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3 years ago

Based on given information for each of the following, which lines cannot be parallel? f m∠1=123°, m∠8=132°

Mathematics

1 answer:

Rudiy273 years ago

5 0

Answer:

do you have a picture?

Step-by-step explanation:

I can't go off of just that (not enough info)

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The equation x2 − 9 = 0 has real solution(s).

tatiyna

Answer:

The roots are real and unequal (3, -3)

Step-by-step explanation:

x²-9=0

ax²+bx+c=0

Comparing we get,

a= 1

b= 0

c = -9

Determinant: b²-4ac

= 0² - 4(1)(-9)

= 36>0

D > 0

Therefore, the equation has real and unequal roots.

Algebraic identity:

x² - a² = (x-a)(x+a)

Using this identity

x²-9 = (x+3)(x-3)

Roots are 3 and -3 which are real and not equal to each other

Hope this answer helps you ..

6 0

3 years ago

Read 2 more answers

Match the correct y=mx+b equation to the graph: <br><br> pls show work/explanation!

MrMuchimi

Answer:

y=x+1

Step-by-step explanation:

m is the slope, and the slope is 1. b is the y-intercept, which is 1.

7 0

3 years ago

Will a 9/32 inch diameter pin fit into a reamed hole with a diameter of 0.278 inch? (Do not round off your answer and express it

ollegr [7]

Answer:

9/32 inch diameter pin will not fit into a reamed hole with a diameter of 0.278 inch

Step-by-step explanation:

Diameter of reamed hole = 0.278 inch

Radius of reamed hole = $\frac{0.278}{2} =0.139$

Surface area of reamed hole = $\pi r^2$

Surface area of reamed hole = $3.14 \times (0.139)^2$

Surface area of reamed hole = 0.06066794

Diameter of pin = $\frac{9}{32}$

Radius of pin = $\frac{9}{64}$

Surface area of pin = $\pi r^2 = 3.14 \times ( \frac{9}{64})^2=0.0620$

Since the surface area of pin is more than the surface area of hole .

So, a 9/32 inch diameter pin will not fit into a reamed hole with a diameter of 0.278 inch

7 0

3 years ago

What is the length of a base of a right triangle with an area of 15 meters and a height of 3 meters?

Nina [5.8K]

Answer:

Step-by-step explanation:

15 = 1/2 * b * 3

15 * 2 = 3 * b

b = 30/3

b = 10 m

5 0

2 years ago

Sheniah went to McDonald's and bought a soda for one dollar. She also bought a Big Mac. For any price of the Big Mac, what would

Natalka [10]

Answer:

$1+x(price of big mac)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers