Find the missing number

Answer:

C.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

x = - [tex]\frac{3}{2}[/tex] , x = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

4x² + 4x = 3 ← factor out 4 from each term on the left side

4(x² + x) = 3

to complete the square

add/subtract ( half the coefficient of the x- term )² to x² + x

4(x² + 2([tex]\frac{1}{2}[/tex] )x + [tex]\frac{1}{4}[/tex] - [tex]\frac{1}{4}[/tex] ) = 3

4(x + [tex]\frac{1}{2}[/tex] )² - 1 = 3 ( add 1 to both sides )

4(x + [tex]\frac{1}{2}[/tex] )² = 4 ( divide both sides by 4 )

(x + [tex]\frac{1}{2}[/tex] )² = 1 ( take square root of both sides )

x + [tex]\frac{1}{2}[/tex] = ± 1 ( subtract [tex]\frac{1}{2}[/tex] from both sides )

x = - [tex]\frac{1}{2}[/tex] ± 1

then

x = - [tex]\frac{1}{2}[/tex] - 1 = - [tex]\frac{3}{2}[/tex]

x = - [tex]\frac{1}{2}[/tex] + 1 = [tex]\frac{1}{2}[/tex]

Answer:

12,936

I hope this Answer your question

Answer:

15x = 75

x = 5

Step-by-step explanation:

15x - 10 = 65

15x = 65 + 10

15x = 75

x = 75/15

x = 5

PLEASE RATE!! I hope this helps!!

If you have any questions comment below

keeping in mind that regular polygon has 12 sides

[tex]\textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}ans~~ \begin{cases} a=apothem\\ n=\stackrel{number~of}{sides}\\ s=\stackrel{length~of}{a~side}\\[-0.5em] \hrulefill\\ A=214.14\\ a=8.3\\ n=12 \end{cases}\implies 214.14=\cfrac{1}{2}(8.3)(12)s \\\\\\ 214.14=49.8s\implies \cfrac{214.14}{49.8}=s\implies 4.3=s[/tex]

Answer:

it is (2): AOB = COD

Step-by-step explanation:

Answer:

A. x≠npi is right B. x≠pi/2+npi,C. x≠npi/2,D. X≠27npi are wrong

Answer:

B. pi/2 + npi

Step-by-step explanation:

trust me brother

Answer:

20 in.

Step-by-step explanation:

i just got it right on edge

Answer:

147/3=49

49 groups

Step-by-step explanation:

Answer:

5 should be the correct answer

Answer:

2.5

Step-by-step explanation:

40 divided by 16 is 2.5

Answer:

25.65634 squares cm

Step-by-step explanation:

The area of the whole circle is

pi x 7 squared

pix49 =153.93804

the degrees of a circle are 360

 60 is 1/6 of 360

so we need to divide the area by 6

153.93804/6 = 25.65634

Answer:

£13,110.49

Step-by-step explanation:

(A) = P( 1 + r/n) ^nt

P(Principal) = £200 000

r(interest rate) = 1.6% = 0.016

The total amount been saved after 4 years is calculated as:

A = P( 1 + r/n) ^ nt

A = £200,000( 1 + 0.016/1)¹× ⁴

A =  £200,000(1.016)⁴

A =  £213,110.48991

A = £ 213,110.49

Claire will get approximately £ 213,110.49 within 4 years.

Answer: 75

Step-by-step explanation:

Separate the parallelogram into two identical triangles (0.5 length by 10 height) and a rectangle (8 length by 10 height).

Work out the area of the rectangle - 8 * 10 = 80

Work out the area of the triangle - 0.5 * 10 = 5 (you don't need to halve it as you have two triangles)

Work out the area of the parallelogram - 80 + 5 = 85

Work out the area of the purple rectangle? (it says triangle in your description but I'm pretty sure that's not a triangle) - 5 * 2 = 10

Work out final area of the parallelogram - 85 - 10 = 75

I'm not sure if this is right but either way I hope you get your answer :)

Answer:

x = 20

y = 10√3, or 17.32

Answer:

A. 1/5

Step-by-step explanation:

[tex]\frac{2}{5}[/tex] ÷ [tex]\frac{2}{1}[/tex] = [tex]\frac{2}{5}[/tex] times [tex]\frac{1}{2}[/tex]

= [tex]\frac{2}{10}[/tex]

= [tex]\frac{1}{5}[/tex]

hope this helps!

Answer: A.) 1/5

Step-by-step explanation:

When dividing a fraction with a whole number we have to turn that whole number into a fraction as well

[tex]\frac{2}{5}[/tex] ÷ [tex]\frac{2}{1}[/tex]

So now we use the dividing fraction formula: [tex]\frac{a}{b}[/tex] ÷ [tex]\frac{c}{d}[/tex] = [tex]\frac{a*d}{b*c}[/tex]

So we put the numbers in their places: [tex]\frac{2}{5}[/tex] ÷ [tex]\frac{2}{1}[/tex] = [tex]\frac{2*1}{5*2}[/tex] = [tex]\frac{2}{10}[/tex]

However   [tex]\frac{2}{10}[/tex] simplified is [tex]\frac{1}{5}[/tex]

Answer:

A, D

Step-by-step explanation:

Given function:  [tex]f(x)=x^2+4x-3[/tex]

Axis of symmetry

[tex]\textsf{Axis of Symmetry formula : }x=-\dfrac{b}{2a}[/tex]

for a quadratic equation in standard form [tex]y=ax^2+bx+c[/tex]

[tex]\implies \textsf{Axis of symmetry}: x=-\dfrac{4}{2}=-2[/tex]

Maximum/Minimum point (vertex)

The max/min point is the turning point of the parabola.

The x-value of the turning point is the axis of symmetry.

[tex]\implies \textsf{Turning point}:f(-2)=(-2)^2+4(-2)-3=-7[/tex]

Turning point (vertex) = (-2, -7)

As the leading coefficient is positive, the parabola opens upwards.  Therefore, the turning point  (-2, -7) will be a minimum.

Domain & Range

Domain: input values → All real numbers

Range: output values → [tex]x\geq -7[/tex]  [as (-2, -7) is the minimum point]

End behavior

As the leading degree is positive and the leading coefficient is positive:

[tex]f(x) \rightarrow + \infty, \textsf{ as } x \rightarrow - \infty[/tex]

[tex]f(x) \rightarrow + \infty, \textsf{ as } x \rightarrow + \infty[/tex]

Answer:

Missing angle is 55°

Step-by-step explanation:

Given :-

To find:-

Solution:-

We know that the sum of all angles in a triangle is 180°

and let the unknown angle be x

So ,

90°+35°+x = 180°

x = 180° - 125°

x = 55°

Answer:

The best customary unit of measurement to measure the lengths of the rope for knot-tying would be:
Inches (in.)

Alex can also use feet, yards, and miles, but Inches are the best measurement to use in this situation.

Step-by-step explanation:

Have a great rest of your day
#TheWizzer

Answer:

1/2

Cameron made :

[tex]\sf \hookrightarrow \dfrac{2}{5} *160[/tex]

[tex]\sf \hookrightarrow 64 \ cookies[/tex]

Lindsey made :

Together:

Left to make:

Total made:-

Cookies left:-

Fraction:-

Answer:

B. Onions: 81.3 kg; Beef: 536.3 kg

Step-by-step explanation:

6.6x = 6.6*81.26 = 536.32 kg (amount of grilled steak in the taco)

i think thats right

Answer:  A. i think it is

Step-by-step explanation:

Answer:

The answer is infinitely many.

Step-by-step explanation:

5x + 3(x − 1) = 10x − 2x − 3 is simplified to 0=0, which is infinitely many solutions.

Using the z-distribution, it is found that the data provides convincing evidence that the proportion has increased.

At the null hypotheses, it is tested if the proportion has not increased, that is, the difference of the 2017 proportion and the 2014 proportions is not positive, hence:

[tex]H_0: p_2 - p_1 \leq 0[/tex]

At the alternative hypothesis, it is tested if the proportion has increased, hence:

[tex]H_1: p_2 - p_1 > 0[/tex]

For each sample, they are given by:

[tex]p_1 = 0.197, s_1 = \sqrt{\frac{0.197(0.803)}{61}} = 0.0509[/tex]

[tex]p_2 = 0.383, s_2 = \sqrt{\frac{0.385(0.615)}{52}} = 0.0675[/tex]

Hence, for the distribution of differences, they are given by:

[tex]\overline{p} = p_2 - p_1 = 0.383 - 0.197 = 0.186[/tex]

[tex]s = \sqrt{s_1^2 + s_2^2} = \sqrt{0.0509^2 + 0.0675^2} = 0.0845[/tex]

It is given by:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

In which p = 0 is the value tested at the null hypothesis.

Hence:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

[tex]z = \frac{0.186 - 0}{0.0845}[/tex]

z = 2.2

Considering a right-tailed test, as we are testing if the proportion is higher than a value, the critical value at the 0.05 significance level is [tex]z^{\ast} = 1.645[/tex].

Since the test statistic is greater than the critical value for the left tailed test, the data provides convincing evidence that the proportion has increased.

More can be learned about the z-distribution at https://brainly.com/question/26454209

(For question 1 you have to do it yourself, get a ruler and measure the actual length of the drawing, then multiply it by 8 to get the actual dimensions in the exercise. )

Example, if you measure 4 inches, the actual dimension will be 4 x 8 = 32 ft

2. (Scale drawing 1:5 is that every 1 (length units) will be equal to 5(length units) in the actual dimensions)

Model : 3ft ; 7m
Actual : 15ft ; 35m (corresponding)

Actual : 20yd ; 12.5 cm
Model : 4yd ; 2.5 cm

6. 1.5 ft = 1.5 x 12 = 18 inches.
The model is 3 inches, and the actual rose is 18 inches -> The scale of the drawing is 6. (enlargement)

Same goes to the scale factor, but this time is the quotient of the corresponding side -> 3 : 18 = 1:6.

(If I got any parts wrong just tell me, I actually kinda forgot these kind of stuff)

Answer:

1. 4/5 (0.8) | 2. 6/3 (2.0) | 2. -2/6 (0.3333...) | 4. 7/4 (1.75) |

Step-by-step explanation:

I wrote each in decimal form (if possible) and fraction form.

Brainliest please?

Answer:

Triangle - 17.5

Trapezoid - 64

Step-by-step explanation:

Triangle  - This is because the triangle formula is h x b/2 and H is 7 and B is 5 so 5 x 7 is 35 divided by 2 is 17.5.

Trapezoid - a + b/2 times h and A is 6, B is 10 and H is 8 so 6+10 = 16 and 16/2 equals 8 and 8 x 8 =64.