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Anastaziya [24]
3 years ago
15

Solve x2 + 11x + 30 = 0

Mathematics
1 answer:
Zarrin [17]3 years ago
7 0

Answer:

x = - 5, - 6

Step-by-step explanation:

x^2 + 11x + 30 = 0

x^2 + 5x + 6x + 30 = 0

x ( x + 5 ) + 6 ( x + 5 ) = 0

( x + 6 ) ( x + 5 ) = 0

x + 6 = 0

x = - 6

x + 5 = 0

x = - 5

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PLEASE HELP I HAVE TO HAVE THIS DONE TOMORROW IT'S MY LAST DAY TO TURN ANYTHING IN AND THIS SHEET IS RISKING MY GRADE
ziro4ka [17]

Answer:

12

Step-by-step explanation:

The total area is 48 and the value of x is 36 (figure 1)

you plug in 36 to the equation (square root x)(8- square root x) {figure 2}

the area of the patio is 12

3 0
3 years ago
This data set represents the widths in yards of pieces of fabric used by a sewing group. What is the mean of this data set? {113
lukranit [14]

Answer:

Mean = 55.2

Step-by-step explanation:

Given data set:   113, 14, 23, 12, 114

To find the <u>mean</u> of a data set, <u>divide</u> the <u>sum</u> of all data values by the total <u>number</u> of data values:

\large \begin{aligned}\sf Mean & = \sf\dfrac{sum\:of\:all\:data\:values}{total\:number\:of\:data\:values} \\\\\implies \sf Mean & = \sf \dfrac{113 + 14 + 23 + 12 + 114}{5}\\\\& = \sf \dfrac{276}{5}\\\\& = \sf 55.2\end{aligned}

5 0
2 years ago
Read 2 more answers
Question 20 of 21
RoseWind [281]

Answer: A. (0,2)

Y-Intercept - (0,2)

No X-Intercept.

Step-by-step explanation: f(x)=2*3 is a horizontal line to the x-axis, which means that the y-intercept is (0,2) and is no x-intercept.

Hope this helps you out! ☺

7 0
3 years ago
Malik's arts and crafts shop has a bolt of crimson velvet 32 meters long. A customer came in during the morning and bought 120 c
kaheart [24]
Mil seiscientos ochenta,centímetros; le quedan a La tienda Malik’s. 3200-1520=1680 cm
6 0
3 years ago
Select the correct answer. Which point lies on a circle with a radius of 5 units and center at P(6, 1)? A. Q(1, 11) B. R(2, 4) C
jasenka [17]

Answer:

T(9,-2)

Step-by-step explanation:

The circle has radius 5 units and center P(6,1).

The equation of this circle is

(x-6)^2+(y-1)^2=5^2

(x-6)^2+(y-1)^2=25

If Q(1,11) lies on this circle, then it must satisfy its equation.

(1-6)^2+(11-1)^2=25

(-5)^2+(10)^2=25

25+100=25, this statement is false.

If R(2,4) lies on this circle, then it must satisfy its equation.

(2-6)^2+(4-1)^2=25

(-4)^2+(3)^2=25

16+9=25, this statement is false.

If S(4,-4) lies on this circle, then it must satisfy its equation.

(4-6)^2+(-4-1)^2=25

(-2)^2+(-5)^2=25

4+25=25, this statement is false.

If T(9,-2) lies on this circle, then it must satisfy its equation.

(9-6)^2+(-2-1)^2=25

(4)^2+(-3)^2=25

16+9=25, this statement is TRUE.

The correct answer is D

6 0
3 years ago
Read 2 more answers
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