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3 years ago

The expression below is the factorization of what trinomial?

Mathematics

1 answer:

KiRa [710]3 years ago

6 0

Answer:

A. 14x^2-11x-15

Step-by-step explanation:

7x*2x=14x^2

-21x+10x=-11x

5*-3=-15

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Maria received 5/7 of the 42 votes cast for class president. how many votes did she receive?

baherus [9]

42/7= 6
5*6=30
30 votes

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3 years ago

Please help thanks

myrzilka [38]

Answer:

X= 62°

Step-by-step explanation:

Remember a straight line is 180°. If we were to try to find x, we would have to subtract 180 by 118. If we do that then we get 62°. And I think there corresponding angles.

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3 years ago

Using the order of operations what should be done first to evaluate 12+ -6×3+ -2 equals

Tamiku [17]

Answer: U will do multiplication to evaluate 12 + -6 x 3 + -2 which would be -18 so now it would look like this 12 + -18 + -2

Step-by-step explanation:

P- Parentheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction

6 0

3 years ago

Choose the number sentence that shows the identity property of addition. A. 7 + 7 = 14 B. 7 + 0 = 7 C. 7 + 3 = 10

ehidna [41]

it would be B.7+0=7

7 0

4 years ago

Read 2 more answers

A) For ΔJKL use the Triangle Proportionality Theorem to solve for x.

scoray [572]

Answer:

Part a) The value of x is 10

Part b) The perimeter of triangle JKL is $79\ units$

Step-by-step explanation:

Part a) Find the value of x

we know that

The <u>Triangle Proportionality Theorem,</u> states that if a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally

$\frac{3x-5}{3x-5+10}=\frac{28-8}{28}\\ \\\frac{3x-5}{3x+5}=\frac{20}{28} \\ \\(3x-5)(28)=(3x+5)(20) \\ \\84x-140=60x+100\\ \\84x-60x=140+100\\ \\24x=240\\ \\x=10$

Part b) we know that

The perimeter of triangle JKL is equal to

$P=JK+KL+JL$

substitute the values

$P=(3x+5)+28+16=3x+49$

substitute the value of x

$P=3(10)+49=79\ units$

8 0

3 years ago