If x = 7, find the value of
a) x2
b) (x + 3)*2

Answers

Answer 1

Answer:

a) 49

b) 100 (I'm assuming that the 2 was supposed to be a square)

Step-by-step explanation:

Substitute the value in for x (the value being 7):

7² = 49

(7 + 3)² = (10)² = 100


Related Questions

Ms. Salgado needs to have her car repaired but does not want to spend more than $375 for the repairs. The mechanic says that the part needed for the repair will cost $100 and the labor will cost an additional $40 per hour. Which inequality below represents the greatest number of hours the mechanic can work without exceeding Ms. Salgado's budget?

Answers

Answer:

The mechanic will need to finish in 4 hours.

Step-by-step explanation:

100+40=140

40+40=80

40+40=80

40

140 +80 + 80+ 40= 340

pls someone help me find the answers

Answers

Answer:

x = 145°

Step-by-step explanation:

We know that y = 98°, so we can find ∠DBC:

180°-y = ∠DBC

180°-98° = 82°

We also know that z = 63°, therefore we can apply exterior angle of triangles to find x.

∠DBC + z = x

82°+63° = x

x = 145°

Tenzing sold two watches at rs1200 andrs1350 respectively if he gained 20 percent on the first and 2percent on the whole what percent did he loss in second watch

Answers

9514 1404 393

Answer:

  10% loss

Step-by-step explanation:

If Tenzing sold the first watch at 20% profit, his cost c can be found from ...

  1200 = 1.20c

  1000 = c

If Tenzing sold both watches together for 1200 +1350 = 2550, then his total cost can be found from ...

  2550 = 1.02t

  t = 2550/1.02 = 2500

Then his cost for the second watch was ...

  2500 -1000 = 1500

The sale price of 1350 for that watch represents a multiplier m on the watch cost of ...

  1500m = 1350

  m = 1350/1500 = 0.90 = 1 - 0.10

Tenzing lost 10% of its cost on the second watch.

a rectangle has a lenght of 8cm. its area is 72 cm squared. calculate the perimeter of the rectangle​

Answers

answer is 576 is your answer

sharice is putting jars of jam into boxes. she puts 8 jars into each box, and she has a total of 144 jars. sharice wants to know how many boxes she needs. let be be the number of boxes sharice needs write a multiplication equation to describe the situation. You gave me his answer but it his blanked out I can not see it

Answers

Answer:

Equation: 8b=144

Step-by-step explanation:

I am doing the i-ready

the answer is below  

                                     

Find the area of a square

Answers

Answer:

Step-by-step explanation:

area =l^2

=7^2

=49 km^2

Can you help me solve this question

Answers

C is the answer I think

I need & answer ASAP due in 10 minutes :,)
Pls and thank you but make sure to include a explanation & No Links pls & thxs again

Answers

Answer:

84 m³

Step-by-step explanation:

Area of base: 1/2 × 6 × 4= 1/2 ×24 = 12

Volume: area of base × height = 12 × 7= 84 m³

..... please help me I don't understand this

Answers

Answer:

i think the 2nd one is correct .. i have not fluent in english to explain the answer.

Solve the inequality: −34 < −2(4x − 1)

Answers

[tex] - 34 < - 2(4x - 1) \\ - 34 < - 8x + 2 \\ - 34 - 2 < - 8x \\ - 36 < - 8x \\ 36 > 8x \\ \frac{36}{8} > x \\ x < \frac{9}{2} [/tex]

radio station KLUV broadcasts in all directions to a distance of 50 mi. How many square miles are in the stations broadcast area?

Answers

Answer:

7850 mi

Step-by-step explanation:

Area of a circle is:

A = (pi)r²

A = (3.14) (50²)

A = (3.14) (2500)

A = 7850 square miles

There are seven quarters in the bottom of a tote bag. Three of those quarters were minted in 2019, two were minted in 2001, and two were minted in 2008. What is the probability of selecting two quarters that were both minted in years other than 2019 if the first was not replaced before the second was selected?

Answers

Answer:

[tex]P(Not\ 2019) = \frac{2}{7}[/tex]

Step-by-step explanation:

Given

[tex]n(2019)= 3[/tex]

[tex]n(2001)= 2\\[/tex]

[tex]n(2008)= 2[/tex]

[tex]n = 7[/tex] --- total

Required

[tex]P(Not\ 2019)[/tex]

When two quarters not minted in 2019 are selected, the sample space is:

[tex]S = \{(2001,2001),(2001,2008),(2008,2001),(2008,2008)\}[/tex]

So, the probability is:

[tex]P(Not\ 2019) = P(2001,2001)\ or\ P(2001,2008)\ or\ P(2008,2001)\ or\ P(2008,2008)[/tex]

[tex]P(Not\ 2019) = P(2001,2001) + P(2001,2008) + P(2008,2001) + P(2008,2008)[/tex]

[tex]P(2001,2001) = P(2001) * P(2001)[/tex]

Since it is a selection without replacement, we have:

[tex]P(2001,2001) = \frac{n(2001)}{n} * \frac{n(2001)-1}{n - 1}[/tex]

[tex]P(2001,2001) = \frac{2}{7} * \frac{2-1}{7 - 1}[/tex]

[tex]P(2001,2001) = \frac{2}{7} * \frac{1}{6}[/tex]

[tex]P(2001,2001) = \frac{1}{7} * \frac{1}{3}[/tex]

[tex]P(2001,2001) = \frac{1}{21}[/tex]

[tex]P(2001,2008) = P(2001) * P(2008)[/tex]

Since it is a selection without replacement, we have:

[tex]P(2001,2008) = \frac{n(2001)}{n} * \frac{n(2008)}{n - 1}[/tex]

[tex]P(2001,2008) = \frac{2}{7} * \frac{2}{7 - 1}[/tex]

[tex]P(2001,2008) = \frac{2}{7} * \frac{2}{6}[/tex]

[tex]P(2001,2008) = \frac{2}{7} * \frac{1}{3}[/tex]

[tex]P(2001,2008) = \frac{2}{21}[/tex]

[tex]P(2008,2001) = P(2008) * P(2001)[/tex]

Since it is a selection without replacement, we have:

[tex]P(2008,2001) = \frac{n(2008)}{n} * \frac{n(2001)}{n - 1}[/tex]

[tex]P(2008,2001) = \frac{2}{7} * \frac{2}{7 - 1}[/tex]

[tex]P(2008,2001) = \frac{2}{7} * \frac{2}{6}[/tex]

[tex]P(2008,2001) = \frac{2}{7} * \frac{1}{3}[/tex]

[tex]P(2008,2001) = \frac{2}{21}[/tex]

[tex]P(2008,2008) = P(2008) * P(2008)[/tex]

Since it is a selection without replacement, we have:

[tex]P(2008,2008) = \frac{n(2008)}{n} * \frac{n(2008)-1}{n - 1}[/tex]

[tex]P(2008,2008) = \frac{2}{7} * \frac{2-1}{7 - 1}[/tex]

[tex]P(2008,2008) = \frac{2}{7} * \frac{1}{6}[/tex]

[tex]P(2008,2008) = \frac{1}{7} * \frac{1}{3}[/tex]

[tex]P(2008,2008) = \frac{1}{21}[/tex]

So:

[tex]P(Not\ 2019) = P(2001,2001) + P(2001,2008) + P(2008,2001) + P(2008,2008)[/tex]

[tex]P(Not\ 2019) = \frac{1}{21} + \frac{2}{21} +\frac{2}{21} +\frac{1}{21}[/tex]

Take LCM

[tex]P(Not\ 2019) = \frac{1+2+2+1}{21}[/tex]

[tex]P(Not\ 2019) = \frac{6}{21}[/tex]

Simplify

[tex]P(Not\ 2019) = \frac{2}{7}[/tex]

What is the term of the highest degree in the expression 3x2y-5xy7+8x4y5-6xy

Answers

Answer:

seems hard

Step-by-step explanation:

YEEEEET IT AWAY

Evaluate the expression (35+ 7) {6 – 5).

Answers

Answer:

The answer is 41

Step-by-step explanation:

(35 + 7) (6 - 5)

(42) × (1) = 41

Thus, The answer is 41

-TheUnknownScientist

The mean of six numbers is 10. When
mother number is added the new mean is
9. Find the number added.​

Answers

Answer:

3

Step-by-step explanation:

If 6 numbers have a mean value of 10, it means that the sum of the numbers divided 6 is equal to 10. This can be expressed as:

x÷6=10

x=60

The new number added will be the 7th number and now the mean is 9. You have to ask what number divided by 7 is equal to 9? This can be expressed as:

y÷7=9

y=63

63-60=3

So the new number added is 3

Answer:

3

Step-by-step explanation:

Mean is calculated as

mean = [tex]\frac{sum}{count}[/tex]

Given the mean of 6 numbers is 10, then

[tex]\frac{sum}{6}[/tex] = 10 ( multiply both sides by 6 )

sum = 60

When another number x is added then count is 7

[tex]\frac{60+x}{7}[/tex] = 9 ( multiply both sides by 7 )

60 + x = 63 ( subtract 60 from both sides )

x = 3 ← the number added

someone, please help me with this, if you can explain it fully that'll be great. I have been sick and missed all the classes and idek the name of this topic
send help
thank you in advance

Answers

Step-by-step explanation:

i don't know how to do 1b and 2a hope these two helps :))

Austen needs to buy a bathroom mirror that is 2 feet wide and 3 feet long. If the mirror
sells for $5.00 per square foot, what will the total cost of the mirror be?

Answers

Question :-

Austen needs to buy a bathroom mirror that is 2 feet wide and 3 feet long. If the mirror sells for $5.00 per square foot, what will the total cost of the mirror be?

____________________

Solution :-

Given Information :-

Length of the mirror Austen needs to buy ➢ 3 ftWidth of the mirror Austen needs to buy ➢ 2 ftCost of mirror per square foot ➢ $5.00

To Find :-

Total cost of the mirror Austen needs to buy.

Formula Used :-

Area of Mirror = Length × Width Total cost of mirror = Area of mirror × Cost of mirror per square foot

Calculation :-

Area of mirror :-

Substituting the values given in the 1st formula, We get,

⇒ Area of mirror = ( 3 × 2 ) ft²

Area of mirror = 6 ft²

Now finding the total cost of mirror,

Substituting the values calculated above in the 2nd formula, We get

⇒ Total Cost of mirror = $ ( 6 × 5.00 )

Total Cost of mirror = $30

___________________

Final Answer :-

Total cost of the mirror Austen needs to buy will be $30

____________________

Please help!! Will give brainliest

Answers

Answer:

I think its the second answer chose

Step-by-step explanation:

I hope this helps! Have a nice day! Owa Owa!

ANSWER ASAP!!
A flagpole casts a shadow that is 50 feet long. At the same time, a woman standing nearby who is 5 feet 4 inches tall casts a shadow that is 40 inches long. How tall is the flagpole to the nearest foot

Answers

50 FOOT

Step-by-step explanation:

Order the numbers from least to greatest. 359, 361, 363, 358, 368, 361, 366, 360,
358, 359, 358, 366, 363, 364, 358, 363

Answers

Answer:

358,358,358,359,363,363,364,366

Step-by-step explanation:

If the values of x is 14 what is the value of y The answer is 1.5 ... 3 divided by 2 = 1.5 15 divided by 10 = 1.5 and 14 x 1.5= 21 also to check 21 divided by 14 is 1.5. Hope this helped

Answers

Na, didn't help me at all...

please help!! i really need to answer this so i pass!

Answers

Answer:

450 LITERS

(Answer may not be correct, to solve for the right answer see below)

Step-by-step explanation:

(Convert 450 LITERS to meters to find the answer the question is asking)

1.2 m x 0.5 m x 3/4 m =

1. Convert the 3/4 meters into a decimal, you can use an online calculator for that part

2. 3/4 = ______

______ m x 1.2 m x 0.5 m = (ANSWER)

Need help ASAP! Will give brainliest;) No links please, will report.

The area of a triangle is 55x^3+15x^2-25. The length of the triangle is 5x. What is the width?

Answers

Answer:

The area of a triangle =55x^3+15x^2-25

1/2×length×width=55x^3+15x^2-25

5x/2×width=55x^3+15x^2-25

width=[55x^3+15x^2-25]×2/5x

width=22x²+6x-10/x is your answer

Find the volume of the cylinder.
Either enter an exact answer in terms of IT or use 3.14 for 7.
3
1
*****
units 3

Answers

Answer:

235.5

Step-by-step explanation:

i show the calculation in picture

Find the missing fraction.
___ + 1/16 = 3/2

No links!

Answers

Answer:

23/16

Step-by-step explanation:

3*8/2*8=24/16-1/16=23/16

find the solution of given expression !!

[tex] \sqrt{36 \times 4} [/tex]

Answers

[tex]\huge{ \mathfrak{  \underline{ Answer }\:  \:  ✓ }}[/tex]

Let's Solve :

[tex] \sqrt{36 \times 4} [/tex]

[tex] \sqrt{2 \times 2 \times 3 \times 3 \times 2 \times 2} [/tex]

[tex]2 \times 3 \times 2[/tex]

[tex]12[/tex]

Therefore, the correct answer is 12

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

Which set of measures could represent the length of the sides of a right triangle?
A) 2,3,4 B) 7,11,14 C) 8,10,12 D) 9,12,15

Answers

Answer:

B) 7,11,14

Step-by-step explanation:

correct me if I'm wrong

What is the angle relationship between c and d?
Also what is the relationship between c and f?
(could be Vertical, alternate exterior, alternate interior, corresponding, same-side interior, same-side exterior, or linear pair.)

Answers

Answer:

1. linear pair (c and d)

2. alternate interior angles (c and f)

Step-by-step explanation:

Here, we want to get the relationship between angles

From what we have , we can see that angle d and angle c lie on a straight line

Thus, we have that angle c and angle d are supplementary angles since they will add up to give 180 degrees . So we can call the two a linear pair

For c and f, we can notice a z-like angle between the two

In this case, when we have a z-like angle, the relationship that exists between the two angles is that they are alternate interior angles

An international soccer match takes place on a field with an area of 9,600 yards2. If the length of the field is 120 yards, then what is the width?

Answers

A=L*W 9600=120x 9600/120=80, Width = 80 yards


6. Trapezoid FGHI is similar to trapezoid KLMN. What
is the length of GH?
14 in
N
х
K
H
G
3.5 in)
F
7 in
M
L
11 in
F.8.5 in
G. 7 in
H. 6.75 in
J. 5.5 in

Answers

Answer:

5.5

Step-by-step explanation:

3.5 is 1/2 of 7. GH is similar to ML. Half of ML is 5.5.

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