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2 years ago

Please help me! Will give brainlst :)

Mathematics

1 answer:

tigry1 [53]2 years ago

3 0

Answer:

9. the measure of DEF is 103°

10. the measure of DEG is 77°

11. 90°

Step-by-step explanation:

it's pretty simple, just take into consideration that the final measure of all the angles of a triangle must be 180°

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Which of the following options have the same value as 30\%30%30, percent of 818181?

Nataly_w [17]

Answer:

Option B is correct = $0.3 \times 81$

Step-by-step explanation:

<u>The complete question is:</u> Which of the following options have the same value as 30% of 81?

Group of choices is:

(A) $\frac{30}{100}\times 81 \times 100$

(B) $0.3 \times 81$

(D) $\frac{3}{10}\times 81 \times 10$

(E) $30 \times 81$

Now, the expression given to us is 30% of 81.

Simplifying the above expression we get;

30% of 81 = $\frac{30}{100} \times 81$

= $\frac{3}{10} \times 81$ = $0.3 \times 81$

Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

$\frac{30}{100}\times 81 \times 100$ = $30 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (B) is given;

$0.3 \times 81$

<u><em>This matches with our answer, so this option is correct.</em></u>

Option (C) is given;

$0.03 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (D) is given;

$\frac{3}{10}\times 81 \times 10$ = $3 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (E) is given;

$30 \times 81$

This doesn't match with our answer, so this option is not correct.

6 0

3 years ago

Determine the equation of the circle graphed below.<br> (help fast ez pts)

ikadub [295]

Answer:

(x + 4)² + (y + 7)² = 4

Step-by-step explanation:

4 0

1 year ago

Carl wants to find the product 30×56.

ozzi

Answer:

Your answer will be D. He knows that 30 × 16 is 5 then multiples 5 by 5 to get 25.

4 0

2 years ago

If g(x)= x^2-2x-6 and h(x)= 2x^2-5x+2 find (h-g) (-2)

Natalka [10]

Answer:

Step-by-step explanation:

g(x) = x² - 2x - 6

h(x) = 2x² - 5x + 2

To find (h-g) (-2) we must first find h - g(x)

To find h - g(x) subtract g(x) from h(x)

We have

To find (h-g) (-2) substitute the value of x that's - 2 into (h - g)(x) that's replace every x in (h - g)(x) by - 2

That's

We have the final answer as

Hope this helps you

7 0

3 years ago

NEED HELP FAST<br> 30nPOINTS FOR BRAINLIEST<br><br><br> √5x + √6 = √9

vodka [1.7K]

$\sqrt{5x}$ + √6 = √9

The first step is to get $\sqrt{5x}$ by itself. We can do this by subtracting $\sqrt{6}$ from each side, and simplifying $\sqrt{9}$

$\sqrt{5x}$ = 3 - $\sqrt{6}$

Now we square both sides

5x = (3 - $\sqrt{6}$ )²

Using the formula (a - b)² = a² -2ab + b², (3 - $\sqrt{6}$ )² = 15 - 6 $\sqrt{6}$

5x = 15 - 6 $\sqrt{6}$

x = $\frac{15 - 6\sqrt{6}}{5}$

8 0

3 years ago

Read 2 more answers