All categories

3 years ago

Can you help? Factor -5x^2+9x+2

Mathematics

1 answer:

Trava [24]3 years ago

3 0

Answer:

(−5x−1)(x−2)

Step-by-step explanation:

Factor $-5x^2+9x+2$

$-5x^2+9x+2$

= (−5x−1)(x−2)

You might be interested in

Subtract. Simplify, if possible. 5/8 - * 2 1 / 2 - 3

Nat2105 [25]

$2\frac{1}{2} - \frac{5}{8}$

Convert the mixed number to an improper fraction:

$\frac{5}{2} - \frac{5}{8}$

Subtract the fractions to get your final answer:

$\frac{15}{8}$

8 0

2 years ago

The distance between two cities on a map is 4.5cm. The map scale is 1cm : 40 miles. What is the actual distance between the two

eimsori [14]

Answer: 180 miles

Step-by-step explanation: 1cm=40 miles. There is 4.5 so 4*40=160 and there is also half a centimeter, which is 20 miles. 160+20

Hope this helps and brainliest would be appreciated

5 0

3 years ago

What is the value of the function when x = 0? x −2 0 1 3 6 y 1 3 4 2 0

labwork [276]

$\begin{array}{ccccccccccc}x&|&-2&|&\boxed0&|&1&|&3&|&6\\-&-&-&-&-&-&-&-&-&-&-\\y&|&1&|&\boxed3&|&4&|&2&|&0\end{array}\\.\\\\\boxed{f(0)=3}$

6 0

3 years ago

In a contest to guess the number of jelly beans in a jar, Alice guessed 25;Betty, 18;Clare,23;Dotty,19;Edith,24;and Fran,17. Two

vampirchik [111]

Answer:

There are 21 jelly beans in the jar.

Step-by-step explanation:

Suppose, the number of jelly beans in the jar is $x$

Two were off by 2, two were off by 3, two were off by 4. That means, the six guessed number will be: $(x+2), (x-2), (x+3), (x-3), (x+4), (x-4)$

Given that, Alice guessed 25; Betty, 18; Clare, 23; Dotty, 19; Edith, 24; and Fran, 17.

So, the sum of all six guessed number will be: $25+18+23+19+24+17=126$

Thus, the equation will be..........

$(x+2)+(x-2)+(x+3)+(x-3)+(x+4)+(x-4)= 126\\ \\ 6x= 126\\ \\ x=\frac{126}{6}=21$

So, the number of jelly beans in the jar is 21.

5 0

2 years ago

A six-foot-tall person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When

zhuklara [117]

Answer:

270 feet

Step-by-step explanation:

For clarity, the image below represents the problem. Let's call h the height of the tower. Notice that it forms 2 triangles that are similar to side-angle-side. So, we can calculate the higher of the tower by similar triangles:

higher1/base1 = higher2/base2

h/135 = 6/3

h/135 = 2

h = 270 ft

8 0

3 years ago