Plz help with 1 through 6 show ur work

Answers

Answer 1

Answer: 1. 5×10×7= 350
2. 12×6×8=576
3. 4.2×3.5×2=29.4
4. 1.1×1.5×2.6=4.29
5.4×3×5= 60
6. 4.1×2.6×5.1=47.97

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How I can write a story about the doubles plus 2 fact 5 + 7 =12

Answers

If I have 5 pencils , and you give me 7pencils how much do I have now?

Answer:

Here's a story: I had 5 dollars in my piggy bank. My mother gave me 7 more dollars for cleaning my room. I now have 12 dollars. (:

Step-by-step explanation:

PLEASE HELP I GIVE THANKS

Answers

Let's plug the given value is in the formula : ${ V }_( cylinder )=\quad \pi { r }^( 2 )h$

First cylinder : ${ V }_( cylinder1 )=\quad \pi { 8 }^( 2 )21=\pi \cdot 64\cdot 21=1344\pi \quad { cm }^( 3 )$

Second cylinder : ${ V }_( cylinder2 )=\quad \pi { 11 }^( 2 )45=\pi \cdot 121\cdot 45=5445\pi \quad { cm }^( 3 )$

$5445-1344=4101\n \n 4101\pi \quad { cm }^( 3 )$

Answer is D

Solve the following simultaneous equations using an appropriate method. a) 7x + 3y = 16
y = 4x - 1

b) 2x + y = 8
4x + 3y = 16

c) -3x + 2y = 19
4x + 5y = 13

d) -3x + 7y = 9
4x - 3y = 7

e) -4x + 5y = -7
x = 23 - 3y

f) y = -x
y = -2/5x - 1/5

Answers

Good evening ,

Look at the photo below for the answer.

Answer:

a) x = 1 , y = 3

Step-by-step explanation:

a) 7x + 3y = 16

y = 4x - 1

3y + 7x = 16 ... (i)

y - 4x = -1 ... (ii)

Solving the simultaneous equation by substitution;

Equation (ii) tells us that y = 4x - 1

Substituting that in (i) gives;

3(4x - 1) + 7x = 16

12x - 3 + 7x = 16

19x = 16 + 3 = 19

x = $(19)/(19)$ = 1

y = 4(1) - 1 = 3

Help fast What is the area of the trapezoid? [A = 1 /2 (b1 + b2)h] A 1249.5 B162.75 C 105 D 38.75

Answers

Answer:

Step-by-step explanation:

What you do is based off the formula. a=1/2(24+18)5=105. C is your answer.

Answer:

area = b1+b2/2 *h

let b1 +24

let b2 = 18

H =5

24+18/2 *5

Area = 105

Step-by-step explanation:

What is the range of 50,48, 56, 58, 54, 50, 48, 56, 46

Answers

you have to take 58-46= 12

The range is... 12.

subtract the highest value from the lowest value

58 - 46 = 12

When 4 is added to nine hundredths what numeral represents the sum

Answers

4 is written as 4
nine hundredths is written as .09
When they're added, their sum is 4.09 .

4 + .09 = 4.09
This represents 4 and nine hundredths