Evaluate 3x + 7 for x = 5.

Answers

Answer 1

Answer:

22

Step-by-step explanation:

If x = 5, then plug 5 in for x .

3(5) + 7

15 + 7 = 22

Answer 2

Answer:

22

Step-by-step explanation: 3x + 7

3*5 = 15

15+7=22


Related Questions

Could someone please help me with this question due in 3 minutes (ASAP)

Answers

Answer:

Area of a rectangulor pentagon =(1/2)(apothem)(perimeter)

apothem=6.5cm

perimeter=6.5

Step-by-step explanation:

(b) A farmer uses of his land to plant
cassava, of the remaining land to plant
maize and the rest vegetables. If
vegetables cover an area of 10 arces, what
is the total area of the farmer's land.​

Answers

Answer:

Cassava = ⅓ or 33.333%

Maize = ⅔x⅔ = 44.444%

total so far =77.777%

Remaining vegetable area =(100–77.777%) = 22.222%

If remaining area vegetables = 22.222% = 10 acres

Maize = ⅔x⅔ = 44.444% or 20 acres

Cassava = ⅓ or 33.333% or 15 acres

Total land area = 45 acres.

Step-by-step explanation:

Find the Area please.

9in, 5in, 4in, 6in, 4in, 10in, 6in, 8in, 18in

Answers

Answer:

The answer is 269 in.

hope this helps!

Sorry I’m late oops

Step-by-step explanation:

Please help:) I really need help

Answers

Answer:

.translation(x, y)  →(x+h, y+k)

reflection of (x,y)→(−x,y) on y-axis

reflection of (x,y)→(x,-y) on x-axis

Select all equations that have graphs with the same y-intercept. y = 3x - 8 y = 3x - 9 y = 3x + 8 y = 5x - 8 y = 2x - 8 y = ⅓x - 8

Answers

The y intercept is the one without the x with it so all the -8 ones are the same intercept

A scientist is testing a strong elastic cord for an experiment. For every 10 pounds she adds to the cord, the cord stretches 1.5 inches. She writes the equation W = kl to represent this relationship, where W is weight applied and l is the length the cord stretches. What is the constant of proportionality in her equation?

Answers

A scientist is testing a strong elastic cord for an experiment. For every 10 pounds she adds to the cord 36 , the cord stretches 1.5 inches. She writes the equation W = kl to represent this relationship, where W is weight applied and l is the length the cord 25 this us What is the constant of proportionality in her equation? Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. ... The needs of math arose based on the wants of society. The more complex a society, the more complex the mathematical needs.

Can someone help me?

Answers

i’m not sure sorry but if you look up the definition you could probably get the answer!

hello help please i’ll mark brainliest!!!

Answers

Answer:

A waxing gibbous moon is in the sky when darkness falls. It lights up the early evening. It appears more than half lighted, but less than full.

Step-by-step explanation

I need help with #2 help if u can

Answers

Answer:

Step-by-step explanation:

G

Nancy’s rectangular garden has a diagonal of 18.4 feet and a width of 7 feet. If she needs to paint the floor, how much area is she going to cover?

Answers

Answer:

17

Step-by-step explanation:

The computation is shown below:

Here we applied the pythagoras theroem

Given that

Diagonal of 18.4 feet

Width of 7 feet

So, the area would be

= 18.4^2 - 7^2

= 17

Which represents the interval for any local max(s)?
a: (- ∞, - 1) U ( 1, 5)
b: (0, ∞)
c: (1, 5)
d: (0, 4)

Answers

Answer:

c

Step-by-step explanation:

Plz help due soon!!!

Answers

sorry, I can't help. you didn't add an attachment to help us help you

1/2x+4=20 solve for x.. Help?

Answers

Answer: 32

Step-by-step explanation: ok so here is what i do for those I grab a caculator (desmos online caculator i like to use but not required) then ill do (1/2×x)+4 but then once i write that i go back to the x delete the x and keep putting random numbers in higher and higher by one till the i get the answer (example: for this one i wrote that than i removed the x in it and did 1/2×5+4 then when that did not equal 20 i turned the 5 into a 6 then 6 was wrong so 7, then 8, then i just skipped to 20 then 20 was still wrong so skipped to 30, 30 was also wrong but CLOSE so then i tried 31 then 32 till the answer was 20 and when i did 32 it did say 20) hopes this helps

Answer: x=32

Step-by-step explanation:

1/2x+4=20

      -4   -4

1/2x=16

Multiply by 1/2 on each side

x=32

Two numbers have these properties
- Both numbers are greater than 8
- HCF is 8
-LCM is 80
What are the two numbers?
Please add an explanation, thank you!

Answers

Step-by-step explanation:

yea the answer us 8dj but u jejrjfjfjdjdjjfjfjcj

Fill in the missing numbers
I need an answer ASAP

Answers

Answer:

the missing numbers be 60 and 6 respectively

Step-by-step explanation:

The computation of the missing numbers are shown below:

Let us assume the missing numbers be x

a/

, [tex]\frac{1}{2} \times 30 = \frac{1}{4} \times x\\\\15 = \frac{1}{4} \times x\\\\x = 60[/tex]

b.

[tex]\frac{1}{3} \times 12 = \frac{2}{3} \times x\\\\4 = \frac{2}{3} \times x\\\\x = 6[/tex]

Hence, the missing numbers be 60 and 6 respectively

Find the value of that makes DEF~XYZ

Answers

Answer:

DEF~XYZ

xz/DF=xy/de in similar triangle side are proportional

3x/7=7.5/5

3x=7.5/5 ×1/7=7.5/35

I need help on this question.

Answers

The correct answer is C.

ALGEBRICAL EXPRESSIONS
SIMPLIFY

(7x+8y)² - (7x-8y)²

Answers

Step-by-step explanation:

hope it helps you

mark me as brainliest

1 point
What is the center and radius of a circle with equation (x-4)2 + (y - 2)2 = 4

Answers

Step-by-step explanation:

Find the Center and Radius (x-4)^2+y^2=4

(

x

4

)

2

+

y

2

=

4

This is the form of a circle. Use this form to determine the center and radius of the circle.

(

x

h

)

2

+

(

y

k

)

2

=

r

2

Match the values in this circle to those of the standard form. The variable

r

represents the radius of the circle,

h

represents the x-offset from the origin, and

k

represents the y-offset from origin.

r

=

2

h

=

4

k

=

0

The center of the circle is found at

(

h

,

k

)

.

Center:

(

4

A line passes through the point (-6,2) and has a slope of -4/3

Write an equation in point-slope form for this line.

Answers

Answer:

Step-by-step explanation:

A repairman leans the top of an 26 foot ladder against the
top of a stone wall. The base of the ladder is 4.7 feet from
the wall. How tall is the wall? (Use Pythagorean Theorem:
a² + b2= c2)

Answers

Answer:

26.42139285

Step-by-step explanation:

26x26 + 4.7x4.7 = c2

676 + 22.9 =c2

698.09=c2

square root of 698.09=26.42139285

26.42139285 = c

Can someone pleaseeee help and if you’re correct I’ll give u brainliest

Answers

Answer:

The answer is b

Step-by-step explanation:

Item 5
Find the area of the circle. Round your answer to the nearest hundredth.



area: about
cm2

Answers

Here’s the link to the answe

:510 around th e cme3 cthulhu.com

14. Two line segments are congruent if they have........... length.

Answers

The same length, if something is congruent it means they’re the same

Cuide
A student made a scale drawing of a large block C that will be painted on the wall of the locker room.
10
9
8
7
6
5
4
3
2
1
E
Key
= 0.5 feet
0
1 2 3 4 5 6 7 8 9 10
What is the area, in square feet, of the actual painted C?
12.5
15.5
25
50

Answers

Answer:

Step-by-step explanation:

the wall is 10 by 10    and a block C is painted on it  

I used 22 squares to draw a square - ish block C as large as I could and I

l left a 'frame'  of unpainted blocks around C

                         9 by 8  block C   on a    10 by 10  wall

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

Δ                                    

Δ           

Δ                  THIS IS A TOTAL GUESS     I really need more informaiton

Δ

Δ

Δ                                                    

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

please help and thank you ​

Answers

I believe 2 dollars and 50 cents

Answer:

0.40 cents per apple

Step-by-step explanation:

$1.59 divided by 4= 9.3975= 0.40 (to the nearest hundredth)

Expand and simplity-(x-5)-(2x+7)

Answers

Answer:

-3x - 2

Step-by-step explanation:

-(x - 5) ⇒ -x + 5

-(2x + 7) ⇒ -2x - 7

-x + 5 - 2x - 7 ⇒ -3x - 2

multiply by sign:-x+5-2x-7

collect like term:-x-2x+5-7

simplify:-3x-2

so finally the answer is -3x-2

Please answer!!! I’ll make brainliest

Answers

Answer:

x = 6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let the third side be x , then

x² + 8² = 10²

x² + 64 = 100 ( subtract 64 from both sides )

x² = 36 ( take the square root of both sides )

x = [tex]\sqrt{36}[/tex] = 6

Answer:

6

Step-by-step explanation

Ordered triples only apply to right triangles

3,4,5 is an ordered triple

multiply (3,4,5) by 2 and you get (6,8,10)

the 2 other side lengths are 8 and the hypotenuse is 10 then the other side length is 6.

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

That is just a way to do it quickly and it does not always apply.

the formula for Pythagorean and theorem is a^2+b^2=c^2

a=leg of the triangle

b=other leg of teh triangle

c=hypotenuse(longest leg)

as we can see here 10 is the longest so it is the hypotenuse.

So then we can assume that 8 is a leg of the triangle

so we insert that into the equation

a^2+8^2=10^2

subtract 8^2 from both sides

a^2=10^2-8^2

a^2=100-64

a^2=36

square root both sides

a=√(36)

a=6

Hope that helps :)

Please, somebody, solve this quick and reply with step by step explanation AND provide all steps of working!
If these will be there then I will mark them as BRAINLIEST!

Answers

Answer:

For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:

A = (1/2)*H*(X + Y)

with this we can complete the table.

a)

Here we know:

X = 7cm

Y = 11cm

H = 6cm

Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2

b)

Here we know:

X = 8 m

Y = 10 m

A = 126 m^2

Then:

126 m^2 = 0.5*H*(8m + 10m)

126 m^2 = H*9m

126 m^2/9m = H = 14m

Then the height of this trapezoid is 14m

c)

Here we know:

X = 5mm

H = 8mm

A = 72 mm^2

Then:

72 mm^2 = 0.5*8mm*(5mm + Y)

72 mm^2 = 4mm*(5mm + Y)

72mm^2/4mm = 5mm + Y

18 mm = 5mm + Y

18mm - 5mm = Y

13 mm = Y

Then the parallel side 2 is 13 mm long.

Explain why this quadrilateral is not a parallelogram.

Answers

Answer:

opposite sides aren't equal

Answer: For a quadrilateral to be considered a parallelogram all opposite sides must be equal, however the shape shown in the image above does not meet this condition as all sides are a different size.

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