3 years ago

Help me please 10 points :)

1 answer:

4 0

Answer:G

Step-by-step explanation:

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puteri [66]

Answer:

i think its either 120 or 140

5 0

4 years ago

solniwko [45]

She used 1/6 of 1/7 yds....." of " means multiply

1/6 * 1/7 = 1/42 yds <==

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4 years ago

Sedbober [7]

(2/3)=0.66667=x/y
x+y=60
x=60-y
(60/y)-1=2/3
60/y=5/3
y=36
x+36=60
x=24

24:36

4 0

3 years ago

Dafna11 [192]

A = 7
B = 14

For A:
(7(sqrt)2)sin(45) = 7

7/sin(30) = 14

4 0

4 years ago

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

3 years ago