If we add 7 to twice a number , we get 49. Find the number​

Answers

Answer 1
The number is 21.
2x+7=49
-7 -7
2x=42
divide by 2
x=21

Related Questions

In the Special Right Triangle below, solve for the value of y. Y = _____ (keep your answer in simplest radical form)

Options
6
6√3
6√6
12
12√2
18
12√3

Answers

Answer:

Step-by-step explanation:

y=6x

need this asap please

Answers

Answer: I drew on the picture, don’t worry it’s not a scam

Step-by-step explanation:

A dilation has center (0,0). Find the image of the point L(6-8) for the scale factor 7.

Answers

Answer:

D (42,-56)

Step-by-step explanation:

Scale factor means you multiply, so you multiply (6,-8) by 7.

6 x 7 is 42 and 7 x -8 is -56. So your answer is D (42,-56).  

a new youth sports center is being built, the perimeter of the rectangle playing field is 302 yards. the length of the field is 2 yards less than double the width. what are the dimensions of the playing field?

Answers

Answer:

can we do zoo mmmmmmm...

PLEASEEE HELPPP :((((

Answers

Answer:

1. 15

2. -30

3. -67

4. 28

Your welcome :)

Step-by-step explanation:

Answer:

15 degrees above zero = 15

30 degrees below zero = -30

67 degrees below zero = -67

28 degrees above zero = 28

Step-by-step explanation:

HOPE THIS HELPS!

Colleen earns $5 for each hour of yard work. Write an equation that shows the relationship between the time spent x and the amount earned y.

Write your answer as an equation with y first, followed by an equals sign

Answers

Answer:

Easy

Step-by-step explanation:

Y=5x

I hope this helps

Find the missing measurement using the pathagreham theorem. Show steps​

Answers

a^2+b^2=c^2

a=15

b=25

15^2=225

25^2=625

225+b^2=625

b^2=400

b=20

Step-by-step explanation:

you can use right angle triangle to do the calculation

1.02 sinusoidal graphs
WHAT IS THE MAXIMUM OF THE SINUSOIDAL FUNCTION?
Enter your answer in the box.

___

Answers

Answer:

[tex]\displaystyle -2[/tex]

Step-by-step explanation:

[tex]\displaystyle \boxed{y = 2cos\:(\frac{4}{13}\pi{x} - \frac{\pi}{2}) - 4} \\ \\ y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -4 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{1\frac{5}{8}} \hookrightarrow \frac{\frac{\pi}{2}}{\frac{4}{13}\pi} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{6\frac{1}{2}} \hookrightarrow \frac{2}{\frac{4}{13}\pi}\pi \\ Amplitude \hookrightarrow 2[/tex]

OR

[tex]\displaystyle \boxed{y = 2sin\:\frac{4}{13}\pi{x} - 4} \\ \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -4 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{6\frac{1}{2}} \hookrightarrow \frac{2}{\frac{4}{13}\pi}\pi \\ Amplitude \hookrightarrow 2[/tex]

You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the sine graph, if you plan on writing your equation as a function of cosine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = 2cos\:\frac{4}{13}\pi{x} - 4,[/tex] in which you need to replase "sine" with "cosine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the sine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the cosine graph [photograph on the right] is approximately shifted [tex]\displaystyle 1\frac{5}{8}\:unit[/tex]to the left, which means that in order to match the sine graph [photograph on the left], we need to shift the graph FORWARD [tex]\displaystyle 1\frac{5}{8}\:unit,[/tex]which means the C-term will be positive, and by perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{1\frac{5}{8}} = \frac{\frac{\pi}{2}}{\frac{4}{13}\pi}.[/tex]So, the cosine graph of the sine graph, accourding to the horisontal shift, is [tex]\displaystyle y = 2cos\:(\frac{4}{13}\pi{x} - \frac{\pi}{2}) - 4.[/tex]Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph approximately hits [tex]\displaystyle [-6\frac{1}{2}, -4],[/tex]from there to the y-intercept of [tex]\displaystyle [0, -4],[/tex]they are obviously approximately [tex]\displaystyle 6\frac{1}{2}\:units[/tex]apart, telling you that the period of the graph is [tex]\displaystyle 6\frac{1}{2}.[/tex]Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = -4,[/tex]in which each crest is extended two units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.

**Now, the maximum value is the highest possible value the graph touches, and in this case, the graph's highest peaks cycle around [tex]\displaystyle y = -2,[/tex]therefore the maximum of this sinusoidal function is [tex]\displaystyle -2.[/tex]

I am delighted to assist you at any time.

HELP ME PLS WILL MARK BRAINLISTT!!!!

Answers

Answer:

4,4

Step-by-step explanation:

Answer:

(5,3)

Step-by-step explanation:

visualize it on a graph

In a cafeteria, 1 10 of the students are eating salads , and 2 5 are eating sandwiches. There are 20 students in the cafeteria. How many students are eating lunches other than salads or sandwiches?

Answers

Answer:Number of students eating lunches other than salads or sandwiches= 10

Step-by-step explanation:

Number of students in the cafeteria=20

Number of students eating salads=1/10 X 20= 2

Number of students eating sandwiches= 2/5 x 20 = 8

Number of students eating lunches other than salads or sandwiches=

Number of students in the cafeteria -(

Number of students eating salads +Number of students eating sandwiches)

=20-(2+8)

=20-10

=10 students.

find the slope of the line that passes through 10, -8 1,12

Answers

Answer:

im really bad at math but here

Step-by-step explanation:

hi my  

Select the correct answer. Consider these functions: What is the value of f(g(-2))? A. -28 B. -12 C. 12 D. 146

Answers

Answer:

c

Step-by-step explanation:

What number would you add to each side of the inequality to solve:

13 < 4n - 14.4 ?

Answers

13 < 4n - 14.4

13 + 14.4 < 4n - 14.4 + 14.4

27.4 < 4n + 0

27.4 < 4n

27.4 / 4 < 4n / 4

6.85 < 4n / 4

6.85 < n * (4 / 4)

6.85 < n * (1)

6.85 < n


>>>the final answer is: n > 6.85

6. What is the center and the radius ( x + 1)^2 + (y - 5)^2 = 2^2
Center (-1,-5) radius= 2
Center (1,-5) radius= 2
Center (-1, 5) radius= 4
Center (-1, 5) radius= 2

Answers

Answer:

The equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where h, k, is the center and r is the radius.

So, in this case: the center is (-1, 5) and the radius is 2.

Let me know if this helps!

In ΔRST, the measure of ∠T=90°, ST = 3.1 feet, and TR = 7 feet. Find the measure of ∠S to the nearest tenth of a degree.

Answers

Answer:

66.1

Step-by-step explanation:

Answer:

S=66.1135≈66.1  ∘

STEP BY STEP : Deltamath

Pls help me ASAP and ill give brainliest

Answers

Answer:

The answer is A

PLEASE HELP ASAP WILL GIVE BRAINLY

Answers

1st = (-4,5)

2nd = (-2,3)

3rd = (0,1)

4th = (2,-1)

5th = (4,-3)

1 = (-4,5)
2= (-2,3)
3= (0,1)
4= (2,-1)
5= (4,-3)

After some time, the water evaporates and the pan is 13 full. How much water, in cubic inches, evaporates from the pan?

Answers

Answer: 16 inch

Step-by-step explanation:

I believe it’s because when your work it out it gives you 16 inch

Set A contains 35 elements and set B contains 22 elements. If there are 40 elements in (A ∪ B) then how many elements are in (A ∩ B)?

Answers

Answer:

17

Step-by-step explanation:

The computation of the number of elements are in (A ∩ B) is shown below;

Given that

Set A contains 35 elements

And, set B contains 22 elements

Now if there are 40 elements in (A ∪ B)

So, the number of elements are in (A ∩ B) is

= 35 + 22 - 40

= 17

The number a 102 is about 8 times greater than bx 103.
Find the correct value of a and b.
?

Answers

The answer for it is 12

We’re getting married bro

Answers

Answer:

It's not that hard so lets get a divorce bro

Step-by-step explanation:

plsss help i’ll give brainly...but pls give a correct answer

Answers

Answer:

3

Step-by-step explanation:

Terms are separated by symbols for operations (like plus, minus, multiply, divide.)

So your terms would be

8y

+z

-6

I need serious help

Answers

Answer:

a. 3

b. 12

c. 4

Step-by-step explanation:

the equation is y= -3x+ 12, so the slope says you will lose 3 gallons of gas every hour

After 10% tax, the phone cost $220. What was the original price?​

Answers

Answer:

$198

Step-by-step explanation:

To find how much the tax was, we multiply 10% by 220. We do this in decimal form, so we write it as 0.1*220. 0.1*220 is 22. Although, we don't stop there. Now that we know how much tax is, we must subtract the tax from the price with tax to find the OG price. 220-22 is 198. That means our answer is $198. Hope this helps!

PLEASE HELP

If 45 girls participated in basketball, then how many students
are in the girls athletics program?

Answers

Answer:

150

Step-by-step explanation:

Let there are 'x' girls. According to the given chart, 30% of the total girls participitated in basketball. As well as, we are provided with the statement '45 girls participated in basketball'

=> 30% of x = 45

=> 30/100 × x = 45

=> x = 45 x 100/30

=> x = 150

Select the polynomials that are a difference of squares. Thank you so much for helping me!


y^4−2

25m^2n^4−1

p^8−q^4

16x^2−24

Answers

Answer:

a

Step-by-step explanation:

Select the polynomials that are a difference of squares. Thank you so much for helping me!

RS and RT are tangents to the circle center o. Angle SRT=40 degrees. What is the size of angle SUT

Answers

Answer: is c (70 degrees) I hope it helps anyone.

Step-by-step explanation:

RS is a tangent ⇒ ∠OSR = 90°

RT is a tangent ⇒ ∠OTR = 90°

OSRT is a quadrilateral, so has an angle sum of 360°

⇒ ∠OSR + ∠SRT + ∠OTR + ∠SOT = 360°

⇒ 90° + 40° + 90° + ∠SOT = 360°

⇒ 220° + ∠SOT = 360°

⇒ ∠SOT = 140°

Now use the Angle at the Center Theorem

∠SUT = ½ × ∠SOT = ½ × 140° = 70°

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Answers

Answer: 3

Step-by-step explanation:

At x = -2, y = 3

simplify 6 radical 27​

Answers

The result can be shown in multiple forms.
Exact Form:
√2

3
Decimal Form:
0.47140452

Give an example of two other body systems that work together, and explain how they support each other

Answers

Answer:

Two systems that work very closely together are our cardiovascular and respiratory systems. The cardiovascular system includes your heart and blood vessels, which function to remove deoxygenated blood from and return oxygenated blood throughout your body. ... The heart then sends the oxygenated blood out to the body.

Step-by-step explanation:

Answer:

Two systems that work very closely together are our cardiovascular and respiratory systems. The cardiovascular system includes your heart and blood vessels, which function to remove deoxygenated blood from and return oxygenated blood throughout your body. ... The heart then sends the oxygenated blood out to the body.

Step-by-step explanation:

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