Ask question

Ask question

All categories

3 years ago

14

Find the perimeter of a rectangle with length 14 centimeters and width 9 centimeters. 46 cm. 23 cm. 53 cm. 30 cm.

1 answer:

Ludmilka [50]3 years ago

7 0

The answer is 46 cm because you just add each side up! Two sides of the rectangle are 14 cm and two sides are 9 cm. Just do 14+14+9+9! Your answer is 46

You might be interested in

Does anyone know how to solve this

madam [21]

Hey I think the answer is letter b if not
I am sorry

6 0

3 years ago

Stacy thinks her employer may not be withholding the correct amount from her paychecks for state income tax. She made arrangemen

lyudmila [28]

The answer is B) <span>Stacy’s employer is withholding too little for state income tax.

Stacy's state income tax withholding should be:
163.88 x 19% = $31.14, which is less than $24.58</span>

4 0

4 years ago

4. Tests are performed to determine the Tool Life of a high speed steel single edge cutting tool. At a cutting speeds (v) of 180

podryga [215]

Answer:(a) n=0.233

Step-by-step explanation:

Given

We Know according to Taylor tool life

$VT^n=c$

V=cutting speed

T=tool life

n=tool life exponent

c=constant

$180\times \left ( 4.25\right )^n=110\times \left ( 35\right )^n$

$\frac{180}{110}=\left ( \frac{35}{4.25}\right )^n$

$1.636=\left ( 8.235\right )^n$

taking log both side

$\ln \left ( 1.636\right )=n\ln \left ( 8.235\right )$

n=0.233

3 0

3 years ago

Whoever helps me is my saviour! I need this in by tomorrow!

Alenkasestr [34]

Answer:

1) $\frac{7}{8}+\frac{2}{5}=\frac{7\times5+2\times8}{40}=\frac{35+16}{40}=\frac{51}{40}$ .

2) $2\frac{1}{3}\times \frac{1}{4}=\frac{7}{3}\times\frac{1}{4}=\frac{7}{12}$

hence, answer is 7/12.

3) We have to divide £72 in the ratio 2:3:1

the total of the ratio is=2+3+1=6

so on dividing 72 into 6 parts we have 72/6=12

First '2' parts=2×12=24

second '3' part=3×12=36

last '1' part=1×12=12

so dividing £72 in the ratio 2:3:1 is: £24,£36 and £12

4) 39 people out of 65 have blonde hair.

Number of people who do not have blonde hair=65-39=26

percentage people who do not have blonde hair is given by:

$=\frac{26}{65}\times100\\ \\=40%$

Hence, percentage people who do not have blonde hair is 40%

5) 20% of 90= (20/100)×90

=18

Hence, 20% of 90 is 18.

6) Factorise

$2x^2+18x^3=2x^2(1+9x)\\\\2x^2+18x^3=18x^2(x+\frac{1}{9})$

7) Expand

$(y-8)(y-6)=y(y-8)-6(y-8)=y^2-8y-6y+48\\\\(y-8)(y-6)=y^2-14y+48$

8)

$x^2+4x+3=x^2+x+3x+3=x(x+1)+3(x+1)=(x+3)(x+1)$ .

9)

$y^{0}=1$

10)

$0.0342=3.42\times10^{-2}$

11) x= -4 y=3

and z=4 x-y^3

z=4×(-4)-3^3

z= -43

12) $y+2x=x-2\\\\2x-x=-y-2\\\\x=-y-2$

13) $8-7x=22\\\\7x=8-22\\\\7x=-14\\\\x=-2$

Hence x= -2

14) 5,10,15,20,.... $a_{1}=5=5\times1 , a_{2}=10=5\times2 , a_{3}=15=5\times3,........,a_{n}=5n=5\timesn$

Hence, nth term is 5n.

15) (63×128)/32.9=245.106.

16) 938×21=19698.

8 0

3 years ago

Read 2 more answers

Use quadratic method :<br> 6y^2 - 4y - 3=

Naya [18.7K]

Answer:

see explanation

Step-by-step explanation:

look at the photo

6 0

2 years ago