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3 years ago

Find the nonpermissible replacement for y in this expression. y + 9 y+7

Mathematics

1 answer:

BigorU [14]3 years ago

3 0

Answer:

idk

Step-by-step explanation:

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NEED HELP NOW WILL MARK BRAINLIEST What is the measure of the central angle of a circle with radius 60 centimeters that intercep

Elena-2011 [213]

Answer:

15pi/60 = pi/4 hopefully this helps :)

Step-by-step explanation:

Angle in radians = arc / radius

15pi/60 = pi/4

4 0

3 years ago

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70 POINTS!!!!!!!!!! Given: E, F, Q, D∈k(O),O ∈ ED, m∠DFQ = 10°, measure of arc EF = 28° Find: Angles of △EFQ

Likurg_2 [28]

Answer:

The measures of angles of triangle EFQ are

1) $m\angle EFQ=100\°$

2) $m\angle FEQ=66\°$

3) $m\angle EQF=14\°$

Step-by-step explanation:

step 1

Find the measure of arc QD

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle DFQ=\frac{1}{2}(arc\ QD)$

substitute the given value

$10\°=\frac{1}{2}(arc\ QD)$

$20\°=(arc\ QD)$

$arc\ QD=20\°$

step 2

Find the measure of arc FQ

we know that

$arc\ QD+arc\ FQ+arc\ EF=180\°$ ---> because ED is a diameter (the diameter divide the circle into two equal parts)

substitute the given values

$20\°+arc\ FQ+28\°=180\°$

$arc\ FQ=180\°-48\°=132\°$

step 3

Find the measure of angle EFQ

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle EFQ=\frac{1}{2}(arc\ QD+arc\ ED)$

substitute the given value

$m\angle EFQ=\frac{1}{2}(20\°+180\°)=100\°$

step 4

Find the measure of angle FEQ

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle FEQ=\frac{1}{2}(arc\ FQ)$

substitute the given value

$m\angle FEQ=\frac{1}{2}(132\°)=66\°$

step 5

Find the measure of angle EQF

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle EQF=\frac{1}{2}(arc\ EF)$

substitute the given value

$m\angle EQF=\frac{1}{2}(28\°)=14\°$

5 0

4 years ago

25% of my number is 24 what number is sam thinking of

scoundrel [369]

Answer:

Step-by-step explanation:

25% is 1/4 of 100%

thus, if you multiply 24x4 you get 100%

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3 years ago

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Help me with question8 plz aSAP ASAP

olga_2 [115]

A) the slope of distance vs time is speed:

i) from 09:00 to 09:11 it is increasing velocity positively and steadily by going away from the origin.

ii) the car speeds up by going away from the origin with constant velocity.

iii) the car does not have any movement stationary in 9m.

iv) it car is dropping speed, going toward the origin.

b) distance= 9m+6m=15m

c) i) slope= velocity= (9-0)/(24)= 3/8 km/h

ii) velocity = (6-4)/(19)=2/19 km/h

6 0

4 years ago

Complete

denis23 [38]

The correct answer is 4

3 0

1 year ago