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1 year ago

Which expression is equivalent to -7- (-2.5)?

1 answer:

7 0

Answer: none
-7-(-2.5) in the calculator is -4.5
Which would mean none were equivalent, but if i do it by hand then the answer would be -17.5; again none would be equivalent.
But the closest one is -2.5-7, because it equals 4.5 rather than -4.5

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WILL GIVE BRAINLIEST!!

VMariaS [17]

Answer:

$A(-1,4)\to A''(-1,-1)$

$B(0,2)\to B''(1,0)$

$C(1,2)\to C''(1,1)$

$D(-2,4)\to D''(-1,2)$

Step-by-step explanation:

The given trapezoid has vertices at A(−1,4), B(0,2), C(1,2) and D(2,4).

The transformation rule for 90° counterclockwise rotation is

$(x,y)\to(-y,x)$

This implies that:

$A(-1,4)\to A'(-4,-1)$

$B(0,2)\to B'(-2,0)$

$C(1,2)\to C'(-2,1)$

$D(2,4)\to D'(-4,2)$

This is followed by a translation 3 units to the right.

This also has the rule: $(x,y)\to (x+3,y)$

$A'(-4,-1)\to A''(-1,-1)$

$B'(-2,0)\to B''(1,0)$

$C'(-2,1)\to C''(1,1)$

$D'(-4,2)\to D''(-1,2)$

Therefore:

$A(-1,4)\to A''(-1,-1)$

$B(0,2)\to B''(1,0)$

$C(1,2)\to C''(1,1)$

$D(-2,4)\to D''(-1,2)$

3 0

2 years ago

The pencil is 10 cm long and the cup is 8 cm tall. Find the diameter of the base of the cup?

vlada-n [284]

80 because when u do 10 times 8 it’s 80

3 0

1 year ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%201%7D%7B2x%20-%201%7D%20%20-%20%20%5Cfrac%7Bx%20-%201%7D%7B2x%20%2B%201%

lubasha [3.4K]

x=0

because you must

determine the undefined range

write all numerators above the common denomonator

multiply the parenthesis

collect the alike terms

remove parenthesis

eliminate the opposites collect the like terms

set the numerator equal to 0

divide both sides by 6

check if thesolution is the defined range

if so then you would find your answer X=0

8 0

2 years ago

Lonna had 30 minutes to do a three-problem quiz. She spent 11 minutes on question A and 4

STatiana [176]

Answer:

She had 15 minutes left.

Step-by-step explanation:

30 - 11 = 19

19 - 4 = <em>15</em>

8 0

2 years ago

Read 2 more answers

The circumference of a circle is10π feet what is the radius

sweet-ann [11.9K]

Answer:

r = 5 ft

Step-by-step explanation:

The circumference of a circle is given by

C = 2*pi*r

We are given the circumference

10 *pi = 2 * pi *r

Divide each side by 2 *pi

10 pi/ 2 pi = 2*pi*r/2pi

5 =r

8 0

2 years ago