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3 years ago

What is the measure of angle Z?

Mathematics

1 answer:

Tanya [424]3 years ago

5 0

Answer:

C. 61

Step-by-step explanation:

add angles s and r together to find the sum of the line, 78+49= 119

then, subtract 180 with 119 which equals 61. you subtract 180 because thats the sum of the 3 degrees of a tirangle

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The bar graph shows the number of students who earned each letter grade on a written report.Which statement about the graph is t

Molodets [167]

It's probably A (I can't tell you for certain, because I can't see the image, but the other options seem illogical).

3 0

3 years ago

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The width of a rectangle is the length minus 7 units. The area of the

AleksandrR [38]

Answer:

8 units

Step-by-step explanation:

here's your solution

=> let the length of rectangle be X

=> then width = x - 7

=> area = 8units

=>> area = length*width

=> area = x (x-7) = 8

=> x^2 - 7 = 8

=> now, x^2 - 7x - 8 = 0

=> factories the above equation by middle term split

=> x^2 - 7x - 8

=> x^2 - 8x + x - 8

=> take the common

=> x(x - 8) + 1(x - 8)

=> (x + 1) (x - 8)

neglect (x + 1) because this will in negative for X

=> x - 8 = 0

=> x = 8

=>so, x = 8

=>length = 8 units

3 0

3 years ago

PLS HELP I GIVE YOU 25 POINTS the elevation of the first rest stop is -10 feet the elevation of the second rest stop is -15 feet

DochEvi [55]

Answer:

jack was incorrect

Step-by-step explanation:

this is because -15 is more negatives then -10. (this is one way to look at it) the correct answer is: -10 > -15

4 0

4 years ago

A solution has a h3o of 1x10^-3 M. What is the OH of the solution.

UNO [17]

The h30 of 1x10 Ig is 1x34

4 0

4 years ago

The roots of x2 − ( ) + 34 are 5 ± 3i.

Angelina_Jolie [31]

Use quadratic formula
if you had ax^2+bx+c=0, then
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$
a=1
b=?
c=34
subsitute
$\frac{-b+/- \sqrt{b^{2}-4(1)(34)} }{2(1)}$ =5+/-3i
$\frac{-b+/- \sqrt{b^{2}-136} }{2}$ =5+/-3i
make 5+/-3 into fraction over 2,(10+/-6i)/2
$\frac{-b+/- \sqrt{b^{2}-136} }{2}$ =(10+/-6i)/2
multiply both sides by 2
$-b+/- \sqrt{b^{2}-136}$ =10+/-6i
we conclude that -b=10
b=-10

ok so equaton is
x^2-10x+34

5 0

4 years ago

Read 2 more answers