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3 years ago

Help meplease help me these problems

Mathematics

1 answer:

natima [27]3 years ago

4 0

15) 6.1

17) 0.91

19) 86.96

20) I'm not sure,but I think is 82.1%

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One solution to a quadratic function, h, is given.

Margaret [11]

Answer:

B. The other solution to function $h$ is $-4-i\,7$ .

Step-by-step explanation:

From Algebra, we remember that quadratic functions of the form $a\cdot x^{2}+b\cdot x + c$ has solutions of the form:

$x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}$ , where both are complex if and only if $\sqrt{b^{2}-4\cdot a \cdot c}< 0$ .

Hence, if one solution of the quadratic function is $-4+i\,7$ , then the other solution is $-4-i\,7$ . The correct answer is B.

7 0

3 years ago

What is the answer to this 584,405÷884

I am Lyosha [343]

Theirs your answer 661.091628959

6 0

2 years ago

Read 2 more answers

Robert is accelerating a cart at the rate of 2.2 meters/second2. If the mass in the cart is doubled, and the net force is also d

Sindrei [870]

F = ma

the question said, F and M both are doubled ,so,

2F =2ma
but you can see the result is same !!

so acceleration doesn't change !! so final acceleration is also 2.2 !!

3 0

2 years ago

What IS 20 divided by 13 ?

goldenfox [79]

$Solution,\mathrm{Convert\:improper\:fractions\:to\:mixed\:numbers}:\quad \frac{20}{13}=1\frac{7}{13}$

$Steps:$

$\frac{20}{13}$

$\mathrm{Long\:Division}\:\frac{20}{13}:\quad 1\quad \mathrm{Remainder}\quad \:7$

$Convert\:to\:mixed\:number:\:Quotient\frac{Remainder}{Divisor},\\\frac{20}{13}=1\frac{7}{13}$

$Hope\: This\: Helps!!!$

4 0

3 years ago

Read 2 more answers

I dont need it anymore

vova2212 [387]

Answer:

I'm sorry but what is the question?

Step-by-step explanation:

8 0

3 years ago

Help meplease help me these problems​

Help meplease help me these problems