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egoroff_w [7]
3 years ago
12

-5.5x+0.56= -1.64 What does x equal to ?

Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0
-5.5x+0.56= -1.64 -0.56 -0.56 -5.5x= -2.2 /5.5 /5.5 x= -0.4 is the answer
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HELP ME PLEASE! I will give brainliest!!!
Lera25 [3.4K]

Answer:

18 and 15 i think

Step-by-step explanation:

6 0
2 years ago
Question 1: The management of a grocery store has kept a record of bad checks received per day for a period of 200 days. The dat
nydimaria [60]

Answer:

The probability that in a given day the store receives four or less bad checks is 0.70.

The probability that in a given day the store receives more than 3 bad checks is 0.50.

Step-by-step explanation:

The data provided shows the number of bad checks received by the management of a grocery store for a period of 200 days.

The probability distribution and the cumulative probability distribution are shown in the table attached below.

Let the number of bad checks received in a day be represented by <em>X</em>.

Compute the probability that in a given day the store receives four or less bad checks as follows:

P (X ≤ 4) = P (X = 0) + P (X = 1) + P (X = 2) + P (X = 3) + P (X = 4)

              =0.04+0.06+0.10+0.30+0.20\\\\=0.70

Thus, the probability that in a given day the store receives four or less bad checks is 0.70.

Compute the probability that in a given day the store receives more than 3 bad checks as follows:

P (X > 3) = 1 - P (X ≤ 3)

              = 1 - [P (X = 0) + P (X = 1) + P (X = 2) + P (X = 3)]

              =1-[0.04+0.06+0.10+0.30]\\=1-0.50\\=0.50

Thus, the probability that in a given day the store receives more than 3 bad checks is 0.50.

4 0
3 years ago
Solve this problem what is the answer x=4.7+8.3
yanalaym [24]
X= 13 would be the answer
8 0
3 years ago
Which equation has roots of 3plus or minus sqare rt 2?
vichka [17]

Answer:

Option D is correct.

The equation with roots 3 plus or minus square root 2 is x² - 6x + 7

Step-by-step explanation:

The roots of the unknown equation are

3 ± √2, that is, (3 + √2) and (3 - √2)

The equation can then be reconstructed by writing these roots as the solutions of the quadratic equation

x = (3 + √2) or x = (3 - √2)

The equation is this

[x - (3 + √2)] × [x - (3 - √2)]

(x - 3 - √2) × (x - 3 + √2)

x(x - 3 + √2) - 3(x - 3 + √2) - √2(x - 3 + √2)

= x² - 3x + x√2 - 3x + 9 - 3√2 - x√2 + 3√2 - 2

Collecting like terms

= x² - 3x - 3x + x√2 - x√2 - 3√2 + 3√2 + 9 - 2

= x² - 6x + 7

Hope this Helps!!!

6 0
3 years ago
Help me to solve this question plez!!
dimaraw [331]

Let  First Sphere be the Original Sphere

its Radius be : r

We know that Surface Area of the Sphere is : 4π × (radius)²

⇒ Surface Area of the Original Sphere = 4πr²

Given : The Radius of Original Sphere is Doubled

Let the Sphere whose Radius is Doubled be New Sphere

⇒ Surface of the New Sphere = 4π × (2r)² = 4π × 4 × r²

But we know that : 4πr² is the Surface Area of Original Sphere

⇒ Surface of the New Sphere =  4 × Original Sphere

⇒ If the Radius the Sphere is Doubled, the Surface Area would be enlarged by factor : 4

6 0
3 years ago
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