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2 years ago

Please help I was supposed to do this yesterday If x=-4 and y= 9/2

Mathematics

2 answers:

tekilochka [14]2 years ago

7 0

Answer:

1/6( $3x^{2}$ +4y)

Step-by-step explanation:

masha68 [24]2 years ago

3 0

The answer is 11 if you plug in -4 for x and 9/2 for y

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(Bro I'm so confused) In the diagram, PQRS is a square. Points T, U, V, and W are on sides PQ, QR, RS, and ST, respectively, for

Gnesinka [82]

The total area of square TUVW is 160 meters.

<h3>Find out the sides of PQRS:</h3>

Total area: side x side

256 m = side x side

side = √ 256

side= 16 m

This means PQ, QR, RS, SP = 16 m

<h3>Find out the area of one triangle:</h3>

Area: 1/2 x base x height

Let's find out the area of the triangle UVR although all triangles are the same.

Base: 4 meters

Height:

RQ= 16

QU= 4

16-4 = 12

Area: 1/2 x 4 x 12 = 24

<h3>Find the total area of the triangles:</h3>

24 x 4 = 96

Finally, find out the total area of the grey square:

Total area of the grey square = Total area of the white square - area of the triangles

Total area = 256 - 96

Total area= 160

Learn more about squares in: brainly.com/question/13747846

8 0

2 years ago

Simplify >>>>>>> <br><br><br> 2(4x+9)

Black_prince [1.1K]

2(4x+9)

mutiply the bracket by 2

(2)(4x)= 8x

(2)(9)= 18

Answer: 8x+18

8 0

3 years ago

DanielleElmas [232]

Answer:

Add the area of the rectangle with the semicircle.

10x4 + 0.5(3.14)(25)

40+39.25

79.25

So the answer is C. 79.

Let me know if this helps!

4 0

3 years ago

Just a lil some some so please help me

JulsSmile [24]

Answer:

I think its agree. I hope that helped

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The seasonal output of a new experimental strain of pepper plants was carefully weighed. The mean weight per plant is 15.0 pound

DanielleElmas [232]

Answer:

There are 118 plants that weight between 13 and 16 pounds

Step-by-step explanation:

For any normal random variable X with mean μ and standard deviation σ : X ~ Normal(μ, σ)

This can be translated into standard normal units by :

$Z = \frac{(X - \mu)}{\sigma}$

Let X be the weight of the plant

X ~ Normal( 15 , 1.75 )

To find : P( 13 < X < 16 )

$= P(\frac{( 13 - 15 )}{1.75} < Z < \frac{( 16 - 15 )}{1.75})$

= P( -1.142857 < Z < 0.5714286 )

= P( Z < 0.5714286 ) - P( Z < -1.142857 )

= 0.7161454 - 0.1265490

= 0.5895965

So, the probability that any one of the plants weights between 13 and 16 pounds is 0.5895965

Hence, The expected number of plants out of 200 that will weight between 13 and 16 = 0.5895965 × 200

= 117.9193

Therefore, There are 118 plants that weight between 13 and 16 pounds.

4 0

3 years ago