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Salsk061 [2.6K]
3 years ago
7

Look at the attached questions please :)

Mathematics
1 answer:
elixir [45]3 years ago
7 0

9 + (-5) = 4

-8 - 4 = -12

8 - (-4) = 12

-9 + 5 = -4

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X2 +10x + 21<br> I need to factor the
Ber [7]

Answer:

(x + 7)(x + 3).

Step-by-step explanation:

x^2 +10x + 21

21 = 7 * 3 and 10 = 7 +3

so the factors are

(x + 7)(x + 3).

4 0
3 years ago
3x+y=1/3<br> 2x-3y=8/3<br><br> Solve the system of linear equation using any method.
krek1111 [17]
3x + 1y = ¹/₃   ⇒ 9x + 3y = 1
2x -  3y = 2²/₃ ⇒ 2x -  3y = 2²/₃
                                 11x = 3²/₃
                                  11     11
                                     x = ¹/₃
                             3x + y = ¹/₃
                         3(¹/₃) + y = ¹/₃
                               1 + y = ¹/₃
                             - 1        - 1
                                     y = ⁻²/₃
                              (x, y) = (¹/₃, ⁻²/₃)
4 0
3 years ago
Please Help!! <br> How do you find rate of change using a graph?
BigorU [14]
Its the slope...rise over run. how many going down/up and how many going across

hope this helps

5 0
3 years ago
At Silver Gym, membership is $35 per month, and personal training sessions are $30 each. At Fit Factor,
Vanyuwa [196]

Answer:

5 sessions each

Step-by-step explanation:

Let the personal training sessions be x.

<u>Then at Silver Gym Sarah would spend:</u>

  • 35 + 30x

<u>And at Fit Factor she would spend:</u>

  • 85 + 20x

<u>Since total costs are same, the amounts will be equal:</u>

  • 35+30x = 85 + 20x
  • 30x - 20x = 85 - 35
  • 10 x = 50
  • x= 50/10
  • x= 5

So Sarah would buy 5 training sessions for each of the gyms.

And she would spend $185 at each.

3 0
3 years ago
Can someone help please
Juli2301 [7.4K]

The measure of angle RQS is 50°.

Solution:

Given data:

m(ar QTS) = 260°

<u>Tangent-chord theorem:</u>

<em>If a tangent and chord intersect at a point, then the measure of each angle formed is half of the measure of its intercepted arc.</em>

$ m \angle PQS  = \frac{1}{2}\times m(ar \ QTS)

              $  = \frac{1}{2}\times260^\circ

              =130^\circ

m∠PQS = 130°

<em>Sum of the adjacent angles in a straight line is 180°.</em>

m∠PQS + m∠RQS = 180°

130° + m∠RQS = 180°

Subtract 130° from both sides.

130° + m∠RQS - 130° = 180° - 130°

m∠RQS = 50°

The measure of angle RQS is 50°.

4 0
3 years ago
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