3 years ago

Pls helpp and explain

1 answer:

8 0

A) because the first two numbers have to have a sum greater than the third. 29+39=68 which is less than the third number 69 so it doesn’t form a triangle

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PLEASE Help!!: Check for understanding:

Akimi4 [234]

1) Circumference: C = D × π = 40 × 3.14 = 125.6

Area: $S=r^2.\pi =(\frac{D}{2} )^2.\pi = (\frac{40}{2})^2.3,14=1256\\$

2) Perimeter: P = 10.82 +10.82 + 12 + ( 12 . 3,14 )/2 = 52.48 mm

Area: $S=\frac{9.12}{2}+(\frac{12}{2} )^2.\pi = 167.04$

ok done. Thank to me :>

8 0

2 years ago

Solve for a.

Tanya [424]

Final Answer: All Real Numbers

Steps/Reasons/Explanation:

Question: Solve for a. $4(a + 3)=12 + 4a$ .

Step 1: Expand.

$4a + 12 = 12 + 4a$

Step 2: Cancel $4a$ on both sides.

$12 = 12$

Step 3: Since both sides equal, we would have infinitely many solutions.

~I hope I helped you :)~

7 0

3 years ago

Read 2 more answers

Simplify the following expresion. Classify the resulting polynomial 4x(x+1)-(3x-8)(x+4) A) quadratic monomial B) quadratic trino

lana66690 [7]

Answer:

Quadratic binomial

Step-by-step explanation:

4x(x+1) - (3x-8)(x+4)

Open parenthesis

(4x^2+4x) - (3x^2+12x-8x-32)

(4x^2+4x - 3x^2-12x+8x+32)

Collect like terms

4x^2-3x^2+4x+8x-12x+32

=x^2+32

Quadratic binomial

6 0

3 years ago

Find the value of 5x - 2y+ 3z when x = 7 , y = 11 and z = -1

Oksanka [162]

By replacing you get:

5*7-2*11+3*(-1) = 35-22-3= 10

so the answer is 10.

If you like my answers, feel free to follow me and ask me more maths problems. :)

7 0

3 years ago

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Two cars leave towns 800 kilometers apart at the same time and travel toward each other. One car's rate is 16 kilometers per hou

adell [148]

Wait what grade is this in also what class is this

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3 years ago