All categories

2 years ago

Someone please help!!!!!!!!!!!!!!!

Mathematics

2 answers:

Harrizon [31]2 years ago

8 0

Answer:

Step-by-step explanation:

xy + | -49/1| (-1)

Let x=7 and y = 8

7*8 + | -49/1| (-1)

56 + | -49/1| (-1)

The absolute value of -49 is 49

56 +49 (-1)

Multiply

56-49

Pavlova-9 [17]2 years ago

4 0

Answer:

Step-by-step explanation:

Step 1: Define

xy + |-49/1|(-1)

x = 7

y = 8

Step 2: Simplify

xy + |-49|(-1)

xy + 49(-1)

xy - 49

Step 3: Substitute and Evaluate

7(8) - 49

56 - 49

You might be interested in

What is the solution for x in the equation (-4(x+1)+7x=8)?

a_sh-v [17]

-4(x + 1) + 7x = 8
-4x - 4 + 7x = 8
3x - 4 = 8
3x = 8 + 4
3x = 12
x = 12/3
x = 4 <===

6 0

3 years ago

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS

ladessa [460]

Answer:

-8 vertical in negative one horizontal

Step-by-step explanation:

Mark me brainliest!!

6 0

2 years ago

Read 2 more answers

Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Jus

vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = $\frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397$

$df = 42-1 =41$

t critical for 99% two tailed $= 2.733$

Margin of error $= 2.733*0.9397=2.568$

Confidence interval lower bound = $28.3-2.568=25.732$

Upper bound = $28.3+2.568=30.868$

3 0

3 years ago

Help me plz ''allen''

Svetlanka [38]

The answer is

11/10

Have a nice day night or afternoon

8 0

2 years ago

Read 2 more answers

Use the distributive property to write the expression shown to you as a product of two factors

Delicious77 [7]

2(3m+4n+2)

In fact 2×3m=6m;

2×4n=8n;

2×2=4

3 0

2 years ago