What is the area of the figure?

A. 52 cm2
B. 52 cm
O C. 130 cm
O D. 130 cm2

Answer:

[tex](d)\ x = 4[/tex]

Step-by-step explanation:

Given

[tex]f(x) = -x^2 + 4x + 12[/tex]

[tex]g(x) = x + 8[/tex]

Required

Find x such that: [tex]f(x) = g(x)[/tex]

This gives:

[tex]-x^2 + 4x + 12 = x+8[/tex]

Collect like terms

[tex]-x^2 + 4x -x + 12 -8=0[/tex]

[tex]-x^2 + 3x +4 =0[/tex]

Expand

[tex]-x^2 + 4x - x+4 =0[/tex]

Factorize

[tex]x(x - 4) - 1(x-4) = 0[/tex]

Factor out x - 1

[tex](x- 1)(x - 4)=0[/tex]

Solve:

[tex]x =1\ or\ x = 4[/tex]

Answer:

168

Step-by-step explanation:

168+8+4=180

Answer:

[-4 1 -2 - 7]

Step-by-step explanation:

[-1 - 2 4 8] + X = [-5 - 1 2 1]

X= [-5 - 1 2 1]- [-1 - 2 4 8]

X=[-5-(-1) - 1-(-2) 2-4 1-8]

X=[-4 1 - 2 - 7]

Answer:

C

Step-by-step explanation:

Correct on Edge

Answer:

13 m.

Step-by-step explanation:

Formula for perimeter of a rectangle: side + side + side + side.

In other words, add every side of the rectangle.

[tex]2.5+4+2.5+4=13.[/tex]

Therefore, 13 meters is the perimeter of this shape.

Answer:

13m

Step-by-step explanation:

Perimeter of a Rectangle: 2(L + W) where L is the Length, and W is the Width of the rectangle.

=> 2(4 + 2.5)

=> 2(6.5)

=> 13

Perimeter of the Figure = 13 m

Hope this helps!

Answer:

The 99% confidence interval for the mean nicotine content of this brand of cigarette is between 21.95 and 26.65 milligrams.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 9 - 1 = 8

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 8 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.99}{2} = 0.995[/tex]. So we have T = 3.3554

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 3.3554\frac{2.1}{\sqrt{9}} = 2.35[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 24.3 - 2.35 = 21.95 milligrams

The upper end of the interval is the sample mean added to M. So it is 24.3 + 2.35 = 26.65 milligrams

The 99% confidence interval for the mean nicotine content of this brand of cigarette is between 21.95 and 26.65 milligrams.

I think it's option 2.

Answer:

Option 2

Step-by-step explanation:

Option 2 is the answer

hope it helps uu

brainliest pls

Answer:

you need 45 nickels

Step-by-step explanation:

Answer:

6mm AR, a 6 mm wildcat version which shares 6.5 Grendel's casing, but sends a (usually) lighter projectile up to 1,000 yards (900 m). 6.5×42mm, also known as 6.5 MPC (Multi Purpose Cartridge), based on a necked up .223 Remington case.

Step-by-step explanation:

Answer: 19

Step-by-step explanation:

8+7+4

8+7=15

15+4=19

Answer:

see explanation

Step-by-step explanation:

(1)

(a)

sin(a) = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{15}{17}[/tex]

(b)

cos(a) = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{8}{17}[/tex]

(c)

tan(a) = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{15}{8}[/tex]

----------------------------------------------------

(2)

(a)

sin(b) = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{8}{17}[/tex]

(b)

cos(b) = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{15}{17}[/tex]

(c)

tan(b) = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{8}{15}[/tex]

9514 1404 393

Answer:

  -3, 7, 8

Step-by-step explanation:

You can fill in the boxes from the table values as shown in the attachment.

The leading coefficient is negative because the parabola opens downward. The value of it is the change in y-value as x changes by 1 unit either side of the vertex.

The vertex is identified by the fact that the y-values are symmetrical either side of the vertex.

Answer:

-3, 7, 8

Step-by-step explanation:

Answer:

0.33333

Step-by-step explanation:

[tex] \huge \red {\frac{1}{3}} \orange {=} \purple {0.33333} [/tex]

Hope it helps you in your learning process

Answer:

first blank is 3

second blank is 126

Step-by-step explanation:

the ratio is 2:3 so you must keep that the same in the table

The one for chocolates is 3 and the one for peppermints is 126

Answer: A and D

Step-by-step explanation:

Answer:

5.7.11.13

Step-by-step explanation:

My guess

Answer:

first 11 second is 12 and 13 third is 14

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

The ΔDGF and ΔABC can be proven similar through SSS similarity. Therefore, option D is the correct answer.

We need to find which of the given pairs of triangles can be proven similar through SSS similarity.

If all the three sides of a triangle are in proportion to the three sides of another triangle, then the two triangles are similar.

Now, form option D.

DF/AB=DG/AC=FG/BC

⇒8/2=10/2.5=11/2.75

⇒4=4=4

Thus, ΔDGF and ΔABC are similar.

Therefore, option D is the correct answer.

To learn more about the similarity visit:

https://brainly.com/question/12670209.

#SPJ5

Answer:

0.08

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

cause it a circle and it will need a little more then the number it is

Answer:

1. 2x-4=10

2. 3x+3=2x-1

3. 7x+x=24

4. 5+x=-18

5. -14=10-6x

6. 2x-2=x+12

7. 3x-31=2

8. 5x-14=16

9. 2x+8=4(5-x

10. 2x-3=3(1+x)

Explanation:

I JUST TAKEN THE QUIZ!!!!!

Answer:

h = 36 units

Step-by-step explanation:

A = 1/2bh

72=1/2(4)h

72=2h

h=36 units

Answer:

x/regular price=y

1-y=discountx100

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

Answer:

from top to bottom: 12, 17, 90

Step-by-step explanation:

the total for the first row is 45, and 2 of the numbers are 23 and 10. so, what you do is add 23 and 10 to get 33. Then you just subtract 33 from 45 to get 12.

Same with the other one. the total is 40 so you just subtract 23 from 40 to get 17.

The last one you add the numbers up. So 40+17+33 is 90.

pls mark brainliest (it is the crown)

Answer:

Sophomores in Art: 17

Freshmen in Drama: 12

Total Total: 90

Step-by-step explanation:

Total Kids in art: 40

Freshmen in art: 23

that leaves 17

Total kids in Drama: 33

Sophomores in Drama: 21

that leaves 12

Total sophomores in total: 45

Total freshmen in total: 45

That adds up to 90

Answer:

letter d

................

Answer:

I think the answer is D - 0.6

Answer:

i think its num 4

Step-by-step explanation:

Answer:

An equation is c = 15m

Step-by-step explanation:

Answer:

its 3

Step-by-step explanation:

Answer:

not Shure but I think it is 1

Answer:

50 feet

Step-by-step explanation:

Perimeter is the sum of all of the lengths of the sides.

A triangle has three sides, and three lengths are given, therefore all the sides are given.

The sum of the sides is 20 + 20 + 10 = 50

So the Perimeter is 50 feet

Answer:50

Step-by-step explanation:20+20+10=50