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3 years ago

8

Longs coffee shop sells a refill mug for $8.95 Each refill cost $1.50 Lastmoth jalissa spent 26.95 on a mug and refills. How man

y refills did she buy?

1 answer:

statuscvo [17]3 years ago

6 0

Answer:

flip yea

Step-by-step explanation:

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What are points that occur in the same plane but not necessarily the same line

juin [17]

Non co-linear points

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4 years ago

You have a combination lock. Again, to open it you turn the dial to the right and stop at a first number; then you turn it to th

tamaranim1 [39]

Answer: 7

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4 years ago

How many solutions does the equation x^2=100 have?

Nataliya [291]

2 and these are x = -10 and x = 10

$x^2 = 100 \\ \sqrt{x^2} = \sqrt{100} \\ x = ±10$

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3 years ago

The sum of a rational number and irrational number is ____ rational.

garri49 [273]

Answer:

Never

Step-by-step explanation:

Pi is a an irrational number. Multiply any rational number by pi and you will never get a rational number. The answer is never

7 0

3 years ago

The number T of teams that have participated in a robot-building competition for high-school students over a recent period of ti

Katarina [22]

Solving <u>the quadratic equation</u>, it is found that the number of teams is <u>greater than 1000</u> after 3.1 years.

The <u>number of teams after x years </u>is given by:

$T(x) = 17.155x^2 + 193.68x + 235.81$

Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:

$17.155x^2 + 193.68x + 235.81 = 1000$

$17.155x^2 + 193.68x - 764.19 = 0$

Which has coefficients $a = 17.155, b = 193.68, c = -764.19$ , then:

$\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66$

$x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1$

$x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3$

We want the positive root, so the number of teams is greater than 1000 after 3.1 years.

A similar problem is given at brainly.com/question/10489198

8 0

2 years ago