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3 years ago

Evaluate the expression when a=5 and b= -6 -9b+a

Mathematics

1 answer:

lora16 [44]3 years ago

8 0

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

What is ?

Step-by-step explanation:

-9(b) + a = ?

-9(-6) + 5 = ?

54 + 5 = ?

59 = ?

<h3>Your answer is 59.</h3>

I hope this helps!

- sincerelynini

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Which equation represents each scenario

Mkey [24]

Answer:

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Kevin has 10 signs. he's adding 5 signs, so divide 10 to 5 to get 2

Harvey has 5 in 1 minute, i would say in 2 minutes he'll have 10

Fran adds $25 to her $150 then she'll get $175.

Step-by-step explanation:

P= Parentheses

E= Exponent

M= Multiplication

D= Division

A= Addition

S= Subtraction

If this doesn't help then sorry , hope this helps.

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2 years ago

Which is equivalent to x?<br> *image included below*

Assoli18 [71]

Answer:

$\bigodot B.\:\: 31\sqrt 3$

Step-by-step explanation:

$\huge x= 62.\cos 30\degree$

$\huge x= 62.\frac{\sqrt 3}{2}$

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8 0

2 years ago

!!! Help ASAP please!!!!In DEF, sin D = 24/26 What is cos E?

Georgia [21]

Answer:

Step-by-step explanation:

Cosine is the ratio of "adjacent" to "hypotenuse"

With respect to the Angle E, the adjacent side is FE and the hypotenuse (always opposite side to 90 degree angle) is DE.

We are given DE = 26, but we need FE. We will solve for FE using Pythagorean Theorem, which tells us:

leg^2 + another leg^2 = hypotenuse^2

So, we will have:

10^2 + FE^2 = 26^2

Now, we solve for FE:

$10^2 + FE^2 = 26^2\\100+FE^2=676\\FE^2=576\\FE=24$

So,

Cos(E) = adj/hyp = 24/26

Correct answer is A

7 0

3 years ago

Please help me with this!

DochEvi [55]

Answer:

10 is real, rational, integer, whole, natural

5/6 is real, rational

sqrt of 24 is real, irrational

0 is real, rational, integer, whole

sqrt 81 is real, rational, integer, whole, natural

Step-by-step explanation:

Classification

6 0

3 years ago

The daily revenue at a university snack bar has been recorded for the past five years. Records indicate that the mean daily reve

gladu [14]

Answer:

The sampling distribution has a mean of $1,500 and a standard deviation of $47.67

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$

In this problem, we have that:

$\sigma = 500, n = 110$

$s = \frac{500}{\sqrt{110}} = 47.67$

The sampling distribution has a mean of $1,500 and a standard deviation of $47.67

6 0

3 years ago