PLEASE HELP!!!!!!solve for the equations :
- 3y + 7 + 3(y-1) = 2(2y+6)

- (x-5)(x+4) = (x+7)(x-6)

- 2(x+1)2(x-2)2 = x(x-3)

Answers

Answer 1

Answer: -3y + 7 + 3(y - 1) = 2(2y + 6)
-3y + 7 + 3y - 3 = 4y + 12
4y = 4 - 12 = -8
y = -8/4 = -2.

-(x - 5)(x + 4) = (x + 7)(x - 6)
-(x^2 + 4x - 5x - 20) = x^2 - 6x + 7x - 42
-x^2 + x + 20 = x^2 + x - 42
2x^2 = 62
x^2 = 62/2 = 31
$x=\pm√(31)$

Answer 2

Answer: 1.y=-2
2. x1,2=+-5.56
3.x1=16.13 , x2=-0.85

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I need help with #6, pls help me out

Answers

The advantage is that they will be saving alot of money and they know that they will have it in 4 years. The disadvantage is that if they need some if the money before 4 yaers, they can't get it because the CD is for 4 years.

Urgent!!!!If you were 6' 6 1/2" tall, about how many meters tall would you be? Hint: "There are 3.28 feet in a meter."

6.4 meters
2 meters
1.8 meters
7 meters
3.5 meters

Answers

The height of the person (6 feet and 6.5 inches) is equivalent to 1.994 meters (approx. 2 meters).

How to determine the equivalent height by conversion factor

In this problem we know that height of a person measure in feet and inches, please notice that 1 foot is 12 inches and 1 meter is 3.28 foot. The conversion formula is shown below:

y = k · x

Where:

x - Original height, in feet.
k - Conversion factor, in meters per foot.
y - Resulting height, in feet.

Now we proceed to determine the equivalent height:

y = (1 m / 3.28 ft) · [6 ft + (6.5 in) · (1 ft / 12 in)]

y = (1 m / 3.28 ft) · (6 ft + 0.541 ft)

y = (1 m / 3.28 ft) · (6.541 ft)

y = 1.994 m

To learn more on conversion factors: brainly.com/question/30567263

#SPJ3

Step-by-step explanation:

2 meters is the answer

please give me brainliest

You bought one skirt at $18.27, two shirts at $15.78, and a pair of shoes at $34.50. If the tax rate is 7%, what is the total cost of your purchase?Question 4 options:

$84.23

$90.23

$49.83

$69.00

Jack bought two sweaters for $17.99 and a pair slacks for $25.50. Including a 5 1/2% tax, how much was his total purchase?

Question 5 options:

$64.86

$61.48

$52.99

$28.98

Answers

Answer:

(A) $90.23

(B) $64.86

Step-by-step explanation:

(A) Given, The cost of one skirt = $18.27

The cost of one shirt = $15.78, Then cost of two shirt = 2 × $15.78 =$ 31.56

and The cost of pair of shoes = $34.50

Thus, I have done total purchase of $18.27 + $31.56 + $34.50 = $84.33.

And, paying the tax of 7%

The total cost I spend = $84.33 × (100 + 7)% = $90.23

(B) Given, The cost of one sweater = $17.99, Then cost of two sweater = 2 × $18.27 =$ 35.98

The cost of one slack = $25.50

Thus, I have done total purchase of $35.98 + $25.50 = $61.48.

And, paying the tax of 5.5%

The total cost I spend = $61.48 × (100 + 5.5)% = $64.86

The answers to number 1 &2
1. $90.23
2. $64.86

Yo could y’all help me with 6th grade math

Answers

Answer:

260

570

850

920

410

710

660

120

that all for now they out of order

Step-by-step explanation:

Answer:

260
120
410
570
590
190
850
100
300
920
530
200
410
630
960
710
810
1000
660
810
640

Step-by-step explanation:

You better give brainliest for that also please refrain from these type of questions. I bet people would apprieate it

Use reference angles to find the exact value of tan 405 deg

Answers

$tan405^o=tan(360^o+45^o)=tan45^o=1$

ΔBCD is rotated 80° clockwise about the origin to form ΔKLM. If m∠KLM=30° , what is m∠BCD?m∠BCD=30°

m∠BCD=50°

m∠BCD=80°

m∠BCD=110°

Answers

The triangle is merely rotated. No other changes have been done to it whatsoever. Therefore, the measure of the angle should still be the same. Since angle KLM is equal to 30 degrees, then the measure of angle BCD should also be equal to 30 degrees.

Answer: m∠BCD=30°

Answer:

Step-by-step explanation:

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At the space center, Karen bought a model of a shuttle. She started working on the model the next day at 11:13 A.M. She worked until leaving for lunch at 11:54 A.M. After lunch, she worked on the model again from 1:29 P.M. Until 1:46 P.M. How long did Karen work on the model? Karen worked on the model for minutes.

A recipe for a vegetable dish contains a total of 924 calories the dish to serve six people how many calories are in each serving