3 years ago

I really Need help solving this problem!

Mathematics

1 answer:

Paraphin [41]3 years ago

8 0

Answer:

Hello,

Answer A : 11.2 ≤ X ≤ 29.2

Step-by-step explanation:

$Z=\dfrac{X-20.2}{4.5} \\\\X=4.5*Z+20.2\\\\For\ Z=-2, \ X=4.5*(-2)+20.2=11.2\\For\ Z=2, \ X=4.5*2+20.2=29.2\\$

You might be interested in

I need the answer plzzzz

Vladimir79 [104]

I think the equation that is not true is D. (200m = 2cm)
Hope this helps! :D

3 0

3 years ago

Write an inequality that models the solution for 3x + 4.5 ≤ 5(x - 2)

lara [203]

Answer:

x ≤ 7.25

Step-by-step explanation:

1) $3x + 4.5$ ≤ $5(x - 2)$

Distribute 5 through the parenthesis.

2) $3x + 4.5$ ≤ $5x - 10$

Move the variable to the left side and change it's sign.

3) $3x + 4.5 - 5x$ ≤ $- 10$

Move the constant to the right side and change it's sign.

4) $3x - 5x$ ≤ $- 10- 4.5$

Subtract the like terms.

5) $-2x$ ≤ $-14.5$

Divide both sides of the inequality by -2.

6) $x$ ≤ $7.25$

3 0

3 years ago

If a triangle meets the criteria of c2> a2 + b2, then the triangle is obtuse. False True

OLga [1]

the answer to ur question is going to be false it was right for me so i hope it is for u! good luck

4 0

3 years ago

The angle t is acute and sin t = 6/7 is given use a Pythagorean identity to find cos t

Dennis_Churaev [7]

Answer:

sqrt(1 - 36/49) = +root(13)/7

Step-by-step explanation:

sin^2t + cos^2t is identical to 1 for all t.

(6/7)^2 + cos^2t = 1

1 - 36/49 = cos^2t

hence plus/miuns sqrt(1 - 36/49) = cos(t)

since t is acute, the answer must be positive.

7 0

3 years ago

A bowl of fruit is on the table. It contains 3 apples, 5 oranges, and 2 pears. Ryan and Kenneth come home from school and, at

Airida [17]

2 out of 8 I think hope it helps

4 0

3 years ago