3 years ago

Evaluate the expression when a= -2 and b=3. ab=

Mathematics

1 answer:

zimovet [89]3 years ago

6 0

The answer is negative 6 or -6 because-2 x 3 is 6

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HELPPPPP !!!!!!! Please answer correctly Will mark Brianliest !!!!!!!!!!

azamat

Sorry if I couldn’t help

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3 years ago

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find the least common denominator of the following rational expression 1/x-5 , x+3/x^2-10x+25, 7x/x^2-25

I am Lyosha [343]

Hello there!
Find the last common denominator of the following rational expression 1/x-5 , x+3/x^2-10x+25, 7x/x^2-25

Find the LCD.
$x^{2} (x-5)(x+5)$

Answer: $x^{2} (x-5)(x+5)$

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3 years ago

What is the vertex (x,y)? h(t)=2x^2+4x+7<br> PLS SHOW WORK

Nesterboy [21]

Hack
for y=ax^2+bx+c
the xvalue of the vertex is -b/2a
and the y value is found by subsituting that for x

so

-b/2a

h(t)=2x^2+4x+7
a=2
b=4
-b/2a=-4/(2*2)=-4/4=-1
the y value
h(-1)=2(-1)^2+4(-1)+7
h(-1)=2(1)-4+7
h(1)=2+3
h(1)=5

(-1,5) is da vertex

6 0

3 years ago

in a 3-digit number, the hunderds digit is one more than the ones digit and the tens digit is twice the hundreds digit. If the s

Stels [109]

Answer:362

Step-by-step explanation:

So, the ones digit is 2. Since the hundreds digit is one more, it's 3. And because the tens is twice the hundreds, it's 6. The number is 362

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3 years ago

The remainder after diving x^4+3x^3-8x^2+5x-9 by x+5 is ____.

raketka [301]

Use the polynomial remainder theorem. It says that a polynomial $f(x)$ has remainder $f(c)$ upon division by $x-c$ .