MATHEMATICS HIGH SCHOOL

Which shows a difference of squares?10y^2 – 4x^2

16y^2 – x^2

8x^2 – 40x + 25

64x^2 – 48x + 9

Answers

Answer 1
Answer: Hello,

1) (√10 y)²-(2x)²
2) (4y)²-x²
3)8x²-40x+25=8(x²-5x)+25
=8(x²-2*5/2*x+25/4)+25-8*25/4
=8(x-5/2)²-25
=8(2x-5)² /4 -25
=[√2*(2x-5)]²-5²

4)
64x²-48x+9=(8x-3)²-0²

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If Tomas rides his bike at a steady rate of 4 miles in 6 minutes, how much miles can he do in 1 minute? PLEASE HELP

Answers

4 Miles 6mins
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What is the value of log 43? Use the calculator. Round your answer to the nearest tenth.

Answers

2.0 = Value of Log(43)

Answer:

It’s C on Edge which is 1.6

Step-by-step explanation:

I got it right

Which is the better buy if Maya plans on buying a lot of milk?

Answers

Answer:

2 gallons for 5.98$

Step-by-step explanation:

for two gallons.

1/4g milk = 12.92

1/2g milk= 8.36

1g milk= 8.50

Answer:

2 gallons

Step-by-step explanation:

Estimate the quotient using compatible numbers. 63.52 Divided by 7.9

Answers

Alright, to get this answer, what we need to do first is round. Because 63.52 is close to 64, and 7.9 is close to 8, we can change this problem from 63.52 divided by 7.9 to 64 divided by 8, which is a far easier question to do without a calculator. When we do 64 divided by 8, we get 8, which should be pretty close to the answer of 63.52 divided by 7.9.
rounding 63.52 to whole numbers=64
rounding 7.9 to whole number=8
64 ÷8=8

Given the two triangles are similar, what are the values of q and t? Round to the nearest hundredth.

Answers

Answer:

t = 7.5 cm , q= 7.5 cm.

Step-by-step explanation:

Given : Two similar triangle .

To find : what are the values of q and t ,Round to the nearest hundredth.

Solution : We have given Two similar triangle GHI and DEF.

Property of two similar triangle : The ratios of the lengths of their corresponding sides are equal.

Corresponding sides HI ≅ EF and GI≅DF. GH≅DE

HI = t  , EF = 4.5 , GI = 12.5 , DF = q , Gh = 10 , DE = 6

(t)/(4.5) = (10)/(6) .

On cross multiplication

t * 6 = 4.5 * 10.

t *  6 = 45 .

On dividing both sides by 6

t = 7.5 cm.

Now, for q

(q)/(12.5) = (6)/(10) .

On cross multiplication

q * 10 = 12.5 * 6.

q * 10 = 75.0

On dividing both sides by 10

q= 7.5 cm.

Therefore, t = 7.5 cm , q= 7.5 cm.
Set up proportions. 6/10 = 4.5/t. Cross multiply 6t = 45. Divide both sides of the equation by 6 and get t = 7.5.
Next proportion is q/12.5 = 6/10. Cross multiply 10q = 750. Divide both sides of the equation by 10 and get q = 7,5.

Which of the following is a example of perpendicular lines

Answers

The correct option is D.

Important information:

  • Each graph has two lines.

Perpendicular lines:

Two lines are called perpendicular lines if the angle between those lines at the intersection point is 90 degrees.

In option A, the lines are parallel because they have the same direction and slope.

In option B, if we increase the lines, then they can not make a 90-degree angle.

In option C, the lines are not making a 90-degree angle.

In option D, the lines are perpendicular because they are making a 90-degree angle.

Therefore, the correct option is D.

Find out more about 'Perpendicular lines' here:

brainly.com/question/2096532
Its option D. the first is parallel and the rest two will intersect at a point but not at 90 degree. Since, in the fourth one, the lines meet at 90 degree, it is a perpendicular line
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