Solve by factoring. x2 - 49 = 0

Answers

Answer 1

Answer:

x=24.5       2(x + 24.5) = 0

Step-by-step explanation:

x2 - 49 = 0

     +49    +49

x2 = 49

/2       /2

x   = 24.5

2(x + 24.5) = 0


Related Questions

find the area of the shape below, giving your answer to 1 decimal place

Answers

Answer:the answer is 150

Step-by-step explanation:multiply 10 and 15 and you get 150

Answer:

[tex] 189.25 \: {cm}^{2} [/tex]

Step-by-step explanation:

Area of the shape = Area of rectangle + Area of semicircle.

For rectangle:

Length = 15 cm

Width = 10 cm

For semicircle:

Diameter = 10 cm

Radius = 10/2 = 5 cm

Area of the shape

[tex] = lb + \frac{1}{2} \pi {r}^{2} \\ \\ = 15 \times 10 + \frac{1}{2} \times 3.14 \times {(5)}^{2} \\ \\ = 150 + \frac{1}{2} \times 3.14 \times 25 \\ \\ = 150 + 39.25 \\ \\ = 189.25 \: {cm}^{2} [/tex]

I need help quick 16 mins left and I’m on the last question

Answers

Answer:

try 2+2 that should work

What prompted (caused) Gandhi to begin a campaign of passive resistance in South Africa?

Answers

Answer:

Asiatic Registration Bill of 1906.

Step-by-step explanation:

The first passive resistance campaign was started in Johannesburg in 1907 with, and for, the wealthy South African Indian merchants whom he had so long represented.’ Gandhi’s first passive resistance campaign began as a protest against the Asiatic Registration Bill of 1906.

Jawad has seven rocks.

The total weight of all seven rocks is 5kilograms 6 of the rocks each have a weight of 720 grams.

Work out the weight, in grams of the other rock

Answers

680 grams.

So, it's telling us to calculate the weight, in grams, of the other rock.

So firstly,

6 of the rocks EACH have a weight of 720 grams.

So, 6 x 720 = 4320

Now save 4320 for later.

Next, we need to convert the 5 kilograms into grams.

So, 5 x 1000 = 5000

now do, 5000 - 4320 = 680.

Your final answer would then be = 680g

I hope this helped.

Which algebraic expression represents the phrase "seven more than half of a number
0 7-1/2x
0 -7+ 1/2x
o 1/2x + 7
0 -1/2x + 7

Answers

Answer:

1/2x + 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

7 more will be 7+

half of a number, let number be x, that will be x/2

1/2 x+7

If I have an equation in which x = pounds, and y = total cost, can I substitute quarts into the equation

Answers

Answer:

Yes, you can

Step-by-step explanation:

As a point of reference, assume the equation is:

[tex]y = 5x[/tex]

Where

[tex]y = total\ cost[/tex]

and

[tex]x = pounds[/tex]

In standard unit of conversion:

[tex]1\ pound = 0.4793\ quart[/tex]

So:

[tex]x\ pounds = 0.4793x\ quart[/tex]

Substitute 0.4793x for x in [tex]y = 5x[/tex]

[tex]y = 5 * 0.4793x[/tex]

[tex]y = 2.3965x[/tex]

The above equation is the equivalent of [tex]y = 5x[/tex] in quarts

So, irrespective of what the equation is, you can always substitute quarts into the equation.

Whats the Answer? I need help and quick

Answers

Answer:

10

Step-by-step explanation:

table 1 has a total bill of $87.50 and leaves a 15% tip

table 2 has a total bill of $56.30 and leaves a 22% tip

table 3 has a total bill of $74.25 and leaves a 19% tip

determine which table leaves the largest tip and how much money she will make in the tips from the three tables

Answers

Table 3 leaves the largest tip because if you take the amount the bill was and change the percent to a decimal then multiply it gives you how much the tipped.
All together she earned $39.63 for all the tips


The graph of a linear function is shown on the grid.

What is the rate of change of y with respect to x for this function?

Answers

Answer:

Step-by-step explanation:

Rate of change = (2-3.6)/(5-(-3)) = -1.6/8 = 0.2

Can someone help me please

Answers

Answer:

first one is perpendicular

second one is neither

third one is parallel

Step-by-step explanation:

1. Perpendicular
2. Neither
3. Parallel

Helllpppp!!!! i need halp with mafs

Answers

Answer:

Step-by-step explanation:

Vertical line should intersect the graph, which represent function, no more than once.

Answer:

(〃бзб`)(〃бзб`)(〃бзб`)(〃бзб`)(〃бзб`)(〃бзб`)(〃бзб`)

Given f(x) = (4 - x)”, what is the value of f(16)? ​

Answers

Answer:

Step-by-step explanation:

Plug in 16 for x. (4-16) then the answer is -12

The large piston in a hydraulic lift has an area of 2m^2. What force must be applied to the small piston with an area of .2m^2 in order to raise a car that weighs 14,700 Newtons

Answers

Answer:

147,000N

Step-by-step explanation:

A1= 2m^2

A2= 0.2m^2

F2= 14,700N

Required

F1, the applied force

Applying the formula

F1/A1= F2/A2

substute

F1/2=14700/0.2

2*14700= F1*0.2

29400= F1*0.2

F1= 29400/0.2

F1=147,000N

Hence, the applied force is 147,000N

What is the slope of the line that passes
through the points (-3,5) and (9, -1)?

Answers

Answer:

m=-1/2

hope this helps

Answer:

-1/2

Step-by-step explanation:

9+3=12 and -1-5=-6

-6/12=-1/2

Pls answer this! :)

Answers

Answer:

11 in

Step-by-step explanation:

1 in=270 ft

2970/270=11

Ayla has 104 stuffed animals in her room. The ratio of teddy bears to cats is 5 to 3. How many teddy bears does she have?

Answers

Answer:

65 teddy bears

Step-by-step explanation:

Total stuffed animal = 104

Teddy bear : cats = 5 : 3

Total parts = 5+3 = 8

Number of teddy bears = [tex]\frac{5}{8}*104[/tex]

                                       = 5 * 13

                                      = 65

Answer:

she has 65 teddy bears

Step-by-step explanation:

if she has 104 stuffed animals and the ratio is 5/3 then to get the awnser you need 5/8

5/8*104

you get 65

Vanessa tried to solve an equation step by step.−12=4(f-6)

Step 1. -12=4f−24
Step 2. 12=4f
Step 3. 4=f
Find Vanessa's mistake.

Answers

It step 3 I got The same question on khan academy

Please answer this :):(:)

Answers

Answer:

the answer would be 3/40

Answer:

3/40

Step-by-step explanation:

Scale factor = 9/10*12 = 3/40

Will Give Brainliest

Last week Jim’s gross pay was $1,248 working 40 regular hours and 8 overtime hrs at double pay.

What was Jim's regular hourly rate?

Answers

Answer: 24


Explanation:

Total pay = gross pay + overtime pay

= 40x + 12x

= 52x

The total pay is 1,248
So

5x = 1,248

X = 1,248/52

X = 24

(Divide each side by 52)

Plz I need help asap i only have 10 mins to answer this.PS-dont tell me yo look it up cuz its not there.

Answers

Answer:

A skateboarder travels down 2 meters a second

Step-by-step explanation:

The slope is 4 / 2 = 2

5 star, thank, and brainliest if helpful!

6th grade math please help!
The sum of three numbers in order is 57. The equation that represents this is x + (x + 1) + (x + 2) = 57. Which value of x from the set {16, 17, 18, 19} makes the equation true?
a.16
b.17
c.18
d.19

Answers

The answer is c that is the answer

helppppppp me plsss fast due at 7

Answers

Answer:2y+7x

5y−7x

 

=−5

=12

We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:

\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}

2y+7x

+ 5y−7x

7y+0

 

=−5

=12

=7

Solving for yyy, we get:

\begin{aligned} 7y+0 &=7\\\\ 7y &=7\\\\ y &=\goldD{1} \end{aligned}

7y+0

7y

y

 

=7

=7

=1

Plugging this value back into our first equation, we solve for the other variable:

\begin{aligned} 2y+7x &= -5\\\\ 2\cdot \goldD{1}+7x &= -5\\\\ 2+7x&=-5\\\\ 7x&=-7\\\\ x&=\blueD{-1} \end{aligned}

2y+7x

2⋅1+7x

2+7x

7x

x

 

=−5

=−5

=−5

=−7

=−1

The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.

We can check our solution by plugging these values back into the original equations. Let's try the second equation:

\begin{aligned} 5y-7x &= 12\\\\ 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12\\\\ 5+7 &= 12 \end{aligned}

5y−7x

5⋅1−7(−1)

5+7

 

=12

=

?

12

=12

Step-by-step explanation:

Help me pleaseeeee somebody ASAP

Answers

Answer:

x = 12

Step-by-step explanation:

In similarity triangles angles are congruent.

∠D = ∠A

x² - 8x = 48

x² - 8x  - 48 = 0

x² + 4x  - 12x - 48 = 0

x(x + 4) - 12(x + 4) = 0

(x +4)(x - 12) = 0

x - 12 = 0     {Ignore x + 4 = 0, as measurements won't have negative values}

x = 12

8,637
Number
Nearest ten

Answers

Answer:

8, 640

Step-by-step explanation:

It just is :) hope it helps

PLEASE ANSWER THIS IS URGENT PLEASE

Answers

Answer:

Step-by-step explanation:the answer to your question is 3/28

Answer:

3/28 or [tex]\frac{3}{28}[/tex]

Step-by-step explanation:

[tex]\frac{2}7}[/tex]÷[tex]\frac{8}{3}[/tex]

to divide fractions, flip the second one and multiply them.

[tex]\frac{2}{7}*\frac{3}{8}[/tex]

2 * 3 = 6

7 * 8 = 56

[tex]\frac{6}{56}[/tex]

simplify by dividing both sides by 2

[tex]\frac{3}{28}[/tex]

Find the coordinates of the other endpoint of the segment, given its midpoint and one endpoint. (Hint: Let (x,y) be the unknown endpoint. Apply the midpoint
formula, and solve the two equations for x and y.)
midpoint (-2, -16), endpoint (-7.-9)

Answers

Given:

One endpoint of a line segment = (-7,-9)

Midpoint of the segment = (-2,-16)

To find:

The other endpoint of the given line segment.

Solution:

Let (a,b) be the other endpoint of the given line segment.

Midpoint formula:

[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]

Using this formula, we get

[tex](-2,-16)=\left(\dfrac{-7+a}{2},\dfrac{-9+b}{2}\right)[/tex]

On comparing both sides, we get

[tex]\dfrac{-7+a}{2}=-2[/tex]

[tex]-7+a=-4[/tex]

[tex]a=-4+7[/tex]

[tex]a=3[/tex]

And,

[tex]\dfrac{-9+b}{2}=-16[/tex]

[tex]-9+b=-32[/tex]

[tex]b=-32+9[/tex]

[tex]b=-23[/tex]

Therefore, the coordinates of other endpoint are (3,-23).

determine the value of w ​

Answers

Answer:

suppose

x+122=180

x=180-122

x=58

then

x+w+33=180

58+w+33=180

w=180-91

w=89

what is -2(3x^2-7x+4)+(x+1)(x-7)

Answers

Answer:

−5^2x2+8x−15

Step-by-step explanation:

Hope it helps!

Chang Knows one side of a triangle is 13cm. Which set of two sides is possible for the lengths of the other two sides of this triangle?
5cm and 8cm
6cm and 7cm
7cm and 2cm
8cm and 9cm​

Answers

Answer:

Option D: 8cm and 9cm. Is your answer.

Answer:

8 cm and 9 cm

Step-by-step explanation:

the two shorter sides must equal more than the longest side.

need the answer asap!!!!! 63 points!!!!

Answers

Answer:

A

Step-by-step explanation:

Answer:

Step-by-step explanation:

g(x) = f(x +4) = 10^x+4

So the graph of the function g is the graph of function 4 units to the right

B is the answer

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