What’s 9+10????????????????? ?

Rebecca earned $115 in simple interest for 8 months at an annual interest rate of 3%. How much money did she start with in her a

nata0808 [166]

Answer:

$5750

Step-by-step explanation:

For simple interest,

I = prt

115 = p × 0.03 × 8/12

p = 5750

8 0

1 year ago

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For a company picnic, Todd fills 30 paper cups with ketchup and Yuki fills 27 paper cups with ketchup. Each paper cup holds 1 ou

vampirchik [111]

Step-by-step explanation:

Todd fills 30 paper cups with ketchup and Yuki fills 27 paper cups with ketchup.

Each paper cup holds 1 ounce

Todd = 30 * 1 = 30 ounces

Yuki = 27 * 1 = 27 ounces

Total ounces = 30 + 27

Later, Todd and Yuki learn that two other company employees completed exactly the same task.

Total ounces = 2 (30 + 27)

6 0

2 years ago

Help me i need help ok try to explain and ok ok ok ok ok ok ok ok

Kaylis [27]

Question 9

18, 28, 6, 54

Question 10

Correct Number: 5

Incorrect Number: 6

7 0

2 years ago

Please help me! Due Thursday!

ikadub [295]

All the points are describing a rational number! (C)

6 0

3 years ago

7. Use the quadratic formula to find the solution(s). x² + 2x - 8 = 0

morpeh [17]

Hey there!

Use the quadratic formula to find the solution(s). x² + 2x - 8 = 0

Answer :

x = -4 or x = 2 ✅

Explanation :

Quadratic formula : ax² + bx + c = 0 where a ≠ 0

The number of real-number solutions (roots) is determined by the discriminant (b² - 4ac) :

If b² - 4ac > 0 , There are 2 real-number solutions

If b² - 4ac = 0 , There is 1 real-number solution.

If b² - 4ac < 0 , There is no real-number solution.

The roots of the equation are determined by the following calculation:

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a}$

Here, we have :

a = 1
b = 2
c = -8

1) Calculate the discriminant :

b² - 4ac ⇔ 2² - 4(1)(-8) ⇔ 4 - (-32) ⇔ 36

b² - 4ac = 36 > 0 ; The equation admits two real-number solutions

2) Calculate the roots of the equation:

▪️ (1)

$x_1 = \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a} \\ \\ x_1 = \frac{ - 2 - \sqrt{36} }{2(1) } \\ \\ x_1 = \frac{ - 2 - 6}{2} \\ \\ x_1 = \frac{ - 8}{2} \\ \\ \blue{\boxed{\red{x_1 = -4}}}$

▪️ (2)

$x_2 = \frac{ - b + \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ x_2 = \frac{ - 2 + \sqrt{36} }{2(1)} \\ \\ x_2 = \frac{ - 2 + 6}{2} \\ \\ x_2 = \frac{4}{2} \\ \\ \red{\boxed{\blue{x_2 = 2}}}$

>> Therefore, your answers are x = -4 or x = 2.

Learn more about quadratic equations:

brainly.com/question/27638369

6 0

2 years ago

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