All categories

3 years ago

Solve for x. x2 + 8x + 15 = 0

Mathematics

1 answer:

likoan [24]3 years ago

7 0

Answer: x=−3 or x=−5

Step-by-step explanation:

Step 1: Factor left side of equation.

(x+3)(x+5)=0

Step 2: Set factors equal to 0.

x+3=0 or x+5=0

x=−3 or x=−5

You might be interested in

Which graph best represents the line y= -1/5x+2

vodomira [7]

Answer:

Step-by-step explanation:

Line crosses y-axis at 2.

Slope = $\frac{-1}{5}$

For each 1 square the line rises/falls it moves to the right/left 5 squares.

Negative slope lines are downhill left to right.

8 0

3 years ago

Read 2 more answers

Quadrilateral BCDE has vertices B(-1, -1), C(6,-2), D(5, -9), and E(-2,-8).

natima [27]

B because it make the most sense

3 0

3 years ago

If the slope of a line is 2 and the y-intercept is 7, what would the equation be in slope intercept form?

Artist 52 [7]

Answer:

y = 2x+7

Step-by-step explanation:

y = mx + c

m = slope

c is the y intercept

y = 2x+ 7

6 0

2 years ago

If an 8-foot ladder is leaned against a wall with its foot braced 4 feet from the wall's base, how far up the wall will the top

vivado [14]

We know that
see the picture to better understand the problem
in the right triangle ABC
Applying the Pythagoras Theorem
AB²=BC²+AC²-------> BC²=AB²-AC²
AB=8 ft
AC=4 ft
BC²=8²-4²-----> BC²=48--------> BC=√48-------> BC=6.93 ft

the answer is
6.93 ft

8 0

3 years ago

A grocery store clerk has 16 oranges ,20 apples and 24 pears the clerk needs to put an equal number of apples , oranges and pear

anyanavicka [17]

A.) The clerk has - 16 oranges 20 apples 24 pears

he needs to put all three fruits into baskets without any leftover fruits

each basket should have equal amounts of each fruit

so to find the largest number of baskets he can make we have to find the highest common factor for 16,20 and 24

so lets find the factors for each of these

16 - 1,2,4,8,16

20 - 1,2,4,5,10,20

24 - 1,2,3,4,6,8,12,24

from the given factors the common factors for all three are 1,2 and 4

from these the highest factor is 4

therefore the largest number of baskets he can make are 4

in each basket there will be

4 oranges 5 apples 8 pears

answer is 4 baskets

4 0

3 years ago