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shusha [124]
3 years ago
11

Which expression is equivalent to x2 - 8x + 13 = 0

Mathematics
1 answer:
Mila [183]3 years ago
7 0

Answer:

for 7 i believe its D

Step-by-step explanation:

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Can you put 5(3+j+2j) as a verbal expression?
liraira [26]

"Five times the sum of three, J, and two times J."

_____

Why would you want to? The math expression is much more concise and less likely to be misinterpreted.

5 0
3 years ago
A couple plans to have 3 children. Assuming the probability of having either a boy or a girl is 50%, what is the probability the
Stels [109]

Answer:

0.375

Step-by-step explanation:

The probability of having at least one girl out of 3 children can be calculated as;

P(1 girl, 2 boys) or P(2 girls, 1 boy) or P(3 girls)

Since the P(b) = P(g) = 1/2

Then the probability at any point in time is 1/2 * 1/2 * 1/2 = 1/8

So we have ;

1/8 + 1/8 + 1/8 = 3/8 = 0.375

4 0
3 years ago
-10.7+-3.5 <br> I don’t understand yes I know I am dumb :D
lesya [120]

Answer: -14.2 hoped this help kiddo

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What’s the area of the figure below?
TEA [102]

Answer:

482.5 ft^2.

Step-by-step explanation:

The figure can be regarded as a rectangle with a triangle cut out of one corner.

The base of the triangle = 25-20 = 5 in and the height = 20 - 13 = 7 in.

The required area = area of rectangle - area of triangle

= 25*20 - 1/2 * 5 * 7

= 500 - 17.5

= 482.5 ft^2

5 0
3 years ago
Read 2 more answers
Hector's service club is raising money by wrapping presents in the mall. The function f\left(x\right)=3xf(x)=3x describes the am
mestny [16]

Given:

The function f(x) describes the amount of money, in dollars, the club will earn for wrapping x presents.

f(x)=3x

To find:

The f(658).

Solution:

We have,

f(x)=3x

Substitute x=658 to find the value of f(658).

f(658)=3(658)

f(658)=1974

It means, the club will earn $1974 for wrapping 658 presents.

Therefore, f(658)=1974.

7 0
3 years ago
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