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2 years ago

What values of x where f(x)=-4

Mathematics

2 answers:

Anvisha [2.4K]2 years ago

6 0

Es hora de comer :D explaination

ehidna [41]2 years ago

3 0

Answer:

x = 1, 3

Step-by-step explanation:

f(x) = y

Where does y = -4?

When x = 1 and x=3

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Solve the equation for all values of x. (8x+9)(49x^2-100)=0

Liono4ka [1.6K]

Answer:

$x = \frac{-9}{8} , \frac{-10}{7} , \frac{10}{7}$

Step-by-step explanation:

8x+9=0

8x=-9

$x = \frac{-9}{8}$

$49x^{2}-100 = 0$

$(7x)^{2} -10^{2} =0$ ,

$(7x+10)(7x-10)=0$

$7x+10=0, 7x-10=0$

$7x=-10, 7x=10$

$x=-\frac{-10}{7}$ , $x = \frac{10}{7}$

4 0

2 years ago

Draw a rectangle with an area of 42 square units

Butoxors [25]

We know, Area = Length * Width

So, with area 42, dimensions could be: 1 * 42
2 * 21
3 * 14
6 * 7

Just draw the lines with that measures, two pair of two equal opposite lines.

Hope this helps!

6 0

2 years ago

Question 3 of 10

Bas_tet [7]

Answer:

A. $y-5=1.5(x-4)$ .

B. $y=1.5x-1$ .

Step-by-step explanation:

The given line passes through (2,2) and (4,5).

The slope the given line can be found using the formula;

$m=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{5-2}{4-2}$

This gives $m=\frac{3}{2}=1.5$ .

The slope-intercept form is $y-y_1=m(x-x_1)$ .

We substitute the second point to get:

$y-5=1.5(x-4)$ .

We expand to get:

$y-5=1.5x-6$ .

$y=1.5x-6+5$ .

$y=1.5x-1$ .

4 0

3 years ago

When we rewrite an expression so that it has no grouping symbols and all of the like terms have been combined, we ___ it.

Dmitriy789 [7]

Answer:

"simplify"

Step-by-step explanation:

The notion of simplifying an expression depends on the expression. For the one offered as an example, the simplification steps required are eliminating parentheses and combining like terms.

Other possible simplification steps include combining fractions, reducing fractions, and rationalizing denominators (eliminating surds or complex numbers).

It appears the vocabulary word that is desired in the blank is simplify.

8 0

3 years ago

Read 2 more answers

Tell whether each integer is prime, composite or neither

melamori03 [73]

1.; 3.; 5. are prime numbers.
All others are composite numbers.
Good luck!

6 0

2 years ago