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3 years ago

Can someone help out? No BS please.

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

Answer:

the correct answer is angle EHB

oksian1 [2.3K]3 years ago

4 0

Answer:

Angle EHG

Step-by-step explanation:

If you want explanation tell me in comments

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marco and suzi each mulyiplied 0.721 X 100 Marco got 7.21 for his product suiz got 72.1 for her product which student multiplied

Marianna [84]

Size got it right because it’s multiplied by 100

5 0

2 years ago

What is the sum of 20x^2-10x-30

ivann1987 [24]

Answer:

The sum of the roots is 0.5

Step-by-step explanation:

The correct question is

What is the sum of the roots of 20x^2-10x-30

we know that

In a quadratic equation of the form

$ax^{2} +bx+c=0$

The sum of the roots is equal to

$-\frac{b} {a}$

in this problem we have

$20x^{2} -10x-30=0$

$a=20\\b=-10\\c=-30$

substitute

$-\frac{(-10)} {20}=0.5$

Verify

Find the roots of the quadratic equation

The formula to solve a quadratic equation is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

$a=20\\b=-10\\c=-30$

substitute

$x=\frac{-(-10)\pm\sqrt{-10^{2}-4(20)(-30)}} {2(20)}$

$x=\frac{10\pm\sqrt{2,500}} {40}$

$x=\frac{10\pm50} {40}$

$x=\frac{10+50} {40}=1.5$

$x=\frac{10-50} {40}=-1$

The roots are x=-1 and x=1.5

The sum of the roots are

$-1+1.5=0.5$ ----> is ok

5 0

3 years ago

What is the slope of the line that passes through the points ( 8 , − 6 ) and (8,−9)? Write your answer in simplest form.

Natalka [10]

Answer:

No slope

Step-by-step explanation:

The points given are on the vertical line x = 8

vertical lines have an 'undefined' slope....no slope

4 0

2 years ago

Help meeeeeeeeeeeeeeeweeeeeeeeeeeeeeeee

Yuri [45]

Step-by-step explanation:

This can be put into fractions like this

Say x is the length of the missing dimension

8.5/11 = 10.5/x

Because the 2 drawings are SIMILAR, the ratio of their side lengths has to also be the same

8.5 ÷ 10.5 = 0.8095

11 × 0.8095 = 8.9047

Roung the answer to the nearest tenth

x = 8.9 in

5 0

3 years ago

Z^4-4z^3+4z^2+48=0 how to find value of z?

Aliun [14]

There are no real solutions to solve Z. If there may be a typo or something, there are no solutions.

3 0

1 year ago

Can someone help out? No BS please. ​

Can someone help out? No BS please.