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Thank you!

Answer:

The surface area of the pyramid is 340.2 cm²

Step-by-step explanation:

We can find the surface area of this pyramid by adding up the area of its square base and the four side triangles.

We're told that the base has a side length of 9.0 cm, so we know that its area is (9.0cm)², or 81cm²

We are told that the height of the side triangles is 14.4 cm.  To find the area of a triangle, simply multiply its width times its height, and divide by two:

(14.4cm × 9cm) ÷ 2

= 129.6cm² ÷ 2

= 64.8 cm²

Now we can multiply that by 4, and add it to the base area to get the total surface area of the pyramid:

4 × 64.8cm² + 81cm²

= 259.2cm² + 81cm²

= 340.2cm²

Step-by-step explanation:

of course the answer is linear

Answer: D and F

Step-by-step explanation:

Answer:

6 ballpoints pens is the better buy

Step-by-step explanation:

$4.80 x 6 = $28.80

$6.48 x 8 = $51.84

It's cheaper

Answer:

4/25 as a decimal is 0.16

Hope this helps!!!

Answer:

6.63

Step-by-step explanation:

This is the answer because 26.54 - 75 %

=6.63

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Answer:

hi

Step-by-step explanation:

Answer:

root 50

Step-by-step explanation:

Pythagorean theorem d is the hypotenuse

Answer:

5/2

Step-by-step explanation:

/50 if you do a2+b2=c2 and c=d

Answer:

30 points

Step-by-step explanation:

Answer:

The center of dilation is a fixed point in the plane. If the scale factor is greater than 1, the image is an enlargement (a stretch). If the scale factor is between 0 and 1, the image is a reduction (a shrink). If the scale factor is 1, the figure and the image are congruent.

Step-by-step explanation:

Answer:

The answer is 3(100) + 3(20) + 3(3)

Step-by-step explanation:

Answer:

Multiple 5 time 8 times 11 which is 440

Step-by-step explanation:

I took the same test

Answer:

440

Step-by-step explanation:

I took the test.

Answer:

2), or 13

Step-by-step explanation:

x = 26/2  = 13

Answer:

13 is the the value of x.

Answer: the one is the middle is the d orrect answer i got this question last year too

Step-by-step explanation:

Answer:

A. The car has the fastest speed

Step-by-step explanation:

car=450/9=50

Bus= 510/12=42.5

Train=200/8=25

Therefore the car is the fastest

Answer: 80

Step-by-step explanation: established

Answer:

h = 9x

Step-by-step explanation:

Given: i. for the cylinder, base radius = 2x cm, height = h cm

           ii. for the sphere, radius = 3x cm

           iii.  volume of the cylinder = volume of the sphere

volume of a cylinder is given as;

volume = [tex]\frac{1}{3}[/tex][tex]\pi[/tex][tex]r^{2}[/tex]h

where: r is its base radius and h the height

volume of the given cylinder = [tex]\frac{1}{3}[/tex][tex]\pi[/tex] x [tex](2x)^{2}[/tex] x h

                                              = [tex]\frac{1}{3}[/tex][tex]\pi[/tex] x 4[tex]x^{2}[/tex] x h

                                              = [tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]x^{2}[/tex] h

volume of a sphere = [tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]r^{3}[/tex]

where r is the radius.

volume of the given sphere =  [tex]\frac{4}{3}[/tex][tex]\pi[/tex] x [tex](3x)^{3}[/tex]

                                         =  [tex]\frac{4}{3}[/tex][tex]\pi[/tex] x 9 [tex]x^{3}[/tex]

                                         = 12[tex]\pi[/tex][tex]x^{3}[/tex]

Since,

volume of the cylinder = volume of the sphere

Then we have;

[tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]x^{2}[/tex] h = 12[tex]\pi[/tex][tex]x^{3}[/tex]

4[tex]\pi[/tex][tex]x^{2}[/tex] h = 36[tex]\pi[/tex][tex]x^{3}[/tex]

subtract [tex]x^{2}[/tex] from both sides

4[tex]\pi[/tex]h = 36[tex]\pi[/tex]x

divide both sides by 4[tex]\pi[/tex]

h = [tex]\frac{36\pi x}{4\pi }[/tex]

  = 9x

h = 9x

Answer:

a squared+ 5a

Step-by-step explanation:

a(a+5)

multiply everything inside the bracket

a times a is a squared

a times 5 is 5a

i hope i helped

please give me a brainliest!!<3

Answer:

0.875

Step-by-step explanation:

Answer:

65% are green

Step-by-step explanation:

13 is 65% of 20

Answer:

x=2

Step-by-step explanation:

Given: 3ln2 +ln8=2ln(4x)

          ⇒ln [tex]2^{3}[/tex]+ln8=2ln(4x)            ( m ln (n)= ln([tex]n^{m}[/tex]))

             ⇒ ln8+ln8= 2ln(4x)

            ⇒ 2ln8= 2ln(4x)

   comparing both sides, we get

  8=4x

  ⇒x=2

Answer:

$17.45

Step-by-step explanation:

$17.45*3=52.35

$52.35+$45.99=$98.34

Answer:

Amounts of first payment =  $369.60

Amounts of Second and third payment =  $277.20

Step-by-step explanation:

Given:

Annual premium = $924

First payment = 40%

Second payment = 30%

Third payment = 30%

Find:

Amounts of three payments

Computation:

Amounts of first payment = $924 x 40%

Amounts of first payment =  $369.60

Amounts of Second payment = $924 x 30%

Amounts of Second payment =  $277.20

Amounts of third payment = $924 x 30%

Amounts of third payment =  $277.20

Answer:

Step-by-step explanation:

Slope is always rise over run.

"rise" up -1 or down in this situation because it is a negative

then 'run' or move to the right 2 places on the x-axis

Answer:

Question 3: 93    Question 4: -18

Step-by-step explanation:

Use Order of Operations (BEDMAS - Brackets Exponents Division Multiplication Addition and Subtraction).

Question 3:

Start with the numbers inside the brackets.

3^2 (4+6) + 3

= 3^2 (10) + 3

Then, solve the exponents.

= 9 (10) + 3

Multiply 9 and 10.

= 90 + 3

Add the numbers.

= 93

Question 4:

Again, start with the brackets.

3 (4+2) - 6^2

= 3 (6) - 6^2

Then, solve the exponent.

= 3 (6) - 36

Multiply 3 and 6.

= 18 - 36

Subtract the numbers.

= -18 (You can do 36 - 18 which is 18, then add the negative sign)

Answer: 3550

Step-by-step explanation:

1.6L equals 1600mL

8700-1600=7100 remaining

7100 divided by 2 = 3550

Answer:it’s either 2 or 16

Step-by-step explanation:

Answer:

x < -12

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Equality Properties

Step-by-step explanation:

Step 1: Define

16 < -2(x + 4)

Step 2: Solve for x

Here we see that any number x smaller than -12 would work as a solution to the inequality.

Answer:

x = 2.857 [rounded]

Step-by-step explanation:

17 x 2 = 34.

Next, we combine.

34 - 14 = 20.

Lastly, we divide 20 by 7.

20 / 7 = 2.857

[The answer is a decimal that doesn't end, but I rounded it for simplicity.]

Answer:

p=15

Step-by-step explanation:

24/8=3

3x5=15

Answer:

bratdth = 8 m

perimeter = 12 m

we know

perimeter of rectangle = 2(l+b)

24=2(l+8)

24=2l+16

24-16=2l

8=2l

8/2=l

l=4m

for second picture

breadth = 5m

length =4 m

p =?

we know

p= 2(l+b)

p=2(4+5)

p=2×9

p=18m