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lyudmila [28]
3 years ago
5

Please help with Parallel Lines and Transversals

Mathematics
2 answers:
kiruha [24]3 years ago
5 0
Angle 7 is 40 degrees because if the whole thing is 180 and 180 -140 is 40. and the angles on the bottom line mirror the angles on top, so if the smaller angle on top is 40 degrees, so is the one on the bottom
EleoNora [17]3 years ago
4 0
Angle 7 is equal to 3. the line cutting through has a degree of 180. minus 140 from 180 to get the desired angle which is 40 degrees
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Given that -15 is a root of x² +mx +45 = 0 find the constant m​
o-na [289]

Answer:

m = 18

Step-by-step explanation:

Given :

=> -15 is a root of the polynomial

=>  It is a zero to the solution.

Process :

Substitute -15 in place of x.

=> (-15)² + (-15)m + 45 = 0

=> 225 + 45 - 15m = 0

=> 15m = 270

=> m = 270/15

=> m = 18

5 0
2 years ago
Quadrilateral LMNO is similar to quadrilateral PQRS. Find the measure of side QR.
dalvyx [7]

Answer:

The measure of the side QR is 8.8.

Step-by-step explanation:

Since LMNO \sim PQRS, then SP \propto OL, RS \propto ON, RQ \propto MN and QP \propto LM. From figure we have the following relationship:

k = \frac{OL}{SP} = \frac{ON}{RS} = \frac{MN}{QR} = \frac{ML}{QP} (1)

Where k is the proportionality ratio.

If we know that SP = 13, OL = 55, MN = 37, then the measure of side QR is:

k = \frac{OL}{SP} (1b)

k = \frac{55}{13}

k = \frac{MN}{QR}

QR = \frac{MN}{k} (1c)

QR = \frac{37}{\frac{55}{13} }

QR = 8.745

The measure of the side QR is 8.8.

4 0
3 years ago
I need help pppppppllssssssssss​
balandron [24]

Answer:

y=x-1

Step-by-step explanation:

8 0
3 years ago
I need help right now. report cards are coming in soon and i need to get my grades up​
saul85 [17]

Answer:

x = 10

Step-by-step explanation:

3x - 5 = 2x + 5

3x - 5 + 5 = 2x + 5 + 5

3x = 2x + 10

3x - 2x = 2x - 2x + 10

1x = 10

x = 10

4 0
3 years ago
Read 2 more answers
HELP ASAP PLSS!!!
Bumek [7]

Answer:

50 + 25x = 1600

Step-by-step explanation:

3 0
3 years ago
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