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2 years ago

4) EASY POINTS WILL GIVE BRAINLIST TO BEST ANSWER

Mathematics

2 answers:

Nikitich [7]2 years ago

7 0

Answer:

-38/5

Step-by-step explanation:

cause

Allisa [31]2 years ago

6 0

Answer:

5x+70 $\geq$ 32 and x $\geq$ -38/5

Step-by-step explanation:

5x+70 $\geq$ 32

So x $\geq$ -38/5

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How to do this question plz answer me step by step plzz

SVEN [57.7K]

Answer:

The four angles are;

30 degrees, 85 degrees, 95 degrees , and 150 degrees

Step-by-step explanation:

Call the four angles of this quadrilateral A, B, C, and X (being X the smallest angle)

Then angle A is 55 degrees larger than X , therefore we can write it as X+55

Angle B is 65 degrees larger than X , therefore we can write it as X+65

Angle C is 120 degrees larger than X , therefore we can write it as X+120

Then we know that the addition of all four angles of a quadrilateral must give 360 degrees , so we have:

X + X + 55 +X + 65 + X + 120 = 360

that is:

4 X + 240 = 360

4 X = 360 -240

4 X = 120

X = 120/4

X = 30 degrees

and the other angles are:

30 + 55 = 85 degrees

30 + 65 = 95 degrees

30 + 120 = 150 degrees

6 0

3 years ago

Plz help plz thanks so much this is for my sister plz help

Musya8 [376]

6 + 21 = 27 (Add six ones)
60 + 21 = 81 (Add six tens)

I hope this helps:)
I'm sorry if it doesn't:(

8 0

3 years ago

Read 2 more answers

Question is in the picture below.

USPshnik [31]

Answer:

0.2

Step-by-step explanation:

30/150 = 1/5 = 0.2

set as brainliest

6 0

2 years ago

Read 2 more answers

Match the equations representing parabolas with their directrixes. y + 8 = 3(x + 2)2 y − 14 = -(x − 3)2 y + 7.5 = 2(x + 2.5)2 y

Shkiper50 [21]

Answer:

Part 1) $y+8=3(x+2)^{2}$ -----> $y=-8.08$

Part 2) $y-14=-(x-3)^{2}$ ----> $y=14.25$

Part 3) $y+7.5=2(x+2.5)^{2}$ ----> $y=-7.625$

Part 4) $y-17=-(x-3)^{2}$ -----> $y=17.25$

Part 5) $y+7=(x-4)^{2}$ ----> $y=-7.25$

Part 6) $y-6=-(x-1)^{2}$ ----> $y=6.25$

Step-by-step explanation:

we know that

The equation of a vertical parabola in vertex form is equal to

$y-k=\frac{1}{4p}(x-h)^{2}$

where

(h,k) is the vertex

The directrix is

$y=k-p$

case 1) we have

$y+8=3(x+2)^{2}$

the vertex is the point (-2,-8)

$\frac{1}{4p}=3$

$p=\frac{1}{12}$

The directrix is equal to

$y=-8-\frac{1}{12}=-8.08$

case 2) we have

$y-14=-(x-3)^{2}$

the vertex is the point (3,14)

$\frac{1}{4p}=-1$

$p=-\frac{1}{4}$

The directrix is equal to

$y=14+\frac{1}{4}=14.25$

case 3) we have

$y+7.5=2(x+2.5)^{2}$

the vertex is the point (-2.5,-7.5)

$\frac{1}{4p}=2$

$p=\frac{1}{8}$

The directrix is equal to

$y=-7.5-\frac{1}{8}=-7.625$

case 4) we have

$y-17=-(x-3)^{2}$

the vertex is the point (3,17)

$\frac{1}{4p}=-1$

$p=-\frac{1}{4}$

The directrix is equal to

$y=17+\frac{1}{4}=17.25$

case 5) we have

$y+7=(x-4)^{2}$

the vertex is the point (4,-7)

$\frac{1}{4p}=1$

$p=\frac{1}{4}$

The directrix is equal to

$y=-7-\frac{1}{4}=-7.25$

case 6) we have

$y-6=-(x-1)^{2}$

the vertex is the point (1,6)

$\frac{1}{4p}=-1$

$p=-\frac{1}{4}$

The directrix is equal to

$y=6+\frac{1}{4}=6.25$

5 0

3 years ago

......................................................................................................

antiseptic1488 [7]

The answer to your question is .........

5 0

3 years ago