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tankabanditka [31]
2 years ago
10

Solve the following quadratic equation by factoring or Quadratic Formula.

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
6 0

Answer:

A.

Step-by-step explanation:

x2 - 3x - 10. = 0

x2 + 2x - 5x - 10 = 0

(x2 + 2x) (-5x - 10) = 0

x (x + 2) - 5 (x + 2) = 0

(x - 5) (x + 2) = 0

x - 5 = 0 x + 2 = 0

x = 5 or x = - 2.

stepladder [879]2 years ago
6 0
Answer is A I’m pretty sure
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A salesman earns $250 per week PLUS a 10% commission on all sales over $5000. In one week, his sales totaled $14,000. What were
Masja [62]

Answer:

B. 1150

Step-by-step explanation:

14000-5000=9000 sales over 5000

9000 x .10=900 commission

250 (salary)+ 900 (commission)=1150 total

6 0
2 years ago
A certain bag of potting soil is 1/4 peat moss, and the rest is dirt, what part is dirt
AVprozaik [17]
If you do the math you'll get 3/4 of the bag is dirt.
4 0
3 years ago
Read 2 more answers
What is the length of the hypotenuse of the triangle?<br> 7 ft<br> 4 ft
stepladder [879]

Answer:

√65 ft = 8.1 ft

Step-by-step explanation:

We solve using Pythagoras Theorem

c² = a² + b²

c = √a² + b²

Where c = Length of the Hypotenuse

a = 4ft , b = 7ft

Hence

c = √4² + 7²

c = √16 + 49

c = √(65)

c = 8.0622577483 ft

Approximately = 8.1 ft

Therefore, the length of the hypotenuse is √65 ft = 8.1 ft

5 0
2 years ago
-0.55 inches, 0.75 inches, 3.25 inches, -0.75 inches, and 0.7 inches.
aleksandrvk [35]

Answer:

3.25 inches, 0.75 inches, 0.7 inches, -0.55 inches, -0.75 inches

hope it help <3

4 0
3 years ago
A corporation has 11 manufacturing plants. Of these, seven are domestic and four are outside the United States. Each year a perf
nikdorinn [45]

Answer:

The probability that a performance evaluation will include at least one plant outside the United States is 0.836.

Step-by-step explanation:

Total plants = 11

Domestic plants = 7

Outside the US plants = 4

Suppose X is the number of plants outside the US which are selected for the performance evaluation. We need to compute the probability that at least 1 out of the 4 plants selected are outside the United States i.e. P(X≥1). To compute this, we will use the binomial distribution formula:

P(X=x) = ⁿCₓ pˣ qⁿ⁻ˣ

where n = total no. of trials

           x = no. of successful trials

           p = probability of success

           q = probability of failure

Here we have n=4, p=4/11 and q=7/11

P(X≥1) = 1 - P(X<1)

          = 1 - P(X=0)

          = 1 - ⁴C₀ * (4/11)⁰ * (7/11)⁴⁻⁰

          = 1 - 0.16399

P(X≥1) = 0.836

The probability that a performance evaluation will include at least one plant outside the United States is 0.836.

7 0
2 years ago
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