2]

Answer:

9:20

Step-by-step explanation:

Given:

Surface area of shape A = 9 cm²

Surface Area of shape B = 16 cm²

Ratio of volume of shape A to B = 27:125

Required:

Find the ratio of the height of shape A to the height of shape C.

Ratio of surface area (A:B)² = ratio of linear measures (A:B)

Thus,

(A:B)² = (A:B)

(A/B)² = (A/B)

(\frac{A}{B})^2= (\frac{9}{16})

Take the square root of both sides:

(\sqrt{\frac{A}{B}})^2 = (\sqrt{\frac{9}{16}})

\frac{A}{B} = \frac{3}{4}

Ratio of volume of shape B to C = 27:125

Thus,

(B:C)³ = 27:125

(\frac{B}{C})^3= (\frac{27}{125})

Take the cube root of both sides:

(3\sqrt{\frac{B}{C}})^3 = (3\sqrt{\frac{27}{125}})

\frac{B}{C} = \frac{3}{5}

Therefore, ratio of lengths A:B:C =

3:4:C

A:3:5

To make them equivalent, we have:

9:12:C

A:4:20

Therefore, the ratio of the height of shape A to the height of shape C =

9:20

6 0
4 years ago
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