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2 years ago

14

Dot got a 75% on her test. She missed 12 questions. how many questions were on the test

1 answer:

AleksAgata [21]2 years ago

7 0

Well, if it was out of 50, it would be 76%.

So the answer might be 50 questions total, but maybe there was 49 questions total.

I would probably go with 50 questions total.

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I need help is it A B C Or D

Anarel [89]

Natural selection <span>is the process where organisms are more likely to reproduce. When they reproduce, they pass on traits to the next generation. Over time this process allows organisms to adapt to their environment. Giving what natural selection means, I believe the answer is D. Evolution does NOT always improve organisms.

I hope this helps:)</span>

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3 years ago

Maria has three red dresses, 2 white dresses, and one blue dress . What is the probability she will wear a blue dress at her par

dedylja [7]

Answer:

1/6

Step-by-step explanation:

there are 6 dresses altogether and 1 blue dress.

8 0

2 years ago

Read 2 more answers

If f(–5) = 0, what are all the factors of the function f (x ) = x cubed minus 19 x + 30? Use the Remainder Theorem.

oksian1 [2.3K]

(x + 5) (x - 2) (x - 3)

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2 years ago

What is 5 x 23 x 2 pemdas

Wittaler [7]

When you multiply it is just 5*23=115
115*2= 230

8 0

3 years ago

Read 2 more answers

Determine the next step for solving the quadratic equation by completing the square

GaryK [48]

Answer:

The two solutions are: $x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}$

The next and every step are below.

Explanation:

1. $-3=-2x^2+2x$ : Given (addition property / add - 3 to both sides)

2. $-3 = - 2(x^2-x)$ : Given (commom factor - 2)

3. $-3-1/2=-2(x^2-x+1/4)$

To obtain the perfect square it was added the square of half of the coefficient of x: (1/2)² = 1/4, inside the parenthesis.

Since, the terms inside the parentthesis are multiplied by - 2, you have to add - 2 (1/4) = - 1/2 to the left side of the equation.

4. Now, you have that the trinomial x² - x + 1/4 is a square perfect trinomial which is factored as (x - 1/2)² and get the expression:

$-7/2=-2(x-1/2)^2$

5. Divide both sides by - 2 to get the next expression:

$-7/4=(x-1/2)^2$

6. The last step is to extract squere root from both sides of the equality:

$(x-1/2)=+/-\sqrt{\frac{7}{4}}\\ \\ x-1/2=+/-\frac{\sqrt{7} }{2}\\ \\ x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}$

8 0

2 years ago