1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AnnyKZ [126]
3 years ago
9

2*10⁴-7³ please help​

Mathematics
1 answer:
melisa1 [442]3 years ago
7 0

Answer:

19657

Step-by-step explanation:

By PEMDAS, we know we have to calculate the exponents first, then multiply the 2, and then subtract the 7³

2*10⁴ = 20000

20000 - 7³ = 19657

This is the third time I've seen this question. Are you posting this question again and again?

You might be interested in
Sara left a bin outside in her garden to collect rainwater. She notices that 1/8 gallon of water fills 2/3 of the bin. Write and
inn [45]
The answer should be 2/3 divided by 1/8 gallons, plus 2/3
5 0
4 years ago
Read 2 more answers
Evaluate the expression for x = 3, y=13 , and z = 5. 12x−3y4x−z
iren2701 [21]
12x + (-3y) + 4x + (-z)
12 (3) + -3 (13) + 4 (3 ) + (-5)
36 + -39 + 12 + (-5)
36 + 12 -39 - 5
48 - 44
4
6 0
3 years ago
Read 2 more answers
A study is performed in a large southern town to determine whether the average amount spent on food per four-person family in th
hoa [83]

Step-by-step explanation:

H0: u = 150

H1: u ≠ 150

Total sum = 15933.24

N = 100

Mean = 15933.24/100

= 159.3324

σ² = 25954.03 - (159.3324)²/100

σ² = 556.213

σ = √556.213

σ = 23.8162

Testing hypothesis

t = (bar x - u)/ σ/√n

= 159.3324-150/23.8162/√100

= 3.91

We will have a p value of 0.02

0.0002 < 0.01

We reject null hypothesis at 1% level of significance

C. Mean = 159.3324

Se= 2.3936

Df = 100-1 = 99

Critical value at 0.01 = +-2.626

T = x-u/s.e

= -2.626 =( x -150)/2.3936

When we cross multiply and solve this

X = 143.714 for the lower tail

2.626 = (x-159)/2.3936

= 156.286 for upper tail.

We therefore reject H0 at

Bar X <= 143.71

Bar X >= 156.286

At 10%

Critical t = 1.660

-1.660 = (x - 150)/2.3936

Solving this ,

X =146.02 at the lower tail

1.660 = (x-150)/2.3936

X = 153.97

We reject H0 at

X<= 146.03

X>=153.97

4 0
3 years ago
In which step did the veterinarian make the first error?<br> Step 1<br> Step 2<br> Step 3<br> Step 4
inna [77]

Answer:step 3 Step-by-step explanation: because it is right and i took the test edge 2021

4 0
3 years ago
Use vertical multiplication to find the product of:
Rom4ik [11]

Answer:

x^6+x^4+4x^3-2x^2-x+3

Step-by-step explanation:

x^3+2x+3

\times(x^3-x+1)

---------------------------------

First step multiply your terms in your first expression just to the 1 in the second expression like so:

x^3+2x+3

\times(x^3-x+1)

---------------------------------

x^3+2x+3  Anything times 1 is that anything.

That is, (x^3+2x+3) \cdot 1=x^3+2x+3.

Now we are going to take the top expression and multiply it to the -x in the second expression. -x(x^3+2x+3)=-x^4-2x^2-3x.  We are going to put this product right under our previous product.

x^3+2x+3

\times(x^3-x+1)

---------------------------------

x^3+2x+3

-x^4-2x^2-3x  

We still have one more multiplication but before we do that I'm going to put some 0 place holders in and get my like terms lined up for the later addition:

x^3+2x+3

\times(x^3-x+1)

---------------------------------

0x^4+x^3+0x^2+2x+3

-x^4+0x^3-2x^2-3x+0  

Now for the last multiplication, we are going to take the top expression and multiply it to x^3 giving us x^3(x^3+2x+3)=x^6+2x^4+3x^3. (I'm going to put this product underneath our other 2 products):

x^3+2x+3

\times(x^3-x+1)

---------------------------------

0x^4+x^3+0x^2+2x+3

-x^4+0x^3-2x^2-3x+0  

x^6+2x^4+3x^3

I'm going to again insert some zero placeholders to help me line up my like terms for the addition.

x^3+2x+3

\times(x^3-x+1)

---------------------------------

0x^6+0x^4+x^3+0x^2+2x+3

0x^6-x^4+0x^3-2x^2-3x+0  

x^6+2x^4+3x^3+0x^2+0x+0

----------------------------------------------------Adding the three products!

x^6+x^4+4x^3-2x^2-x+3

8 0
4 years ago
Other questions:
  • Can someone plZzzzZZ help me with all of the questions plzzzzzzZZ
    15·1 answer
  • What facts are true for the graph of f(x) = 4x5^x
    11·1 answer
  • Can someone help me with the question in the image please i will mark as brainlyest if correct
    11·1 answer
  • Bruce bought a map that cost $7.35 he used a $10 bill to pay for his map what is the change
    5·1 answer
  • If the property tax on a 300,000 Is 2,220 what is the tax on a 100,000 home
    7·1 answer
  • 1. Which color combination is the
    12·1 answer
  • Hi im Elizabeth and im new what do i do
    5·2 answers
  • Please help. Will give BRAINLIEST!!!!!
    10·2 answers
  • How to solve this problem<br> -3 1/3 x (-2 7/10)
    8·1 answer
  • Find the midpoint of the line segment. (Giving 25 points please hurry)​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!