All categories

3 years ago

Do I multiply, please help

Mathematics

2 answers:

NikAS [45]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

Leokris [45]3 years ago

5 0

to find the surface area, you need to find the area of all 6 sides using the dimensions given. each visible side has an opposite side that has the same dimensions.

1) 6*2=12

2) 6*2=12

3) 9*2=18

4) 9*2=18

5) 9*6=54

6) 9*6=54

then, you have to add all 6 sides together.

12+12+18+18+54+54

24+36+108

60+108

<u>168 cm squared is the surface area</u>

You might be interested in

A poster measures 9 1/2 inches by 11 3/4 inches estimate the area of poster

Lerok [7]

Answer:

111.625

Step-by-step explanation:

PICK me for BRAINLIEST

5 0

3 years ago

Use unit rate to find the unknown value. 15/45 = 6/? B Draw a bar model to find the unknown.

Anettt [7]

Answer:a

Step-by-step explanation:did it

7 0

3 years ago

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

3 years ago

Express the given logarithm in terms of common logarithms. Then approximate its value to four decimal places.

zhannawk [14.2K]

Answer:

3.4594

Step-by-step explanation:

To change the base of a logarithm

• $log_{b}$ x = $\frac{log_{c}x }{log_{c}b }$