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3 years ago

HELP PLEASE here’s the question

Mathematics

2 answers:

Gemiola [76]3 years ago

7 0

Answer:

1 hour and 54 minutes or 1.9 hours

Step-by-step explanation:

polet [3.4K]3 years ago

5 0

Answer:

1.9 hours

Step-by-step explanation:

7.6 divided by 4

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Factor as the product of two binomials. X^2 – 10x + 21

kondaur [170]

You can use the butterfly method. Two numbers that equal A times C must also add up to B. A=1 B=-10 C=21. A times C is 21 and B is -10. Two numbers that multiply to 21 and add to -10 are -7 and -3. Factored form: ( x - 7 )( x - 3 ).

5 0

3 years ago

6x^2-9x +2=0 solve the quadratic equation using the quadratic formula

balu736 [363]

ANSWER:

The roots of $6 x^{2}-9 x+2=0$ are $\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}$

SOLUTION:

Given, quadratic equation is $6 x^{2}-9 x+2=0$ --- eqn (1)

We need to find the roots of given quadratic equation using quadratic formula.

Quadratic formula for general quadratic equation $a x^{2}+b x+c=0$ is $X=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here, for eqn (1) a = 6, b= -9 and c = 2

$X=\frac{-(-9) \pm \sqrt{(-9)^{2}-4 \times6 \times 2}}{2 x 2}$

$X=\frac{9 \pm \sqrt{81-48}}{4}$

$\begin{array}{l}{X=\frac{9 \pm \sqrt{33}}{4}} \\ {X=\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}}\end{array}$

Hence the roots of $6 x^{2}-9 x+2=0$ are $\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}$

6 0

3 years ago

What is the slope of a line parallel to the line that passes through (4, -3) and (3, -1)?

FinnZ [79.3K]

Answer:

-2

Step-by-step explanation:

find rise over run with y1-y2/x1-x2 = -2/1 = -2

5 0

3 years ago

What is the value of x? Enter your answer, as a decimal, in the box.

Oksana_A [137]

Answer:

42.9m

Step-by-step explanation:

The topic is on similar triangle

you are comparing triangle MNP with triangle MAB

side AB is similar to NP

side MA is similar to MN

side MB is similar to MP

now MA = MN - AN

= 67.2 - 32

= 35.2m

MA/MN = MB/MP

35.2/67.2 = x/81.9

cross multiply and solve

x = 42.9m

4 0

3 years ago

Read 2 more answers

if jenkins had 254 to spend,then bought 9 t-shirts and had 29 remaining,how much was each shirt? assuming that each shirt costs

nataly862011 [7]

Answer:

each shirt costs $25

Step-by-step explanation:

we can make an equation using x as the cost of each shirt. since 254 was the total, they will=254 together , and since we have 9 shirts, its 9x. we can use this info to create the equation 9x+29=254. we subtract 29 on each side to get 9x=225. we then divide 9 on both sides to get x=25. so each shirt costs $25

Brainliest plzzz

4 0

3 years ago