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3 years ago

CAN SOMEONE PLEASE JUST ANSWER THIS ASAP FOR BRAINLIEST!!!

Mathematics

1 answer:

Minchanka [31]3 years ago

4 0

Answer:

The answer is that Pat is right.

Step-by-step explanation:

x^2 + 7x +18

(x + 9)(x - 2)

Grace is wrong because of this. Both factors must have a + sign in order for her to be right.

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Please help me with this ratio.

Charra [1.4K]

Answer:

$\frac{inches}{minute}$

Change the feet to minutes by multiplying by 12, and change the hour to minutes.

Speedy: $\frac{240}{60}$

Slowpoke: $\frac{80}{30}$

Cleo: $\frac{96}{10}$

Speedy is the fastest.

$\frac{feet}{hour}$

Speedy: $\frac{20}{1}$
Slowpoke: $\frac{\frac{6.666666667}{.5}}{30}$
Cleo: $\frac{8}{\frac{1}{6}}$

Change minutes to feet by dividing and change the minutes to hours by multiplying.

Hope this helps and have a great day!!!

$Sofia$

8 0

4 years ago

One coin in a collection of 65 has two heads. The rest are fair. If a coin, chosen at random from the lot and then tossed, turns

geniusboy [140]

Answer:

P=1/65.

Step-by-step explanation:

We knaow that one coin in a collection of 65 has two heads. If a coin, chosen at random from the lot and then tossed, turns up heads 6 times in a row. We calculate the probability that it is the two-headed coin.

We calculate the number of possible combinations:

$C_1^{65}=\frac{65!}{1!(65-1)!}=65$

Number of favorable combinations is 1.

Therefore, the probability is

P=1/65.

6 0

3 years ago

Use the formula to evaluate the series 3-9+27-81+...-a8

Andrej [43]

In the given series, we see that the first term is 3 and the common ratio between the succeeding terms is -3. To solve for the sum of the first 8 terms, we use the equation,

Sum = (a1)(1 – r^n) / (1 – r)

Substituting the known terms,

Sum = (3)(1 – (-3)^8)/(1 - -3) = -4920

Thus, the answer is -4920.

6 0

3 years ago

What is the perimeter of the isosceles triangle? 13.5 cm 13 cm 14 cm 4 cm

Svet_ta [14]

Answer:

13 cm

Step-by-step explanation:

P=4+4.5+4.5=13 cm

4 0

3 years ago

2x-8+3x(greater than or equal to)5x-4

olchik [2.2K]

2x-8=3x is greater than 5x-4

4 0

3 years ago