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4 years ago

I really don't get this im so confused

Mathematics

2 answers:

Tanzania [10]4 years ago

6 0

Answer:

Step-by-step explanation:

m<ABC=90 because of Angle inscribed in Semicircle Theorem

DiKsa [7]4 years ago

5 0

Answer:

90 degrees.

Step-by-step explanation:

m < ABC = 90 degrees (because it's the angle in a semicircle).

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A baker made 20 pies. a boy scout troop buys one–fourth of his pies, a preschool teacher buys one–third of his pies, and a cater

aleksklad [387]

One-fourth + one-sixth + one-third

<span>three plus two plus four /12 = 9/12 = 3/4 </span>

<span>So, balance = 1/4 = 1/4 times 20 = 5 pies which is the answer!

Hope this helps!! Pleaseeee, Hit that Thanks button ;D</span>

7 0

4 years ago

What is the product of (2x - 1) (x + 4)

nikdorinn [45]

Answer: 2 $x^{2}$ +7x-4

Step-by-step explanation:

Product implies multiplication so just multiply it out.

(2x-1) (x+4)

2x^2+8x-1x-4 (Combine like terms)

2x^2+7x-4

8 0

2 years ago

2 raise to -3 can be written as _____________

scZoUnD [109]

Answer:

Step-by-step explanation:

2^(-3) = 1/2^3 = 1/8

A minus means put the number in the numerator if it was in the denominator.

A minus means put the number in the denominator it was in the numerator.

If there is no denominator, create one.

8 0

3 years ago

The graph shows the solution to which system of inequalities?

Salsk061 [2.6K]

Answer:
b. y ≤ x + 1 and y > x - 3

Explanation:
First of all, remember that a solid line means the inequality has a ≤ or ≥ sign, and a dotted line means the inequality has a < or > sign.
One way to solve this is to find a point inside the shaded region, like (0, 0) that you can test in the options to see which ones work. Another method is to figure out what the graph of each line is and then make sure the signs are turned the right direction so the shading is correct.
We know that the first inequality should have a greater/less than or equal to sign because the line is solid and the second inequality should just be a greater/less than sign because the line is dotted. That means it has to be B, because this is the only correct combination of signs.
But to be sure, you should check. Try (-1,0) and (0, 0)
y ≤ x + 1 and y > x - 3
0 ≤ -1 + 1 0 > - 1 - 3
0 ≤ 0 yes 0 > - 4 yes

0 ≤ 0 + 1 0 > 0 - 3
0 ≤ 1 yes 0 > -3 yes

3 0

3 years ago

Imagine you have a pair of six-sided dice. What's the

Ksivusya [100]

Answer:

The probability of rolling a seven or rolling an even number as the sum of the two dice is $\frac{2}{3}$

Step-by-step explanation:

Given : Imagine you have a pair of six-sided dice.

To find : What's the probability of rolling a seven or rolling an even number as the sum of the two dice?

Solution :

Rolling a pair of six-sided dice,

(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)

(2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)

(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6)

(4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)

(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6)

(6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)

Rolling a seven as the sum of the two dice are (1,6),(2,5),(3,4),(4,3),(5,2),(6,1)

Rolling an even number as the sum of the two dice are (1,1),(1,3),(1, 5),(2, 2),(2, 4),(2, 6) ,(3, 1),(3, 3),(3, 5),(4, 2),(4, 4),(4, 6),(5, 1),(5, 3),(5, 5),(6, 2),(6, 4),(6, 6).

Favorable outcome of rolling a seven or rolling an even number as the sum of the two dice are (1,6),(2,5),(3,4),(4,3),(5,2),(6,1), (1,1),(1,3),(1, 5),(2, 2),(2, 4),(2, 6) ,(3, 1),(3, 3),(3, 5),(4, 2),(4, 4),(4, 6),(5, 1),(5, 3),(5, 5),(6, 2),(6, 4),(6, 6) - 24

The probability is given by,

$\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total outcome}}$

$\text{Probability}=\frac{24}{36}$

$\text{Probability}=\frac{2}{3}$

Therefore, the probability of rolling a seven or rolling an even number as the sum of the two dice is $\frac{2}{3}$

5 0

3 years ago