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3 years ago

HELP I NEED HELP ASAP

Mathematics

1 answer:

Irina18 [472]3 years ago

5 0

Answer:

Step-by-step explanation:

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The fastest car on Earth, the Thrust SSC, would win every NASCAR race in America if it broke the rules. If it takes 0.5 hours to

kvv77 [185]

Answer:

760 miles per hour

Step-by-step explanation:

since it travels 380 miles in half an hour, multiply by two to see the answer

4 0

3 years ago

What is the factored form of 8X^2 +12X?

pogonyaev

The highest common factor of both terms is 4x, so take this out by dividing each term by 4x

8x^2 / 4x = 2x
12x / 4x = 3

So the factored form is:
4x(2x+3)

8 0

3 years ago

What is the difference of 864.2 and 363.3?

eimsori [14]

Answer: 864.2 i greater than 363.3 that is my answer

Step-by-step explanation:

6 0

3 years ago

Susan has 4 times as much money as her sister .If Susan has ten dollars ,how much money does her sister have.

vredina [299]

$2.50 of money because 4 times 2.5 = 10

8 0

3 years ago

The height of a triangle is 3cm less than twice the base. The area is 10cm2

Kamila [148]

Answer:

The base is 4cm and the height is 5cm.

Step-by-step explanation:

This is a solve the system question. Call H the height of the triangle and B the base. The question tells us:

$H=2B-3$

and

$\frac{B \times H}{2}=10$

Sub the first equation into the second (as H is already isolated). You will end up with a quadratic equation - solve that any way you wish (e.g. quadratic formula). I've provided the factored form below which shows you the roots:

$\frac{B(2B-3)}{2}=10\\\frac{2B^2-3B}{2}=10\\2B^2-3B=20\\2B^2-3B-20=0\\(2B+5)(B-4)=0\\B= - \frac{5}{2},4$

In this question, we take B=4. You can't have a negative side length so the other answer is eliminated. Now sub the value for B into either of the original equations. I'll use the first, again because H is already isolated:

$H=2(4)-3\\H=8-3\\H=5$

3 0

3 years ago