Find the missing side length… please help

Answer:

21/4

Step-by-step explanation:

1/2[-8 +16 - ( -2 1/2)] = 1/2 ( - 8 + 16 +  2 1/2) = 1/2 ( 8 + 2 1/2) = 1/2 * [tex]10 \frac{1}{2}[/tex] = 1/2 * 21/2 = 21/4

Answer:

[tex]x = 3.875[/tex]

[tex]y = 2.375[/tex]

Step-by-step explanation:

See comment for complete question.

Given

A.

[tex]x + 3y = 11 => x + 3y = 11[/tex]

[tex]5x - y = 17 => 15x - 3y = 51[/tex]

[tex]16x = 62[/tex]

B.

[tex]x + 3y = 11[/tex]

[tex]16x = 62[/tex]

Required

Determine the values of x and y

The first equation in B is:

[tex]x + 3y = 11[/tex]

In (a): 5x - y = 17 is multiplied by 3, then added to x + 3y = 11.

So, the second equation is:

[tex]5x - y = 17[/tex]

Solving (a) & (b):

[tex]x + 3y = 11[/tex]  --- (1)

[tex]5x - y = 17[/tex] ---- (2)

Make x the subject in (1)

[tex]x + 3y = 11[/tex]

[tex]x = 11 - 3y[/tex]

Substitute [tex]11 - 3y[/tex] for x in [tex]5x - y = 17[/tex]

[tex]5(11 - 3y) - y = 17[/tex]

Open bracket

[tex]55 - 15y - y = 17[/tex]

[tex]55 - 16y = 17[/tex]

Collect Like Terms

[tex]- 16y = 17-55[/tex]

[tex]- 16y = -38[/tex]

Solve for y

[tex]y = \frac{-38}{-16}[/tex]

[tex]y = \frac{38}{16}[/tex]

[tex]y = 2.375[/tex]

Substitute 2.375 for y in [tex]x = 11 - 3y[/tex]

[tex]x = 11 - 3 * 2.375[/tex]

[tex]x = 11 - 7.125[/tex]

[tex]x = 3.875[/tex]

Answer:

(4,3)

Step-by-step explanation:

I took the test.

Answer:

Mr.poop was a very wise man he poop in the toilet and in the carpet he didn't know who he was but he was a very very wise man.

Answer:

13 1/2 is your answer.

Step-by-step explanation:

With the same ratio the time taken Mitch to mow 9 lawns will be 13 + 1/2 thus option (D) is correct.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given,

Saul can cut 4 lawns in 6 hours.

The ratio of hours to lawns will be as,

6/4

Suppose the time taken to mow 9 lawns to Mitch is x hours.

The ratio of hours to lawns will be as

x/9

Since the rate is the same thus ratio must be the same.

x/9 =  6/4

x = 6/4 x 9

x = 13.5 = 13 + 1/2

Hence"With the same ratio, the time taken Mitch to mow 9 lawns will be 13 + 1/2".

For more information about ratios and proportions,

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Answer:

y = (-3/7)x + 2

Step-by-step explanation:

slope-intercept form is y = mx + b, where m = slope and b = y-intercept.

all you need to do is plug the values into the equation! :)

since your slope is (-3/7), plug that in for m.

y = mx + b ⇒ y = (-3/7)x + b

and since your y-intercept is 2, plug that in for b.

y = (-3/7)x + b ⇒ y = (-3/7)x + 2

therefore, the line's equation in slope-intercept form is y = (-3/7)x + 2.

don't worry about the parentheses, i only put them in there to separate the 7 in -3/7 from x. i'm not good at putting equations in here on brainly lol i just wanted to make sure you didn't think that it was -3 over 7x.

i hope this helps! have a lovely day <3

Answer:

31 is the answer of this question

Answer:

31 and my day was good how was yours?

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

i don't know its ans thank you

Answer:

x є ø

Step-by-step explanation:

480/X - 8 - 480/x = 3, x є ø

-8=3 (+480/x -480/x cancels because +smth -the same number)

Answer:

I would say approximately 5.8 miles

Step-by-step explanation:

(This answer may be wrong)

Answer:

The function which represents the graph is:

[tex]y=-\left(x\:-\:2\right)^2+\:3[/tex]

Hence, option  B is correct.

The graph is also attached.

Step-by-step explanation:

From the graph, it is clear that:

The vertex = (2, 3)

The y-intercept = (0, -1)

Let us check the equation

[tex]y=-\left(x\:-\:2\right)^2+\:3[/tex]

Determining the y-intercept:

The value of the y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

substituting x = 0 in teh equation

[tex]y=-\left(x\:-\:2\right)^2+\:3[/tex]

[tex]y=-\left(0\:-\:2\right)^2+\:3[/tex]

[tex]y=-2^2+3[/tex]

[tex]y=-4+3[/tex]

[tex]y=-1[/tex]

Thus,

The point representing the y-intercept is:  (0, -1)

Determining the vertex:

The vertex of an up-down facing parabola of the form ax² + bx + c is:

[tex]x_v=-\frac{b}{2a}[/tex]

As the equation is

[tex]y=-\left(x\:-\:2\right)^2+\:3[/tex]

Rewriting the equation [tex]y=-\left(x\:-\:2\right)^2+\:3[/tex] in the form ax² + bx + c:

[tex]y=-x^2+4x-1[/tex]

The Parabola params are:

[tex]a=-1,\:b=4,\:c=-1[/tex]

Thus,

[tex]x_v=-\frac{b}{2a}[/tex]

[tex]x_v=-\frac{4}{2\left(-1\right)}[/tex]

[tex]x_v=2[/tex]

Now plug in [tex]x_v=2[/tex] in the equation to find [tex]y_v[/tex]

[tex]y_v=-x^2+4x-1[/tex]

[tex]\:y_v=-\left(2\right)^2+4\left(2\right)-1[/tex]

[tex]y_v=-4+8-1[/tex]

[tex]y_v=3[/tex]

Therefore, the vertex of the equation is:  (2, 3)

Hence, the function which represents the graph is:

[tex]y=-\left(x\:-\:2\right)^2+\:3[/tex]

Hence, option  B is correct.

The graph is also attached.

Answer: 14:35 hrs

Step-by-step explanation:

Missing time that Ron left was 07:00 hrs  

Ron left the house at 07:00 hrs. If he arrived back to the house 7 hours and 35 minutes later, you can find out what time he arrived by simply adding the time he left to the time he stayed outside:

= 7 + 7hrs 35 minutes

= 14 hrs 35 minutes

= 14:35 hrs

Answer:

Step-by-step explanation:

56

Answer:

slope = [tex]\frac{2}{5}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = [tex]\frac{2}{5}[/tex] x - 4 ← is in slope- intercept form

with slope m = [tex]\frac{2}{5}[/tex]

Parallel lines have equal slopes

Thus the slope of a parallel line is m = [tex]\frac{2}{5}[/tex]

Answer:

x=10.2-2(×+5)........ given

×=20-2×-10............... avoid the bracket

x=10-2×..............collect the like terms

x+2x=10-2×+2×...... add 2x from both side

3x=10................simplify

3x/3=10/3..........divide both side by 3

x= 3.333.............x is solved

Step-by-step explanation:

i hope it is help full

Answer:

She needs 3 purple rectangles.

Step-by-step explanation:

If Olivia is making 3 scarves and each scarf will be a combination of 3 rectangles, out of the three rectangles, there will be purple meaning a scarf will have at least a purple rectangle.

If a scarf has a purple rectangle then 3 scarves will have;

1 x 3 = 3

3 rectangles.

展开时的公式:

+ + > +

- - > +

+ - > -

- + > -

Answer:

either 5 or 6 months

Step-by-step explanation:

Tom   M    Jerry

500    1     125

475     2   175

450     3    225

425     4    275

400     5    325

375     6    375

Answer:

94.5

Step-by-step explanation:

3x3.5x9=94.5

Hope this helps :)

Also please mark as branliest

Answer:

Step-by-step explanation:

Z. 1/25 it’s just a guess theough

Answer:

the factor is x=1/2 or x=1

Step-by-step explanation:

hoped I helped:)

Answer:

x y x

Step-by-step explanation:

Answer: 13.1

Step-by-step explanation:

hope this helps

Answer:

88 total questions

Step-by-step explanation:

Answer:

88 problems

Step-by-step explanation:

86/0.98 = 87.76 ≈ 88

Answer:

44.22

Step-by-step explanation:

100%-> 66

60%->39.60=

7%->4.62

4.62+39.60=44.22

Answer:

when you have something like f(x)=... that means

f means function

and every time you see an x or the variable in the parenthesis you plug in for that so it's f(x) =3x+1 then f(2)= 3x+1 every time you see x you plug in 2

Answer:

28% = 7/25 and 158% = 79/50

Step-by-step explanation:

To convert a percent into a fraction, you have to put the value of the percent over 100.

For 28%: 28/100

28 and 100 are both divisible by 4, so the fraction reduces to 7/25.

For 158%: 158/100

158 and 100 are both divisible by 2, so the fraction reduces to 79/50.  If you teacher doesn't want you do use improper fractions, then 79/50 can further be reduced and becomes [tex]1\frac{29}{50}[/tex].

Hope this helped!

Answer:

200.96 units^2

Step-by-step explanation:

50.24/Pi = 16 (diameter)

16/2=8 (radius)

area = Pi(r^2)

area = 3.14(8^2) = 200.96 units^2

Answer:

4-3a

Step-by-step explanation:

combine like terms

hope this helps :)