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3 years ago

Which statement explains why 49 is a perfect square?

Mathematics

1 answer:

TEA [102]3 years ago

6 0

Answer:

v nb jh

Step-by-step explanation:

learn some stuff my g

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Help soon as possible

ratelena [41]

Answer:

Step-by-step explanation:

1. x^2 + 6x = 5

x^2 + 6x + 9 = 14

(x+3)^2 = 14

x = $\sqrt{14}$ - 3

2. x^2 + 8x -4 = 0

x^2 + 8x = 4

x^2 + 8x + 16 = 20

(x+4)^2 = 20

x = $\sqrt{20}$ - 4

4 0

3 years ago

(To be answered in the next 20 minutes)

g100num [7]

Answer:

1.) 9/5 or 1.8 or 1 4/5

2.) 17/2 or .53125 or 8 1/2

6 0

3 years ago

R+5=3r+7 solve each equation. Combine like terms

sveta [45]

R+5=3r+7
-5 -5
r=3r+2
-3r -3r
-2r=2
÷-2 ÷-2
r=-1

8 0

3 years ago

2. A line with slope passes through the point (1,3

Burka [1]

Answer:

Step-by-step explanation:

If a line with a slope passes through a point with a value such as in this one, which is (1,3), then it must have a y-intercept and a slope. The y-intercept is when the x-value's value is 0 but the y-value is more than 0.

(3,6) is on the line as it corresponds with the slope.

(0,0) is not on this line as the y-value nor the x-value has a coordinate, which is a requirement to make it an ordered pair.

5 0

2 years ago

the population of students in a school is 810. if this is represeted on a pie chart, calculate the sectorial angle for a class o

dangina [55]

Answer:

32°

Step-by-step explanation:

The population of students in a school is 810.

We want to find the sectoral angle that corresponds to 72, if we should represent this on the pie chart.

This is given by number of students in class over total times 360.

$= \frac{72}{810} \times 360 = 32 \degree$

The required central angle is 32°

8 0

4 years ago