All categories

2 years ago

Which phrase best defines a rhombus?

Mathematics

1 answer:

Whitepunk [10]2 years ago

6 0

B. a parallelogram with four congruent sides

You might be interested in

Ivan makes 340 per week. how much would he make per week if he got a 5% raise

lys-0071 [83]

Finde 5%
percent means parts out of 100 so 5%=5/100=1/20
find 1/20 of 340 and add that to 340
'of' in math translates to multiply
1/20 times 340=340/20=34/2=17
add that to 340
340+17=357

he would make 357 a week

7 0

3 years ago

Let A and B be two disjoint events such that P(A) = 0.47 and P(B) = 0.3.<br><br> What is P(A or B)?

Alchen [17]

<h3>Answer: 0.77</h3>

Work Shown:

P(A or B) = P(A) + P(B)

P(A or B) = 0.47 + 0.30

P(A or B) = 0.77

Notes:

The formula only works if A and B are disjoint, aka mutually exclusive
If A and B are not disjoint, then use this formula: P(A or B) = P(A) + P(B) - P(A and B)

6 0

2 years ago

Read 2 more answers

Can someone please help me solve this ? (x^?) = x6.

PolarNik [594]

Answer:

x=6 to that's my answer

Step-by-step explanation:

2x+3=15

5 0

2 years ago

Please help asapp three questions 72 pts

viva [34]

$x^2-11x=x^2-2x\cdot5.5+5.5^2-5.5^2=(x-5.5)^2-30.25\\\\=(x-5.5)^2-30\dfrac{1}{4}=(x-5.5)^2-\dfrac{121}{4}\\\\\boxed{Answer:\ n=\dfrac{121}{4}}$

$9x^2-21=0\ \ \ |+21\\\\9x^2=21\ \ \ \ |:9\\\\x^2=\dfrac{21}{9}\to x=\pm\sqrt{\dfrac{21}{9}}\\\\\boxed{Answer:\ 1.53,\ -1.53}$

$x^2+2x=15\\\\x^2+2x\cdot1=15\ \ \ |+1^2\\\\\underbrace{x^2+2x\cdot1+1^2}_{(a+b)^2=a^2+2ab+b^2}=15+1^2\\\\(x+1)^2=16\to x+1=\pm\sqrt{16}\\\\x+1=-4\ \vee\ x+1=4\ \ \ |-1\\\\\boxed{Answer:\ x=-5,\ x=3}$

6 0

3 years ago

What is this answer

Radda [10]

use the distance formula

$\sqrt{(x2-w1)^{2} +(y2-y1) ^{2} }$

You ll need to do it t times:

x1 y1 x2 y2

(-1, 5) (4, 2) = (-1, 5) (4, 2)

(4, 2) (0,0)

(0,0) (5,5)

(5,5) (-1, 5)

then add all your results

4 0

3 years ago