All categories

2 years ago

In equilateral triangles STU:

Mathematics

2 answers:

Len [333]2 years ago

7 0

<h3>Answer: B) 39</h3>

==========================================================

Explanation:

Equilateral triangles have three equal sides, ie the sides are all the same length.

Let's set sides ST and TU equal to each other and solve for x

7x-10 = 2x+25

7x-2x = 25+10

5x = 35

x = 35/5

x = 7

Then we use this to compute each side

ST = 7x-10 = 7*7-10 = 49-10 = 39
TU = 2x+25 = 2*7+25 = 14+25 = 39
US = x^2 - 10 = 7^2 - 10 = 49-10 = 39

Each side is 39 units long, so this confirms we have the correct answer.

AysviL [449]2 years ago

5 0

The answer is b 39 pretty sure that’s correct

You might be interested in

A recipe uses 2 1/4 cups of flour for a batch of cookies. Henry makes 10 batches of cookies for a bake sale.

andrew-mc [135]

Answer: 22 1/2 cups

Step-by-step explanation:

multiply 2 1/4 (2.25) by 10 and you get 22.5 or 22 1/4 cups

7 0

2 years ago

if 6 banannas are $1.50 and 5 oranges are $3.00 how much would it cost if i buy 2 banannas,and 2 oranges.

Deffense [45]

2 bananas are $0.50
2 oranges are $1.20

5 0

2 years ago

Read 2 more answers

Write as an expression and simplify:

Bad White [126]

Answer:

(a) The product of the sum of a and b and their difference.

$(a+b)\times{(a-b)}\\=a^2-b^2$

(b) The tripled product of 6a and b².

$3(6a\times{b^2})\\=3(6ab^2)\\=18ab^2$

$(2m)^2-(7n)^2\\=4m^2-49n^2$

5 0

3 years ago

How much is 11 cents + 6 dimes+ 3 quaters + two 5 cents equals?

Dahasolnce [82]

Answer: one dollar and 56 cents

Step-by-step explanation:

11 cents= one peny is one cent

6 dimes= 60 cents, one dime is 10 cents

3 qurters= 75 cents, one quaters is 25 cents

2 nicales= 10 cents, one nicale is 5 cents

one dollar is 100 cents

7 0

2 years ago

Read 2 more answers

Help my math please<br> Due date is in 3 hours

Bumek [7]

Answer:

see explanation

Step-by-step explanation:

(a)

To change a mixed number to an improper fraction

Multiply the whole number by the denominator of the fraction and add the numerator. This value is the numerator of the improper fraction while the denominator remains unchanged, that is

(2 × 13) + 12 = 26 + 12 = 38 ← numerator

2 $\frac{12}{13}$ = $\frac{38}{13}$

(b)

To change an improper fraction to a mixed number

divide the numerator by the denominator, noting the remainder, which forms the numerator of the fraction in the mixed number.

$\frac{47}{19}$ = 2 remainder 9, hence

$\frac{47}{19}$ = 2 $\frac{9}{19}$

7 0

3 years ago