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3 years ago

Help me find y........

Mathematics

1 answer:

Elodia [21]3 years ago

4 0

Answer:

Step-by-step explanation:

the sum of all angles in a quadrilateral must be 360º

y+88+25+35 = 360

y = 360=88-25-35

y = 212º

the sum of all angles in an octagon must be 1080º

45+45+140+140+6y = 1080

6y = 1080-90-280

6y = 710

y = 710/6

y=~ 118,3º

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Need help with math problem give 5 stars and brain thingy point

Lyrx [107]

Answer:

d) 3/8

Step-by-step explanation:

0, 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8, 1

Hope this helps!

3 0

2 years ago

Read 2 more answers

PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

Alex17521 [72]

Solution:

$\sqrt{4x + 13} = x + 2$

First square both sides.

$= > ( \sqrt{4x + 13} ) ^{2} = (x + 2) ^{2}$

Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

$= > 4x + 13 = {(x)}^{2} + 2 \times x \times 2 + (2) ^{2} \\ = > 4x + 13 = {x}^{2} + 4x + 4$

Now, transpose 4x and 4 to LHS.

$= > 4x - 4x + 13 - 4 = {x}^{2} \\$

Now, do the addition and subtraction.

$= > {x}^{2} = 9 \\ = > x = \sqrt{9} \\ = > x = ±3$

Answer:

x = ± 3

Hope you could understand.

If you have any query, feel free to ask.

3 0

2 years ago

Can anyone help me with this

Natalka [10]

F(x) = 2x and G(x) = x^2 + 2

(G - F)(x) just means we subtract the functions from each other.

x^2 + 2 - 2x

Let's rearrange the expression

x^2 - 2x + 2

5 0

3 years ago

Read 2 more answers

Suppose the weekly revenue for a company is given byr: 202400p wherep is the price of their product. What is the price of their

Rudiy27

Answer:

(a) The price for a revenue of $18,750 is $239.2.

(b) They sold 710 colonial houses and 2130 ranch houses

Step-by-step explanation:

(a) If the weekly revenue is defined as

$r=2p^2+400p$

then the price must be calculated as:

$r=2p^2+400p=18750\\\\2p^2+400p-18750=0$

The roots of this function are

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-400 \pm \sqrt{400^2-4*2*(-18750)}}{2*2}\\ \\x=\frac{-400 \pm 556.78}{4}\\ \\x_1=-39.2\\x_2=239.2$

The first root is negative, so it is not a real solution. So the second root is the answer.

The price for a revenue of $18,750 is $239.2.

(b) Last year they sold three times as many ranch models (Hr) as they did colonial models (Hc):

$H_r=3*H_c$

The total amount of houses sold (colonial + ranch) is 2840

$H_c+H_r=2840\\H_c+3*H_c=2840\\4*H_c=2840\\H_c=2840/4=710\\\\H_r = 3*H_c=3*710=2130$

3 0

3 years ago

Your family Used two full tanks of gasoline on a road trip. Your car drives about 25 miles per gallon on a road trip. Your car d

Reika [66]

Answer:

1 : 24

2: 600

3: 112.5

4: no i need 63 $

Step-by-step explanation:

1: 12*2=24

2: 24*25=600

3: 24*4.5=112.5

4:350 miles = 14 galoon=14*4.5=63$

3 0

3 years ago

Help me find y........​

Help me find y........