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2 years ago

What is the value of 3x^2 + 5x + 25, when x = 3 (3x^2 means 3x squared)

Mathematics

1 answer:

pentagon [3]2 years ago

8 0

I got 67 but I can guarantee it’s right

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Write these numbers as fractions. Simplify the answers. 0.5, 12.3, 0.07, 0.625

motikmotik

0.5 => 5/10 => 1/2

12.3 => 123/10

0.07 => 7/100

0.625 => 625/1000 => 25/40 => 5/8

4 0

2 years ago

Read 2 more answers

Help! (Math and area!!)

LenKa [72]

Answer:

1.) Triangle is 1/2 x b x h (Which is option C)

2.) Rhombus is ½ × d1 × d2. (Which is option A)

3.) Trapezoid is ½(b 1+b 2)h or (b1 + b2)h/2 (Which is option B)

4.) Parallelogram is base x height (Which is option D)

Step-by-step explanation:

6 0

2 years ago

In the graph, the amount of sales tax (t) is proportional to the price (p) of an item.

shusha [124]

Answer:

i would guese c

Step-by-step explanation:

8 0

2 years ago

Please help me get ungrounded so please help me with some work thxxxxxxxxx

Galina-37 [17]

Answer:

thats so easy

Step-by-step explanation:

6 0

2 years ago

△ABC

mixas84 [53]

Answer:

The approximate perimeter of △ABC is 12.34 units

Step-by-step explanation:

we know that

The perimeter of a triangle is the sum of its three length sides

$P=AB+BC+AC$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

we have

A(3,4), B(−1,1)

substitute the values

$d=\sqrt{(1-4)^{2}+(-1-3)^{2}}$

$d=\sqrt{(-3)^{2}+(-4)^{2}}$

$d=\sqrt{25}$

$d_A_B=5\ units$

step 2

Find the distance BC

we have

B(−1,1),C(−2,5)

substitute the values

$d=\sqrt{(5-1)^{2}+(-2+1)^{2}}$

$d=\sqrt{(4)^{2}+(-1)^{2}}$

$d=\sqrt{5}$

$d_B_C=2.24\ units$

step 3

Find the distance AC

we have

A(3,4),C(−2,5)

substitute the values

$d=\sqrt{(5-4)^{2}+(-2-3)^{2}}$

$d=\sqrt{(1)^{2}+(-5)^{2}}$

$d=\sqrt{26}$

$d_A_C=5.10\ units$

step 4

Find the perimeter

$P=5+2.24+5.10=12.34\ units$

4 0

2 years ago