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1 year ago

Bria took a test with 120 questions. She made an 85%. How many questions did Bria get wrong on the test?

Mathematics

2 answers:

Dovator [93]1 year ago

8 0

Answer:

Step-by-step explanation:

120 divided by 0.85 is 102

120-102=18

Radda [10]1 year ago

5 0

Answer:

you'd get eighteen questions wrong

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Giving 20 points and brainiest!

sladkih [1.3K]

Answer:

1/2,3/6,5/10,8/16

Step-by-step explanation:

they all equal 1/2

Im not sure if thats what it was asking but yea

6 0

2 years ago

Read 2 more answers

How do solve for x in 50=-10(x+10)

Svetllana [295]

Answer:

x=-15

Step-by-step explanation:

50=-10(x+10)

Distribute 10: 50=-10x-100

Add 100 to both sides: 100+50=-10x-100+100

150=-10x

Simplify: 150/-10=-10x/-10

x=-15

4 0

2 years ago

2x2 – 9x + 2 = –1

Reika [66]

Answer:

C) The discriminant is greater than 0, so there are two real roots

Step-by-step explanation:

<u>Discriminant</u>

$b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0$

$\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}$

$\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}$

$\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}$

$2x^2-9x+2=-1$

$\implies 2x^2-9x+3=0$

$\implies a=2, b=-9, c=3$

$\begin{aligned}b^2-4ac &=(-9)^2-4(2)(3)\\& =81-24\\&=57 > 0\implies \textsf{two real roots}\end{aligned}$

5 0

2 years ago

What is the area of this figure? Please awnser Quick!! <br>

ch4aika [34]

24 bc thanos made the theory

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2 years ago

What is 17/3 in a percentage

Aneli [31]

First, convert 17/3 to an improper fraction. 17/3 becomes 5 2/3.
Then convert 5 2/3 to a decimal.

5 2/3 becomes 5.666...

Then convert the decimal to a percent.

5.666... becomes approximately 566.66%

4 0

2 years ago