Can someone help me solve this please?

Answer:

x = 21º

Step-by-step explanation:

∆ ABC is isosceles therefor

Angles B and C are congruent

(180  - 18)/2 = 162/2 = 81º

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

∆ BCD is equilateral  therefor all angles are 60º

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

x = = 81 - 60

x = 21º

Answer:

7x

Step-by-step explanation:

Common ratio = 2nd term ÷ first term

[tex]= \frac{35x^{2}}{5x}=\frac{35 * x * x}{5 *x}\\\\= 7x[/tex]

Answer:

8

Step-by-step explanation:

x+x+7=23

2x=16

x=8

There were 8 males in the meeting.

Let us assume,

The number of males = x

Number of females = 7+x

Total people = 23

x + x+ 7= 23

2x + 7 =23

2x = 23 - 7

2x = 16

x= 8

There were 8 males in the meeting.

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Answer:

[tex]\left(-3\right)\cdot \:2+\left(-2\right)\\\left(-3\right)\cdot \:2\\\\=-6\\\=-6+\left(-2\right)\\\\=-6-2\\=-8[/tex]

I hope this is what you're looking for

Answer:

Step-by-step explanation:

Answer:

6.9 =x

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hyp

sin 35 = x /12

12 sin 35 = x

6.882917236=x

To the nearest tenth

6.9 =x

Answer:

40 degrees

Step-by-step explanation:

using 180 minus 94 we can find the inner left angle of the triangle as 86 degrees and using 86 plus 54 we get 140. 180 minus 140 for the last angle F so 40 degrees

Answer:

Step-by-step explanation:

none in the first 3 box

none in the second 3 boxes

2 in the third 3 boxes

1 in the 4th three boxes

1 in the 5th three boxes

3 in the 6th three boxes

and none in the last 3 boxes

hope this helped :D

Answer:

y = 21

Step-by-step explanation:

x = 5

y = 5 (5) - 4

y = 25 - 4

y = 21

(5 , 21)

Hope this helps!

Answer:

c = 1062

Step-by-step explanation:

first move the terms

251 - c = -811

move the constant to the right hand side and change its sign

-c = -811 - 251

calculate the difference

- c = -1062

change the signs in both sides of the equation

c = 1062

Answer:

1062

Step-by-step explanation:

811 + 251=1062

Answer:

p = 2(l+w)

= 2 ( 13 + 6)

2 ( 19)

= 38

C = 2pie r(radius)

= 2 × 22/7 × 3

= 18/6/7

38 - 18/6/7

answer = 19.14

HOPE ITS HELPS!!

plzz brainliest..

Answer: no solutions

Step-by-step explanation:

Let's solve your equation step-by-step.

3(4+x)=7x−2(2x+3)

Step 1: Simplify both sides of the equation.

3(4+x)=7x−2(2x+3)

(3)(4)+(3)(x)=7x+(−2)(2x)+(−2)(3)(Distribute)

12+3x=7x+−4x+−6

3x+12=(7x+−4x)+(−6)(Combine Like Terms)

3x+12=3x+−6

3x+12=3x−6

Step 2: Subtract 3x from both sides.

3x+12−3x=3x−6−3x

12=−6

Step 3: Subtract 12 from both sides.

12−12=−6−12

0=-18

Answer:

29°C

Step-by-step explanation:

Given the following

Highest temperature=  11°C

lowest temperature

Drop in temperature = highest - lowest

Drop in temperature = 18 - ()-11)

Drop in temperature = 18 + 11

Drop in temperature = 29°C

Answer:

Iam not able to understand ur language

Answer: 7238.2[tex]ft^3[/tex]

Step-by-step explanation:

The formula for a sphere's volume is  [tex]V=\frac{4}{3} \pi r^3[/tex].

Substitute r = 12 in the formula: [tex]V=\frac{4}{3} \pi (12)^3[/tex]

Then calculate (type the right side of the equation above in your calculator), and you will get an answer of 2304π. When you simplify further, you get 7238.22947. Rounded to the nearest tenth, it is 7238.2.

∴, the volume of the sphere is 7238.2[tex]ft^3[/tex], to the nearest tenth.

*note: it's [tex]ft^3[/tex] (feet cubed) because a sphere is a 3D object, so its volume is also a 3D measurement.

Answer:

I would guess irrational, but Can you post a pic?

Step-by-step explanation:

The result of 4√5 + 3√2 is an irrational number because it contains the irrational term 7√5, which cannot be written as the ratio of two integers and does not have a terminating or repeating decimal expansion.

A rational number is defined as a numerical representation of a part of a whole that represents a fraction number.

The number is given in the question as follows:

4√5 and  3√2

We have to determine the sum of 4√5 and 3√2.

To find the sum of 4√5 and 3√2 ​, we can simply add the two terms:

⇒ 4√5 + 3√2

⇒ (4 + 3)√5 + 0√2

⇒ 7√5

In conclusion, the result of 4√5 + 3√2 is an irrational number because it contains the irrational term 7√5, which cannot be written as the ratio of two integers and does not have a terminating or repeating decimal expansion.

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Answer:

8 cm , 9cm

Step-by-step explanation:

sum of any two sides >third side

difference of any two sides<third side

only 8 cm and 9 cm satisfies it

8+9=17>13

9-8=1<13

Answer:

B n D

Step-by-step explanation:

Answer:

100,000,000,000.90987

Step-by-step explanation:

Answer:

P = -31

Step-by-step explanation:

-1 + 14p = -435

Remove the -1 by adding it from both sides.

14p = -434

Remove the 14 by dividing it from both sides.

p = -434/14

p = -31

Answer:

-31

Step-by-step explanation:

-1+14p=-435

14p=-435-(-1)

14p=-435+1

14p=-434

p=-434/14

p=-31

Answer:

$9.00 is the cost per pizza.

Step-by-step explanation:

Jamal wildin'

Answer:

The expressions are not equivalent.

Step-by-step explanation:

Here we have two expressions:

4*(2 + p)

14 + p

We want to evaluate these two expressions in two different values of p to check if the expressions are equivalent or not.

First, we evaluate both of them in p = 2, this is just replace p by 2 in each expression and then solve it.

4*(2 + 2) = 4*4 = 16

14 + 2 = 16

In this case, we can see that both expressions yield the same number, so we could think that the expressions are equivalent, now let's try with other value of p.

Now let's do it with p = 8

4*(2 + 8) = 4*10 = 40

14 + 8 = 22

Now we can see that the results are different, then we can conclude that the expressions are not equivalent.

Answer:

Use p = 2 and p = 8 to determine if the two expressions are equivalent.

   4(2 + p)    14 + p

Complete the statements.

If both expressions have the same value after substituting two different values and simplifying, then they are

✔ equivalent expressions

.

When p = 2, the first expression is

✔ 16

and the second expression is 16.

When p = 8, the first expression is 40 and the second expression is

✔ 22

.

The expressions are

✔ not equivalent

.

Answer:

31.25'

Step-by-step explanation:

50' tower : 32' shadow

x' post : 20' shadow

Cross multiply,

x = 50*20/32 = 31.25'

Answer:

An arithmetic sequence is defined by:

[tex]a_n = a_{n-1} + d[/tex]

Here, we know that:

[tex]a_3 = 14\\a_{10} = 98[/tex]

Using the recursive relation, we can write:

[tex]a_{10} = 98 = a_9 + d[/tex]

And can keep applying the recursive relation, so we will have:

[tex]98 = a_9 + d = (a_8 + d) + d = a_8 + 2*d[/tex]

And so on, until we get to a known term:

[tex]98 = a_8 + 2*d = a_7 + 3*d = a_6 + 4*d = a_5 + 5*d = a_4 + 6*d = a_3 + 7*d[/tex]

[tex]98 = a_3 + 7*d = 14 + 7*d[/tex]

Then we can solve:

98 = 14 + 7*d

for d:

98 - 14 = 7*d

84 = 7*d

84/7 = d = 12

Now we know the value of d, we can keep using the recursive relation to find the first 3 terms:

Here, we can rewrite the recursive relation as:

[tex]a_{n-1} = a_n - d[/tex]

Then:

[tex]a_2 = a_3 - d = 14 - 12 = 2\\a_2 = 2[/tex]

[tex]a_1 = a_2 - d = 2 - 12 = -10\\a_1 = -10[/tex]

[tex]a_0 = a_1 - d = -10 - 12 = -22\\a_0 = -22[/tex]

Then the first 3 terms are:

-22, -10, 2

Answer:

x = 5

Step-by-step explanation:

13^2 - 12 ^2 = x^2

169 - 144 = x^2

25 = x^2

[tex]\sqrt{25} = \sqrt{x^2}[/tex]

x = 5

Answer:

x = 5

Step-by-step explanation:

12² + x² = 13²

144 + x² = 169

144 - 144 + x² = 169 - 144

x² = 25

√x² = √25

x = 5