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2 years ago

Can someone please help me! I have a quiz tomorrow and I’m frustrated!

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

3 0

The answer is b. You want to find to total change in temperature. To do this, you have to subtract -8 and 25, and then get the absolute value. |-8-25|

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Awnser fast to get prize <br> solve <br> -6+9.8x=33 1/5

vagabundo [1.1K]

-6+9.8x=33 1/5
9.8x=39 1/5
x=4

5 0

2 years ago

A fraction is less than 1. Choose a counterexample that will prove this conjecture false

Vesnalui [34]

Answer:

1st option

Step-by-step explanation:

Here we are trying to prove that not all fractions are less than 1. So we have to choose an example in which the fraction is more than 1.

1) $\frac{8}{7} = 1 \frac{1}{7}$

This fraction is greater than 1 hence it can prove that the conjecture is false.

2) ½ is lesser than 1 and will not prove that the conjecture is false.

7 0

2 years ago

Can someone help me out with this?

Anton [14]

i Think all are correct not sure tho

3 0

2 years ago

Read 2 more answers

Seven plus five times a number is gteater than or equal to negative 9

zubka84 [21]

Step-by-step explanation:

7+5(x) ( between here write the greater than or equal to sign) -9

5 0

2 years ago

Find the product and sum of the roots of the equation:<br> 2x^2-9x-10=0

BabaBlast [244]

Answer:

<h3> sum of the roots: $x_1+x_2=4\frac12$ </h3><h3> product of the roots: $x_1x_2=-5$ </h3><h3> Step-by-step explanation:</h3>

$2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10$

$b^2-4ac=(-9)^2-4(2)(-10)=81+80=161>0$

From Vieta's formulas applied to quadratic polynomial we have:

if $b^2-4ac\geqslant0$ then

sum of roots: $x_1+x_2=-\dfrac ba=-\dfrac{-9}2=4\frac12$

product of the roots: $x_1x_2=\dfrac ca=\dfrac{-10}2=-5$

3 0

2 years ago