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Nikolay [14]
3 years ago
13

Helppp mehh plzz..............

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
5 0

Answer:

i think it A

Step-by-step explanation:

bulgar [2K]3 years ago
5 0
The answer is A ...it probably the best logical ideas to solve it
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An engineering scale model shows a church that is 2 inches tall. If the scale is 1 inch = 265 feet, how tall is the actual churc
Nitella [24]
That would be 2 * 265  = 530 feet tall.
4 0
3 years ago
Y=5x^2-8x-12 <br><br><br> linear , exponential , or quadratic and why
Assoli18 [71]

Answer:

Quadratic

Step-by-step explanation:

This is a quadratic equation because it's in the form of y=ax^2+bx+c

If it were linear, the graph would be a straight line and wouldn't contain a second degree term

If it were exponential there would be a growth or decay factor

4 0
3 years ago
Help me please <br> solve: -11x^2-44=0
Cerrena [4.2K]

Answer:

1.1      Factoring:  x2-44  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 44 is not a square !!

Step-by-step explanation:

7 0
2 years ago
What belongs in the box marked with the question mark in the proof? Given: 4x + 1 = 6x - 2, Prove: x = 3/2
Tems11 [23]
We have the following expression:
 4x + 1 = 6x - 2
 We clear x of the expression.
 We pass the variables to the right and the constant terms to the left:
 1 + 2 = 6x-4x
 We rewrite the expression:
 3 = 2x
 We passed the 2 to divide:
 3/2 = x
 Answer:
 
The value of x is:
 
x = 3/2
6 0
3 years ago
A medical device company knows that 11% of patients experience injection-site reactions with the current needle. If 4 people rec
Orlov [11]

Answer:  0.6274

Step-by-step explanation:

Given: The proportion of patients experience injection-site reactions with the current needle : p=0.11

Sample size : n= 4

Let x be a binomial random variable that represents the people get an injection-site reaction.

Binomial probability formula: P(X=x)= ^nC_x p^x(1-p)^{n-x}

The required probability : P(x=0)

=\ ^4C_0(0.11)^0(1-0.11)^4\\\\=(1)(1)(0.89)^4\\\\=0.62742241\\\approx0.6274

Hence, the  probability that none of the 4 people get an injection-site reaction =  0.6274

6 0
3 years ago
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