Someone help me please

Answer:

6

Step-by-step explanation:

Important info given:

Step 1: We need to determine the length of side A.

Since, these two triangles are similar, let us use the property of similarity of triangles to determine the length of side A.

Therefore we have:

[tex]\frac{8}{4} = \frac{a}{3}[/tex]

Step 2: Multiplying by 3, and then we have:

[tex]\frac{8*3}{4}=a[/tex]

[tex]\frac{24}{4}=a[/tex]

Step 3: Simplify, and we get:

6 = a

Hence, the length of side A is 6 cm.

[RevyBreeze]

Answer:

$423,846

Step-by-step explanation:

12x$18,492=221,904

9x22,438=201,942

221,904+201,942=423,846

hope this helps

Answer:

6. yes they are congruent, they are exactly the same shape and size

7. no they are not congruent, they are different sizes

8. they are congruent, they have the same shape and size

Step-by-step explanation:

Answer:

perimeter of triangle=sum of all three sides

Step-by-step explanation:

[tex]( {2y}^{2} - {2x}^{2} ) + ( {y}^{2} - {x}^{2} + 11 ) \\ + ( {5x}^{2} - {2y}^{2} - 12)[/tex]

[tex] {2y}^{2} + {y}^{2} - {2y}^{2} + {5x}^{2} - {x}^{2} - {2x}^{2} + 11 - 12[/tex]

[tex] {y}^{2} + {2x}^{2} - 1[/tex]

Answer:

A

Step-by-step explanation:

[tex]\frac{10}{9+\sqrt{7} }[/tex]

To rationalise the denominator multiply the numerator and denominator by the conjugate of the denominator.

the conjugate of 9 + [tex]\sqrt{7}[/tex] is 9 - [tex]\sqrt{7}[/tex]

= [tex]\frac{10(9-\sqrt{7}) }{(9+\sqrt{7})(9-\sqrt{7}) }[/tex] ← expand denominator using FOIL

= [tex]\frac{90-10\sqrt{7} }{81-7}[/tex]

= [tex]\frac{90-10\sqrt{7} }{74}[/tex] ( divide terms on numerator/ denominator by 2 )

= [tex]\frac{45-5\sqrt{7} }{37}[/tex] → A

Answer:

A[tex]\frac{45-5\sqrt7}{37}[/tex]

Step-by-step explanation:

Easy. First let's multiply numerator and denominator by [tex]9-\sqrt7[/tex] since we will create a difference of squares to get rid of the root, then start doing the calculations

[tex]\frac{10(9-\sqrt7)}{(9+sqrt7)(9-\sqrt7)}=\frac{10(9-\sqrt7)}{81-7} = \frac{10(9-\sqrt7)}{74} =\\\frac{5(9-\sqrt7)}{37}=\frac{45-5\sqrt7}{37}[/tex]

Answer:

2x[tex]x^{2}[/tex]-8x+2

Step-by-step explanation:

Answer:

C/8

Step-by-step explanation:

Because the range is the biggest number subtracted by the lowest number and in our data sat 7,15,and 12 15 is the biggest number and 7 is the smallest so what's 15-7?

8 so C

Have a great day.

Answer:

8 -1= 7

Step-by-step explanation:

find the largest number and subtract from the smallest number.

Answer:

[tex]8 - 1 = 7[/tex]

Step-by-step explanation:

that will be my answer

Answer:

y= 3x+14

Step-by-step explanation:

3x because the slope is 3

14; solve for B by plugging in x=-4, y=-2 into y=3x+B

1/4 is the gradient.

gradient => (2-3)/(4-8)

gradient => -1/(-4)

gradient => 1/4

Answer:

x= 1

if thats not what u trien find lmk and ill fix it n give correct answer

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

Rectangle J and Rectangle K are similar

You can divide 13 by 3.25

13/3.25=4

If Rectangle J is 4 times bigger than K all you have to do is devide 104 by 4 and you get 26

Answer:

5+5+8+8=26

the perimeter of a 5ft by 8ft rectangle is 26ft

Step-by-step explanation:

Hope this helps!!!

-Liyah

Answer:

26ft

Step-by-step explanation:

The formula for the perimeter of a rectangle is P= 2w + 2l

w= 5ft and l= 8ft

so P= 2 x 5 + 2 x 8

= 26ft

=======================================================

Explanation

Part (a)

The smaller pyramid up top is the result of slicing at the halfway point.

This leads to the ratio 1:2 when comparing small side to larger side.

Cube both parts of that ratio to end up with 1:8 as the volume ratio.

This means if the smaller pyramid was say 1 cubic foot in volume, then the larger pyramid has a volume of 8 cubic feet.

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

Part (b)

Consider the case that,

The volume of the truncated base is 8-1 = 7 cubic feet.

The ratio of the smaller pyramid to the truncated base is 1:7

Answer:

In Euclidean plane geometry, a tangent line to a circle is a line that touches the circle at exactly one point, never entering the circle's interior. Tangent lines to circles form the subject of several theorems, and play an important role in many geometrical constructions and proofs.

Step-by-step explanation:

smarts.

hope this helps :))

Answer:

it takes 10 ones to make a ten.

Hey there!

ORIGINAL EQUATION

|5x - 4| = 11

~~~~~~~~~~~~~~~~~~~~
Possible EQUATION #1

5x - 4 = 11

ADD 4 to BOTH SIDES

5x - 4 + 4 = 11 + 4

CANCEL out: -4 + 4 because it gives you 0

KEEP: 11 + 4 because it help solve for the x-value

NEW EQUATION: 5x = 11 + 4

SIMPLIFY IT!

5x = 15

DIVIDE 5 to BOTH SIDES

5x/5 = 15/5

CANCEL out: 5/5 because it gives you 1

KEEP: 15/5 because it help solve for the x-value

NEW EQUATION: x = 15/5

SIMPLIFY IT!

x = 3

~~~~~~~~~~~~~~~~~~~~
Possible EQUATION #2

5x - 4 = -11

ADD 4 to BOTH SIDES

5x - 4 + 4 = -11 + 4

CANCEL out: -4 + 4 because it gives you 0

KEEP. -11 + 4 because it help solve for the x-value

NEW EQUATION: 5x = -11 + 4

SIMPLIFY IT!

5x = -7

DIVIDE 5 to BOTH SIDES

5x/5 = -7/5

CANCEL out: 5/5 because it gives you 1

KEEP: -7/5 because it help solve for the x-value

NEW EQUATION: x = -7/5

SIMPLIFY IT!

x = -7/5

~~~~~~~~~~~~~~~~~~~~~~~

ANSWER

x = 3 or x = -7/5

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

8(5x+3)

Step-by-step explanation:

C. Yes, at negative and positive x‐coordinates or zero

I believe it is this

Answer: b Yes ,at negative x coordinates or zero

Step-by-step explanation:

we can see through the values that the graph will graph on the negative x coordinate or zero

Answer:

w=120°

x=45°

y=30°

Step-by-step explanation:

AT=PR, AR=PT

Therefore, y=30°

y+45°=x+30°

x=45°

In triangle:

y+30°+w=180°

w=120°

Hope it helps! :)

Answer:

1

Step-by-step explanation:

Using proportions, it is found that 8 more seventh graders are involved in the yearbook.

A proportion is a fraction of a total amount.

Researching the problem on the internet, it is found that 10% of the 6th graders and 18% of the 7th graders are on the yearbook, hence:

0.1 x 280 = 28 6th graders.

0.18 x 200 = 36 7th graders.

36 - 28 = 8

8 more seventh graders are involved in the yearbook.

More can be learned about proportions at https://brainly.com/question/24372153

Total:-

[tex]\\ \tt\hookrightarrow 3\dfrac{3}{4}+5[/tex]

[tex]\\ \tt\hookrightarrow \dfrac{15}{4}+5[/tex]

[tex]\\ \tt\hookrightarrow \dfrac{15+20}{4}[/tex]

[tex]\\ \tt\hookrightarrow 35/4[/tex]

[tex]\\ \tt\hookrightarrow 8\dfrac{3}{4}gallons[/tex]

[tex]\large{|\underline{\mathtt{\red{G}\blue{i}\orange{v}\pink{e}\blue{n}\purple{}\green{}\red{↯}\blue{}\orange{}}}}[/tex]

1 bucket contains 3 3/4 gallons of water

[tex]\large{|\underline{\mathtt{\red{T}\blue{o}\orange{\:}\pink{F}\blue{i}\purple{n}\green{d}\red{↯}\blue{}\orange{}}}}[/tex]

Total amount of water after adding 5 gallons to it =?

[tex]\large\underline{\underline{\maltese{\purple{\pmb{\sf{\: Solution :-}}}}}}[/tex]

[tex] \sf \: 3 \frac{3}{4} + 5[/tex]

[tex] \sf \: \frac{15}{4} + 5[/tex]

[tex] \sf \: \frac{15}{4} + 5[/tex]

[tex] \sf \: 5\frac{15}{4} [/tex]

[tex] \sf \: \frac{35}{4} [/tex]

➪ Therefore, She will have 35/4 gallons of water in all...~

Answer:

x = z sin H

Step-by-step explanation:

[tex]\sin H = \frac{x}{z} \\ \\ \implies \: x = z \: \sin H[/tex]

Answer:

I think its 44.9

Step-by-step explanation:

Answer:

X=3

Step-by-step explanation:

Work Shown:

A = P*(1+r/n)^(n*t)

A = 4750*(1+0.10/2)^(2*10)

A = 12,603.164099436

A = 12,603.16

That represents the account balance after 10 years. To find the interest only, subtract off the deposit amount.

interest = A-P = 12,603.16 - 4,750 = 7,853.16