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3 years ago

Simplify -4b+(-9k)-6-3b+12

Mathematics

1 answer:

andre [41]3 years ago

8 0

$\boxed{-7b-9k+6}$

<h2>Explanation:</h2>

We have the following expression:

$-4b+(-9k)-6-3b+12$

First of all, we need to open parentheses:

$-4b-9k-6-3b+12$

Next, combine like terms:

$-4b-3b-9k-6+12 \\ \\ \therefore \boxed{-7b-9k+6}$

<h2>Learn more:</h2>

Simplify expressions: brainly.com/question/13378777

#LearnWithBrainly

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3 years ago

James is placing an order for four for his bakery. The company he purchases from charges $25 for the first bag and $5 for each a

VARVARA [1.3K]

Answer:

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3 years ago

Find the x and y intercepts of -7xt6y=5

iren2701 [21]

-7x + 6y =5
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-7(x) + 6(0)=5
x=-5/7

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3 years ago

The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 22

marin [14]

Answer: 4.27% of adults in the USA have stage 2 high blood pressure.

Step-by-step explanation:

Let x be a random variable that denotes a person with high blood pressure .

Given: Average blood pressure: $\mu=122$

Standard deviation: $\sigma=22$

Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.

The probability that an adult in the USA have stage 2 high blood pressure:

$P(x\geq160)=P(\dfrac{x-\mu}{\sigma}}\geq\dfrac{160-122}{22})\\\\=P(z\geq1.72)\ \ \ [z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(z$

Hence, 4.27% of adults in the USA have stage 2 high blood pressure.

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3 years ago

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mel-nik [20]

Answer:

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Step-by-step explanation:

vertex angles are congruent so you can set them equal to each other and solve

and then a straight like adds up to 180 so 180-(7(x-3)+5y)= your missing angle and then that angles is congruent to its opposite so 2(5z+15)=60

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3 years ago