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3 years ago

Which is the slope of the line that passes through the points (3,17) and (7,25)?

Mathematics

1 answer:

Nookie1986 [14]3 years ago

6 0

Answer:

The slope is 2.

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(25-17)/(7-3)

m=8/4

m=2

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Help me out please, im only typing this much because its making me...

Genrish500 [490]

Answer:

B. $x^{2} +2x-8$

Step-by-step explanation:

Here the best method to solve is by substituting the end values of the set in each option , otherwise it will a time consuming problem.

Now substitute x=-4 in all the options

A. $x^{2} -2x-8$

16+8-8=16>0

so out of option A and C option C is correct.

B. $x^{2} +2x-8$

16-8-8=0 which means for the values of x>-4 $x^{2} +2x-8$ is less than 0

Now substitute x=2 in all the options

A. $x^{2} -2x-8$

4-4-8=-8<0 . so option A and C both are incorrect.

B. $x^{2} +2x-8$

4+4-8=0 which means for the values of x<2 $x^{2} +2x-8$ is less than 0

Therefore the correct option is B

6 0

3 years ago

Find the solution of this system of equations.

Elenna [48]

-4x + y = -25 y = 4x - 25

-6x - 6y = 0 

-6x - 6(4x - 25) = 0
-6x - 24x + 150 = 0
-30x + 150 = 0
-30x = -150
x = 5

y = 4(5) - 25
y = 20 - 25
y = -5

(5, -5)

8 0

3 years ago

100 POINTS 100 POINTS 100 POINTS 100 POINTS I WILL MARK BRAINLIEST

ad-work [718]

Answer:

(a) 1, 2, 7, 14 (b) 1, 3, 9, 27 (c) 1, 2, 3, 6 (d) 1, 3, 5, 15 ... 4.4 Sine, Cosine and Tangent. 1. (a) hyp : BC ; adj : AC ; opp : AB. (b) hyp : DF ; adj : DE ; opp : EF. (c).

SO THE ANSWER IS 8

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In the circle below, AD is a diameter and AB is tangent at A. suppose mADC=228. Find the measures of mCAB and mCAD. Type your nu

Tju [1.3M]

Answer:

m∠CAB = 66°

m∠CAD = 24°

Step-by-step explanation:

m∠CAB

The given parameters are;

The measure of arc m $\widehat{ADC}$ = 228°

The diameter of the given circle = $\overline{AD}$

The tangent to the circle = $\underset{AB}{\leftrightarrow}$

The measure of m∠CAB and m∠CAD = Required

By the tangent and chord circle theorem, we have;

m∠CAB = (1/2) × m $\widehat{AC}$

However, we have;

m $\widehat{AC}$ + m $\widehat{ADC}$ = 360° the sum of angles at the center of a circle is 360°

∴ m $\widehat{AC}$ = 360° - m $\widehat{ADC}$

Which gives;

m $\widehat{AC}$ = 360° - 228° = 132°

m $\widehat{AC}$ = 132°

Therefore;

m∠CAB = (1/2) × 132° = 66°

m∠CAB = 66°

m∠CAD

Given that $\overline{AD}$ is the diameter of the given circle, we have

The tangent, $\underset{AB}{\leftrightarrow}$ , is perpendicular to the radius of the circle, and therefore $\underset{AB}{\leftrightarrow}$ is also perpendicular to the diameter of the circle

∴ m∠DAB = 90° which is the measure of the angle formed by two perpendicular lines

By angle addition property, we have;

m∠DAB = m∠CAB + m∠CAD

∴ m∠CAD = m∠DAB - m∠CAB

By substitution, we have;

m∠CAD = 90° - 66° = 24°

m∠CAD = 24°

7 0

3 years ago

Find the unknown factor 7×(2×_)=56

Yuri [45]

The answer is 4 because 2 * 4 = 8 * 7 = 56

7 0

3 years ago

Read 2 more answers