All categories

3 years ago

What number must you add to complete the square? X2+8x=-3 A. 8 B. 16 C. 4 D. 64

Mathematics

2 answers:

GREYUIT [131]3 years ago

4 0

Answer:

I think it is 16

mihalych1998 [28]3 years ago

3 0

The answer is most likely b)16

You might be interested in

Solve the following:<br> a) 4x-3 = 2x + 7<br><br> b)<br> 2x+6=7x14

Igoryamba

$\huge \qquad \qquad \sf \underline{Answer}$

$\textbf {Let's Solve :}$

<h3>Question 1 :</h3>

$\textsf{4x - 3 = 2x +7}$

$\textsf{4x -2x = 3 +7}$

$\textsf{2x = 10}$

$\textsf{x=5}$

<h3>Question 2 :</h3>

$\sf{2x + 6 = 7 \times 14}$

$\sf{2x + 6 = 98}$

$\sf{2x = 98-6}$

$\sf{2x = 92}$

$\sf{x=46}$

6 0

2 years ago

Write the product using exponents. 1/5 x 1/5 x 1/5 x 1/5 x 1/5

damaskus [11]

Answer: 1/5 with an exponent of 5.

hope this helps :)

7 0

2 years ago

I need help please.

Maslowich

Answer:

7-5m/m

Step-by-step explanation:

3 0

3 years ago

Arthur is cutting construction paper into rectangles for a project. He needs to cut one rectangle that is 16 inches × 12 1 4 inc

kodGreya [7K]

Answer:

303.63 sq inches

Step-by-step explanation:

We need to find the area of the two rectangles he cuts and add them together.

The area of a rectangle is given as:

A = L * B

The first rectangle is 16 inches × 12 1/4 inches. Its area is:

A = 16 * 12 1/4 = 16 * 49/4 = 196 sq inches

The second rectangle is 10 1/2 inches by 10 1/4 inches. Its area is:

A = 10 1/2 * 10 1/4 = 21/2 * 41/4 = 107.63 sq inches

The total square inches of construction paper that he needs is:

196 + 107.63 = 303.63 sq inches

4 0

3 years ago

What is the measure of NRS?

never [62]

Answer:

Step-by-step explanation:

(7x - 1) + 79° = 21x + 8

• An exterior angle of a triangle is equal to the sum of its two interior opposite angles.

$(7x - 1) +79 = 21x + 8 \\ 7x - 1 + 79 = 21x + 8 \\ 7x + 78 = 21x + 8 \\ 78 - 8 = 21x - 7x \\ 70 = 14x \\ \frac{70}{14} = x \\ 5 = x \\$

NRS = 21x + 8

$21x + 8 \\ 21(5) + 8 \\ 105 + 8 \\ {113}^{o}$

6 0

2 years ago