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Naddik [55]
3 years ago
12

A student is asked to solve the equation below and to justify her/his steps. Identify what, if anything, is incorrect in her/his

math or justification.
z – 3 = 11 NEED SOME FAST HELP I HAVE TEN MINS TILL THE TEST IS OVER PLEASE HELP
Mathematics
2 answers:
larisa86 [58]3 years ago
6 0
Add +3 to each side and it should then be z=14
tino4ka555 [31]3 years ago
6 0

the answer is D i just took the test

A.

The student mislabeled the work in the second step as "Addition property of equality."

B.

The student improperly applied the addition property of equality in the second step.

C.

The student computed the sums improperly to arrive at an erroneous answer in step 3.

(D.

There is no error. The student's justification is correct.)

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What is absolute value?
pochemuha

Answer:

Absolute value means the distance between a number and 0.

Examples:

The absolute value of -7 is 7.

The absolute value of 5 is 5.

Key Concepts:

The absolute value sign is |x|, where x is any real number.

The absolute value removes any negative sign in front of a number.

8 0
3 years ago
Read 2 more answers
Can someone help me with these both
Anna [14]
Hello,
so all you have to do is match the abbreviations to the triangles. The abbreviations stand for what is the SAME in both triangles, denoted by similar markings on equal sides and angles.

Abbreviations:
SSS = Side-Side-Side
SAS = Side-Angle-Side
ASA = Angle-Side-Angle
AAS = Angle-Angle-Side
HL = Hypotenuse-Leg

* Note - the angle side angle must go around the triangle in that order. ASA has the side BETWEEN the congruent angles.. SSA does NOT work.

(9.) ASA
(10.) AAS
(11.) SSS
(12.) No way to tell if congruent. (only 3 angles no side)
(13.) ASA
(14.) SAS
(15.) HL

7 0
3 years ago
What is the surface area of a cylinder with a base radius of 3 ft and a height of 5ft
Solnce55 [7]
SA of a cylinder: 2\pir² + 2\pirh
r = radius of base
h = height of cylinder

Plug in 3 for r and 5 for h in the formula.
2\pi3² + 2\pi(3)(5)
Use a calculator to solve.

2\pi3² + 2\pi(3)(5) = 150.8 ft²
6 0
2 years ago
Quizziz help 9th grade please thx
astraxan [27]
I. H o p e It. R I g h t.


(x - 9) (x-3)





3 0
2 years ago
A dermatology patient is treated with ultraviolet light having a wavelength of 375 nm. What is the wavelength expressed in centi
sergeinik [125]
1 nanometer = 1 * 10^9 meters

so 1 nanometer =  1 * 10^7 centimeters

375 nanometers =  3,75 *  10^5 centimeters
4 0
3 years ago
Read 2 more answers
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