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2 years ago

I WILL MARK 10/10 IF U GET ANSWER CORRCET!!10 Fill in the blanks to make each equation true.

Mathematics

1 answer:

ANTONII [103]2 years ago

3 0

Answer:

a) 2.6

b) -15

c) 9

d) $\frac{3}{10}-(-\frac{2}{3})=\frac{3}{10}+\frac{2}{3}=\frac{9}{30}+\frac{20}{30}=\frac{29}{30}$

e) 1.26

Step-by-step explanation:

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What is y=4x^2-9x+1 in vertex form

Anna11 [10]

Answer:

$y = 4 \left(x - \dfrac{9}{8} \right)^2 - \dfrac{65}{16}$

Step-by-step explanation:

$y = 4x^2 - 9x + 1$

You need to complete the square on the right side.

$y = (4x^2 - 9x) + 1$

$y = 4(x^2 - \dfrac{9}{4}x) + 1$

$y = 4 \left( x^2 - \dfrac{9}{4}x + \left( \dfrac{9}{8} \right)^2 \right) + 1 - 4\left( \dfrac{9}{8} \right)^2$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - 4 \left( \dfrac{81}{64} \right)$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - \dfrac{81}{16}$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + \dfrac{16}{16} - \dfrac{81}{16}$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 - \dfrac{65}{16}$

3 0

2 years ago

Sum of interior angles of a convex 14-gon

just olya [345]

Answer: 2160°

Step-by-step explanation:

The sum of angles in a polygon is represented by the formula:

Sum = (n - 2) x 180° where n is the number of sides in the polygon

In this case, the complex polygon has 14 sides (n = 14)

So, (14 - 2) x 180°

= 12 x 180°

= 2160°

Thus, the sum of interior angles of a convex 14-gon is 2160°

3 0

3 years ago

(2,170), (5,365) slope

Alexxandr [17]

Answer:

To find the slope given two points, use the slope formula. The slope formula is Y2-Y1/X2-X1. Substitute in the given points and solve.

365-170/5-2

195/3

The slope of the two points is 65.

Hope this helps! :)

5 0

2 years ago

Solve the equation below Explain your steps . Show your math work 2(3x + 4) = 4x + 2

lisabon 2012 [21]

Answer:

x = -3

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

3.4 is what percent of 4.25? Enter your answer in the box.

Masteriza [31]

Step-by-step explanation:

100% = 4.25

1% = 100%/100 = 4.25/100 = 0.0425

how many % are 3.4 ?

we find this by calculating how often 1% (0.0425) fits into 3.4.

3.4 / 0.0425 = 80 %

6 0

2 years ago