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3 years ago

Eighth grade F.15 Square roots of perfect squares What is 49 ?

Mathematics

2 answers:

enot [183]3 years ago

8 0

Answer:

Step-by-step explanation:

Aleksandr [31]3 years ago

5 0

Answer:

Step-by-step explanation:

because 7x7= 49

hopefully you got it right

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Question 2

Llana [10]

Hi here are the answers:)

Part A:

x = 3

Part B:

A = (3, 2)

Part C:

You can find the vertex by finding the mid-point of the focus and directrix. So the vertex is (-1, 2)

Part D:

The parabola opens left. This is because the parabola always opens toward the focus.

Part E:

The value of p is the distance from the focus to the vertex or the vertex to the directrix. To find p you can minus x-coordinate of focus with x-coordinate of the directrix, then divide it by 2. So this will be: -5-2/2 = -4

Part F:

p = -4

Part G:

$x=\frac{1}{4*-4}(y-2)^{2}-1$

Part H: image is attached down below. Fyi the C should be V (vertex)

Part I:

$x=\frac{1}{16} (y-2)^{2}-1$

*I'm not really sure about this one*

Part J:

1. x = 1/4 (y-3)>2+3

2. x = 1/12 (y +1)>2 +5

*I'm not really sure about this one either srry:(*

Hope this helped bai bye.

8 0

3 years ago

One of the legs of a right triangle measures 12 cm and the other leg measures 13 cm find the measure of the hypotenuse if necess

Amanda [17]

Answer:

17.7 cm

Step-by-step explanation:

One of the legs of a right triangle measures 12 cm and the other leg measures 13 cm find the measure of the hypotenuse if necessary round the nearest 10th

To find the Hypotenuse of a right angle triangle, we solve using Pythagoras Theorem

Hypotenuse ² = Opposite ² + Adjacent ²

Hypotenuse = √Opposite ² + Adjacent ²

Opposite = 12 cm

Adjacent = 13 cm

Hence,

Hypotenuse = √12² + 13²

= √144 + 169

= 17.691806013 cm

Approximately = 17.7 cm

Therefore, the measure of the Hypotenuse is 17.7 cm

6 0

3 years ago

8. What is the radius of a circle when the

Bezzdna [24]

Answer:

radius = circumference ÷ 2× po

Step-by-step explanation:

the radius is 2.55 but it's not in ur options

7 0

3 years ago

Read 2 more answers

How do you do this question?

Mekhanik [1.2K]

Answer:

(-∞, -2), (-2, -0.618), and (1.618, 3)

Step-by-step explanation:

The red arrows indicate the regions in which the function is decreasing.

The corresponding intervals are (-∞, -0.618) and (1.618, 3),

Let's examine the intervals given.

(-∞, -2): Yes, decreasing.

(-2, -0.618): Yes, decreasing.

(-2, 0.689): No. Decreasing in (-2, -0.618) but increasing in (-0.618, 0.689).

(-1.17, 0.689): No. Decreasing in (-1.17, -0.618) but increasing

in (-0.618, 0.689).

(0.698, 71.457): No. Increasing from (0.698, 1.618), decreasing in (1.618, 3) and increasing in (3, 71.457).

(1.618, 3): Yes, decreasing.

(2.481, ∞): No. Decreasing in (2.481, 3) but increasing in (3, ∞).

The three choices that indicate a decreasing interval are (-∞, -2),

(-2, -0.618), and (1.618, 3).

3 0

3 years ago

Natalie paid $20.7 for 3 small pizzas and a salad which was $3.

expeople1 [14]

Answer:

Step-by-step explanation:

a) Let the cost of a Pizza = $ x

Cost of three pizza's = 3 *x = 3x

cost of 3 pizza + cost of a salad = $ 20.7

3x + 3 = 20.7

b) 3x + 3 = 20. 7 {Subtract 3 from both sides}

3x = 20.7 - 3

3x = 17.7 {Divide both sides by 3}

x = 17.7/3

x = 5.9

Cost of one pizza = $ 5.9

8 0

3 years ago

Read 2 more answers