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3 years ago

60 POINTS!!!!!!!!!!!

Mathematics

2 answers:

melamori03 [73]3 years ago

8 0

The answer is
A and E Hope this helps!!

poizon [28]3 years ago

6 0

The points outside the Parobla would satisfy it, so the points A & E are the 2 correct ones

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Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. tan^2 B = 4

Anettt [7]

<u>ANSWER</u>

$B=63\degree$

<u>EXPLANATION</u>

We want to solve the trigonometric equation;

$tan^2(B)=4$ , where $0\degree \le B \le 90\degree$ .

Taking square root of both sides gives,

$tan(B)=\pm \sqrt{4}$

$tan(B)=\pm 2$

Since B is in the first quadrant, we proceed with;

$tan(B)=2$ , because the tangent ratio is positive in the first quadrant.

$\Rightarrow B =arctan(2)$

$\Rightarrow B =63.43\degree$ .

Correct to the nearest degree,

$B =63\degree$

7 0

3 years ago

A group of friends decided to buy a bulk of chocolate from a candy store if some friends each want 1 half of a kilogram of choco

notsponge [240]

12 People would be able to have 1 half kilogram of chocolate.
In order to solve this problem you have to multiply 6 by 2. There are two halves in a whole. 6 times 2 is equal to 12.

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4 years ago

Which of the following graphs represents the solution to the inequality 4x – 12 – x ≥ 3?

zubka84 [21]

Answer:

x≥5

Step-by-step explanation:

..... . .............

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3 years ago

What simple interest rate is needed for $6,000 to earn $1,000 in 15 months

Mekhanik [1.2K]

let's recall that a year has 12 months, so 15 months is really 15/12 years.

$\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill&\$1000\\ P=\textit{original amount deposited}\dotfill & \$6000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\to \frac{15}{12}\dotfill &\frac{5}{4} \end{cases}$

$\bf 1000=(6000)r\left( \cfrac{5}{4} \right)\implies 1000=7500r\implies \cfrac{1000}{7500}=r\implies \cfrac{2}{15}=r \\\\\\ \stackrel{\textit{converting that to a percentage}}{\cfrac{2}{15}\cdot 100 = r\implies \cfrac{40}{3}=r}\implies \stackrel{\%~\hfill }{13.\overline{3}}=r$

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3 years ago

If (7^0)^x = 1, what are the possible values of x?

dezoksy [38]

(7^0)^x = 1

7 power zero is 1.

(1^x) = 1

So x can be any value.

x could be, -2, -3, 1, 0, 3, 5, 1.8, -1.5,

x could be any number positive or negative or even zero.

5 0

4 years ago