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3 years ago

What is the sum of 153 and 121

Mathematics

1 answer:

Gre4nikov [31]3 years ago

7 0

153
+121
274

Hope this helps!

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A formula for finding A, the area of a triangle is A=1/2bh, where b is the base of the triangle and h is the altitude to that ba

seropon [69]

Answer:

48 inches²

Step-by-step explanation:

Substitute b = 16 and h = 6 into the formula for A

A = $\frac{1}{2}$ × 16 × 6 = 8 × 6 = 48 inches²

7 0

3 years ago

You have 16 different cuts of flowers and plan to use seven of them how many different selections of the seven flowers are possi

alisha [4.7K]

We can have 11440 different selections.

SOLUTION: 

Given, you have 16 different cuts of flowers

And you have planned to use seven out of them.

We have to find how many different selections of the seven flowers are possible. Now, we have to select 7 items out of 16 available items. So we have to use combinations.

Then, 7 out of 16 combination $\rightarrow^{16} \mathrm{c}_{7} \rightarrow \frac{16 !}{(16-7) ! 7 !}$

$\bold{\text{ Since } ^nC_r=\frac{n !}{(r !(n-r) !)}}$

$\begin{array}{l}{\rightarrow \frac{16 !}{9 ! \times 7 !}} \\\\ {\rightarrow \frac{16 \times 15 \times 14 \times 13 \times 12 \times 11 \times 10 \times 9 !}{9 ! \times 7 !}} \\\\ {\rightarrow \frac{16 \times 15 \times 14 \times 13 \times 12 \times 11 \times 10}{7 \times 6 \times 13 \times 12 \times 11 \times 10}} \\\\ {\rightarrow \frac{57657600}{5040}} \\\\ {\rightarrow 11440}\end{array}$

Hence, we can have 11440 different selections.

6 0

3 years ago

What is the slope of the line 2x+5y=25

natali 33 [55]

You can put this solution on YOUR website! You must first get the equation into slope-intercept format: y = mx + b. . 2x+-+5y+=+-25 . Subtract 2x from both sides

6 0

3 years ago

Read 2 more answers

The ages of three children in a family can be expressed as consecutive integers. The square of the age of the youngest child is

tensa zangetsu [6.8K]

Answer: 10, 11, & 12

Step-by-step explanation:

Let x represent the age of the youngest child.

Their ages are consecutive so,

Youngest: x

Middle: x + 1

Oldest: x + 2

The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.

x² = 8(x + 2) + 4

x² = 8x + 16 + 4

x² = 8x + 20

x² - 8x - 20 = 0

(x - 10)(x + 2) = 0

x - 10 = 0 or x + 2 = 0

x = 10 or x = -2

Since age cannot be negative, x = -2 is not valid

So, the Youngest (x) is 10

the Middle (x + 1) is 11

and the Oldest (x + 2) is 12

4 0

3 years ago

PLEASE HELP PLEASE SHOW WORK PUT 15 YEARS OLD P.S I'M NOT 15

oksano4ka [1.4K]

Answer:

Step-by-step explanation:

FV = p (1+i)^n -1

pv = 700,000

i = .075/12 = .00625

n = (66 - 15)* 12 = 612

700,000 = P (( 1 + .00625)^ 612 -1 /.00625

4375 = P (1.00625)^612 -1)

P = $98.77

4 0

3 years ago