ahmed is 4 years old than sara, 5 years ago the sum of their age was 48, write a algebric equation to represent the situation and find saras age​

Answer: 1. 34 degrees+34 degrees=68 180-68=112 so x=112 degrees

2. 84+22=106 180-106=74 so x=74 degrees

3. 126+20=146 180-146=34 so x=34 degrees

4. both angles on both sides are 40 so 40+40=80 180-80=100 so x=100 degrees

Step-by-step explanation: plz mark me brainliest [tap the crown on the bottom of an answer, if there isn't one then reload the page (there has to be 2 people who answered)]

Answer:

See below.

Step-by-step explanation:

Sin (4π/3) = -sqrt(3)/2

Cos(4π/3) = -1/2

Answer:

Step-by-step explanation:

Answer:

no it is not

Step-by-step explanation:

Let's use the Pythagorean theorem for this

a^2+b^2=c^2

60^2+63^2=88^2

3600+3969=7744

7569≠7744

This means that this triangle isn't a right triangle

Answer:

a.) t≥20

t being what tom can spend

he can spend 20 dollars or less on the present

Answer:

The [tex]pH[/tex] of the clean compound is approximately 10.495.

Step-by-step explanation:

If the cleaning ion concentration of the cleaning compound is [tex][H^{+}] = 3.2\times 10^{-11}[/tex], then the [tex]pH[/tex], no unit, of the compound is:

[tex]pH = -\log_{10} [H^{+}][/tex]  (1)

[tex]pH = -\log_{10} (3.2\times 10^{-11})[/tex]

[tex]pH = -\log_{10} 3.2 - \log_{10} (10^{-11})[/tex]

[tex]pH = -\log_{10} \frac{32}{10} +11[/tex]

[tex]pH = -\log_{10} 32 + \log_{10} 10 + 11[/tex]

[tex]pH = -\log_{10} 32 +12[/tex]

[tex]pH \approx 10.495[/tex]

The [tex]pH[/tex] of the clean compound is approximately 10.495.

Answer:

$52.324

Step-by-step explanation:

Answer:

Depth of the submarine = 668.09 feet

Step-by-step explanation:

From the figure attached,

In triangle ABC,

Distance between a navy cruiser and a nuclear submarine = 2500 feet

Angle between the water level and the submarine = 15.5°

By applying sine rule in the given triangle,

sin(∠BAC)° = [tex]\frac{BC}{AC}[/tex]

sin(15.5°) = [tex]\frac{BC}{2500}[/tex]

BC = 2500[sin(15.5)]

BC = 668.09 feet

Therefore, submarine is 668.09 feet deep in the sea.

9514 1404 393

Answer:

  (3)  y = (x -3)²

Step-by-step explanation:

Try the first value of x in each function:

  (1)  y = 3² -3 ≠ 0

  (2)  y = (3 +3)² ≠ 0

  (3)  y = (3 -3)² = 0 . . . . . . matches the table value for f(3)

  (4)  y = 3² +3 ≠ 0

__

The only viable choice is (3).

Answer:

p=90

Step-by-step explanation:

Divide 2/3 on both sides. When you divide a fraction, you actually

multiply by its reciprocal, or opposite (3/2).

2/3p=60

*3/2 *3/2

p=180/2

p=90

Hope this helps and have a great day C:

Answer:

p = 1/90

Step-by-step explanation:

determine the defined range

2/3p = 60, p = 0

then multiply both sides of the equation by 3p

2 = 180p

swap both sides of the equation

180p = 2

then Divide both sides of the equation by 180

p = 1/90 p = 0

check the solution is it in the defined range

then you should get your answers

sorry if this doesn't help

Answer:

b. (x , y) -> (-x , y)

Step-by-step explanation:

Reflection over y axis

Answer:

true

Step-by-step explanation:

Answer:

Step-by-step explanation:

you can use the side angle side formula  ( a form of Law of Cosines)

a^2 = b^2 + c^2 − 2bc cos(A)

where x = a  , then

[tex]x^{2}[/tex] =  [tex]5^{2}[/tex] +[tex]3^{2}[/tex] - 2*5*3*cos(107)

[tex]x^{2}[/tex] = 25 + 9 - 30 * (-0.292371)

[tex]x^{2}[/tex] = 25 + 9 -8.7711511

x = 5.0228 cm

His mistake was adding 12+2 when he was supposed to subtract.

Answer:

I thing Kaleigh read 1.5 more than Austin

Step-by-step explanation:

Answer:

this hurts my brain x_x my non-existent brain....

Answer:

a. ( 5 )  ( 0 ) − 2

= −2

b. ( 5 ) ( 1 ) + 8

= 13

Hope it helps

Please mark me as the brainliest

Thank you

Answer: jimmy needs a new job

Step-by-step explanation:

Answer:

12:  138

13: 35

14: 49

Step-by-step explanation:

12: 180-42=138

13: 360-297-28=35

13: 90-41=49

Answer: what the is dis s

Step-by-step explanation:

Answer:

10.

tan x=51/68

x=tan-¹(51/68)=36.87

11.

cos x=72/78

x=cos-¹(72/78)=22.62

12.

sin x=24/51

x=sin-¹(24/51)=28.07

13.

sin x=21/75

x=sin-¹(21/75)=16.26

14.

sinx =16/85

x=sin-¹(16/85)=10.85

15.

sin x=48/60

x=sin-¹(48/60)=53.13

note

relationship between base and perpendicular is given by tan angle

relationship between base and hypotenuse is given by cos angle

relationship between hypotenuse and perpendicular is given by sin angle

Answer:

all r same lol

Step-by-step explanation:

please mark me as brainliest

Answer:

A is 2

B is 1/2

C, I'm not really sure what it means

Step-by-step explanation:

Hope this helps! Please mark me brainliest

Answer:

Com o aumento da população no início da Baixa Idade Média, muitas pessoas saíram do campo para viver nas cidades. Quais trabalhos eles passaram desempenhar?

Step-by-step explanation:

Answer: Weight of the remaining block of wood =400g

Step-by-step explanation:

Total Weight of five(5) blocks = 3kg = 3000g

Weight of 4 out of the 5 blocks = 650x 4= 2600g

Weight of the remaining block of wood =Total Weight of five(5) blocks-Weight of 4 out of the 5 blocks

= 3000g-2600g

=400g

Answer:

[tex](x-2)^2+(y-5)^2=9^2[/tex]

Step-by-step explanation:

We use the equation

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Now we plug in the numbers

(h, k) = center point (2, 5)

This would equal

[tex](x-2)^2+(y-5)^2=9^2[/tex]

Answer:

Initial is $26000

It's representing decay.

9.1% change each year.

Answer:

144

Step-by-step explanation:

9*3=27

27*4=108

6^2=36

108+36=144

Answer:

[tex]\Large \boxed{\sf 144 \ ft^2}[/tex]

Step-by-step explanation:

Find the area of the 4 triangles and 1 square and add them.

Area of triangle = base × height × 0.5

Area of square = s²

[tex](9 \times 6 \times 0.5\times 4)+(6^2)=144[/tex]

Answer: 6000,00

Step-by-step explanation: