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3 years ago

Two sides of a triangle measure 25cm and 35cm. which of the following could be the measure of the 3rd side

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

11 cm? Im not that good at this.. If im correct any of those would work

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Order the numbers from least to greatest. 3 and thirty nine fortieths, 3 and nineteen twentieths, 3 and one half.

Assoli18 [71]

3 39/40 = 3.975
3 19/20 = 3.95
3 1/2 = 3.5

least to greatest : 3 1/2, 3 19/20, 3 39/40

8 0

3 years ago

Solve:7 +42-32-32 = 14.3-2a +7<br> A = -3<br> A= 0<br> A= 3<br> no solution

madreJ [45]

Answer:

a = 18.15

Step-by-step explanation:

$7+42-32-32=14.3-2a+7$

Combine like terms on the left side of the equation first. Add 7 and 42, then subtract 32 from the answer you get, then subtract 32 from that answer. This is going by order of PEMDAS.

Remember PEMDAS: (numbers 3 & 4 and numbers 5 & 6 are solved from left to right)

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

$-15=14.3-2a+7$

After combining like terms on the left side, you get -15. Now combine like terms on the right side of the equation by adding 14.3 and 7.

$-15=21.3-2a$

Get -2a alone by subtracting 21.3 from both sides.

$-36.3=-2a$

Divide both sides by -2.

$a=18.15$

In this equation, a should equal $\boxed{18.15}$ .

5 0

3 years ago

How do I solve this?

patriot [66]

You already know that y equals -4. It says that x equals 3, so multiply the -4 by 3 and because it has a negative number and a positive number it will equal -12. Remember anytime you see a letter after a number it means multiply. The complete problem should be -10 because 2 is a whole number you subtract it from -12. Hope that helped you out some.

6 0

3 years ago

Please help! It’s fairly easy!

icang [17]

Answer:

see below

Step-by-step explanation:

This would be true if the lines are parallel. We have no information about the lines, so we cannot assume the lines are parallel, so we cannot use the corresponding angles theorem

8 0

3 years ago

Read 2 more answers

Choose two values, a and b, each between 8 and 15. Show how to use the identity a^3+b^3=(a+b)(a^2-ab+b^2) to calculate the sum o

qaws [65]

Answer:

Step-by-step explanation:

a = 8

b = 10

a^3 =8^3 = 512

b^3= 10^3 =1000

a^3 + b^3 = 1512

a^2 = 64

-ab = - 80

b^2 = 100

a + b=18

(a + b) (64 - 80+ 100)

18 * (84)

1512'

5 0

3 years ago